Thick Film Chip Resistors
(Low Resistance Type)
ERJ type
ERJ 2LW, 3LW, 6LW series
ERJ 2BW, 3BW, 6BW, 8BW, 6CW, 8CW series
ERJ 2BS/Q, 3BS/Q, 6DS/Q, 6BS/Q, 8BS/Q, 14BS/Q series
ERJ 3RS/Q, 6RS/Q, 8RS/Q, 14RS/Q, 12RS/Q, 12ZS/Q, 1TRS/Q series
ERJ L03, L06, L08, L14, L12, L1D series
Features
● Current sensing resistor
● Small size and lightweight
● Realize both low-resistance & High-precision by original thick film resistive element & special electrode structure
● Suitable for both reflow and flow soldering
● Realize High-power by double-sided resistive elements structure that aimed to suppress temperature rising
: ERJ2LW, 3LW, 6LW, 2BW, 3BW, 6BW, 8BW, 6CW, 8CW
● Low TCR
: ±75×10-6/K(ERJ6CW, ERJ8CW)
: Thick film resistors available from 5 mΩ (ERJ3LW, 6LW)
● Low resistance value
: IEC 60115-8, JIS C 5201-8, JEITA RC-2144
● Reference standard
● AEC-Q200 compliant
● RoHS compliant
■ As for packaging methods, land pattern, soldering conditions and safety precautions,
please see data files.
Explanation of part numbers
Note : Please check the "Ratings" for the presence/absence of part numbers for combinations of the symbols below.
● ERJ 2LW, 3LW, 6LW, 2BW, 3BW, 6BW, 8BW, 6CW, 8CW series
1
2
3
4
5
6
7
8
9
10
E
R
J
2
B
W
G
R
0
4
inch size Power rating
Resistance value
Code
Thick film
chip resistors
2LW
0402
0.2 W
10 mΩ
Code
3LW
0603
0.25 W
5 mΩ, 10 mΩ
D
±0.5 %*
6LW
0805
0.5 W
5, 6, 7, 8, 9 mΩ
F
±1 %
Tolerance
12
X
7
Resistance value
Resistance tolerance
Product code
11
Shown by 4 digits or letters.
(Ex.)
R005 : 0.005 Ω = 5 mΩ
R047 : 0.047 Ω = 47 mΩ
2BW
0402
0.25 W
47 m to 100 mΩ
G
±2 %
3BW
0603
0.33 W
20 m to 100 mΩ
J
±5 %
6BW
0805
0.5 W
10 m to 100 mΩ
*Please refer to the rating table
8BW
1206
1W
10 m to 100 mΩ
for the resistance tolerance.
6CW
0805
0.5 W
10 m to 30 mΩ
8CW
1206
1W
10 m to 50 mΩ
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.
Packaging methods
Code
Packaging
Part No.
X
Pressed carrier taping
2 mm pitch, 10,000 pcs
ERJ2LW
ERJ2BW
Punched carrier taping
4 mm pitch, 5,000 pcs
ERJ3LW
ERJ6LW
ERJ3BW
ERJ6BW
ERJ8BW
ERJ6CW
ERJ8CW
V
29-Sep-23
Thick Film Chip Resistors (Low Resistance Type)
Explanation of part numbers
Note : Please check the "Ratings" for the presence/absence of part numbers for combinations of the symbols below.
● ERJ 2BS/Q, 3BS/Q, 6BS/Q, 8BS/Q, 14BS/Q, 6DDS/Q, 3RS/Q, 6RS/Q, 8RS/Q, 14RS/Q, 12RS/Q,
12ZS/Q, 1TRS/Q series
1
2
3
4
5
6
7
8
9
10
11
E
R
J
8
R
Q
F
R
2
2
V
Size, Power rating
Product code
Thick film
chip resistors
Code
0402
0603
0603
0805
0805
0805
1206
1206
1210
1210
1812
2010
2512
2B
3B
3R
6D
6B
6R
8B
8R
14B
14R
12R
12Z
1TR
Resistance value region
inch size Power rating
0.166 W
0.25 W
0.1 W
0.5 W
0.33 W
0.125 W
0.5 W
0.25 W
0.5 W
0.25 W
0.5 W
0.5 W
1W
S
Q
0.1Ω to 0.2Ω
0.22Ω to 9.1Ω*
Resistance tolerance
Tolerance
±0.5 %*
±1 %
±2 %
±5 %
Code
D
F
G
J
*2B:0.22 Ω to 1.0 Ω
*Please refer to the
rating table for the
resistance tolerance.
Resistance value
Shown by 3 digits
or letters.
Only when it is D
(E24,E96) or F
(E96), shown by 4
digits or letters.
(Ex.)
R22 : 0.22 Ω
R102 : 0.102 Ω
Packaging methods
Packaging
Part No.
Code
X
V
Punched carrier taping
2 mm pitch,10,000 pcs
ERJ2B
Punched carrier taping
4 mm pitch, 5,000 pcs
ERJ3B/3R
ERJ6D/6B/
ERJ6R
ERJ8B/8R
ERJ14B/14R
Embossed carrier taping
4 mm pitch, 5,000 pcs
U
ERJ12R
ERJ12Z
Embossed carrier taping
4 mm pitch, 4,000 pcs
ERJ1TR
● ERJ L03, L06, L08, L14, L12, L1D series
1
2
3
4
5
6
7
8
9
10
11
12
E
R
J
L
1
4
K
J
5
0
M
U
Product Code
Thick film
chip resistors
Size, Power rating
Code
L03
L06
L08
L14
L12
L1D
Code
inch size Power rating
0603
0.2 W
0805
1206
1210
1812
2010
0.25 W
0.33 W
0.33 W
0.5 W
0.5 W
Resistance value
Standard *
Resistance tolerance
20 mΩ, 22 mΩ,
33 mΩ, 39 mΩ,
47 mΩ, 50 mΩ,
K
Code
Tolerance
F
±1 %
±5 %
J
100 mΩ
U
20 mΩ to 100 mΩ*
Resistance value
Shown by 3 digits
or letters.
(Ex.)
50M : 50 mΩ
10C : 100 mΩ
Code
Packaging methods
Packaging
Part No.
V
Punched carrier taping
4 mm pitch, 5,000 pcs
ERJL03
ERJL06
ERJL08
U
Embossed carrier taping
4 mm pitch, 5,000 pcs
ERJL14
ERJL12
ERJL1D
*L03, L06, L08 : 47 mΩ to 100 mΩ
L1D : 40 mΩ to 100 mΩ
Ratings
<High power (double-sided resistive elements structure) type>
Resistance
range*2
(Ω)
T.C.R.
(×10-6/K)
±1, ±2, ±5
±1, ±2, ±5
10 m
5m
10 m
5, 6, 7, 8, 9 m
47 m to 100 m
(E24)
0 to +500
0 to +700
0 to +300
0 to +300
0 to +300
0.33
±1, ±2, ±5
20 m to 100 m
(E24)
20 mΩ ≤ R < 39 mΩ :0 to +250
39 mΩ ≤ R ≤ 100 mΩ :0 to +150
ERJ6BW (0805)
0.5
±1, ±2, ±5
10 m to 100 m
(E24)
10 mΩ ≤ R < 15 mΩ :0 to +300
15 mΩ ≤ R ≤ 100 mΩ :0 to +200
ERJ8BW (1206)
1
±1, ±2, ±5
10 m to 100 m
(E24)
ERJ6CW (0805)
ERJ8CW (1206)
0.5
1
±0.5, ±1, ±2, ±5
±1, ±2, ±5
10 m to 30 m
10 m to 50 m
(E24)
(E24)
Power rating
(70 ℃)*1
(W)
Resistance tolerance
(%)
ERJ2LW (0402)
0.2
±1, ±2, ±5
ERJ3LW (0603)
0.25
±1, ±2, ±5
ERJ6LW (0805)
ERJ2BW (0402)
0.5
0.25
ERJ3BW (0603)
Part No.
(inch size)
Category
temperature
range(℃)
AEC-Q200
Grade
–55 to +125
Grade 1
–55 to +155
Grade 0
–55 to +125
Grade 1
10 mΩ ≤ R < 20 mΩ :0 to +200
20 mΩ ≤ R < 47 mΩ :0 to +150
47 mΩ ≤ R ≤ 100 mΩ :0 to +100
±75
±75
*1: Use it on the condition that the case temperature is below the upper category temperature.
*2: Please contact us when resistors of irregular series are needed.
・ Rated Continuous Working Voltage (RCWV) shall be determined from RCWV=√Power Rating × Resistance Value.
・ Overload Test Voltage (OTV) shall be determined from OTV=Specified Magnification (refer to performance) × RCW.
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.
29-Sep-23
Thick Film Chip Resistors (Low Resistance Type)
Ratings
<High power type>
Part No.
(inch size)
(70 ℃)
(W)
Resistance
tolerance
(%)
0.166
±1, ±2, ±5
Power rating
*1
ERJ2BS (0402)
ERJ2BQ (0402)
ERJ3BS (0603)
0.25
ERJ3BQ (0603)
±1, ±2, ±5
ERJ6DS (0805)
0.5
ERJ6DQ (0805)
±0.5, ±1, ±2, ±5
ERJ6BS (0805)
0.33
ERJ6BQ (0805)
±1, ±2, ±5
ERJ8BS (1206)
0.5
ERJ8BQ (1206)
±1, ±2, ±5
ERJ14BS (1210)
0.5
ERJ14BQ (1210)
±1, ±2, ±5
Resistance
range*3
(Ω)
T.C.R.
(×10-6/K)
0.10 to 0.20
(E24)
0.22 to 1.0
(E24)
0.22 Ω ≤ R ≤ 1.0 Ω : 0 to +250
0.10 to 0.20
(E24)
0.10 Ω ≤ R < 0.22 Ω : 0 to +300
0.22 to 0.91
(E24)
0.22 Ω ≤ R < 1.0 Ω : 0 to +300
1.0 to 9.1
(E24)
*2
Category
temperature
range(℃)
AEC-Q200
Grade
–55 to +155
Grade 0
0.10 Ω ≤ R < 0.22 Ω : 0 to +300
1.0 Ω ≤ R ≤ 9.1 Ω : ±200
0.10 to 0.20
(E24 )
0.22 to 9.1
(E24*2)
0.10 to 0.20
(E24)
0.10 Ω ≤ R < 0.22 Ω : 0 to +250
0.22 to 0.91
(E24)
0.22 Ω ≤ R < 1.0 Ω : 0 to +250
0.10 Ω ≤ R < 0.22 Ω : 0 to +150
0.22 Ω ≤ R < 1.0 Ω : 0 to +100
1.0 Ω ≤ R ≤ 9.1 Ω : ±100
1.0 to 9.1
(E24)
0.10 to 0.20
(E24)
0.10 Ω ≤ R < 0.22 Ω : 0 to +250
0.22 to 0.91
(E24)
0.22 Ω ≤ R < 1.0 Ω : 0 to +250
1.0 to 9.1
(E24)
0.10 to 0.20
(E24)
0.10 Ω ≤ R < 0.22 Ω : 0 to +200
0.22 to 0.91
(E24)
0.22 Ω ≤ R < 1.0 Ω : 0 to +200
1.0 to 9.1
(E24)
1.0 Ω ≤ R ≤ 9.1 Ω : ±200
1.0 Ω ≤ R ≤ 9.1 Ω : ±200
1.0 Ω ≤ R ≤ 9.1 Ω : ±100
*1: Use it on the condition that the case temperature is below the upper category temperature.
*2: E96 series resistance values are also available. Please contact us for details.
*3: Please contact us when resistors of irregular series are needed.
・ Rated Continuous Working Voltage (RCWV) shall be determined from RCWV=√Power Rating × Resistance Value.
・ Overload Test Voltage (OTV) shall be determined from OTV=Specified Magnification (refer to performance) × RCW.
<Standard type>
Part No.
(inch size)
Power rating
(70 ℃)*1
(W)
Resistance tolerance
(%)
ERJ3RS (0603)
ERJ3RQ (0603)
0.1
±1, ±2, ±5
ERJ6RS (0805)
ERJ6RQ (0805)
0.125
±1, ±2, ±5
ERJ8RS (1206)
ERJ8RQ (1206)
0.25
±1, ±2, ±5
ERJ14RS (1210)
ERJ14RQ (1210)
0.25
±1, ±2, ±5
ERJ12RS (1812)
ERJ12RQ (1812)
0.5
±1, ±2, ±5
ERJ12ZS (2010)
ERJ12ZQ (2010)
0.5
±1, ±2, ±5
ERJ1TRS (2512)
ERJ1TRQ (2512)
1
±1, ±2, ±5
Resistance
range*2
(Ω)
T.C.R.
(×10-6/K)
0.10 to 0.20
(E24)
0.10 Ω ≤ R < 0.22 Ω : 0 to +300
0.22 to 0.91
(E24)
0.22 Ω ≤ R < 1.0 Ω : 0 to +300
1.0 to 9.1
(E24)
0.10 to 0.20
(E24)
0.10 Ω ≤ R < 0.22 Ω : 0 to +250
0.22 to 0.91
(E24)
0.22 Ω ≤ R < 1.0 Ω : 0 to +250
1.0 to 9.1
(E24)
0.10 to 0.20
(E24)
0.10 Ω ≤ R < 0.22 Ω : 0 to +250
0.22 to 0.91
(E24)
0.22 Ω ≤ R < 1.0 Ω : 0 to +250
1.0 to 9.1
(E24)
0.10 to 0.20
(E24)
0.10 Ω ≤ R < 0.22 Ω : 0 to +200
0.22 to 0.91
(E24)
0.22 Ω ≤ R < 1.0 Ω : 0~+200
1.0 to 9.1
(E24)
0.10 to 0.20
(E24)
0.10 Ω ≤ R < 0.22 Ω : 0 to +200
0.22 to 0.91
(E24)
0.22 Ω ≤ R < 1.0 Ω : 0 to +200
1.0 to 9.1
(E24)
0.10 to 0.20
(E24)
0.10 Ω ≤ R < 0.22 Ω : 0 to +200
0.22 to 0.91
(E24)
0.22 Ω ≤ R < 1.0 Ω : 0 to +200
1.0 to 9.1
(E24)
0.10 to 0.20
(E24)
0.10 Ω ≤ R < 0.22 Ω : 0 to +200
0.22 to 0.91
(E24)
0.22 Ω ≤ R < 1.0 Ω : 0 to +200
1.0 to 9.1
(E24)
Category
temperature
range(℃)
AEC-Q200
Grade
–55 to +155
Grade 0
1.0 Ω ≤ R ≤ 9.1 Ω : ±200
1.0 Ω ≤ R ≤ 9.1 Ω : ±200
1.0 Ω ≤ R ≤ 9.1 Ω : ±200
1.0 Ω ≤ R ≤ 9.1 Ω : ±100
1.0 Ω ≤ R ≤ 9.1 Ω : ±100
1.0 Ω ≤ R ≤ 9.1 Ω : ±100
1.0 Ω ≤ R ≤ 9.1 Ω : ±100
*1: Use it on the condition that the case temperature is below the upper category temperature.
*2: Please contact us when resistors of irregular series are needed.
・ Rated Continuous Working Voltage (RCWV) shall be determined from RCWV=√Power Rating × Resistance Value.
・ Overload Test Voltage (OTV) shall be determined from OTV=Specified Magnification (refer to performance) × RCW.
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.
29-Sep-23
Thick Film Chip Resistors (Low Resistance Type)
Ratings
<Low TCR type>
Part No.
(inch size)
Power rating
(70 ℃)*1
(W)
Resistance tolerance
(%)
Resistance
range*2
(Ω)
T.C.R.
(×10-6/K)
ERJL03 (0603)
0.2
±1, ±5
47 m to 100 m
±200
ERJL06 (0805)
0.25
±1, ±5
47 m to 100 m
±100
ERJL08 (1206)
0.33
±1, ±5
47 m to 100 m
±100
ERJL14 (1210)
0.33
±1, ±5
20 m to 100 m
ERJL12 (1812)
0.5
±1, ±5
20 m to 100 m
ERJL1D (2010)
0.5
±1, ±5
40 m to 100 m
Category
temperature
range(℃)
AEC-Q200
Grade
–55 to +125
Grade 1
R < 47 mΩ : ±300
R ≥ 47 mΩ : ±100
*1: Use it on the condition that the case temperature is below the upper category temperature.
*2: Standard R.V. : 20 mΩ, 22 mΩ, 33 mΩ, 39 mΩ, 47 mΩ, 50 mΩ, 100 mΩ, Custom R.V. : Each 1 mΩ within upper range.
・ Rated Continuous Working Voltage (RCWV) shall be determined from RCWV=√Power Rating × Resistance Value.
・ Overload Test Voltage (OTV) shall be determined from OTV=Specified Magnification (refer to performance) × RCW.
Power derating curve
100
Rated load (%)
For resistors operated in ambient temperatures
above 70 ℃, power rating shall be derated in
accordance with the figure on the right.
70 ℃
-55 ℃
80
60
40
155 ℃
20
125 ℃
0
-60
-40
-20
0
20
40
60
80
100 120 140
160 180
Ambient temperature (℃)
Construction
Protective coating
Alumina substrate
Thick film resistive element
Electrode (Inner)
Electrode (Middle)
Electrode (Outer)
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.
29-Sep-23
Thick Film Chip Resistors (Low Resistance Type)
Dimensions (not to scale)
L
a
W
T
b
Part No.
Unit : mm
Dimensions
L
W
a
b
T
Mass (Weight)
(Reference)
(g/1000 pcs)
ERJ2LW
1.00±0.10
0.50+0.10/-0.05
0.25±0.10
0.25±0.10
0.40±0.05
0.8
ERJ2BW
1.00±0.10
0.50+0.10/-0.05
0.24±0.10
0.24±0.10
0.35±0.05
0.8
ERJ2B
1.00±0.10
0.50+0.10/-0.05
0.20±0.10
0.27±0.10
0.35±0.05
0.8
ERJ3LW
(5 mΩ)
1.60±0.15
0.80±0.15
0.50±0.20
0.50±0.20
0.55±0.10
3
ERJ3LW
(10 mΩ)
ERJ3BW
1.60±0.15
0.80±0.15
0.40±0.20
0.40±0.20
0.55±0.10
3
ERJ3R
ERJ3B
ERJL03
1.60±0.15
0.80+0.15/-0.05
0.30±0.20
0.30±0.15
0.45±0.10
2
ERJ6LW
2.00±0.20
1.25±0.20
0.63±0.20
0.63±0.20
0.70±0.10
6
ERJ6BW
2.00±0.20
1.25±0.20
0.55±0.20
0.55±0.20
0.65±0.10
6
0.60±0.20
0.60±0.20
2.05±0.20
1.30±0.20
0.65±0.10
6
ERJ6CW
(10 to 13 mΩ)
ERJ6CW
(15 to 30 mΩ)
0.45±0.20
0.45±0.20
ERJ6D
2.00±0.20
1.25±0.10
0.40±0.20
0.55±0.25
0.60±0.10
5
ERJ6R
ERJ6B
ERJL06
2.00±0.20
1.25±0.10
0.40±0.20
0.40±0.20
0.60±0.10
5
ERJ8BW
3.20±0.20
1.60±0.20
1.00±0.20
1.00±0.20
0.65±0.10
13
ERJ8CW
3.20±0.20
1.60±0.20
1.10±0.20
1.10±0.20
0.65±0.10
13
ERJ8CW
3.20±0.20
1.60±0.20
0.60±0.20
0.60±0.20
0.65±0.10
13
ERJ8R
ERJ8B
ERJL08
3.20+0.05/-0.20
1.60+0.05/-0.15
0.50±0.20
0.50±0.20
0.60±0.10
10
ERJ14R
ERJ14B
ERJL14
3.20±0.20
2.50±0.20
0.50±0.20
0.50±0.20
0.60±0.10
16
ERJ12R
ERJL12
4.50±0.20
3.20±0.20
0.50±0.20
0.50±0.20
0.60±0.10
27
ERJ12Z
ERJL1D
5.00±0.20
2.50±0.20
0.60±0.20
0.60±0.20
0.60±0.10
27
ERJ1TR
6.40±0.20
3.20±0.20
0.65±0.20
0.60±0.20
0.60±0.10
45
(10 to 16 mΩ)
(18 to 50 mΩ)
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.
29-Sep-23
Thick Film Chip Resistors (Low Resistance Type)
Performance
● ERJ2 LW, 3LW, 6LW, 2BW, 3BW, 6BW, 8BW, 6CW, 8CW series
<High power (double-sided resistive elements structure) type>
Test item
Performance
requirements ⊿R
Test conditions
Resistance
Within specified
tolerance
20 ℃
T. C. R.
Within specified
T. C. R.
+25 ℃ / +125 ℃
Overload
±2 %
Resistance to soldering heat
±1 %
Rapid change of temperature
±1 %
ERJ2LW : ±2 %
–55 ℃ (30min.) / +155 ℃ (ERJ□LW, ERJ□CW : +125 ℃)
(30 min.), 100 cycles
High temperature exposure
Damp Heat, Steady state
±1 %
±1 %
+155 ℃ (ERJ□LW, ERJ□CW : +125 ℃), 1000 h
60 ℃, 90 % to 95 %RH, 1000 h
Load life in humidity
±3 %
60 ℃, 90 % to 95 %RH, Rated voltage,
1.5 h ON / 0.5 h OFF cycle, 1000 h
Endurance at 70 ℃
±3 %
70 ℃, Rated voltage, 1.5 h ON / 0.5 h OFF cycle, 1000 h
ERJ6LW
ERJ8BW (R > 0.05 Ω)
Other
: Rated voltag× 1.77, 5 s
: Rated voltag× 1.77, 5 s
: Rated voltag× 2.0, 5 s
270 ℃, 10 s
● ERJ 2BS/Q, 3BS/Q, 6BS/Q, 8BS/Q, 14BS/Q, 6DDS/Q, 3RS/Q, 6RS/Q, 8RS/Q, 14RS/Q, 12RS/Q,
12ZS/Q, 1TRS/Q series
Test item
Performance
requirements ⊿R
Test conditions
Resistance
Within specified
tolerance
20 ℃
T. C. R.
Within specified
T. C. R.
+25 ℃ / +125 ℃
Overload
Resistance to soldering heat
Rapid change of temperature
High temperature exposure
Damp Heat, Steady state
±2 %
±1 %
±1 %
±1 %
±1 %
Load life in humidity
±3 %
60 ℃, 90 % to 95 %RH, Rated voltage,
1.5 h ON / 0.5 h OFF cycle, 1000 h
Endurance at 70 ℃
±3 %
70 ℃, Rated voltage, 1.5 h ON / 0.5 h OFF cycle, 1000 h
Rated voltage× 2.5 (ERJ6D : ×1.77 ), 5 s
270 ℃, 10 s
–55 ℃ (30 min.) / +155 ℃ (30 min.),100 cycles
+155 ℃, 1000 h
60 ℃, 90 % to 95 %RH, 1000 h
● ERJ L03, L06, L08, L14, L12, L1D series < Low TCR type >
Test item
Performance
requirements ⊿R
Test conditions
Resistance
Within specified
tolerance
20 ℃
T. C. R.
Within specified
T. C. R.
+25 ℃ / +125 ℃
Overload
Resistance to soldering heat
Rapid change of temperature
High temperature exposure
Damp Heat, Steady state
±2 %
±1 %
±1 %
±1 %
±1 %
Load life in humidity
±3 %
60 ℃, 90 % to 95 %RH, Rated voltage,
1.5 h ON / 0.5 h OFF cycle, 1000 h
Endurance at 70 ℃
±3 %
70 ℃, Rated voltage, 1.5 h ON / 0.5 h OFF cycle, 1000 h
Rated voltage× 2.5, 5 s
270 ℃, 10 s
–55 ℃ (30 min.) / +125 ℃ (30 min.), 100 cycles
+125 ℃, 1000 h
60 ℃, 90 % to 95 %RH, 1000 h
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.
29-Sep-23
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 product 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, the specification document suited to each application
shall be signed/sealed (with Panasonic and the user) in advance..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.
01-Dec-23
Matters to Be Observed When Using This Product
Matters to Be Observed When Using This Product
(Fixed resistor)
Use environments and cleaning conditions
■ This product (fixed resistor) is not designed for use in specific environments. Using the resistor in the following specific
environments or service conditions may affect the performance/reliability of the resistor. Avoid using it in such specific
environments. If you intend to use the resistor in such environments, checking the performance, reliability, etc., of the
product sufficiently is your own responsibility.
(1) Used in liquid, such as water, oil, chemicals, and organic solvents.
(2) Used in a place exposed to direct sunlight, an outdoor place with no shielding, or a dusty place.
(3) Used in a place where the product is heavily exposed to sea breeze or a corrosive gas, such as Cl2, H2S, NH3, SO2,
or NOX.
(4) Used in an environment where static electricity and electromagnetic waves are strong.
(5) Located close to a heating component or a flammable material, such as a vinyl cable placed near the product.
(6) Sealed or coated with a resin.
(7) Solder flux of the resistor soldered with no-clean type solder, etc., is cleansed with a solvent, water, or a water-soluble
cleaner, etc. (Water-soluble flux residues have a particularly large influence on a resistor.)
(8) Used in a place where dew concentrates on the product.
(9) Used in a contaminated state.
(Example: Touching the resistor mounted on a printed board leaving sebum on the resistor (improper handling))
■ Sealing the resistor with a resin in a resin potting process, damp-proofing process, etc., applies excessive stress to the
resistor, which may cause the internal electrodes a connection problem. In such cases, the proper operation of the
resistor is not guaranteed. If you intend to use the resistor in such environments, checking the performance, reliability, etc.,
of the product sufficiently is your own responsibility.
■ Do not leave the resistor immersed in a solvent for a long time. When using the resistor immersed in a solvent, confirm
the operation of the product mounted on the board.
■ When a cleaning solution or cleaning condition for cleaning the printed board or a drying condition for drying the printed
board after soldering the resistor is improper, it may have a negative effect on the performance/reliability of the resistor.
Confirming these conditions sufficiently is your own responsibility. Also examine the effects of soiled cleaning agent,
cleaning residues, and post-cleaning contaminations, and control for these effects properly.
Response to anomalies and handling conditions
■ When the resistor is heating abnormally or emitting a smell, stop using the resistor immediately, for example, turn off
the main power supply of the device.
Also, keep your face and hands away from the product as it may become hot and cause burns.
■ The resistor is so thin that it may break easily when subjected to impact. Before putting the resistor in use, confirm that
the resistor has not been broken by impact that applied thereto when mounted on the printed board. Applying impact to
the resistor or pinching the resistor with a hard tool (pliers, tweezers, etc.) may chip the resistor or its protective film,
which affects its performance. Be careful to avoid such cases.
■ Do not reuse a resistor having been used on a printed board and removed therefrom. Do not touch the resistor with your
bare hands.
■ Be careful not to drop the resistor on the floor, etc. The resistor is likely to suffer mechanical or electrical damage when
dropped on the floor. Avoid using said resistor.
■ The resistor may have its resistance value changed due to electrostatic discharge (ESD). Take ESD prevention measures
when handling the resistor. ESD prevention measures include an environment where static electricity is not likely to be
generated (recommended RH: 40% to 60%), by wearing an earth band, conductive gloves, etc., grounding the device in
which the resistor is incorporated, and placing a conductive mat, etc., on a work platform.
■ It is guaranteed that a resistor not exposed to any stress will have its proper resistance value. Any stress or pressure
applied to the resistor may cause its resistance value to change. Examine and evaluate the characteristics of the resistor
sufficiently before using it.
30-Jun-23
Matters to Be Observed When Using This Product
Reliability and product life
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 and circuit board design
■ To prevent a case where a transient load (e.g., a pulse for a short period) too large for the product to handle is applied,
make sure to evaluate and confirm the operation of the product incorporated in your product. Applying power or voltage
(current) larger than the rated power or rated voltage (current) to the resistor may impair its performance and reliability.
Make sure to use the resistor with power or voltage (current) equal to or lower than the rated power or rated voltage
(current). The product warranty does not cover usage where an excessively large load, such as a pulse current, is
applied to the product.
■ The resistor may have a high temperature even when used with power equal to or lower than the rated power. Be careful
in such cases. Another factor to be considered are effects on the board, peripheral components, etc., and the effects of
peripheral components on the resistor. Make sure to confirm first that the temperature of the resistor incorporated in your
product is equal to or lower than the specified temperature, and then use the resistor.
■ When the resistors are connected in series or parallel, loads applied respectively to the resistors may not be equal to
each other. Check whether the loads are equal in the actual circuit in which the resistors are incorporated.
■ When a resistor is used in a high-frequency circuit, the resistor may fail to offer the required characteristics. Check
whether the resistor offers the required characteristics in the actual circuit in which the resistors are incorporated.
■ Be careful that unusual stress caused by an excessive bend of the printed board is not applied to the resistor. Design the
circuit structure such that the resistor is not close to a perforated line for board splitting or on a line with sizable holes
bored on the board.
■ When a different component is mounted on the board where the resistor has been soldered, be careful that the board
does not bend excessively. If necessary, provide the board with backup pins (support pins) to keep it straight.
■ Avoid manual board splitting. Use a jig, etc., to break the board so that it does not bend excessively when split apart.
Mounting conditions
■ When the product is used under mounting conditions departing from mounting conditions specified in our specification
sheet, the product may be exposed to unexpected stress to fail. Be careful to avoid such a case. When mounting the
resistor on a printed board, set the resistor’s front and back surfaces in the direction indicated by the tape. Make sure to
evaluate and confirm the operation of the resistor incorporated in your product and determine whether the resistor is
usable as a component of the product.
■ Set soldering conditions for the resistor within the recommended soldering conditions specified by our company. Any time,
soldering condition departing from the specified soldering condition, such as a high peak temperature or a long heating
may impair the performance/reliability of the resistor. Note that the specified soldering conditions indicate conditions
under which degradation of the resistor characteristics does not occur but do not indicate conditions under which stable
soldering can be performed. Check and set individual conditions under which stable soldering can be performed.
■ Heat the resistor in advance so that a difference between the soldering temperature and the temperature of the resistor
surface is reduced to 100 ℃ or lower. When dipping the soldered resistor in a solvent, etc., to cool the resistor rapidly,
ensure that the temperature difference between the resistor and the solvent is 100 ℃ or lower during the dipping.
■ When soldering the resistor using a soldering iron, apply hot air, etc., to the resistor to heat it sufficiently in advance and
then solder the resistor without bringing the soldering iron tip into contact with the product. If the temperature of the
soldering iron tip is high, finish the soldering work quickly (within 3 seconds when the temperature of the soldering iron
tip is 350 ℃ or lower). In the case of a fixed resistor with low resistance, the resistor may fail to offer the exactly intended
resistance value because of the variation in the solder volume, etc. Make sure to confirm the resistance value of the
resistor in the actual circuit configuration.
30-Jun-23
Matters to Be Observed When Using This Product / Reference Information
■ Soldering the resistor with too much solder or too little solder results in the poor reliability of the solder connection of the
resistor. Use the proper volume of solder in the soldering process. Sufficiently check for the volume of solder used.
■ Soldering with high bond strength or special property solder may affect the quality of the resistor. Do not use such solder.
■ Use rosin-based solder flux. When using highly active solder flux made mainly of halogen (chlorine, bromine, etc.), flux
residues may affect the performance and reliability of the resistor. Check the effects of flux residues before using the solder
flux. Do not use highly acidic flux, water-soluble flux, or flux containing fluoride ions. When solder flux sticks to the resistor
after the soldering process, the activation energy of the flux may corrode the resistor and cause it to fail. Prevent solder flux
from sticking to the resistor.
Storage conditions
Keeping the product in the following environments or conditions may lead to degradation of its performance, solderability, etc.
Do not keep the product in the following environments.
(1) Stored in a place where the product is heavily exposed to sea breeze or a corrosive gas, such as Cl2, H2S, NH3, SO2,
or NOX.
(2) Stored in a place where the product is exposed to direct sunlight.
(3) Stored in a place where a temperature condition of 5 ℃ to 35 ℃ and a relative humidity condition of 45% to 85% cannot
be maintained.
(4) Kept in storage for more than one year from the delivery date (when the product is kept in conditions excluding any of
the environments (1) to (3)).
Reference information
Guidelines
Before using the resistor, refer to the technical report issued by JEITA, EIAJ RCR-2121B "Safety Application Guide for
Fixed Resistor for Use in Electronic Equipment" revised in February 2015.
30-Jun-23