Plastic Film Capacitors
Metallized Polypropylene Film Capacitor (For Automotive)
ECWFG series
Non-inductive construction using metallized polypropylene
film with flame retardant plastic case.
Features
● High safety (with safety function)
● High moisture resistance (85℃, 85%)
・ 600 V
：420 V, 500 h
・ 630 V
：500 V, 1000 h
・ 700 V
：500 V, 1000 h
・ 800 V
：560 V, 500 h
・ 1100 V ：700 V, 500 h (C < 2.0 μF) / 770 V, 500 h (C ≧ 2.0 μF)
● High thermal shock resistance (600 to 1100 V : -55℃ ⇔ 85℃, 1000 cycles)
● High temperature load test (125℃）
・ 600 V
：360 V, 1000 h
・ 630 V
：450 V, 1000 h
・ 700 V
：450 V, 1000 h
・ 800 V
：480 V, 1000 h
・ 1100 V ：660 V, 1000 h
● Flame-retardant plastic case and non-combustible resin
● AEC-Q200 compliant
● RoHS compliant
Recommended applications
● DC/DC, AC/DC converter circuit in xEV
● High frequency and high current circuits
Explanation of part number
■ Lead pitch : 22.5 mm
1
2
3
4
5
E
C
W
F
G
Product code
6
Dielectric &
construction
7
8
Rated voltage
9
10
Capacitance
11
12
Suffix 1
Suffix 2
Code
R.voltage [DC]
Code
Cap. Tol.
Code
2J
630 V
P
±5 ％ (J)
1
Lead form
Straight
Q
±10 ％ (K)
A
Cut lead
■ Lead pitch : 27.5 mm
1
2
3
4
5
E
C
W
F
G
Product code
6
Dielectric &
construction
7
Rated voltage
Code
R.voltage [DC]
60
600 V
2J
630 V
70
700 V
80
800 V
1B
1100 V
8
9
10
Capacitance
R. volt. code
2J, 70
60, 80, 1B
11
12
Cap. Tol.
Suffix 2
Code
Cap. Tol.
Code
J
±5 ％
Blank
Straight
K
±10 ％
A
Cut lead
J
±5 ％
Design and specifications are each subject to change without notice. Ask factory for the current technical specifications before purchase and/or use.
Should a safety concern arise regarding this product, please be sure to contact us immediately.
Lead form
10-Feb-21
ECWFG (For automotive) series
Specifications
Category temp. range
−40 ℃ to +110 ℃
(Including temperature-rise on unit surface)
Rated voltage [DC]
600 V to 1100 V（ Derating of rated voltage by 1.0 % / ℃ at more than 85 ℃）
2.0 µF to 12.0 μF
Lead pitch：27.5 mm
1.0 µF to 3.0 µF
Lead pitch：22.5 mm
630 V
1.0 µF to 4.7 μF
Lead pitch：27.5 mm
700 V
1.0 µF to 4.7 μF
Lead pitch：27.5 mm
800 V
2.0 µF to 8.0 μF
Lead pitch：27.5 mm
1100 V
1.0 µF to 5.0 μF
Lead pitch：27.5 mm
±5% (J), ±10 % (K)
tan δ ≦ 0.1 % (20 ℃, 1 kHz)
Between terminals： Rated voltage (V) × 150 % 60 s
IR ≧ 3,000 ＭΩ･uF (20 ℃, 500 V [DC], 60 s)
600 V
Capacitance range
Capacitance tolerance
Dissipation factor (tan δ)
Withstand voltage
Insulation resistance (IR)
＊ In case of applying voltage in alternating current (50 Hz or 60 Hz sine wave) to a capacitor with DC rated voltage,
please refer to the page of “Permissible voltage (R.M.S) in alternating current corresponding to DC rated voltage”.
Dimensions
L±0.5
Cut lead
（Suffix A）
Marking
example
WFG105J
Marking
4.0±0.5
F±0.4
20 min.
H±0.5
T±0.5
ød±0.05
Date code
Rated voltage code
or rated voltage
Copper wire
+1.4
Q -0.6
P(Lead location limits from center)
Unit:ｍｍ
Rating · Dimensions · Quantity
■ Rated voltage [DC]：600 V, Capacitance tolerance：±5 ％(J)
Part No
ECWFG60205J( )
ECWFG60225J( )
ECWFG60275J( )
ECWFG60305J( )
ECWFG60335J( )
ECWFG60355J( )
ECWFG60395J( )
ECWFG60405J( )
ECWFG60475J( )
ECWFG60505J( )
ECWFG60565J( )
ECWFG60605J( )
ECWFG60685J( )
ECWFG60705J( )
ECWFG60755J( )
ECWFG60805J( )
ECWFG60825J( )
ECWFG60905J( )
ECWFG60106J( )
ECWFG60126J( )
Dimensions (mm)
Cap.
(μF)
L
T
H
F
ød
P
Q
2.0
2.2
2.7
3.0
3.3
3.5
3.9
4.0
4.7
5.0
5.6
6.0
6.8
7.0
7.5
8.0
8.2
9.0
10.0
12.0
31.5
31.5
31.5
31.5
31.5
31.5
31.5
31.5
31.5
31.5
31.5
31.5
31.5
31.5
31.5
31.5
31.5
31.5
31.5
31.5
8.0
8.0
9.5
9.5
9.5
9.5
10.5
10.5
12.0
12.0
12.0
12.0
12.0
13.5
13.5
13.5
13.5
13.5
13.5
17.5
17.0
17.0
18.0
18.0
18.0
18.0
21.0
21.0
24.5
24.5
24.5
24.5
24.5
28.5
28.5
28.5
28.5
28.5
28.5
32.5
27.5
27.5
27.5
27.5
27.5
27.5
27.5
27.5
27.5
27.5
27.5
27.5
27.5
27.5
27.5
27.5
27.5
27.5
27.5
27.5
0.8
0.8
0.8
0.8
0.8
0.8
0.8
0.8
0.8
0.8
0.8
0.8
0.8
0.8
0.8
0.8
0.8
0.8
0.8
0.8
0±1.0
0±1.0
0±1.0
0±1.0
0±1.0
0±1.0
0±1.0
0±1.0
0±1.0
0±1.0
0±1.0
0±1.0
0±1.0
0±1.0
0±1.0
0±1.0
0±1.0
0±1.0
0±1.0
0±1.0
2.0
2.0
2.0
2.0
2.0
2.0
2.0
2.0
2.0
2.0
2.0
2.0
2.0
2.0
2.0
2.0
2.0
2.0
2.0
2.0
Min. order Q’ty
(PCS)
Straight
400
400
400
400
400
400
300
300
200
200
200
200
200
150
150
150
150
150
150
150
Cut lead
400
400
350
350
350
350
300
300
250
250
250
250
250
150
150
150
150
150
150
100
＊( ) : Suffix for lead crimped
Design and specifications are each subject to change without notice. Ask factory for the current technical specifications before purchase and/or use.
Should a safety concern arise regarding this product, please be sure to contact us immediately.
10-Feb-21
ECWFG (For automotive) series
Rating · Dimensions · Quantity
■ Rated voltage [DC]：630 V, Capacitance tolerance：±5 ％(J), ±10 ％(K)
［ Lead pitch : 22.5 mm ］
Part No
ECWFG2J105P( )
ECWFG2J105Q( )
ECWFG2J155P( )
ECWFG2J155Q( )
ECWFG2J225P( )
ECWFG2J225Q( )
ECWFG2J305P( )
ECWFG2J305Q( )
Dimensions (mm)
Cap.
(μF)
L
T
H
F
ød
P
Q
1.0
27.0
10.5
19.0
22.5
1.0
0±0.8
1.5
27.0
12.0
21.0
22.5
1.0
2.2
27.0
15.5
24.0
22.5
3.0
27.0
17.5
26.5
22.5
Min. order Q’ty
(PCS)
Straight
Cut lead
2.25
400
350
0±0.8
2.25
300
300
1.0
0±0.8
2.25
200
250
1.0
0±0.8
2.25
150
150
＊( )：Suffix for lead crimped
［ Lead pitch : 27.5 mm ］
Part No
ECWFG2J105□( )
ECWFG2J155□( )
ECWFG2J225□( )
ECWFG2J305□( )
ECWFG2J475□( )
Dimensions (mm)
Cap.
(μF)
L
T
H
F
ød
P
Q
1.0
1.5
2.2
3.0
4.7
31.5
31.5
31.5
31.5
31.5
9.5
10.5
12.0
13.5
17.5
18.0
21.0
24.5
28.5
32.5
27.5
27.5
27.5
27.5
27.5
1.0
1.0
1.0
1.0
1.0
0±0.8
0±0.8
0±0.8
0±0.8
0±0.8
2.0
2.0
2.0
2.0
2.0
＊□：Capacitance tolerance code
Min. order Q’ty
(PCS)
Straight
400
300
200
150
100
Cut lead
350
300
250
150
100
＊( ) : Suffix for lead crimped
■ Rated voltage [DC]：700 V, Capacitance tolerance：±5 ％(J), ±10 ％(K)
Part No
ECWFG70105□( )
ECWFG70155□( )
ECWFG70205□( )
ECWFG70225□( )
ECWFG70305□( )
ECWFG70395□( )
ECWFG70475□( )
Dimensions (mm)
Cap.
(μF)
L
T
H
F
ød
P
Q
1.0
1.5
2.0
2.2
3.0
3.9
4.7
31.5
31.5
31.5
31.5
31.5
31.5
31.5
9.5
10.5
12.0
12.0
13.5
17.5
17.5
18.0
21.0
24.5
24.5
28.5
32.5
32.5
27.5
27.5
27.5
27.5
27.5
27.5
27.5
1.0
1.0
1.0
1.0
1.0
1.0
1.0
0±0.8
0±0.8
0±0.8
0±0.8
0±0.8
0±0.8
0±0.8
2.0
2.0
2.0
2.0
2.0
2.0
2.0
＊□：Capacitance tolerance code
Min. order Q’ty
(PCS)
Straight
400
300
200
200
150
100
100
Cut lead
350
300
250
250
150
100
100
＊( ) : Suffix for lead crimped
■ Rated voltage [DC]：800 V, Capacitance tolerance：±5 ％(J)
Part No
ECWFG80205J( )
ECWFG80225J( )
ECWFG80275J( )
ECWFG80305J( )
ECWFG80335J( )
ECWFG80355J( )
ECWFG80395J( )
ECWFG80405J( )
ECWFG80475J( )
ECWFG80505J( )
ECWFG80565J( )
ECWFG80605J( )
ECWFG80685J( )
ECWFG80705J( )
ECWFG80755J( )
ECWFG80805J( )
Dimensions (mm)
Cap.
(μF)
L
T
H
F
ød
P
Q
2.0
2.2
2.7
3.0
3.3
3.5
3.9
4.0
4.7
5.0
5.6
6.0
6.8
7.0
7.5
8.0
31.5
31.5
31.5
31.5
31.5
31.5
31.5
31.5
31.5
31.5
31.5
31.5
31.5
31.5
31.5
31.5
10.5
10.5
12.0
12.0
12.0
13.5
13.5
13.5
13.5
16.0
16.0
16.0
17.5
17.5
17.5
17.5
21.0
21.0
24.5
24.5
24.5
28.5
28.5
28.5
28.5
29.5
29.5
29.5
32.5
32.5
32.5
32.5
27.5
27.5
27.5
27.5
27.5
27.5
27.5
27.5
27.5
27.5
27.5
27.5
27.5
27.5
27.5
27.5
0.8
0.8
0.8
0.8
0.8
0.8
0.8
0.8
0.8
0.8
0.8
0.8
0.8
0.8
0.8
0.8
0±1.0
0±1.0
0±1.0
0±1.0
0±1.0
0±1.0
0±1.0
0±1.0
0±1.0
0±1.0
0±1.0
0±1.0
0±1.0
0±1.0
0±1.0
0±1.0
2.0
2.0
2.0
2.0
2.0
2.0
2.0
2.0
2.0
2.0
2.0
2.0
2.0
2.0
2.0
2.0
Min. order Q’ty
(PCS)
Straight
300
300
200
200
200
150
150
150
150
150
150
150
150
150
150
150
Cut lead
300
300
250
250
250
150
150
150
150
100
100
100
100
100
100
100
＊( ) : Suffix for lead crimped
Design and specifications are each subject to change without notice. Ask factory for the current technical specifications before purchase and/or use.
Should a safety concern arise regarding this product, please be sure to contact us immediately.
10-Feb-21
ECWFG (For automotive) series
Rating · Dimensions · Quantity
■ Rated voltage [DC]：1100 V, Capacitance tolerance：±5 ％(J)
Dimensions (mm)
Cap.
(μF)
L
T
H
F
ød
P
Q
ECWFG1B105J( )
1.0
31.5
10.5
21.0
27.5
0.8
0±1.0
2.0
ECWFG1B155J( )
1.5
31.5
12.0
24.5
27.5
0.8
0±1.0
2.0
ECWFG1B205J( )
2.0
31.5
12.0
24.5
27.5
0.8
0±1.0
2.0
ECWFG1B225J( )
2.2
31.5
13.5
28.5
27.5
0.8
0±1.0
2.0
ECWFG1B305J( )
3.0
31.5
16.0
29.5
27.5
0.8
0±1.0
2.0
ECWFG1B335J( )
3.3
31.5
16.0
29.5
27.5
0.8
0±1.0
2.0
ECWFG1B405J( )
4.0
31.5
17.5
32.5
27.5
0.8
0±1.0
2.0
ECWFG1B475J( )
4.7
31.5
18.5
35.0
27.5
0.8
0±1.0
2.0
ECWFG1B505J( )
5.0
31.5
18.5
35.0
27.5
0.8
0±1.0
2.0
Part No
Min. order Q’ty
(PCS)
Straight
Cut lead
300
300
200
250
150
150
100
100
＊( ) : Suffix for lead crimped
Design and specifications are each subject to change without notice. Ask factory for the current technical specifications before purchase and/or use.
Should a safety concern arise regarding this product, please be sure to contact us immediately.
10-Feb-21
ECWFG (For automotive) series
Characteristics data
■ Rated voltage [DC]：600 V
Electrical characteristics
Frequency characteristics
Temperature characteristics
[ Capacitance change ]
5
12.0 μF
0
2.0 μF
-5
-10
-40
-20
0
20
40
60
[ Capacitance change ]
10
Capacitance change (%)
Capacitance change (%)
10
at
1 kHz
80
5
2.0 μF
0
-5
-10
100
12.0 μF
1
10
Temperature (℃)
Dissipation factor (%)
0.2
12.0 μF
0
2.0 μF
-40
-20
0
20
40
[ Dissipation factor ]
10
0.3
0.1
60
80
8
6
4
2
0
100
12.0 μF
2.0 μF
1
10
[ Insulation resistance ]
1.E+13
1000
1.E+12
1.E+11
2.0 μF
1.E+10
1.E+09
12.0 μF
100
10
2.0 μF
1
12.0 μF
0.1
1.E+08
1.E+07
1000
[ Impedance characteristics ]
10000
Impedance (Ω)
Insulation resistance (Ω)
1.E+14
100
Frequency (kHz)
Temperature (℃)
at DC
100 V
1000
Frequency (kHz)
[ Dissipation factor ]
Dissipation factor (%)
0.4
at
1 kHz
100
-40
-20
0
20
40
60
Temperature (℃)
80
100
0.01
1
10
100
1000
10000
Frequency (kHz)
Design and specifications are each subject to change without notice. Ask factory for the current technical specifications before purchase and/or use.
Should a safety concern arise regarding this product, please be sure to contact us immediately.
10-Feb-21
ECWFG (For automotive) series
Characteristics data
■ Rated voltage [DC]：600 V
Applicable specifications
[ Permissible Current Derating
by Temperature ]
[ Permissible Current ]
Percentage to the permissible current (%)
6.0
Permissible current (A rms)
5.0 μF
4.7 μF
5.0
4.0 μF
3.9 μF
3.5 μF
3.3 μF
4.0
3.0 μF
2.7 μF
2.2 μF
100
80
60
40
39 %
20
0
-40
2.0 μF
3.0
10
100
Percentage to the rated voltage (%)
Permissible current (A rms)
12.0 μF
10.0 μF
9.0 μF
8.2 μF
8.0 μF
7.5 μF
7.0 μF
6.8 μF
6.0 μF
5.6 μF
5.0
10
100
Frequency (kHz)
20
40
60
80
100
[ Voltage Derating by Temperature ]
9.0
6.0
0
Temperature of capacitor surface (℃)
10.0
7.0
-20
1000
Frequency (kHz)
8.0
87 %
100
90
80
70
75 %
60
50
-40
-20
0
20
40
60
80
100
Temperature of capacitor surface (℃)
1000
Permissible pulse current (dV/dt)（Max. 10000 cycles）
R. voltage
[DC] (V)
Capacitance
(μF)
Code
600
2.0
2.2
2.7
3.0
3.3
3.5
3.9
4.0
4.7
5.0
205
225
275
305
335
355
395
405
475
505
dV/dt
(V/μs)
Current
（Ao-p)
40
80
88
108
120
132
140
156
160
188
200
R. voltage
[DC] (V)
Capacitance
(μF)
Code
600
5.6
6.0
6.8
7.0
7.5
8.0
8.2
9.0
10.0
12.0
565
605
685
705
755
805
825
905
106
126
Design and specifications are each subject to change without notice. Ask factory for the current technical specifications before purchase and/or use.
Should a safety concern arise regarding this product, please be sure to contact us immediately.
dV/dt
(V/μs)
Current
（Ao-p)
40
224
240
272
280
300
320
328
360
400
480
10-Feb-21
ECWFG (For automotive) series
Characteristics data
■ Rated voltage [DC]：630 V
Electrical characteristics
Temperature characteristics
at
1 kHz
10
Frequency characteristics
[ Capacitance change ]
[ Capacitance change ]
10
Capacitance change (%)
Capacitance change (%)
3.0 μF
5
3.0, 4.7 μF
0
1.0 μF
-5
-10
-40
-20
0
20
40
60
80
0
1.0 μF
-5
-10
100
4.7 μF
5
1
10
[ Dissipation factor ]
0.4
0.3
0.2
0.1
0
3.0 μF
4.7 μF
-40
-20
0
20
40
60
[ Dissipation factor ]
10
1.0 μF
80
Dissipation factor (%)
Dissipation factor (%)
0.5
8
6
3.0 μF
4
0
100
4.7 μF
2
1.0 μF
1
10
[ Insulation resistance ]
1.E+13
1000
3.0 μF
1.E+12
1.0 μF
1.E+11
1.E+10
1.E+09
4.7 μF
100
3.0 μF
10
1.0 μF
1
4.7 μF
0.1
1.E+08
1.E+07
-40
-20
0
20
1000
[ Impedance characteristics ]
10000
Impedance (Ω)
Insulation resistance (Ω)
1.E+14
100
Frequency (kHz)
Temperature (℃)
at DC
100 V
1000
Frequency (kHz)
Temperature (℃)
at
1 kHz
100
40
60
Temperature (℃)
80
100
0.01
1
10
100
1000
10000
Frequency (kHz)
Design and specifications are each subject to change without notice. Ask factory for the current technical specifications before purchase and/or use.
Should a safety concern arise regarding this product, please be sure to contact us immediately.
10-Feb-21
ECWFG (For automotive) series
Characteristics data
■ Rated voltage [DC]：630 V
Applicable specifications
[ Permissible Current Derating
by Temperature ]
Percentage to the permissible current (%)
[ Permissible Current ]
Lead pitch 22.5 mm
Permissible current (A rms)
12.0
10.0
3.0 μF
8.0
2.2 μF
1.5 μF
6.0
1.0 μF
4.0
100
80
60
65 %
40
45 %
20
0
-40
2.0
-20
0
20
40
60
80
100
Temperature of capacitor surface (℃)
0
10
100
[ Voltage Derating by Temperature ]
1000
Frequency (kHz)
Percentage to the rated voltage (%)
[ Permissible Current ]
Lead pitch 27.5 mm
Permissible current (A rms)
12.0
10.0
4.7 μF
8.0
3.0 μF
2.2 μF
6.0
1.5 μF
4.0
100
90
80
70
75 %
60
50
-40
-20
0
20
40
60
80
100
Temperature of capacitor surface (℃)
1.0 μF
Permissible pulse current (dV/dt)
（Max. 10000 cycles）
2.0
0
10
100
Frequency (kHz)
1000
R. voltage
[DC] (V)
Pitch
(mm)
22.5
630
27.5
Capacitance
(μF)
Code
1.0
1.5
2.2
3.0
1.0
1.5
2.2
3.0
4.7
105
155
225
305
105
155
225
305
475
Design and specifications are each subject to change without notice. Ask factory for the current technical specifications before purchase and/or use.
Should a safety concern arise regarding this product, please be sure to contact us immediately.
dV/dt
(V/μs)
65
50
Current
（Ao-p)
65.0
97.5
143.0
195.0
50.0
75.0
110.0
150.0
235.0
10-Feb-21
ECWFG (For automotive) series
Characteristics data
■ Rated voltage [DC]：700 V
Electrical characteristics
Temperature characteristics
10
at
1 kHz
Frequency characteristics
[ Capacitance change ]
[ Capacitance change ]
10
Capacitance change (%)
Capacitance change (%)
3.0 μF
5
3.0, 4.7 μF
0
1.0 μF
-5
-10
-40
-20
0
20
40
60
80
5
4.7 μF
0
1.0 μF
-5
-10
100
1
10
100
Temperature (℃)
at
1 kHz
Frequency (kHz)
[ Dissipation factor ]
0.4
0.3
0.2
0.1
3.0 μF
4.7 μF
0
-40
-20
0
20
40
60
[ Dissipation factor ]
10
1.0 μF
80
Dissipation factor (%)
Dissipation factor (%)
0.5
8
6
3.0 μF
4
0
100
4.7 μF
2
1.0 μF
1
10
Temperature (℃)
[ Insulation resistance ]
1.E+13
1000
1.E+12
1.0 μF
1.E+11
1.E+10
4.7 μF
100
3.0 μF
10
1.0 μF
1
4.7 μF
0.1
1.E+08
1.E+07
-40
-20
0
20
1000
[ Impedance characteristics ]
10000
3.0 μF
1.E+09
100
Frequency (kHz)
Impedance (Ω)
Insulation resistance (Ω)
1.E+14
at DC
100 V
1000
40
60
Temperature (℃)
80
100
0.01
1
10
100
1000
10000
Frequency (kHz)
Design and specifications are each subject to change without notice. Ask factory for the current technical specifications before purchase and/or use.
Should a safety concern arise regarding this product, please be sure to contact us immediately.
10-Feb-21
ECWFG (For automotive) series
Characteristics data
■ Rated voltage [DC]：700 V
Applicable specifications
[ Permissible Current Derating
by Temperature ]
Percentage to the permissible current (%)
[ Permissible Current ]
12.0
Permissible current (A rms)
10.0
4.7 μF
8.0
3.0 μF
2.2 μF
6.0
2.0 μF
1.5 μF
4.0
1.0 μF
2.0
0
10
100
100
80
60
65 %
40
45 %
20
0
-40
1000
-20
0
20
40
60
80
100
Temperature of capacitor surface (℃)
Frequency (kHz)
Percentage to the rated voltage (%)
[ Voltage Derating by Temperature ]
100
90
80
70
60
50
-40
Permissible pulse current (dV/dt)
（Max. 10000 cycles）
R.voltage
[DC] (V)
Capacitance
(μF)
Code
700
1.0
1.5
2.0
2.2
3.0
3.9
4.7
105
155
205
225
305
395
475
dV/dt
(V/μs)
50
75 %
-20
0
20
40
60
80
100
Temperature of capacitor surface (℃)
Current
（Ao-p)
50.0
75.0
100.0
110.0
150.0
195.0
235.0
Design and specifications are each subject to change without notice. Ask factory for the current technical specifications before purchase and/or use.
Should a safety concern arise regarding this product, please be sure to contact us immediately.
10-Feb-21
ECWFG (For automotive) series
Characteristics data
■ Rated voltage [DC]：800 V
Electrical characteristics
Temperature characteristics
at
1 kHz
10
5
8.0 μF
0
-5
2.0 μF
-20
0
20
40
60
80
Capacitance change (%)
Capacitance change (%)
[ Capacitance change ]
[ Capacitance change ]
10
-10
-40
Frequency characteristics
8.0 μF
5
0
-5
-10
100
2.0 μF
1
10
Temperature (℃)
at
1 kHz
Dissipation factor (%)
Dissipation factor (%)
0.2
8.0 μF
[ Dissipation factor ]
10
0.3
0.1
1000
Frequency (kHz)
[ Dissipation factor ]
0.4
100
2.0 μF
8
8.0 μF
6
4
2
2.0 μF
0
-40
-20
0
20
40
60
80
0
100
1
10
[ Insulation resistance ]
1.E+13
1000
1.E+12
1.E+11
2.0 μF
1.E+10
1.E+09
-40
-20
0
20
100
8.0 μF
10
1
0.1
8.0 μF
1.E+08
1.E+07
[ Impedance characteristics ]
10000
Impedance (Ω)
Insulation resistance (Ω)
1.E+14
1000
Frequency (kHz)
Temperature (℃)
at DC
100 V
100
40
60
Temperature (℃)
80
100
0.01
2.0 μF
1
10
100
1000
10000
Frequency (kHz)
Design and specifications are each subject to change without notice. Ask factory for the current technical specifications before purchase and/or use.
Should a safety concern arise regarding this product, please be sure to contact us immediately.
10-Feb-21
ECWFG (For automotive) series
Characteristics data
■ Rated voltage [DC]：800 V
Applicable specifications
[ Permissible Current Derating
by Temperature ]
8.0
Percentage to the permissible current (%)
[ Permissible Current ]
Permissible current (A rms)
7.0
4.7 μF
4.0 μF
6.0
3.9 μF
3.5 μF
3.3 μF
5.0
3.0 μF
2.7 μF
2.2 μF
4.0
3.0
2.0 μF
10
100
100
80
87 %
60
40
39 %
20
0
-40
1000
-20
0
20
40
60
80
100
Temperature of capacitor surface (℃)
Frequency (kHz)
[ Voltage Derating by Temperature ]
Permissible current (A rms)
Percentage to the rated voltage (%)
[ Permissible Current ]
10.0
9.0
8.0 μF
8.0
7.5 μF
7.0 μF
6.8 μF
7.0
6.0 μF
5.6 μF
100
90
80
70
60
50
-40
5.0 μF
6.0
75 %
-20
0
20
40
60
80
100
Temperature of capacitor surface (℃)
10
100
Frequency (kHz)
1000
Permissible pulse current (dV/dt) （Max. 10000 cycles）
R.voltage
[DC] (V)
Capacitance
(μF)
Code
800
2.0
2.2
2.7
3.0
3.3
3.5
3.9
4.0
4.7
205
225
275
305
335
355
395
405
475
dV/dt
(V/μs)
50
Current
（Ao-p)
100.0
110.0
135.0
150.0
165.0
175.0
195.0
200.0
235.0
R.voltage
[DC] (V)
Capacitance
(μF)
Code
800
5.0
5.6
6.0
6.8
7.0
7.5
8.0
505
565
605
685
705
755
805
Design and specifications are each subject to change without notice. Ask factory for the current technical specifications before purchase and/or use.
Should a safety concern arise regarding this product, please be sure to contact us immediately.
dV/dt
(V/μs)
50
Current
（Ao-p)
250.0
280.0
300.0
340.0
350.0
375.0
400.0
10-Feb-21
ECWFG (For automotive) series
Characteristics data
■ Rated voltage [DC]：1100 V
Electrical characteristics
Temperature characteristics
at
1 kHz
Frequency characteristics
[ Capacitance change ]
[ Capacitance change ]
10
5
5.0 μF
2.0 μF
0
-5
-10
1.0 μF
-40
-20
0
20
40
60
80
2.0 μF
Capacitance change (%)
Capacitance change (%)
10
5
0
1.0 μF
-5
-10
100
5.0 μF
1
10
Temperature (℃)
0.5
at
1 kHz
100
1000
Frequency (kHz)
[ Dissipation factor ]
[ Dissipation factor ]
10
0.3
0.2
5.0 μF
0.1
0
-40
-20
0
20
2.0 μF
40
1.0 μF
60
80
Dissipation factor (%)
Dissipation factor (%)
5.0 μF
0.4
8
6
4
2.0 μF
2
0
100
1.0 μF
1
10
Temperature (℃)
at DC
100 V
[ Insulation resistance ]
1.E+13
1000
1.E+12
1.E+11
1.0 μF
1.E+10
5.0 μF
1.E+09
2.0 μF
-40
-20
0
20
40
100
2.0 μF
10
1.0 μF
1
5.0 μF
0.1
1.E+08
1.E+07
1000
[ Impedance characteristics ]
10000
Impedance (Ω)
Insulation resistance (Ω)
1.E+14
100
Frequency (kHz)
60
Temperature (℃)
80
100
0.01
1
10
100
1000
10000
Frequency (kHz)
Design and specifications are each subject to change without notice. Ask factory for the current technical specifications before purchase and/or use.
Should a safety concern arise regarding this product, please be sure to contact us immediately.
10-Feb-21
ECWFG (For automotive) series
Characteristics data
■ Rated voltage [DC]：1100 V
Applicable specifications
[ Permissible Current Derating
by Temperature ]
Percentage to the permissible current (%)
[ Permissible Current ]
10.0
Permissible current (A rms)
5.0 μF
8.0
4.7 μF
4.0 μF
3.3 μF
6.0
3.0 μF
2.2 μF
2.0 μF
4.0
1.5 μF
1.0 μF
2.0
0
10
100
100
80
87 %
60
40
39 %
20
0
-40
1000
Frequency (kHz)
-20
0
20
40
60
80
100
Temperature of capacitor surface (℃)
Percentage to the rated voltage (%)
[ Voltage Derating by Temperature ]
100
90
80
70
60
50
Permissible pulse current (dV/dt)
(Max. 10000 cycles)
R.voltage
[DC] (V)
Capacitance
(μF)
Code
1100
1.0
1.5
2.0
2.2
3.0
3.3
4.0
4.7
5.0
105
155
205
225
305
335
405
475
505
dV/dt
(V/μs)
100
75 %
-40
-20
0
20
40
60
80
100
Temperature of capacitor surface (℃)
Current
（Ao-p)
100.0
150.0
200.0
220.0
300.0
330.0
400.0
470.0
500.0
Design and specifications are each subject to change without notice. Ask factory for the current technical specifications before purchase and/or use.
Should a safety concern arise regarding this product, please be sure to contact us immediately.
10-Feb-21
Safety and Legal Matters to Be Observed
Safety and Legal Matters to Be Observed
Product specifications and applications
■ Please be advised that this product and product specifications are subject to change without notice for
improvement purposes. Therefore, please request and confirm the latest delivery specifications that explain
the specifications in detail before the final design, or purchase or use of the product, regardless of the
application. In addition, do not use this product in any way that deviates from the contents of the company's
delivery specifications.
■ Unless otherwise specified in this catalog or the delivery specifications, this product is intended for use in
general electronic equipment (AV products, home appliances, commercial equipment, office equipment,
information and communication equipment, etc.).
When this product is used for the following special cases, please separately discuss the delivery specifications
suited to each application with the company. These include applications requiring special quality and reliability,
wherein their failures or malfunctions may directly threaten human life or cause harm to the human body
(e.g.: space/aircraft equipment, transportation/traffic equipment, combustion equipment, medical equipment,
disaster prevention/crime prevention equipment, safety equipment, etc.).
Safety design and product evaluation
■ Please ensure safety through protection circuits, redundant circuits, etc., in the customer's system design so
that a defect in our company's product will not endanger human life or cause other serious damage.
■ This catalog shows the quality and performance of individual parts. The durability of parts varies depending on
the usage environment and conditions. Therefore, please ensure to evaluate and confirm the state of each part
after it has been mounted in your product in the actual operating environment before use.
If you have any doubts about the safety of this product, then please notify us immediately, and be sure to conduct
a technical review including the above protection circuits and redundant circuits at your company.
Laws / Regulations / Intellectual property
■ The transportation of dangerous goods as designated by UN numbers, UN classifications, etc., does not apply
to this product. In addition, when exporting products, product specifications, and technical information described
in this catalog, please comply with the laws and regulations of the countries to which the products are exported,
especially those concerning security export control.
■ Each model of this product complies with the RoHS Directive (Restriction of the use of hazardous substances in
electrical and electronic equipment) (2011/65/EU and (EU) 2015/863). The date of compliance with the RoHS
Directive and REACH Regulation varies depending on the product model.
Further, if you are using product models in stock and are not sure whether or not they comply with the RoHS
Directive or REACH Regulation, please contact us by selecting "Sales Inquiry" from the inquiry form.
■ During the manufacturing process of this product and any of its components and materials to be used,
Panasonic does not intentionally use ozone-depleting substances stipulated in the Montreal Protocol and
specific bromine-based flame retardants such as PBBs (Poly-Brominated Biphenyls) / PBDEs (Poly-Brominated
Diphenyl Ethers). In addition, the materials used in this product are all listed as existing chemical substances
based on the Act on the Regulation of Manufacture and Evaluation of Chemical Substances.
■ With regard to the disposal of this product, please confirm the disposal method in each country and region
where it is incorporated into your company's product and used.
■ The technical information contained in this catalog is intended to show only typical operation and application
circuit examples of this product. This catalog does not guarantee that such information does not infringe upon
the intellectual property rights of Panasonic or any third party, nor imply that the license of such rights has been
granted.
Panasonic Industry will assume no liability whatsoever if the use of our company's
products deviates from the contents of this catalog or does not comply with the
precautions. Please be advised of these restrictions.
30-Jun-23
Matters to Be Observed When Using This Product
Matters to Be Observed When Using This Product
(Film capacitor)
Use environments
■ This product is intended for standard general-purpose use in electronic equipment, and is not designed for use in specific
environments described below. Using the product in such specific environments or service conditions, therefore, may
affect the performance of the product. Please check the performance and reliability of the product first before using the
product.
(1) The product characteristics may deteriorate in environments where the product is exposed to water, oil, direct sunlight,
ozone, UV-rays, radiant rays, etc. Do not use the product in these environments.
(2) High-humidity environment: When the capacitor is used in a high-humidity environment for a long period, moisture
permeates its outer case reaching internal elements as time goes by.
This moisture oxidizes a film deposit or spraying of metal, thus causing the capacitor problems. As a result of moisture
absorption, some types capacitors may have their capacitances increased.
(3) High temperature: There are cases where oil leaks from an ECQUG type capacitor used under high-temperature
conditions (70°C or higher). However, it rarely happens and does not affect the quality and reliability of the capacitor
at all. Nevertheless, avoid such a configuration in which the product and a component that may have a contact failure
caused by oil are incorporated together in the same circuit set. If you have any question, please feel free to contact us.
(4) Gaseous atmosphere: Avoid using the capacitor in an oxidizing gas, such as a hydrogen chloride gas, hydrogen
sulfide gas, and sulfurous acid gas. Using the capacitor in such a gaseous atmosphere results in oxidized film deposit
(aluminum) or spraying of metal (zinc) that may cause an ignition or smoking incident.
(5) Resin coat: If you intend to coat the capacitor with a resin for the purpose of improving its resistance to moisture and
gas or fixing a component, make separate inquiries to us about the matter.
A chemical solvent included in the resin permeates the metal sprayed parts or electrode (film deposit), which may
cause the degradation of the capacitor characteristics. When curing resin, the resin generates chemical reaction heat
(curing heat), which may have a negative influence on the capacitor.
When embedding the whole capacitor completely with a resin, sufficiently analyze/assess the effects of the
thermomechanical stress created by thermal expansion/shrinkage.
(6) See to it that no dust gets deposited on the product. Dust deposition on the product causes current leakage, etc.,
leading to a degradation of the product characteristics.
Cleaning conditions
■ The effects of cleaning processes on the capacitor vary widely, depending on its structure and materials. Generally
speaking, the capacitor is hardly susceptible to a CFC-based solvent and an alcohol-based solvent but is affected by
a solvent with high polarity in some cases. In many cases, the capacitor with leads is covered with an outer casing
made of an epoxy resin highly resistant to chemicals and is therefore barely affected by a cleaner. We nevertheless
advise you to clean the capacitor as quickly as possible. A chip-type laminated film capacitor (ECHU, ECWU, ECPU)
is not protected with an outer jacket. During cleaning processes, solder flux or a cleaner deposited on an element of
the capacitor, may be activated and flow into the capacitor, causing a problem.
■ Ultrasonic cleaning may cause some problems, depending on the cleaner used and ultrasonic power output.
Such problems include peeling of protective film, separation of an electrode due to resonance, and degraded
capacitor characteristics. Make sufficient examinations/confirmations before carrying out ultrasonic cleaning.
■ As a result of strict regulations on CFC-based and chlorine-based solvents, cleaners not containing such solvents
have come into wide use. Some such alternative cleaners are, however, still harmful to the chip-type laminated film
capacitor and could be harmful under improper cleaning conditions. Examine the cleaner sufficiently before using it.
If you intend to use an alternative cleaner, please contact us in advance. Cleaning methods using an alternative cleaner
include a method in which a high-pressure spray of cleaner (water) hits against the board.
In this case, the water pressure may cause the protective film to peel off from the element surface.
Research the cleaning method before executing it.
■ Dry the cleaned capacitor sufficiently so that no cleaner remains thereon. An insufficient drying process allows the cleaner
to remain on the element surface, in which case measurement of the insulation resistance of the capacitor may indicate
an apparent drop in the insulation resistance.
■ A recommended cleaner is isopropyl alcohol (IPA), which is a general industrial reagent. Recommended cleaning
conditions include a cleaning temperature of 50°C and a cleaning time of 5 minutes or shorter, which apply equally to
immersion cleaning, vapor cleaning, and ultrasonic cleaning.
■ A list of cleaners that can be or cannot be used to clean the capacitor is shown on the next page. See the list for your
reference. If you are not clear about whether or not a cleaner can be used to clean the capacitor, make sure to contact us.
30-Jun-23
Matters to Be Observed When Using This Product
Cleaning conditions
Solvent-based
Retail
product*
Ethanol
Ultrasonic cleaning or immersion cleaning for 5 minutes
○
○
○
Isopropyl alcohol (IPA)
Ultrasonic cleaning or immersion cleaning for 5 minutes
○
○
○
Silicon-based
FRW-17: ultrasonic cleaning at 60 ℃ for 5 minutes
→ FRW-1N: ultrasonic cleaning at 60 ℃ for 5 minutes
→ FRW-100: vapor drying at 100 ℃ for 1 minute
○
○
○
Halogen-based
HCFC141b-MS
Ultrasonic cleaning or immersion cleaning for 5 minutes
○
○
○
P3 Cold Cleaner 225S
Ultrasonic cleaning at 60 ℃ for 5 minutes
→ Ultrasonic rinsing with IPA at ordinary temperature for 5 minutes
→ Hot air drying at 40 ℃ for 5 minutes
○
○
○
Toluene
Ultrasonic cleaning or immersion cleaning for 5 minutes
×
○
○
Terpene Cleaner EC-7
Spray cleaning at ordinary temperature for 5 minutes
→ Spray rinsing with pure water at 50 ℃ for 5 minutes
→ Hot air drying at 80 ℃ for 5 minutes
×
○
○
Ultrasonic cleaning at 60 ℃ for 5 minutes
→ Non-blow drying at 85 ℃ for 5 minutes
×
○
○
Cleanthrough 750H
Ultrasonic cleaning at 60 ℃ for 5 minutes
→ Ultrasonic rinsing with pure water at 60 ℃ for 5 minutes
→ Hot air drying at 85 ℃ for 5 minutes
×
○
○
Cleanthrough 750L
Ultrasonic cleaning at 60 ℃ for 5 minutes
→ Ultrasonic rinsing with pure water at 60 ℃ for 5 minutes
→ Hot air drying at 85 ℃ for 5 minutes
×
○
―
×
○
―
Cleanthrough LC-841
Ultrasonic cleaning at 60 ℃ for 5 minutes
→ Ultrasonic rinsing with pure water at 60 ℃ for 5 minutes
→ Hot air drying at 85 ℃ for 5 minutes
×
○
○
Pine Alpha ST-100S
Ultrasonic cleaning at 60 ℃ for 5 minutes
→ Ultrasonic rinsing with pure water at 60 ℃ for 5 minutes
→ Hot air drying at 85 ℃ for 5 minutes
×
○
○
Aqua Cleaner 210SET
Shower cleaning at 60 ℃ for 1 minute
→ Ultrasonic rinsing with pure water at 60 ℃ for 5 minutes
→ Hot air drying at 85 ℃ for 5 minutes
×
○
○
Alcohol-based
Petroleum-based
Hydrocarbon
Terpene-based
Pure water
Water-based
Chip type Lead type
Surfactant
* Retail product: ECWFE, ECWFG
Uncleaned
Low-residue flux
ULF-500VS
○
○
○
Non-active flux
AM-173
○
○
○
○ cleaner can be used, × cleaner cannot be used, ― unconfirmed
30-Jun-23
Matters to Be Observed When Using This Product
Response to anomalies and handling conditions
■ A dielectric film is not a fire-resistant material. In contrast, an ECQE type metallized polyester capacitor and ECWF type/
ECWH type metallized polypropylene capacitors each have an outer casing made of a fire-resistant epoxy resin (UL94 V-0).
■ Because the capacitor described herein is made of a combustible material, it may generate smoke or even ignite when
exposed to excessive heat. We therefore recommend you cover the capacitor with a fire-resistant material or fire-resistant
case. When you use the capacitor at an operating voltage of 30 V AC or higher or 45 V DC or higher, to prevent
noise between a line and the ground or between different lines, we recommend you cover a resin component near the
capacitor with a fire-resistant material or fire-resistant case (to prevent a fire accident).
■ When a different component in the same circuit has short-circuited or developed an open failure, see to it that a voltage
or current higher than the rated voltage or current or excessive heat is not applied to the capacitor.
We define the maximum voltage that can be applied consecutively regardless of temperature, as rated voltage*1.
Be careful with the fact, however, that this rated voltage is different from rated voltages defined in JIS, IEC, etc.*2
*1 Definition of the rated voltage by our company
We define the maximum voltage that can be applied continuously within the entire category temperature range,
as the rated voltage. In a high-temperature condition where voltage reduction is necessary, a reduced maximum
voltage is referred to as the rated voltage. Therefore, the maximum voltage that can be applied continuously at the
category upper limit temperature is also referred to as the rated voltage.
*2 Definition of the rated voltage by JIS and IEC
JIS and IEC define the maximum voltage that can be applied continuously within a temperature range from the
category lower limit temperature to the rated temperature, as the rated voltage. According to JIS and IEC, the
maximum voltage that can be applied continuously at the category upper limit temperature is referred to as the
category voltage. In a temperature range from the rated temperature to the category upper limit temperature,
voltage reduction is necessary in some cases, where a reduced maximum voltage is referred to as
temperature-dependent reduced voltage.
■ Current that charges or discharges from the capacitor in a rapid charge or discharge causes short-circuit failure,
open failure, etc., thus leading to the degradation of the capacitor characteristics. Make sure that the capacitor is
charged or discharges with a resistance of 20 Ω/V to 1000 Ω/V or more in series. In a withstand voltage test, service
life test, etc., where numbers of the capacitors are connected in parallel, each capacitor must have a resistance of
20 Ω/V to 1000 Ω/V or more connected in series thereto.
■ Make sure that a sharp element (a screw driver, solder iron, tweezers, a chassis edge, etc.) does not hit the capacitor
surface.
Do not apply an unnecessarily heavy load to the leads (for example, by reworking the leads).
■ Accidentally dropping the capacitor on the floor may damage its characteristics. Do not use a capacitor when this
happens. If you still use such a dropped capacitor, check its quality first.
■ Be careful not to apply excessive force to the base of the leads of a lead-type capacitor. It causes the exterior resin
near the base to crack.
■ The chip-type capacitor has been developed under the assumption that it will be used as an ordinary surface-mounted
component. Avoid using a capacitor in an unusual configuration (e.g., stacking the capacitors in two layers, setting
the capacitor in a standing position, etc.). When you intend to use the capacitor in an unusual configuration, please
contact us in advance.
■ Take care to prevent water or dust from adhering to the terminal surface of the capacitor. Water or dust on the terminal
causes current leakage, corrosion, etc.
■ The capacitor emits a humming sound created by mechanical vibration of the dielectric film caused by a coulomb
force between the positive and negative electrodes. In particular, the humming sound, in the form of a sound wave
containing a source voltage distortion or harmonic component, is heard as a high-tone sound.
From the viewpoint of electrical characteristics, it poses no problem. However, when the capacitor is used at a
frequency close to the audible frequency, check the humming sound.
■ When the capacitor is used as a capacitor for preventing noise from an AC power supply (across-the-line capacitor),
a source voltage is constantly applied to the capacitor and a surge voltage, such as a lightning surge, is applied
to the capacitor as well. This may cause the capacitor to ignite or generate smoke. For such capacitors inserted
between power lines, strict safety standards are set by individual countries, using products conforming to the safety
standards is mandatory. When you are looking for across-the-line capacitors for use in domestic equipment, use
capacitors conforming to overseas certification standards or capacitors listed below.
ECQE(F)
ECQE(F)
: Rating 1000 V DC (125 V AC)
: Rating 1250 V DC (125 V AC)
ECQE(F)/(B)/(T)
ECQE(F)/(T)
: Rating 125 V AC (1A)
: Rating 250 V AC (2A)
30-Jun-23
Matters to Be Observed When Using This Product
■ When ECQE(F)1A /2A, ECQE(B)1A, and ECQE(T)1A /2A are used as across-the-line capacitors, they must satisfy
at least one of the following conditions.
(1) A varistor with a varistor voltage specified in the following table or lower is connected in parallel with the capacitor.
(2) No pulse voltage higher than the pulse voltage specified in the following table is applied across both ends of the
capacitor.
■ When using a varistor together with the capacitor, confirm the varistor with the delivery specification sheet and use a
varistor with no sign of surge-caused deterioration.
Capacitor rated voltage
125 V.AC (1A)
250 V.AC (2A)
Varistor voltage
250 V
470 V
Pulse voltage
250 Vo-p
630 Vo-p
■ When using the capacitor in equipment requiring capacitors conforming to overseas certification standards, use
capacitors (typical types) listed in the following table. To know about CQC standards in China, make an inquiry with us.
Shape
Resin case
Resin case
Resin case
Type
ECQUA
ECQUL
ECQUG
Certification standards
UL 60384-14(US), CSA E60384-14(CA), EN 60384-14(EU)
UL 60384-14(US), CSA E60384-14(CA), EN 60384-14(EU)
UL 60384-14(US), CSA E60384-14(CA), EN 60384-14(EU)
■ Using the capacitor as a voltage dropper may result in a reduction in the capacitance. For example, when an abnormal
voltage, such as surge voltage, is applied to the capacitor, a fuse inside the capacitor is activated, which reduces its
capacitance. In a worst-case scenario, the capacitor no longer functions as a voltage dropper.
Observe the capacitor carefully to see if any abnormal voltage is applied thereto. Such abnormal voltage to the capacitor
may generate high voltage applied to the circuit load. To deal with such a problem, provide the circuit with a safety
protection means.
Reliability and product life
■ Capacitor characteristics change, depending on ambient environment conditions under which the capacitor operates.
Even when the capacitor is just left as it is, humidity in the air can infiltrate the capacitor and cause a slight change in
its capacitance. An extent to which the capacitance changes in this situation varies depending on a dielectric material,
an outer casing material, a structure, etc.
We take these characteristics changes into consideration before shipping out the capacitor. However, unless a separate
agreement is made, our guarantee for the specified capacitance value will be effective only up to the delivery date.
■ When using a capacitor in a circuit that requires precise capacitor elements, such as time constant, use
polypropylene-based capacitors with less time-dependent change, such as ECWFD, ECWF(A)、ECWF(L), ECWH(A),
PPS-based ECHU(X), and ECHU(C).
■ A product conforming to "AEC-Q200" refers to a product having passed some or all of the evaluation test items defined
in AEC-Q200. To know the detailed specifications of individual products or specific evaluation test scores, please
contact us.
We issue a delivery specification sheet for each product ordered. Please confirm with the sheet when you place
an order with us.
Circuit design (working voltage)
■ The maximum working voltage applicable to a capacitor varies, depending on the voltage waveform, current waveform,
frequency, ambient temperature (surface temperature), capacitance, etc. When using a capacitor, check the voltage
waveform and current waveform applied across both terminals of the capacitor and the operating frequency and make
sure that these are within specified values. When the frequency is high, some product types take different allowable
voltages. You can confirm detailed information about this matter on delivery specification sheets.
■ The rated voltage is the maximum voltage that can be applied continuously within the category temperature range.
Operating the capacitor with a voltage higher than the rated voltage leads to dielectric breakdown of the capacitor film,
which may cause a short-circuit failure. Service lives of capacitors operating at the maximum rated voltages vary,
depending on their types.
■ When a voltage higher than the rated voltage is applied to the capacitor, it does not cause a short circuit failure
immediately because of the self-recovery ability of the capacitor, however, a drop in the insulation resistance may occur,
which can lead to smoke generation or ignition under certain circuit conditions.
■ Do not use a noise-preventing capacitor (AC rated voltage type) in a high-frequency circuit. It may cause smoke
generation or ignition under certain service conditions. Rated voltages of capacitors for electronic equipment, except that
of a special types, are usually indicated as DC voltage.
30-Jun-23
Matters to Be Observed When Using This Product
■ The capacitor has an upper limit service temperature (surface temperature) determined in accordance with the type of
a dielectric material making up the capacitor. When using the capacitor at a temperature higher than the rated temperature,
confirm the following classification table because some types capacitors require voltage reduction. Even when the
capacitor can be used at a temperature higher than the rated temperature, make sure that voltage reduction is carried
out to keep the surface temperature equal to or lower than an upper limit service temperature specified in the following
table.
A capacitor used at a high frequency shows a self-temperature rise. A voltage reduction rate shown in the following
table, therefore, cannot be applied in this case.
The AC rated voltage type capacitor does not need a temperature-dependent voltage reduction.
Dielectric material
Polyester
(PET)
Polypropylene
(PP)
Polyethylene
naphthalate
(PEN)
Polyphenylene sulfide
(PPS)
Acrylic resin
Type
ECQE(F)
ECQE(B)
ECQE(T)
ECWF(A)
Rating 250 V DC
ECWF(L)
ECWH(A)
ECWH(C)
ECWF(A)
Rating 450 V DC
ECWF(A)
Rating 630 V DC
ECWH(V)
ECWFE
Rating 450 V DC
ECWFD
Rating 630 V DC
ECWFE
Rating 630 V DC
ECWFD
Rating 450 V DC
ECWFG
Rating 630 V DC
ECWU(X)
ECWU(C)
ECWU(V16)
ECHU(X)
Rating 16 V DC
ECHU(X)
Rating 50 V DC
(0.0001 μF to 0.10 μF)
ECHU(X)
Rating 50 V DC
(0.12 μF to 0.22 μF)
ECHU(C)
ECPU(A)
Rated
temperat
ure
Category upper limit
temperature
(maximum service
temperature)
Rated voltage in a temperature
range equal to or higher than the
rated temperature
(voltage reduction rate)
85 ℃
105 ℃
1.25%/ ℃
105 ℃
105 ℃
Voltage reduction is
unnecessary.
85 ℃
105 ℃
1.25%/ ℃
85 ℃
105 ℃
1.0%/ ℃
85 ℃
85 ℃
105 ℃
85 ℃
85 ℃
110 ℃
110 ℃
105 ℃
125 ℃
85 ℃
0.62%/ ℃
1.0%/ ℃
Voltage reduction is unnecessary.
125 ℃
125 ℃
Voltage reduction is unnecessary.
105 ℃
125 ℃
1.25%/ ℃
105 ℃
85 ℃
105 ℃
85 ℃
Voltage reduction is unnecessary.
1.25%/ ℃
Voltage reduction is unnecessary.
Voltage reduction is unnecessary.
※Rated temperature: upper limit temperature that can be used continuously without involving voltage reduction
(which includes the self-temperature rise value)
※Category upper limit temperature: upper limit temperature that can be used continuously when voltage reduction
is implemented (which includes the self-temperature rise value)
Percentage (%) for rated voltage at a working
temperature equal to or lower than the rated
temperature
When the rated temperature is 85 ℃ and the category upper limit temperature is 105 ℃, voltage reduction is
carried out at a reduction rate of 1.25 %/ ℃ in a temperature range of 85 ℃ or higher.
100
90
80
70
60
50
-40 -30 -20 -10
0
10
20 30 40
50
60 70 80 90
100
Temperature of the capacitor wall （℃）
30-Jun-23
Matters to Be Observed When Using This Product
■ Use the noise-preventing capacitor (AC rated voltage type) on the primary power circuit. This capacitor is designed on the
assumption that a 50 Hz or 60 Hz sine wave voltage is applied to the capacitor. When using a capacitor with a DC rated
voltage type in an AC circuit, see "Voltage at Which DC Rated Voltage Type Capacitor Can be Used in AC Circuit.
" Do not use this type of capacitor on the primary power circuit.
■ When a capacitor is used at a high frequency, its self-heating poses a risk of thermal runaway (smoke generation, ignition).
Reduce the working voltage according to the example shown below. For capacitors used at a high frequency,
we recommend ECHU(X)/(C), ECWF(A)/(L), and ECWH(A)/(C)/(V).
Capacitor: ECWF2154JA (250 V DC, 0.15 μF) Working frequency: 40 kHz (sine wave)
Allowable current value (entered in the delivery specification sheet): 2.0 Arms at 40 kHz
V=
I
2πfC
=
2.0
2×3.14×40×103×0.15×10-6
= 53 Vrms
According to the above equation, the AC working voltage (50 Hz or 60 Hz sine wave voltage) of ECWF(A) operating
at 40 kHz and 53 Vrms is calculated at 125 Vrms. This indicates that using ECWF(A) at a high frequency causes
its allowable voltage to drop. Note that this equation cannot be applied to a working voltage not in a sine waveform,
in which case please contact with us.
■ Make sure that the peak value of a pulse voltage (Vo-p) applied across both ends of the capacitor is equal to or lower
than the rated DC voltage. When the capacitor is used at a high frequency, its self-heating impairs the voltage
endurance characteristics and may lead to destruction of the capacitor. Measure the self-temperature rise value of
the capacitor and keep it equal to or lower than the specified value.
■ When a voltage higher than the rated voltage (allowable voltage) is applied to the capacitor as a result of unusual circuit
behavior caused by a failure of a different component, provide the capacitor with a means of safety protection.
Circuit design (working current)
■ Because of its low internal impedance, the capacitor carries an extremely large current flow, depending on the circuit
in which the capacitor is incorporated. Particularly, a high pulse current could flow through the capacitor when the
power supply is turned on or off. Make sure to check whether a high pulse current is flowing through the capacitor.
When the capacitor is used in a high-frequency circuit, such as an inverter circuit and switching circuit, a large current
may flow through the capacitor. Be careful in such cases.
■ A current flow exceeding the allowable current value may put the capacitor in a low-capacitance or open state or cause
the capacitor to generate heat. This may result in degraded voltage endurance performance or short circuit, thus leading
to smoke generation, ignition, etc. When using the capacitor, keep a capacitor current and temperature equal to or
lower than the allowable current value and self-temperature rise value specified in the delivery specification sheet.
■ It is necessary that the allowable current in breakdown mode be examined in terms of both pulse current (peak current)
and continuous current (RMS current). Confirm that both pulse current and continuous current are equal to or lower
than the allowable current value and then use the capacitor.
■ The frequency characteristics of the loss tangent (tanδ) of a capacitor vary depending on the type of a dielectric material
used. For this reason, a different allowable RMS current for a given working frequency shows depending on the product
type. When a capacitor is used at a high frequency, in particular, its loss tangent (tanδ) gets larger, a current flow
larger than the RMS current causes the capacitor to thermally runaway, which may lead to smoke generation or
ignition. Using the capacitor at a high frequency, therefore, requires special caution.
Please let us know the operating conditions for the capacitor to give you detailed advice.
Otherwise, keep the self-temperature rise value and surface temperature of the capacitor within the allowable range even
in the most unfavorable operation conditions.
30-Jun-23
Matters to Be Observed When Using This Product
■ The RMS current (effective current) varies depending on the capacitance. The following graphs show allowable RMS
currents (effective currents) of typical capacitor types by frequency/capacitance. When actually using these capacitors,
measure their voltage/current waveforms and ambient temperatures/self-temperature rise values and give us these
measurements with your inquires.
Type: ECQE(F) (Polyester)
Type: ECWF(A) (Polypropylene)
Rating: 250 V DC -> 150 Vrms (sine wave) 60 Hz
Rating: 250 V DC -> 125 Vrms (sine wave) 60 Hz
Temperature: -40 ℃ to 85 ℃ (capacitor wall temperature)
Temperature: -40 ℃ to 85 ℃ (capacitor wall temperature)
10.0μF
4.5
4.0
3.5
4.7μF
3.0
2.5
2.2μF
2.0
1.0μF
1.0
1.5
0.22μF
0.5
0.0
10
50
Frequency (ｋHz)
100
0.47μF
0.10μF
0.047μF
0.010μF
0.022μF
Allowable current value (Arms）
Allowable current value (Arms）
5.0
50
100
Frequency (ｋHz)
■ When the capacitor is used in a switching circuit or snubber circuit, an instantaneous flow of large pulse current
causes the capacitor to locally generate heat. As a result, the film deposit scatters off, which may decreases the
capacitance of the capacitor or put the capacitor in an open state. This local heating may trigger a smoke
generation or ignition incident.
■ A pulse current value (10000 times) can be given as the product of dV/dt (V/µs) and a capacitance (µF) that are
specified in the delivery specification sheet. dV/dt is determined by the element structure.
■ When the capacitor is used in a large-current pulse circuit, keep the pulse current value within the allowable
pulse current (Ao-p). When applying a pulse current 10000 times or more, please contact us to discuss the
matter separately.
30-Jun-23
Matters to Be Observed When Using This Product
■ When a voltage V (V) is applied to a capacitor C (farad or F), a charge quantity Q (C) is given as Q = C・V.
At this time, a charge current I (A) flowing through the capacitor is given as I = dQ/dt. It follows, therefore, that a pulse
current I (A) is given as the product of a capacitance C (µF) and a voltage variation per time dV/dt, that is, I = C・dV/dt.
Capacitance
(μF)
103
123
153
183
223
273
333
393
473
563
683
823
(0.010)
(0.012)
(0.015)
(0.018)
(0.022)
(0.027)
(0.033)
(0.039)
(0.047)
(0.056)
(0.068)
(0.082)
104
124
154
184
224
274
334
394
474
564
684
824
(0.10）
(0.12)
(0.15)
(0.18)
(0.22)
(0.27)
(0.33)
(0.39)
(0.47)
(0.56)
(0.68)
(0.82)
105 (1.0)
125 (1.2)
155 (1.5)
185 (1.8)
225 (2.2)
275 (2.7)
335 (3.3)
395 (3.9)
475 (4.7)
565 (5.6)
685 (6.8)
825 (8.2)
106 (10.0)
Type
ECQE(F)
100 V DC
ECQE(F)
250 V DC
ECQE(F)
400 V DC
ECQE(F)
630 V DC
131
273
48
78
116
33
37
63
22
18
22
48
18
11
10
6
8
From the above table, which indicates that the allowable dV/dt value of ECQE4224KF (rated voltage 400 V DC,
capacitance 0.22 µF) is 37, the allowable pulse current value of ECQE4224KF is calculated at 8 Ao-p.Ensure,
however, that the RMS current value is equal to or lower than the allowable RMS current value.
30-Jun-23
Matters to Be Observed When Using This Product
■ When a voltage V (V) is applied to a capacitor C (farad or F), the charge quantity Q (C) is given as Q = C・V.
At this time, the charge current I (A) flowing through the capacitor is given as I = dQ/dt. It follows, therefore, that the pulse
current I (A) is given as the product of the capacitance C (µF) and the voltage variation per time dV/dt, that is, I = C・dV/dt.
Capacitance
(μF)
103
123
153
183
223
273
333
393
473
563
683
823
(0.010)
(0.012)
(0.015)
(0.018)
(0.022)
(0.027)
(0.033)
(0.039)
(0.047)
(0.056)
(0.068)
(0.082)
104
124
154
184
224
274
334
394
474
564
684
824
(0.10）
(0.12)
(0.15)
(0.18)
(0.22)
(0.27)
(0.33)
(0.39)
(0.47)
(0.56)
(0.68)
(0.82)
105 (1.0)
125 (1.2)
155 (1.5)
185 (1.8)
225 (2.2)
275 (2.7)
335 (3.3)
395 (3.9)
475 (4.7)
565 (5.6)
685 (6.8)
825 (8.2)
106 (10.0)
Type
ECQE(F)
100 V DC
ECQE(F)
250 V DC
ECQE(F)
400 V DC
ECQE(F)
630 V DC
131
273
48
78
116
33
37
63
22
18
22
48
18
11
10
6
8
From the above table, which indicates that the allowable dV/dt value of ECQE4224KF (rated voltage 400 V DC,
capacitance 0.22 µF) is 37, the allowable pulse current value of ECQE4224KF is calculated at 8 Ao-p. Ensure,
however, that the RMS current value is equal to or lower than the allowable RMS current value.
30-Jun-23
Matters to Be Observed When Using This Product
Circuit design (working temperature)
■ When the capacitor is used in an AC circuit, especially in a high-frequency circuit, the capacitor generates heat because
of the alternating current flowing therethrough. If this self-heating by the capacitor is excessive, the capacitor may
deteriorate or generate smoke or even ignite. Confirm the self-temperature rise value of the capacitor under the actual
service condition and use the capacitor at the self-temperature rise value equal to or lower than the specified
self-temperature rise value.
Measure the self-temperature rise value at room temperature in a windless condition. Refer to the delivery specification
sheet to check detailed information on the self-temperature rise value.
The specified self-temperature rise value varies depending on capacitor types. For more detailed information about
this matter, please contact us.
■ Because the working temperature range of a capacitor varies depending on dielectric materials (film types), the working
temperature range in which the capacitor can be used is specified for each capacitor type.
Note, however, that working temperature ranges listed in a catalog are surface temperatures which are different from
ambient temperatures. When using the capacitor, make sure that (ambient temperature + self-temperature rise value
(within the specified value)), that is, the surface temperature of the capacitor is within the working temperature range.
■ If the capacitor is used in a temperature condition above the working temperature range, its loss tangent (tan δ) gets
larger, inducing self-heating, which leads to exceeding the allowable value. As a result, the dielectric film deteriorates
which can cause a short circuit failure that may lead to smoke generation or ignition. When a heat dissipation plate
of a different component or resistance generating high heat is present near the capacitor, radiant heat from such an
element is applied to a part of the capacitor, in which case the temperature of the capacitor can exceed the working
temperature range and smoke generation or ignition may occur. Make sure to check the surface temperature of
elements that serve as a heat source.
Board design
■ The chip-type laminated film capacitor is mounted directly on the board without a lead interposed between the capacitor
and the board. Because of this configuration, if the thermal expansion coefficient of the capacitor and that of the board
differ widely, due to temperature change, etc., after chip mounting, it creates mechanical stress which is applied to the
capacitor. This deforms the capacitor body or cracks its soldered part, thus impairing its performance. Examine and
check the capacitor sufficiently before mounting it on the board. In particular, when using a ceramic board, please
contact us before mounting the capacitor.
Type
Item
Thermal expansion
coefficient
(×10-6/°C)
Chip-type laminated film capacitor
ECHU(X)/(C)
ECWU(X)/(C)
ECPU(A)
(PPS film)
(PEN film)
(Plastic film)
22
10
70
Resin board
Ceramic board
Paper
phenol
Paper
epoxy
Glass
epoxy
Alumina
1 ～ 30
1 ～ 15
1 ～ 25
7～8
■ Radiant heat from a heat-carrying component present near the capacitor may raise the temperature of the capacitor
above the category temperature range. Be careful in such cases. The chip-type capacitor does not have the outer
casing that the lead-type capacitor has. If an exposed part of a live component is present near the capacitor, a short
circuit may be created through the capacitor. Exercise special caution when determining the location of the capacitor.
■ If the land area of the capacitor is large, a tombstone phenomenon (chip rising) is likely to occur when the volume of
solder is not proper. Give each type of capacitor recommended land dimensions as much as possible, even though it
is disadvantageous from the viewpoint of ensuring the mounter has sufficient mount clearance.
Mounting conditions (chip-type) * Target capacitors: ECHU, ECWU, and ECPU
■ In the flow soldering process, a chip component is dipped in melted solder and resulting in a high temperature of the
component. The film capacitor has low resistance to heat. Avoid soldering it using the flow soldering process.
Applying heat directly to a capacitor from the lower surface of the printed board for repair work (using a hot plate, etc.)
may result in the degradation of the capacitor. This process must also be avoided.
30-Jun-23
Matters to Be Observed When Using This Product
■ Reflow soldering is a soldering method in which the proper amount of solder paste is deposited on the fitting land of
the surface-mounted board, the chip-type laminated film capacitor is placed on the land, and heat is applied to the
capacitor to melt the solder. We recommend the temperature profile shown in the following table for the reflow soldering
process. Note, however, that more than two reflow soldering cycles are not allowed and that the second reflow cycle
must be carried out after the capacitor temperature returns to normal temperature following the end of the first reflow
cycle.
Item
Soldering condition
The capacitor and the board
are heated in a heat-resistant
furnace or an infrared
furnace.
Component surface temperature (°C)
Soldering
Mater to note
Soldering: 235°C, 5 sec. at
maximum
300
250
≥220°C, 30 sec. at maximum
Preheating
150°C to 180°C
200
150
60 sec. to 120
100
50
0
The capacitor temperature varies
depending on the type of the board material
and the heat source. Use a glass epoxy
board of 115 mm by 50 mm and 0.8 t as
the standard board to check the capacitor
temperature.
Time (s)
■ Because the chip-type laminated film capacitor is not protected with an outer casing, an activator (halogen, etc.) in
solder paste may corrode the inner deposit electrode, which leads to the degradation of the capacitor characteristics,
such as a drop in the capacitance and an increase in the loss tangent (tanδ). Use solder paste with halogen content
of 0.1 wt%.
■ When cleaning the capacitor right after soldering it, make sure that its surface temperature is 60 ℃ or lower.
■ Maximum surface temperatures capacitors reach during the reflow process are as follows: 260 ℃ at ECHU(X)/(C),
250 ℃ at ECWU(X)/(C), and 240 ℃ at ECPU(A).
A surface temperature higher than these temperatures causes a capacitor problems with its appearance and electrical
characteristics, in which case the reliability of the capacitor cannot be guaranteed.
■ ECWU(X)/(C) and ECPU(A) are put in moisture proofing packages. Once the package is unsealed, the capacitor
absorbs moisture and its resistance to soldering heat drops. Check the note on the package that gives you the
instructions you should follow after unsealing the package. Specific instructions to follow after unsealing the package
are stated in the delivery specification sheet.
■ When using a solder iron, sufficiently preheat the board land with the iron tip and then carry out soldering work.
Do not put the iron tip directly on the body or electrode of a chip-type laminated film capacitor. Particularly, do not
bring the iron tip into contact with a side face (sectional surface) of the capacitor.
A hot solder iron coming in contact with such parts may cause the degradation of the capacitor characteristics,
such as lower insulation resistance and short circuit.
ECWU(X)/(C)
ECPU(A)
260℃ max.－4s max.
280℃ max.－4s max.
280
270
260
250
240 0
1
2
3
4
Soldering time (s)
: Specification range
5
280
270
260
250
240 0
1
2
3
4
5
Soldering time (s)
: Specification range
Solder iron tip temperature (°C)
ECHU(X)/(C)
270℃ max.－4s max.
Solder iron tip temperature (°C)
Solder iron tip temperature (°C)
Solder iron use condition
■ Avoid mounting a number of chip-type laminated film capacitors on a board using a solder iron. This process makes
temperature control difficult and may lead to the degradation of the capacitor characteristics. Avoid reusing a capacitor
(component) once removed with a solder iron.
280
270
260
250
240
0
1
2
3
4
5
Soldering time (s)
: Specification range
Solder iron wattage: 30 W
30-Jun-23
Matters to Be Observed When Using This Product
Mounting conditions (lead-type) * Target capacitors: ECQE, ECWF, ECWH, and ECQU
■ The heat-resistant temperature of a capacitor varies
Thermocouple (ø 0.1)
Capacitor
depending on the type of a dielectric film used and on
(measurement position B: capacitor element interior)
the structure and manufacturing method of the capacitor.
Metal
When mounting the capacitor on a board, set the mounting
Thermocouple (ø 0.1)
temperature such that the internal temperature of the
(measurement position A: metal-sprayed part)
capacitor (see the figure on the right) is equal to or lower
than the mounting heat-resistant temperature listed in the
following table.
When a capacitor is sent through a high-temperature atmosphere after being subjected to the (flow) soldering process,
check the mounting temperature including the temperature of the capacitor in the high-temperature atmosphere.
Polypropylenebased
Polyester-based
Mounting heat-resistant temperature (peak value)
Type
Measurement position A Measurement position B
ECWF(L) 400 V / 0.022 μF to 0.11 μF,
ECWF(L) 630 V / 0.01 μF to 0.043 μF, ECWF(A)
135 ℃
125 ℃
ECWF(L) 400 V / 0.12 μF to 2.4 μF,
ECWF(L) 630 V / 0.047 μF to 1.3 μF,
ECWFE 630 V, ECWFG 630 V
145 ℃
125 ℃
ECWH(A), ECWH(V), ECWFD 630 V
ECWH(C)
ECWFD 450 V
ECQUA, ECWFE 450 V
ECQE(F)
ECQE(B), ECQE(T), ECQUL, ECQUG
135 ℃
140 ℃
135 ℃
125 ℃
―
160 ℃
125 ℃
125 ℃
―
―
120 ℃
―
■ Set temperature conditions for soldering within the ranges
shown in the graph on the right (make sure to confirm that the
set temperature conditions are equal to or lower than the mounting
heat-resistant temperature because temperature conditions vary
significantly depending on the equipment structure).
Carry out no more than two soldering cycles and in such a way
that the second soldering cycle is only carried out after the
capacitor temperature returns to a normal temperature following
the end of the first cycle.
Printed circuit board
Board thickness of 0.8 mm or more
Preheating
At 120 ℃ or less for 1 minute or less
(the preheating time and final temperature reached
around the land on the back of the board)
Capacitor body
There is a certain type of capacitor that must be lifted
upward from the printed board.
(processed product)
400
380
Soldering temperature (°C)
Dielectric material
Solder iron
360
340
320
300
Solder dipping
280
260
240
220
0
1
2
3
4
5
6
7
8
Soldering time (s)
■ Since the mounting heat-resistant temperature of the capacitor is low, avoid running the capacitor through an adhesive
curing oven for fixing chip components. In the oven, the capacitor is exposed to heat higher than the mounting
heat-resistant temperature, which causes the dielectric film to thermally shrink, thus causing a short failure.
■ When a film capacitor is used with chip components, mount the film capacitor and solder it after the adhesive has cured.
■ Do not perform reflow soldering for the capacitor. During reflow soldering, if heat higher than the mounting
heat-resistant temperature is applied to the capacitor, it could damage the exterior resin and impair the capacitor
characteristics.
30-Jun-23
Matters to Be Observed When Using This Product
■ When the capacitor is mounted on a multilayer board or has copper leads, the internal temperature of the capacitor
readily increases because of the high heat conductivity of the copper leads, and therefore the capacitor temperature
may rise above the mounting heat-resistant temperature. In such a case, contact us for some advice.
■ Excessive heat stress that is applied to the capacitor during
the mounting process causes the dielectric film to thermally
shrink, which may make the connection of the metal-sprayed
part unstable. Current flowing through the capacitor in this
state may reduce its capacitance and put it in open mode.
When the capacitor is laid down on its side on the board,
solder the capacitor so that a thermocouple inserted
between the capacitor and the board shows 125 ℃ or lower.
Thermocouple (ø 0.1)
Measurement point
Capacitor
Printed circuit board
Mounting conditions (temperature measurement)
■ When using a chip-type capacitor, measure the temperature profile of the mounted capacitor by the following method
so that the capacitor is soldered at a temperature equal to or lower than the heat-resistant temperature.
Bond a thermocouple (ø 0.1 T) to the upper surface of the capacitor with an adhesive.
As shown in the following diagram, connect the same type of thermocouple (3 m to 4 m) as the thermocouple
bonded to the capacitor, to the measuring device.
Mount the sample capacitor on the board, subject the capacitor to the soldering process, and measure the
temperature profile of the capacitor.
Adhesive
Measuring device
Thermocouple
Capacitor
3 m to 4 m
■ When using a lead-type capacitor with a low mounting heat-resistant temperature, measure the temperature profile
of the mounted capacitor by the following method so that the capacitor is soldered at a temperature equal to or lower
than the heat-resistant temperature.
Drill a hole of 0.3 mm to 0.8 mm in diameter on the top of the capacitor, the hole being deep enough to reach
the central part of the capacitor, and insert a thermocouple (ø 0.1 T) in the hole, affix the thermocouple with
an adhesive.
As shown in the following diagram, connect the same type of thermocouple (3 m to 4 m) as the thermocouple
bonded to the capacitor, to the measuring device.
Mount the sample capacitor on the board, subject the capacitor to the soldering process, and measure the
temperature profile of the capacitor.
Thermocouple
Capacitor
(thin wire)
ø 0.1
Measuring device
3 m to 4 m
Circuit board
30-Jun-23
Matters to Be Observed When Using This Product / Reference information
Storage conditions
■ Do not store the capacitor in a place where moisture, dust, or corrosive gas (hydrogen chloride, hydrogen sulfide, sulfur
dioxide, ammonia, etc.) is present. It may impair the solderability of the external electrodes.
■ Avoid a high-temperature/high-humidity place and keep the capacitor in a place where the temperature/humidity condition
is controlled at 35 ℃ and 85%RH or lower.
■ A capacitor kept in storage for a long period will have oxidized leads surface resulting in lower solderability.
Make the storage period as short as possible (about 6 months).
Storage conditions vary depending on capacitor types. For more detailed information, please contact us.
Reference information
Guidelines
Before using the capacitor, make sure to acquire our delivery specification sheet and confirm service conditions.
If you find measurement values exceeding specified values in the specification sheet or have any question, feel free to
contact us. We also advise you to refer to RCR-1001B "Safety Application Guide on Components for Use in Electronic
and Electrical Equipment" and JEITA RCR-2350D "Safety Application Guide for Fixed Plastic Film Capacitors for Use
in Electronic Equipment."
31-May-23
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