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.
High Power Chip Resistors / Wide Terminal Type
E
1
R
2
J
3
A
4
1
5
A
6 7
J
8
1
9
0
10
2
11
U
Thick Film
Chip Resistors
Product Code Size, Power Rating
Code
A1
B1
B2
B3
Resistance Value Region
A
B
C
D
Resistance Value
Packaging Methods
VERJB2
ERJB3
ERJA1
Code Packaging Part No.
Punched Carrier Taping
4 mm pitch, 5,000 pcs.
Embossed Carrier Taping
4 mm pitch, 5,000 pcs.
Embossed Carrier Taping
4 mm pitch, 4,000 pcs.
10 Ω < R
0.22 Ω < R <10 Ω
0.01
Ω
< R < 0.22
Ω
0.005
Ω
< R < 0.01
Ω
Resistance Tolerance
F
G
J
± 1 %
± 2 %
± 5 %
Shown by 3 digits or letters. Only when it is impossible,
shown by 4 digits or letters.
Power R.
1.33 W
1 W,
2 W
(
R < 10 Ω
)
0.75 W,
1 W
(
R < 10 Ω
)
0.33 W,
0.5 W
(
R < 1 Ω
)
U
ERJB1
(Ex.) 102 : 1.0 kΩ
4R7 : 4.7 Ω
R01 : 0.01 Ω = 10 mΩ
R015 : 0.015 Ω = 15 mΩ
Inch
1225
1020
0612
0508
High Power Chip Resistors /
Wide Terminal Type
Type: ERJ A1, B1, B2, B3
● High solder-joint reliability by wide terminal con struc tion
● Excellent heat dissipation characteristics by wide terminal construction
● AEC-Q200 qualifi ed
● RoHS compliant
●
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
(1)
Rated Continuous Working Voltage (RCWV) shall be de ter mined from RCWV=√Power Rating × Re sis tance Values, or Limiting Element Voltage list ed above, whichever less.
(2) Overload (Short-time Overload) Test Voltage (SOTV) shall be de termined from SOTV=2.5 × RCWV or max. Over load Volt age list ed above which ev er less.
()
Features
Recommended Applications
Part No.
(inch size)
Power
Rating
at 70 °C (W)
Limiting
Element
Voltage(1)
(V)
Maximum
Overload
Voltage(2)
(V)
Resistance
Tolerance
(%)
Resistance
Range
(Ω)
T.C.R.
(×10–6/°C)
Category
Temperature Range
(°C)
ERJA1
(1225) 1.33 200 400
±1 100 m to 10 k (E24)
R < 100 mΩ : ±350
100 mΩ < R : ±100 (±1%)
±200 (±2%, ±5%)
–55 to +155
±2, ±5 10 m to 10 k (E24)
ERJB1
(1020)
1
2
(R < 10 Ω)
200 400 ±1, ±2, ±5 10 m to 10 k (E24)
R < 22 mΩ : ±350
22 mΩ < R < 47 mΩ : ±200
47 mΩ < R < 100 mΩ : ±150 (±1%)
±200 (±2%, ±5%)
100 mΩ < R : ±100 (±1%)
±200 (±2%, ±5%)
–55 to +155
ERJB2
(0612)
0.75
1(R < 10 Ω)200 400
±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
100 mΩ < R < 220 mΩ : 0 to +150 (±1%)
0 to +200 (±2%, ±5%)
220 mΩ < R : ±100 (±1%)
±200 (±2%, ±5%)
–55 to +155
±5
5 m to 1 M
5 m to 9 m : 1mΩ step
10 m to 1 M : E24
ERJB3
(0508)
0.33
0.5(R < 1 Ω)150 200 ±1, ±2, ±5 20 m to 10 (E24)
R < 47 mΩ : 0 to +300
47 mΩ < R < 1 Ω : 0 to +200
1 Ω < R : ±100 (±1%)
±200 (±2%, ±5%)
–55 to +155
Explanation of Part Numbers
Ratings
Apr. 201506
Construction (Example : ERJA1 type)
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.
High Power Chip Resistors / Wide Terminal Type
A2
B2 B1
A1
10–fD
B1
L
B2 C
PT
W
1 0 2
l 0 3
b
b
T
W
aa
L
R l 0
bb
T
W
aa
L
bb
T
W
aa
L
bb
T
W
aa
L
Protective coating
Thick film
resistive element
Electrode (Inner) Electrode (Between)
Electrode (Outer)
Alumina substrate
–60 –40 –20 0 20 40 60 80 100 120 140 160 180
0
20
40
60
80
100 70 °C
155 °C
Ambient Temperature (°C)
Rated Load (%)
–55 °C
ERJA1 type
Di men sions
(mm)
LWTA
1B1
3.20±0.20 6.40±0.20 0.55±0.10 0.70±0.20 0.45±0.20
Di men sions
(mm)
A2B2P0DC
0.70±0.20 1.25±0.15 1.27±0.10
0.30+0.10 0.4 min.
–0.20
Di men sions
(mm)
LWT a b
1.25±0.10 2.00±0.15 0.50±0.10 0.25±0.20 0.40±0.20
ERJB2 type
Mass (Weight) [1000 pcs.] : 11 g
Di men sions
(mm)
LWT a b
2.50±0.20 5.00±0.20 0.55±0.20 0.25±0.20 0.90±0.20
ERJB3 type ERJB1 type
Mass (Weight) [1000 pcs.] : 27 g
Mass (Weight) [1000 pcs.] : 40 g
( R< 10 mΩ ) ( 10 mΩ < R < 1 MΩ )
Di men sions
(mm) LWT a b
5 mΩ<R<10 mΩ
1.60±0.15 3.20±0.20
0.65±0.15 0.30±0.20 0.30±0.20
10 mΩ<R<220 mΩ
0.55±0.15 0.50±0.20
220 mΩ<R<1 MΩ
0.25±0.20
Mass (Weight) [1000 pcs.] : 4.8 g
Power Derating Curve
For resistors operated in ambient temperatures above
70 °C, power rating shall be derated in accordance
with the figure below.
Dimensions in mm (not to scale)
Apr. 201506
Circuit Con guration
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.
High Power Chip Resistors / Wide Terminal Type
RRRRRRRRR R
RR RR R R R
ERJA1 type ERJB1 type ERJB3 type
ERJB2 type
< High resistance zone >< Less than 10 mΩ > < Low resistance zone >
Apr. 201506
