Surface Mount Aluminum Electrolytic Capacitors
EDH, +105°C
Overview
Applications
The KEMET EDH aluminum electrolytic surface mount
capacitors are designed for high density printed circuit
boards.
Typical applications include audio/visual (AV), computer/
monitor, communications, and switch mode power supplies
(SMPS).
Benefits
• Surface mount lead terminals
• Low profile vertical chip
• 105°C/2,000 hours
Part Number System
EDH
226
M
6R3
A
9B
AA
Series
Capacitance
Code (pF)
Tolerance
Rated Voltage
(VDC)
Electrical
Parameters
Size Code
Packaging
A = Standard
S = AEC–Q200
See Dimension
Table
AA = Tape &
Reel (Paper)
AP = Tape &
Reel (Plastic)
Surface Mount
Aluminum
Electrolytic
First two digits
represent
significant
figures for
capacitance
values. Last
digit specifies
the number
of zeros to be
added.
M = ±20%
6R3 = 6.3
010 = 10.0
016 = 16.0
025 = 25.0
035 = 35.0
050 = 50.0
063 = 63.0
100 = 100
160 = 160
200 = 200
250 = 250
400 = 400
450 = 450
*AP is only
available
for AEC-Q200
versions
Built Into Tomorrow
© KEMET Electronics Corporation • One East Broward Boulevard
Fort Lauderdale, FL 33301 USA • 954-766-2800 • www.kemet.com
A4049_EDH • 11/16/2023
1
Surface Mount Aluminum Electrolytic Capacitors – EDH, +105°C
Dimensions – Millimeters
C
D
P
G
B
L
W
A
F
E
Size Code
9B
9D
9G
9H
9M
9P
9R
9S
9T
Size Code
9B
9D
9G
9H
9M
9P
9R
9S
9T
D
L
A/B
E
C
E
Nominal
Tolerance
Nominal
Tolerance
Nominal
Tolerance
Nominal
Tolerance
Nominal
Tolerance
4.0
5.0
6.3
6.3
8.0
10.0
12.5
12.5
16
±0.5
±0.5
±0.5
±0.5
±0.5
±0.5
±0.5
±0.5
±0.5
5.4
5.4
5.4
7.7
10.2
10.2
13.5
16.0
16.5
+0.25/−0.1
+0.25/−0.1
+0.25/−0.1
±0.3
±0.3
±0.3
±0.5
±0.5
±0.5
4.3
5.3
6.6
6.6
8.3
10.3
12.8
12.8
17.0
±0.2
±0.2
±0.2
±0.2
±0.2
±0.2
±0.2
±0.2
±0.2
5.5
6.5
7.8
7.8
10.0
13.0
15.2
15.2
19.0
Maximum
Maximum
Maximum
Maximum
Maximum
Maximum
Maximum
Maximum
Maximum
1.8
2.2
2.6
2.6
3.4
3.5
4.9
4.9
6.3
±0.2
±0.2
±0.2
±0.2
±0.2
±0.2
±0.2
±0.2
±0.2
F
G
P
W
Nominal
Tolerance
Nominal
Tolerance
Nominal
Tolerance
Nominal
Tolerance
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
Maximum
Maximum
Maximum
Maximum
Maximum
Maximum
Maximum
Maximum
Maximum
0.35
0.35
0.35
0.35
0.70
0.70
1.0
1.0
0.70
+0.15/−0.2
+0.15/−0.2
+0.15/−0.2
+0.15/−0.2
±0.2
±0.2
±0.2
±0.2
±0.3
1.0
1.5
1.8
1.8
3.1
4.6
4.6
4.6
6.4
±0.2
±0.2
±0.2
±0.2
±0.2
±0.2
±0.2
±0.2
±0.2
0.65
0.65
0.65
0.65
0.90
0.90
1.25
1.25
1.20
±0.1
±0.1
±0.1
±0.1
±0.2
±0.2
±0.2
±0.2
±0.2
© KEMET Electronics Corporation • One East Broward Boulevard
Fort Lauderdale, FL 33301 USA • 954-766-2800 • www.kemet.com
A4049_EDH • 11/16/2023
2
Surface Mount Aluminum Electrolytic Capacitors – EDH, +105°C
Environmental Compliance
As an environmentally conscious company, KEMET is working continuously with improvements concerning the environmental
effects of both our capacitors and their production. In Europe (RoHS Directive) and in some other geographical areas like
China, legislation has been put in place to prevent the use of some hazardous materials, such as lead (Pb), in electronic
equipment. All products in this catalog are produced to help our customers’ obligations to guarantee their products and fulfill
these legislative requirements. The only material of concern in our products has been lead (Pb), which has been removed
from all designs to fulfill the requirement of containing less than 0.1% of lead in any homogeneous material. KEMET will
closely follow any changes in legislation world wide and make any necessary changes in its products, whenever needed.
Some customer segments such as medical, military and automotive electronics may still require the use of lead in electrode
coatings. To clarify the situation and distinguish products from each other, a special symbol is used on the packaging labels
for RoHS compatible capacitors.
Due to customer requirements, there may appear additional markings such as lead free (LF) or lead-free wires (LFW) on the
label.
Performance Characteristics
Item
Performance Characteristics
1 – 2,200 µF
Capacitance Range
±20% at 120 Hz/20°C
Capacitance Tolerance
6.3 – 100 VDC
Rated Voltage
160 – 450 VDC
2,000 hours (see conditions in Test Method & Performance)
Life Test
−40°C to +105°C
−25°C to +105°C
I ≤ 0.01 CV or 3 µA, whichever is greater
I = 0.04 CV + 100 µA
Operating Temperature
Leakage Current
C = rated capacitance (µF), V = rated voltage (VDC). Voltage applied for 2 minutes at 20°C.
Automotive version: Part number position 11 = "S"
Vibration Test Specifications
5G maximum acceleration. Vibration applied in 3 directions
(X, Y, and Z axis). 4-hour sessions at 10 – 2,000 Hz
(Capacitor clamped by the body)
Impedance Z Characteristics at 120 Hz
Rated Voltage (VDC)
6
10
16
25
35 – 100
160 – 450
Z (-25°C)/Z (20°C)
4
3
2
2
2
4
Z (-40°C)/Z (20°C)
8
6
4
4
3
-
© KEMET Electronics Corporation • One East Broward Boulevard
Fort Lauderdale, FL 33301 USA • 954-766-2800 • www.kemet.com
A4049_EDH • 11/16/2023
3
Surface Mount Aluminum Electrolytic Capacitors – EDH, +105°C
Compensation Factor of Ripple Current (RC) vs. Frequency
Frequency
Coefficient
60 Hz
120 Hz
1 kHz
10 kHz
0.85
1.00
1.15
1.25
Test Method & Performance
Conditions
Load Life Test
Shelf Life Test
Temperature
105°C
105°C
Test Duration
2,000 hours
1,000 hours
Ripple Current
Maximum ripple current specified at 120 Hz 105°C
No ripple current applied
Voltage
The sum of DC voltage and the peak AC voltage
must not exceed the rated voltage of the capacitor
No voltage applied
Performance
Capacitance Change
Dissipation Factor
Leakage Current
The following specifications will be satisfied when the capacitor is restored to 20°C:
Can Ø = 4 – 6.3 mm within ±25% of the initial value
Can Ø = 8 – 16 mm within ±20% of the initial value
Does not exceed 200% of the specified value
Does not exceed specified value
Shelf Life
The capacitance, ESR and impedance of a capacitor will not change significantly after extended storage periods, however,
the leakage current will very slowly increase.
KEMET's E aluminum electrolytic capacitors should not be stored in high temperatures or where there is a high level of
humidity. The suitable storage condition for KEMET's E aluminum electrolytic capacitors is +5 to +35°C and less than 75%
in relative humidity. KEMET's E aluminum electrolytic capacitors should not be stored in damp conditions such as water,
saltwater spray or oil spray. KEMET's E aluminum electrolytic capacitors should not be stored in an environment full of
hazardous gas (hydrogen sulphide, sulphurous acid gas, nitrous acid, chlorine gas, ammonium, etc.) KEMET's E aluminum
electrolytic capacitors should not be stored under exposure to ozone, ultraviolet rays or radiation.
If a capacitor has been stored for more than 18 months under these conditions and it shows increased leakage current,
then a treatment by voltage application is recommended.
Re-Age (Reforming) Procedure
Apply the rated voltage to the capacitor at room temperature for a period of one hour, or until the leakage current has fallen
to a steady value below the specified limit. During re-aging a maximum charging current of twice the specified leakage
current or 5 mA, whichever is greater, is suggested.
© KEMET Electronics Corporation • One East Broward Boulevard
Fort Lauderdale, FL 33301 USA • 954-766-2800 • www.kemet.com
A4049_EDH • 11/16/2023
4
Surface Mount Aluminum Electrolytic Capacitors – EDH, +105°C
Table 1 – Ratings & Part Number Reference
VDC
VDC Surge
Voltage
Rated
Capacitance
120 Hz 20°C
(µF)
Case Size
D x L (mm)
DF
120 Hz
20°C
(tan δ %)
RC
120 Hz
105°C
(mA)
LC
20°C 2
minutes
(µA)
Part Number
6.3
6.3
6.3
6.3
6.3
6.3
6.3
6.3
6.3
6.3
6.3
6.3
6.3
6.3
10
10
10
10
10
10
10
10
10
10
10
10
10
16
16
16
16
16
16
16
16
16
16
16
16
16
16
16
25
25
25
25
25
25
25
25
25
25
25
25
25
25
25
25
25
8
8
8
8
8
8
8
8
8
8
8
8
8
8
13
13
13
13
13
13
13
13
13
13
13
13
13
20
20
20
20
20
20
20
20
20
20
20
20
20
20
20
32
32
32
32
32
32
32
32
32
32
32
32
32
32
32
32
32
22
33
47
47
100
220
220
330
330
470
470
1000
1500
2200
22
33
47
47
100
100
220
220
330
470
470
1000
2200
10
22
22
33
47
47
100
100
220
220
330
470
470
1000
2200
4.7
6.8
10
10
22
22
33
47
47
100
100
220
220
330
470
1000
1500
4 x 5.4
4 x 5.4
4 x 5.4
5 x 5.4
6.3 x 5.4
6.3 x 5.4
6.3 x 7.7
6.3 x 7.7
8 x 10.2
10 x 10.2
8 x 10.2
10 x 10.2
10 x 10.2
12.5 x 13
4 x 5.4
5 x 5.4
5 x 5.4
6.3 x 5.4
6.3 x 5.4
6.3 x 7.7
6.3 x 7.7
8 x 10.2
8 x 10.2
10 x 10.2
8 x 10.2
10 x 10.2
12.5 x 13
4 x 5.4
4 x 5.4
5 x 5.4
5 x 5.4
5 x 5.4
6.3 x 5.4
6.3 x 5.4
6.3 x 7.7
10 x 10.2
8 x 10.2
10 x 10.2
10 x 10.2
8 x 10.2
12.5 x 13
16 x 16.5
4 x 5.4
4 x 5.4
4 x 5.4
5 x 5.4
5 x 5.4
6.3 x 5.4
6.3 x 5.4
6.3 x 5.4
6.3 x 7.7
6.3 x 7.7
8 x 10.2
10 x 10.2
8 x 10.2
10 x 10.2
10 x 10.2
12.5 x 13
12.5 x 16
30
30
30
30
30
35
35
35
35
35
35
35
35
35
22
22
22
22
30
30
30
26
30
26
30
26
30
16
16
16
16
16
16
20
20
20
20
20
20
20
34
34
14
14
14
14
14
14
14
16
16
16
16
16
16
16
16
26
26
26
29
31
46
71
80
120
140
290
380
290
410
460
680
23
45
60
70
71
110
120
260
290
380
320
410
680
28
29
39
40
42
70
71
130
210
150
230
380
240
550
900
22
25
25
28
28
55
65
65
91
100
230
310
270
340
380
510
590
3.0
3.0
3.0
3.0
6.3
13.9
13.9
20.8
20.8
29.6
29.6
63.0
94.5
138.6
3.0
3.3
4.7
4.7
10.0
10.0
22.0
22.0
33.0
47.0
47.0
100.0
220.0
3.0
3.5
3.5
5.3
7.5
7.5
16.0
16.0
35.2
35.2
52.8
75.2
75.2
160.0
352.0
3.0
3.0
3.0
3.0
5.5
5.5
8.3
11.8
11.8
25.0
25.0
55.0
55.0
82.5
117.5
250.0
375.0
EDH226M6R3(1)9BAA
EDH336M6R3(1)9BAA
EDH476M6R3(1)9BAA
EDH476M6R3(1)9DAA
EDH107M6R3(1)9GAA
EDH227M6R3(1)9GAA
EDH227M6R3(1)9HAA
EDH337M6R3(1)9HAA
EDH337M6R3(1)9MAA
EDH477M6R3(1)9PAA
EDH477M6R3(1)9MAA
EDH108M6R3(1)9PAA
EDH158M6R3(1)9PAA
EDH228M6R3(1)9RAA
EDH226M010(1)9BAA
EDH336M010(1)9DAA
EDH476M010(1)9DAA
EDH476M010(1)9GAA
EDH107M010(1)9GAA
EDH107M010(1)9HAA
EDH227M010(1)9HAA
EDH227M010(1)9MAA
EDH337M010(1)9MAA
EDH477M010(1)9PAA
EDH477M010(1)9MAA
EDH108M010(1)9PAA
EDH228M010(1)9RAA
EDH106M016(1)9BAA
EDH226M016(1)9BAA
EDH226M016(1)9DAA
EDH336M016(1)9DAA
EDH476M016(1)9DAA
EDH476M016(1)9GAA
EDH107M016(1)9GAA
EDH107M016(1)9HAA
EDH227M016(1)9PAA
EDH227M016(1)9MAA
EDH337M016(1)9PAA
EDH477M016(1)9PAA
EDH477M016(1)9MAA
EDH108M016(1)9RAA
EDH228M016(1)9TAA
EDH475M025(1)9BAA
EDH685M025(1)9BAA
EDH106M025(1)9BAA
EDH106M025(1)9DAA
EDH226M025(1)9DAA
EDH226M025(1)9GAA
EDH336M025(1)9GAA
EDH476M025(1)9GAA
EDH476M025(1)9HAA
EDH107M025(1)9HAA
EDH107M025(1)9MAA
EDH227M025(1)9PAA
EDH227M025(1)9MAA
EDH337M025(1)9PAA
EDH477M025(1)9PAA
EDH108M025(1)9RAA
EDH158M025(1)9SAA
VDC
VDC Surge
Rated Capacitance
Case Size
DF
RC
LC
Part Number
(1) Insert Electrical Parameters code. See Part Number System for available options.
© KEMET Electronics Corporation • One East Broward Boulevard
Fort Lauderdale, FL 33301 USA • 954-766-2800 • www.kemet.com
A4049_EDH • 11/16/2023
5
Surface Mount Aluminum Electrolytic Capacitors – EDH, +105°C
Table 1 – Ratings & Part Number Reference cont.
VDC
VDC Surge
Voltage
Rated
Capacitance
120 Hz 20°C
(µF)
Case Size
D x L (mm)
DF
120 Hz
20°C
(tan δ %)
RC
120 Hz
105°C
(mA)
LC
20°C 2
minutes
(µA)
Part Number
25
35
35
35
35
35
35
35
35
35
35
35
35
35
35
35
35
50
50
50
50
50
50
50
50
50
50
50
50
50
50
50
50
50
50
63
63
63
63
63
63
63
63
100
100
100
100
100
100
160
160
160
200
200
200
200
250
250
250
32
44
44
44
44
44
44
44
44
44
44
44
44
44
44
44
44
63
63
63
63
63
63
63
63
63
63
63
63
63
63
63
63
63
63
79
79
79
79
79
79
79
79
125
125
125
125
125
125
200
200
200
250
250
250
250
300
300
300
2200
4.7
6.8
10
22
33
47
47
100
100
220
220
330
470
680
1000
1500
1
2.2
3.3
4.7
6.8
10
10
22
22
33
47
47
100
100
220
330
470
1000
33
47
100
150
220
220
330
470
22
33
33
47
47
100
33
47
100
10
22
33
47
3.3
4.7
10
16 x 16.5
4 x 5.4
4 x 5.4
5 x 5.4
6.3 x 5.4
6.3 x 7.7
6.3 x 7.7
8 x 10.2
10 x 10.2
8 x 10.2
10 x 10.2
8 x 10.2
10 x 10.2
12.5 x 13
12.5 x 13
16 x 16.5
16 x 16.5
4 x 5.4
4 x 5.4
4 x 5.4
5 x 5.4
5 x 5.4
5 x 5.4
6.3 x 5.4
6.3 x 5.4
6.3 x 7.7
6.3 x 7.7
6.3 x 7.7
8 x 10.2
10 x 10.2
8 x 10.2
10 x 10.2
12.5 x 13
12.5 x 16
16 x 16.5
8 x 10.2
8 x 10.2
10 x 10.2
10 x 10.2
12.5 x 13
12.5 x 16
16 x 16.5
16 x 16.5
8 x 10.2
10 x 10.2
8 x 10.2
10 x 10.2
12.5 x 13
12.5 x 13
12.5 x 13
16 x 16.5
16 x 16.5
12.5 x 13
12.5 x 16
12.5 x 16
16 x 16.5
12.5 x 13
12.5 x 13
12.5 x 13
26
12
12
12
14
14
14
14
14
14
14
14
14
22
22
22
22
12
12
12
12
12
12
12
12
12
12
12
12
12
12
12
16
18
18
18
18
18
18
14
14
14
14
18
18
18
18
18
18
20
20
20
20
20
20
20
20
20
20
900
22
25
30
60
80
100
210
310
240
350
260
370
520
590
800
1000
10
16
16
23
30
35
40
42
65
91
110
210
320
240
330
490
550
800
140
170
340
360
470
550
650
700
100
150
120
170
250
300
95
240
250
80
110
120
220
60
65
70
550.0
3.0
3.0
3.5
7.7
11.6
16.5
16.5
35.0
35.0
77.0
77.0
115.5
164.5
238.0
350.0
525.0
3.0
3.0
3.0
3.0
3.4
5.0
5.0
11.0
11.0
16.5
23.5
23.5
50.0
50.0
110.0
165.0
235.0
500.0
20.8
29.6
63.0
94.5
138.6
138.6
207.9
296.1
22.0
33.0
33.0
47.0
47.0
100.0
311.2
400.8
740.0
180.0
276.0
364.0
476.0
133.0
147.0
200.0
EDH228M025(1)9TAA
EDH475M035(1)9BAA
EDH685M035(1)9BAA
EDH106M035(1)9DAA
EDH226M035(1)9GAA
EDH336M035(1)9HAA
EDH476M035(1)9HAA
EDH476M035(1)9MAA
EDH107M035(1)9PAA
EDH107M035(1)9MAA
EDH227M035(1)9PAA
EDH227M035(1)9MAA
EDH337M035(1)9PAA
EDH477M035(1)9RAA
EDH687M035(1)9RAA
EDH108M035(1)9TAA
EDH158M035(1)9TAA
EDH105M050A9BAA
EDH225M050A9BAA
EDH335M050A9BAA
EDH475M050(1)9DAA
EDH685M050(1)9DAA
EDH106M050(1)9DAA
EDH106M050(1)9GAA
EDH226M050(1)9GAA
EDH226M050(1)9HAA
EDH336M050(1)9HAA
EDH476M050(1)9HAA
EDH476M050(1)9MAA
EDH107M050(1)9PAA
EDH107M050(1)9MAA
EDH227M050(1)9PAA
EDH337M050(1)9RAA
EDH477M050(1)9SAA
EDH108M050(1)9TAA
EDH336M063(1)9MAA
EDH476M063(1)9MAA
EDH107M063(1)9PAA
EDH157M063(1)9PAA
EDH227M063(1)9RAA
EDH227M063(1)9SAA
EDH337M063(1)9TAA
EDH477M063(1)9TAA
EDH226M100(1)9MAA
EDH336M100(1)9PAA
EDH336M100(1)9MAA
EDH476M100(1)9PAA
EDH476M100(1)9RAA
EDH107M100(1)9RAA
EDH336M160(1)9RAA
EDH476M160(1)9TAA
EDH107M160(1)9TAA
EDH106M200(1)9RAA
EDH226M200(1)9SAA
EDH336M200(1)9SAA
EDH476M200(1)9TAA
EDH335M250A9RAA
EDH475M250(1)9RAA
EDH106M250(1)9RAA
VDC
VDC Surge
Rated Capacitance
Case Size
DF
RC
LC
Part Number
(1) Insert Electrical Parameters code. See Part Number System for available options.
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A4049_EDH • 11/16/2023
6
Surface Mount Aluminum Electrolytic Capacitors – EDH, +105°C
Table 1 – Ratings & Part Number Reference cont.
VDC
VDC Surge
Voltage
Rated
Capacitance
120 Hz 20°C
(µF)
Case Size
D x L (mm)
DF
120 Hz
20°C
(tan δ %)
RC
120 Hz
105°C
(mA)
LC
20°C 2
minutes
(µA)
Part Number
250
250
250
400
400
400
400
400
450
450
450
450
300
300
300
450
450
450
450
450
500
500
500
500
22
33
47
3.3
4.7
10
22
33
3.3
4.7
10
22
12.5 x 13
16 x 16.5
16 x 16.5
12.5 x 13
12.5 x 13
12.5 x 13
16 x 16.5
16 x 16.5
12.5 x 13
12.5 x 13
12.5 x 16
16 x 16.5
20
20
20
25
25
25
25
25
25
25
25
25
105
180
220
40
45
50
85
85
40
45
75
85
320.0
430.0
570.0
152.8
175.2
260.0
452.0
628.0
159.4
184.6
280.0
496.0
EDH226M250(1)9RAA
EDH336M250(1)9TAA
EDH476M250(1)9TAA
EDH335M400A9RAA
EDH475M400(1)9RAA
EDH106M400(1)9RAA
EDH226M400(1)9TAA
EDH336M400(1)9TAA
EDH335M450A9RAA
EDH475M450(1)9RAA
EDH106M450(1)9SAA
EDH226M450(1)9TAA
VDC
VDC Surge
Rated Capacitance
Case Size
DF
RC
LC
Part Number
(1) Insert Electrical Parameters code. See Part Number System for available options.
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A4049_EDH • 11/16/2023
7
Surface Mount Aluminum Electrolytic Capacitors – EDH, +105°C
Mounting Positions (Safety Vent)
In operation, electrolytic capacitors will always conduct a leakage current, which causes electrolysis. The oxygen produced
by electrolysis will regenerate the dielectric layer but, at the same time, the hydrogen released may cause the internal
pressure of the capacitor to increase. The overpressure vent, or safety vent, ensures that the gas can escape when the
pressure reaches a certain value. All mounting positions must allow the safety vent to work properly.
Installing
• As a general principle, lower-use temperatures result in a longer, useful life of the capacitor. For this reason, it should be
ensured that electrolytic capacitors are placed away from heat-emitting components. Adequate space should be allowed
between components for cooling air to circulate, particularly when high ripple current loads are applied. In any case, the
maximum category temperature must not be exceeded.
• Do not deform the case of the capacitors or use capacitors with a deformed case.
• Verify that the connections of the capacitors are able to insert on the board without excessive mechanical force.
• If the capacitors require mounting through additional means, the recommended mounting accessories shall be used.
• Verify the correct polarization of the capacitor on the board.
• Verify that the space around the pressure relief device is according to the following guideline:
Case Diameter
Space Around Safety Vent
≤ 16 mm
> 2 mm
> 16 to ≤ 40 mm
> 3 mm
> 40 mm
> 5 mm
It is recommended that capacitors always be mounted with the safety device uppermost or in the upper part of the capacitor.
• If the capacitors are stored for a long time, the leakage current must be verifi ed. If the leakage current is superior to the
value listed in this catalog, the capacitors must be reformed. In this case, they can be reformed by application of the rated
voltage through a series resistor approximately 1 kΩ for capacitors with VR ≤ 160 V (5 W resistor) and 10 kΩ for the other
rated voltages.
• In the case of capacitors connected in a series, a suitable voltage sharing must be used.
In the case of balancing resistors, the approximate resistance value can be calculated as: R = 60/C.
KEMET recommends, nevertheless, to ensure that the voltage across each capacitor does not exceed its rated voltage.
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A4049_EDH • 11/16/2023
8
Surface Mount Aluminum Electrolytic Capacitors – EDH, +105°C
Application & Operation Guidelines
Electrical Ratings:
Capacitance (ESC)
Simplified equivalent circuit diagram of an electrolytic capacitor
The capacitive component of the equivalent series circuit, (equivalent series capacitance - ESC), is determined by applying
an alternate voltage of ≤ 0.5 V at a frequency of 120 or 100 Hz and 20°C (IEC 384-1, 384-4).
Temperature Dependence of the Capacitance
Capacitance of an electrolytic capacitor depends upon temperature: with decreasing temperature the viscosity of the
electrolyte increases, thereby reducing its conductivity.
Capacitance will decrease if temperature decreases. Furthermore, temperature drifts cause armature dilatation and,
therefore, capacitance changes (up to 20% depending on the series considered, from 0 to 80°C). This phenomenon is more
evident for electrolytic capacitors than for other types.
Frequency Dependence of the Capacitance
Effective capacitance value is derived from the impedance curve, as long as impedance is still in the range where the
capacitance component is dominant.
C=
1
2π fZ
C = capacitance (F)
f = frequency (Hz)
Z = impedance (Ω)
Dissipation Factor tan δ (DF)
Dissipation Factor tan δ is the ratio between the active and reactive power for a sinusoidal waveform voltage. It can be
thought of as a measurement of the gap between an actual and ideal capacitor.
reactive
ideal
δ
actual
active
Tan δ is measured with the same set-up used for the series capacitance ESC.
Tan δ = ω x ESC x ESR where:
ESC = Equivalent series capacitance
ESR = Equivalent series resistance
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A4049_EDH • 11/16/2023
9
Surface Mount Aluminum Electrolytic Capacitors – EDH, +105°C
Application & Operation Guidelines cont.
Equivalent Series Inductance (ESL)
Equivalent series inductance or self inductance results from the terminal confi guration and internal design of the capacitor.
Capacitor Equivalent Internal Circuit
Equivalent
Series
Capacitance
(ESC)
Equivalent
Series
Resistance
(ESR)
Equivalent
Series
Inductance
(ESL)
Co
Re
L
Equivalent Series Resistance (ESR)
Equivalent series resistance is the resistive component of the equivalent series circuit. ESR value depends on frequency and
temperature, and is related to the tan δ by the following equation:
Ce
tan δ
ESR =
2πf ESC
ESR = Equivalent series resistance (Ω)
tan δ = Dissipation factor
ESC = Equivalent series capacitance (F)
f = Frequency (Hz)
Tolerance limits of the rated capacitance must be taken into account when calculating this value.
Impedance (Z)
Impedance of an electrolytic capacitor results from a circuit formed by the following individual equivalent series
components:
Co
Re
L
Ce
Co = Aluminum oxide capacitance (surface and thickness of the dielectric.)
Re = Resistance of electrolyte and paper mixture (other resistances not depending on the frequency are not considered: tabs,
plates, etc.)
Ce = Electrolyte soaked paper capacitance.
L = Inductive reactance of the capacitor winding and terminals.
Impedance of an electrolytic capacitor is not a constant quantity that retains its value under all conditions; it changes
depending on frequency and temperature.
Impedance as a function of frequency (sinusoidal waveform) for a certain temperature can be represented as follows:
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A4049_EDH • 11/16/2023
10
Surface Mount Aluminum Electrolytic Capacitors – EDH, +105°C
Application & Operation Guidelines cont.
Impedance (Z) cont.
Z [ohm ]
1,000
100
1/ω
ω Ce
10
B
Re
1
0.1
ωL
A
1/ω
ω Co
0.1
1
10
C
100
1,000
10,000
F [K Hz]
• Capacitive reactance predominates at low frequencies.
• With increasing frequency, capacitive reactance Xc = 1/ωCo decreases until it reaches the order of magnitude of
electrolyte resistance Re(A)
• At even higher frequencies, resistance of the electrolyte predominates: Z = Re (A - B)
• When the capacitor’s resonance frequency is reached (ω0), capacitive and inductive reactance mutually cancel each other
1/ωCe = ωL, ω0 = 1/SQR(LCe)
• Above this frequency, inductive reactance of the winding and its terminals (XL = Z = ωL) becomes effective and leads to
an increase in impedance
Generally speaking, it can be estimated that Ce ≈ 0.01 Co.
Impedance as a function of frequency (sinusoidal waveform) for different temperature values can be represented as follows
(typical values):
Z (ohm)
10 µF
1,000
100
-40°C
10
20°C
85°C
1
0.1
0.1
1
10
100
1,000
10,000
F (K H z)
Re is the most temperature-dependent component of an electrolytic capacitor equivalent circuit. Electrolyte resistivity will
decrease if temperature rises.
In order to obtain a low impedance value throughout the temperature range, Re must be as little as possible. However, Re
values that are too low indicate a very aggressive electrolyte, resulting in a shorter life of the electrolytic capacitor at high
temperatures. A compromise must be reached.
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A4049_EDH • 11/16/2023
11
Surface Mount Aluminum Electrolytic Capacitors – EDH, +105°C
Application & Operation Guidelines cont.
Leakage Current (LC)
Due to the aluminum oxide layer that serves as a dielectric, a small current will continue to fl ow even after a DC voltage has
been applied for long periods. This current is called leakage current.
A high leakage current fl ows after applying voltage to the capacitor then decreases in a few minutes, for example, after
prolonged storage without any applied voltage. In the course of continuous operation, the leakage current will decrease and
reach an almost constant value.
After a voltage-free storage the oxide layer may deteriorate, especially at a high temperature. Since there are no leakage
currents to transport oxygen ions to the anode, the oxide layer is not regenerated. The result is that a higher than normal
leakage current will fl ow when voltage is applied after prolonged storage.
As the oxide layer is regenerated in use, the leakage current will gradually decrease to its normal level.
The relationship between the leakage current and voltage applied at constant temperature can be shown schematically as
follows:
I
VR
VS
VF
V
Where:
VF = Forming voltage
If this level is exceeded, a large quantity of heat and gas will be generated and the capacitor could be damaged.
VR = Rated voltage
This level represents the top of the linear part of the curve.
VS = Surge voltage
This lies between VR and VF. The capacitor can be subjected to VS for short periods only.
Electrolytic capacitors are subjected to a reforming process before acceptance testing. The purpose of this preconditioning
is to ensure that the same initial conditions are maintained when comparing different products.
Ripple Current (RC)
The maximum ripple current value depends on:
• Ambient temperature
• Surface area of the capacitor (heat dissipation area)
tan δ or ESR
• Frequency
The capacitor’s life depends on the thermal stress.
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A4049_EDH • 11/16/2023
12
Surface Mount Aluminum Electrolytic Capacitors – EDH, +105°C
Application & Operation Guidelines cont.
Frequency Dependence of the Ripple Current
ESR and, thus, the tan δ depend on the frequency of the applied voltage. This indicates that the allowed ripple current is also
a function of the frequency.
Temperature Dependence of the Ripple Current
The data sheet specifi es maximum ripple current at the upper category temperature for each capacitor.
Expected Life Calculation
Expected life depends on operating temperature according to the following formula: L = Lo x 2(To-T)/10
Where:
L:
Expected life
Lo:
Load life at a maximum permissible operating
temperature
T:
Actual operating temperature
To:
Maximum permissible operating temperature
This formula is applicable between 40°C and To.
Actual Operating Temperature (C°)
Expected Life Calculation Chart
Expected life (h)
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A4049_EDH • 11/16/2023
13
Surface Mount Aluminum Electrolytic Capacitors – EDH, +105°C
Standard Marking for Surface Mount Types
Negative Polarity
Black Row
Capacitance (µF)
Rated Voltage (VDC)
Series Identification*
Date Code (YMI)
* First letter represents the series
Second letter - Blank or “A” = Standard Part
“S” = Automotive version
Note: 6.3 V rated voltage shall be marked as 6 V, but 6.3 V shall be assured.
Batch Code Explanation
Y = Year
Code
6
7
8
9
0
1
2
3
4
5
Year
2016
2017
2018
2019
2020
2021
2022
2023
2024
2025
M = Month
Code
1
2
3
4
5
6
7
8
9
A
B
C
Month
1
2
3
4
5
6
7
8
9
10
11
12
I = Internal code
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A4049_EDH • 11/16/2023
14
Surface Mount Aluminum Electrolytic Capacitors – EDH, +105°C
Construction
Aluminum Can
Lead
Terminal Tabs
Detailed Cross Section
Rubber Seal
Terminal Tab
Rubber Seal
Margin
Aluminum Can
Paper Spacer Impregnated
with Electrolyte
(First Layer)
Anode Aluminum Foil,
Etched, Covered with
Aluminum Oxide
(Second Layer)
Paper Spacer Impregnated with Electrolyte
(Third Layer)
Cathode Aluminum Foil, Etched
(Fourth Layer)
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Lead (+)
Lead (−)
A4049_EDH • 11/16/2023
15
Surface Mount Aluminum Electrolytic Capacitors – EDH, +105°C
Soldering Process
The soldering conditions should be within the specified conditions below:
Do not dip the capacitor body into the melted solder. Flux should only be applied to the capacitor terminals.
Temperature of capacitor terminal (°C)
T3
T2
T3
Pre-heat
T1
T0
Time (seconds)
Vapor heat transfer systems are not recommended. The system should be thermal, such as infra-red radiation or hot blast
Observe the soldering conditions as shown below.
Do not exceed these limits and avoid repeated reflowing
Reflow Soldering
T0
Pre-heat
T1
T2
T3
Lead-Free Reflow Soldering cont.
Temperature (°C)
Maximum Time
(Seconds)
20 – 140
140 – 180
180 – 140
> 200
230
60
150
100
60
20
T3
T0
Pre-heat
T1
T2
Maximum Time
(Seconds)
20 – 160
160 – 190
190 – 180
> 220
60
120
90
60
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Maximum Time
(Seconds)
250
260
250
250
10
5
5
5
Size
Temperature
(°C)
Maximum Time
(Seconds)
Φ4 ~ Φ5
(4 – 50 V)
250
260
10
5
Φ6.3 ~ Φ10
(4 – 50 V)
250
5
Φ4 ~ Φ10
(63 – 100 V)
250
5
≥ Φ12.5
250
5
Φ4 ~ Φ5 (4 – 50 V)
Φ6.3 ~ Φ10 (4 – 50 V)
Φ4 ~ Φ10 (63 – 100 V)
Lead-Free Reflow Soldering
Temperature (°C)
Temperature
(°C)
Size
T3
A4049_EDH • 11/16/2023
16
Surface Mount Aluminum Electrolytic Capacitors – EDH, +105°C
Lead Taping & Packaging
Case Size (mm)
4 x 5.4
5 x 5.4
6.3 x 5.4
6.3 x 7.7
8 x 6.2
8 x 10.2
10 x 10.2
12.5 x 13.5
12.5 x 16
16 x 16.5
D
Reel
H
W
±0.2
±0.8
±1.0
21
21
21
21
21
21
21
23
23
14
14
18
18
18
26
26
34
34
23
46
380
D
H
W
Taping for Automatic Insertion Machines
Feeding hole
Chip pocket
ØD0
P0
P2
E
t1
B
W
F
A
t2
P1
Tape running direction
Chip component
Dimensions (mm)
W
A
B
P0
P1
P2
F
D0
E
t1
t2
Tolerance
Nominal
Nominal
Nominal
±0.1
±0.1
±0.1
Nominal
±0.1
Nominal
Nominal
Nominal
4 x 5.4
5 x 5.4
6.3 x 5.4
6.3 x 7.7
8 x 6.2
8 x 10.2
10 x 10.2
12.5 x 13.5
12.5 x 16
16 x 16.5
12
12
16
16
16
24
24
32
32
44
4.7
5.7
7.0
7.0
8.7
8.7
10.7
13.4
13.4
17.5
4.7
5.7
7.0
7.0
8.7
8.7
10.7
13.4
13.4
17.5
4
4
4
4
4
4
4
4
4
4
8
12
12
12
12
16
16
24
24
28
2
2
2
2
2
2
2
2
2
2
5.5
5.5
7.5
7.5
7.5
11.5
11.5
14.2
14.2
20.2
1.5
1.5
1.5
1.5
1.5
1.5
1.5
1.5
1.5
1.5
1.75
1.75
1.75
1.75
1.75
1.75
1.75
1.75
1.75
1.75
0.4
0.4
0.4
0.4
0.4
0.4
0.4
0.5
0.5
0.5
5.8
5.8
5.8
5.8
6.8
11.0
11.0
14.0
17.5
17.5
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A4049_EDH • 11/16/2023
17
Surface Mount Aluminum Electrolytic Capacitors – EDH, +105°C
Construction Data
The manufacturing process begins with the anode foil being
electrochemically etched to increase the surface area and then
“formed” to produce the aluminum oxide layer. Both the anode and
cathode foils are then interleaved with absorbent paper and wound
into a cylinder. During the winding process, aluminum tabs are
attached to each foil to provide the electrical contact.
The deck, complete with terminals, is attached to the tabs and then
folded down to rest on top of the winding. The complete winding
is impregnated with electrolyte before being housed in a suitable
container, usually an aluminum can, and sealed. Throughout the
process, all materials inside the housing must be maintained at the
highest purity and be compatible with the electrolyte.
Each capacitor is aged and tested before being sleeved and packed.
The purpose of aging is to repair any damage in the oxide layer
and thus reduce the leakage current to a very low level. Aging is
normally carried out at the rated temperature of the capacitor and
is accomplished by applying voltage to the device while carefully
controlling the supply current. The process may take several hours to
complete.
Damage to the oxide layer can occur due to variety of reasons:
• Slitting of the anode foil after forming
• Attaching the tabs to the anode foil
• Minor mechanical damage caused during winding
A sample from each batch is taken by the quality department after
completion of the production process. This sample size is controlled
by the use of recognized sampling tables defi ned in BS 6001.
The following tests are applied and may be varied at the request
of the customer. In this case the batch, or special procedure, will
determine the course of action.
Electrical:
• Leakage current
• Capacitance
• ESR
• Impedance
• Tan Delta
Mechanical/Visual:
• Overall dimensions
• Torque test of mounting stud
• Print detail
• Box labels
• Packaging, including packed
quantity
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Extended cathode
Anode foil
Foil tabs
Tissues
Cathode foil
Etching
Forming
Winding
Decking
Impregnation
Assembly
Aging
Testing
Sleeving
Packing
A4049_EDH • 11/16/2023
18
Surface Mount Aluminum Electrolytic Capacitors – EDH, +105°C
KEMET Electronics Corporation Sales Offices
For a complete list of our global sales offi ces, please visit www.kemet.com/sales.
Disclaimer
YAGEO Corporation and its affi liates do not recommend the use of commercial or automotive grade products for high reliability applications or manned space fl ight.
All product specifi cations, statements, information and data (collectively, the “Information”) in this datasheet are subject to change. The customer is responsible for
checking and verifying the extent to which the Information contained in this publication is applicable to an order at the time the order is placed. All Information given
herein is believed to be accurate and reliable, but it is presented without guarantee, warranty, or responsibility of any kind, expressed or implied.
Statements of suitability for certain applications are based on KEMET Electronics Corporation’s (“KEMET”) knowledge of typical operating conditions for such
applications, but are not intended to constitute – and KEMET specifi cally disclaims – any warranty concerning suitability for a specifi c customer application or use.
The Information is intended for use only by customers who have the requisite experience and capability to determine the correct products for their application. Any
technical advice inferred from this Information or otherwise provided by KEMET with reference to the use of KEMET’s products is given gratis, and KEMET assumes
no obligation or liability for the advice given or results obtained.
Although KEMET designs and manufactures its products to the most stringent quality and safety standards, given the current state of the art, isolated component
failures may still occur. Accordingly, customer applications which require a high degree of reliability or safety should employ suitable designs or other safeguards
(such as installation of protective circuitry or redundancies) in order to ensure that the failure of an electrical component does not result in a risk of personal injury
or property damage.
Although all product–related warnings, cautions and notes must be observed, the customer should not assume that all safety measures are indicated or that other
measures may not be required.
KEMET requires its products to be packaged and shipped on pallets. This is because KEMET’s products are specifi cally designed to be packed onto pallets during
shipment. If for any reason, the products are removed from pallets by the shipping party and shipped to the end customer, then additional external protection is
required. In this instance, an external box with two carton layers and an upwards orientation sticker must be used by the shipping party, with the empty space fi lled
with fi lling material, and afterwards sealing the box. If this packing and packaging guideline is not followed by the shipping party, the shipping party, and not KEMET,
will be held responsible for any packaging, packing and/or product damages upon delivery of the products to the end customer. KEMET hereby disclaims any liability
for damages to the products or otherwise that have been, or threaten to be, infl icted, result from or are in any way related to the packaging, packing or damage by the
shipping party in contravention of the packing and packaging guidelines herein.
KEMET is a registered trademark of KEMET Electronics Corporation.
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A4049_EDH • 11/16/2023
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