Approval Sheet
Item
Series No.
General Specification
WF25
T & U
2512
WF20
T & U
2010
WF10
T & U
1210
WF12
T & U
1206
WF08
T & U
0805
WF06
T & U
0603
WF04
WF02
T & U
0201
T & U
0402
Size Code
(6432)
(5025)
(3225)
(3216)
(2012)
(1608)
(1005)
(0603)
±1.0%,
±0.5%,
±0.1%
Resistance Tolerance
±1.0%, ±0.5%, ±0.25%, ±0.1%, ±0.05%,±0.02%, ±0.01%
±0.05%
±0.01%
Resistance Range
1Ω ~
3MΩ
4.7Ω ~
3MΩ
4.7Ω ~
2.49MΩ
1Ω ~
2.49MΩ
4.7Ω ~
2MΩ
3.9Ω ~
1MΩ
10Ω ~
255KΩ
100Ω ~
12KΩ
TCR
± 50 & 25 ppm/°C
Max. Dissipation at
3/4W
1/2W
1/4W
1/8W
1/10W
1/16W
1/16W
1/32W
Tamb=70°C
Max. Operation Voltage
200V
400V
200V
400V
200V
400V
200V
400V
100V
200V
50V
50V
15V
30V
Max. Overload Voltage
Operating Temperature
100V
100V
- 55~ +155’C
QUICK REFERENCE DATA
Note :
1.
This is the maximum voltage that may be continuously supplied to the resistor element, see “IEC publication
60115-8”
2.
Max. Operation Voltage : So called RCWV (Rated Continuous Working Voltage) is determined by
RCWV = RatedPower ×Resistance Value or Max. RCWV listed above, whichever is lower.
DIMENSIONS:(unit: mm)
WF25T&U
WF20T&U
WF10T&U
WF12T&U
WF08T&U
WF06T&U
WF04T&U
WF02T&U
0.6 ± 0.03
0.3 ± 0.03
Type
L
6.35 ± 0.10 5.00 ± 0.10 3.10 ± 0.10 3.05 ± 0.15 2.00 ± 0.10 1.55 ± 0.10 1.00 ± 0.10
3.20 ± 0.15 2.50 ± 0.15 2.60 ± 0.15 1.55 ± 0.15 1.25 ± 0.10 0.80 ± 0.10 0.50 ± 0.05
W
A
0.60 ± 0.20 0.60 ± 0.20 0.50 ± 0.20 0.40 ± 0.20 0.25 ± 0.20 0.25 ± 0.15 0.30 ± 0.15 0.10 ± 0.05
0.90 ± 0.25 0.60 ± 0.25 0.50 ± 0.20 0.40 ± 0.20 0.40 ± 0.20 0.30 ± 0.15 0.30 ± 0.15 0.15 ± 0.05
0.55 ± 0.10 0.55 ± 0.10 0.55 ± 0.10 0.55 ± 0.15 0.50 ± 0.15 0.45 ± 0.15 0.35 ± 0.05 0.23 ± 0.03
B
T
Protective coat
t
End termination
B
Resistive layer
A
Ceramic Substrate
1001
T
W
L
Page 3 of 10
ASC_WFxxT & U
Mar - 2019