HOKURIKU WLCR50

High Power Low Resistance Chip Resistors
Model No.
Size Code
INCH
Size Code
mm
WLCR32
WLCR50
WLCR64
1206
2010
2512
3216
5025
6432
■ Features
・High power type, milliohm resistor product. Low resistance range covers from 10mΩ.
・Wide terminal made higher reliability of solder joint, compared to conventional chip resistor.
・Wide terminal made possible high power handling. (Rated power, WLCR64: 2W, WLCR50: 1W, WLCR32: 0.5W)
・High joint-strength against heat shock.
■ Applications
・Automotive electronics such as E.C.U., etc.
・Circuits requiring high resistance to vibration
・For current detection
■ Model Designation
WLCR32
R10
①Model No.
②Resistance
①Model No.
WLCR32
WLCR50
WLCR64
J
②Resistance
3 or 4 digit
(Less than 100mΩ: all 4 digit
(Example)
10mΩ
470mΩ
102mΩ
→
→
→
V
③Tolerance
③Tolerance
Symbol Tolerance(%)
F
± 1.0
J
± 5.0
④Packaging
Symbol
B
V
E
R010
R47
R102
④Pckging
Packaging
Bulk
Paper taping (WLCR32)
Embossed taping
(WLCR50,WLCR64)
■ Rating
Model No.
Rated Wattage
(W)
WLCR32
0.5
Tolerance
(%)
J: ±5%
F: ±1%
WLCR50
1.0
J: ±5%
F: ±1%
WLCR64
2.0
J: ±5%
F: ±1%
Resistance
(mΩ)
10~33
36~91
100~910
100~976
10~33
36~91
100~910
100~976
10~33
36~91
100~910
100~976
T.C.R.
(ppm/ ℃)
±500
±350
±200
±200
±500
±350
±200
±200
±500
±350
±200
±200
Max. Working
Voltage (V)
Max. Overload
Voltage (V)
200
400
200
400
200
400
Operating Temperature Range : -55℃~+155℃
HOKURIKU
Specifications are subject to change without notice
.
1
High Power Low Resistance Chip Resistors
■ Dimensions
Unit : mm
L
c
d
W
t
■ Structure
③ ④ ⑤
②
⑥
①
Symbol
①
②
③
④
⑤
⑥
Model No.
L
W
c
d
WLCR32
3.20±0.15
1.60±0.15
0.30±0.20
0.50±0.20
WLCR50
WLCR64
5.00±0.20
6.30±0.20
2.50±0.20
3.20±0.20
0.50±0.20
0.50±0.20
0.60±0.20
0.90±0.20
t
0.55
+0.15/-0.05
0.56±0.15
0.56±0.15
Material List
Ceramic Substrate
Conductor
Resistor
Over coat
Marking
Side Electrode
■ Surface Temperature
For resistors operated in ambient temperature above70 ℃,
power rating must be derated in accordance with the
Power rating (%)
100
derating curve.
80
60
40
20
0
-55℃
0℃
70℃
155℃
Ambient Temperature(℃)
■ Surface Temperature
Condition : Measured by soldering on glass
cloth base material epoxy resin (t=1.6mm).
Surface temperature (℃)
Surface temperature rise is shown in this figure.
WLCR50
WLCR64
150
WLCR32
100
50
0
50
100
200
300
Power rating (%)
■ Packaging
Refer "Dimension, Packaging, etc."
HOKURIKU
Specifications are subject to change without notice
2