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High Power Chip Resistors / Wide Terminal Type
High Power Chip Resistors /
Wide Terminal Type
Type: ERJ A1, B1, B2, B3
Features
● High solder-joint reliability by wide terminal construction
● Excellent heat dissipation characteristics by wide terminal
● AEC-Q200 qualified
● RoHS compliant
construction
Recommended Applications
● Automotive electronic circuits including ECUs (Electrical control unit), anti-lock breaking systems and air-bag systems
● Current sensing for power supply circuits in a variety of equipment
■ As for Packaging Methods, Land Pattern, Soldering Conditions and Safety Precautions,
Please see Data Files
Explanation of Part Numbers
Product Code
Thick Film
Chip Resistors
1
2
3
4
5
6
7
8
9
10
11
E
R
J
A
1
A
J
1
0
2
U
Size, Power Rating
Code Inch Power R.
1.33 W
A1 1225
1 W,
B1 1020
2W
R < 10 Ω
0.75 W,
1W
B2 0612
R < 10 Ω
0.33 W,
0.5 W
B3 0508
R<1Ω
(
)
(
)
(
)
Resistance Value Region
A 10 Ω < R
B 0.22 Ω < R <10 Ω
C 0.01 Ω < R < 0.22 Ω
D 0.005 Ω < R < 0.01 Ω
Resistance Tolerance
F
±1%
G
±2%
J
±5%
Code
V
U
Resistance Value
Shown by 3 digits or letters. Only when it is impossible,
shown by 4 digits or letters.
(Ex.) 102 : 1.0 kΩ
R01 : 0.01 Ω = 10 mΩ
4R7 : 4.7 Ω
R015 : 0.015 Ω = 15 mΩ
Packaging Methods
Packaging
Punched Carrier Taping
4 mm pitch, 5,000 pcs.
Part No.
ERJB2
ERJB3
Embossed Carrier Taping
ERJB1
4 mm pitch, 5,000 pcs.
Embossed Carrier Taping
ERJA1
4 mm pitch, 4,000 pcs.
Ratings
Part No.
(inch size)
ERJA1
(1225)
ERJB1
(1020)
ERJB2
(0612)
ERJB3
(0508)
Limiting
Power
Element
(1)
Rating
Voltage
at 70 °C (W)
(V)
1.33
200
Maximum
Resistance
Resistance
Category
T.C.R.
Overload
(2)
–6
Tolerance
Range
Temperature Range
(×10 /°C)
Voltage
(Ω)
(°C)
(%)
(V)
±1
100 m to 10 k (E24) R < 100 mΩ : ±350
100 mΩ < R : ±100 (±1%)
400
–55 to +155
±2, ±5
10 m to 10 k (E24)
±200 (±2%, ±5%)
1
2(R < 10 Ω)
200
400
0.75
1(R < 10 Ω)
200
400
0.33
0.5(R < 1 Ω)
150
200
R < 22 mΩ : ±350
22 mΩ < R < 47 mΩ : ±200
47 mΩ < R < 100 mΩ : ±150 (±1%)
±1, ±2, ±5 10 m to 10 k (E24)
–55 to +155
±200 (±2%, ±5%)
100 mΩ < R : ±100 (±1%)
±200 (±2%, ±5%)
±1, ±2
10 m to 1 M (E24) R < 22 mΩ : 0 to +300
22 mΩ < R < 47 mΩ : 0 to +200
47 mΩ < R < 100 mΩ : 0 to +150
5 m to 1 M
–55 to +155
100 mΩ < R < 220 mΩ : 0 to +150 (±1%)
5 m to 9 m : 1mΩ step
±5
0 to +200 (±2%, ±5%)
10 m to 1 M : E24
220 mΩ < R :
±100 (±1%)
±200 (±2%, ±5%)
R < 47 mΩ : 0 to +300
47 mΩ < R < 1 Ω : 0 to +200
±1, ±2, ±5 20 m to 10 (E24)
–55 to +155
1 Ω < R : ±100 (±1%)
±200 (±2%, ±5%)
(
)
(1) Rated Continuous Working Voltage (RCWV) shall be determined from RCWV=√Power Rating × Resistance Values, or Limiting Element Voltage listed above, whichever less.
(2) Overload (Short-time Overload) Test Voltage (SOTV) shall be determined from SOTV=2.5 × RCWV or max. Overload Voltage listed above whichever less.
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.
06
Apr. 2015
High Power Chip Resistors / Wide Terminal Type
Protective coating
Electrode (Outer)
Thick film
Alumina substrate
resistive element
Electrode (Inner) Electrode (Between)
Rated Load (%)
Power Derating Curve
For resistors operated in ambient temperatures above
70 °C, power rating shall be derated in accordance
with the figure below.
Construction (Example : ERJA1 type)
100
70 °C
–55 °C
80
60
40
20
155 °C
0
–60 –40 –20 0
20 40 60 80 100 120 140 160 180
Ambient Temperature (°C)
Dimensions in mm (not to scale)
ERJB2 type
W
T
L
a a
Rl0
T
W
T
b
P
W
B1 B1
102
( 10 mΩ < R < 1 MΩ )
( R< 10 mΩ )
L
A1
L
10–fD
aa
ERJA1 type
b
B2 C B2
b b
A2
Mass (Weight) [1000 pcs.] : 40 g
Mass (Weight) [1000 pcs.] : 11 g
L
W
T
A1
B1
Dimensions
(mm) 3.20±0.20 6.40±0.20 0.55±0.10 0.70±0.20 0.45±0.20
A2
B2
P
C
0D
Dimensions
(mm) 0.70±0.20 1.25±0.15 1.27±0.10 0.30+0.10
–0.20 0.4 min.
Dimensions (mm)
L
W
T
a
b
0.65±0.15
0.30±0.20
5 mΩ<R<10 mΩ
0.30±0.20
10 mΩ<R<220 mΩ 1.60±0.15 3.20±0.20
0.55±0.15
0.50±0.20
220 mΩ<R<1 MΩ
0.25±0.20
ERJB1 type
ERJB3 type
W
W
L
aa
L
a
T
b
b
b
b
a
l03
T
Mass (Weight) [1000 pcs.] : 27 g
Mass (Weight) [1000 pcs.] : 4.8 g
L
W
T
a
b
Dimensions
(mm) 2.50±0.20 5.00±0.20 0.55±0.20 0.25±0.20 0.90±0.20
L
W
T
a
b
Dimensions
(mm) 1.25±0.10 2.00±0.15 0.50±0.10 0.25±0.20 0.40±0.20
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.
06
Apr. 2015
High Power Chip Resistors / Wide Terminal Type
Circuit Configuration
ERJA1 type
R
R
R
ERJB1 type
R
R
R
R
R
ERJB3 type
R
R
ERJB2 type
< Less than 10 mΩ >
R
R
R
R
< Low resistance zone >
R
R
< High resistance zone >
R
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.
06
Apr. 2015
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