Approval Sheet
QUICK REFERENCE DATA
Item
General Specification
WF25F&W WF20F&W WF10F&W WF12F&W WF08F&W WF06F&W WF04F&W
Series No.
Size Code
2512
2010
1210
1206
0805
0603
0402
(6432)
(5025)
(3225)
(3216)
(2012)
(1608)
(1005)
Resistance
Tolerance
±1.0%, ±0.5%, ±0.25%, ±0.1%, ±0.05%, ±0.02%,±0.01%
Resistance Range
10Ω ~
1.5MΩ
10Ω ~
1MΩ
10Ω ~
600KΩ
4.7Ω ~
500KΩ
4.7Ω ~
400KΩ
4.7Ω ~
200KΩ
10Ω ~
100KΩ
TCR
±15 & 10 ppm/°C
Max. Dissipation at
1W
3/4W
200V
400V
2/5W
200V
400V
1/4W
1/8W
150V
300V
1/10W
75V
1/10W
50V
Tamb=70°C
Max. Operation
Voltage
200V
400V
200V
400V
Max. Overload
Voltage
150V
100V
Operating
- 55~ +155’C
Temperature
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)
WF25
WF20
WF10
WF12
WF08
WF06
WF04
Type
6.35 ± 0.10
3.20 ± 0.15
0.60 ± 0.20
0.90 ± 0.25
0.55 ± 0.10
5.00 ± 0.10
2.50 ± 0.15
0.60 ± 0.20
0.60 ± 0.25
0.55 ± 0.10
3.10 ± 0.10
2.60 ± 0.15
0.50 ± 0.20
0.50 ± 0.20
0.55 ± 0.10
3.05 ± 0.15
1.55 ± 0.15
0.40 ± 0.20
0.40 ± 0.20
0.55 ± 0.15
2.00 ± 0.10
1.25 ± 0.10
0.25 ± 0.20
0.40 ± 0.20
0.50 ± 0.15
1.55 ± 0.10
0.80 ± 0.10
0.25 ± 0.15
0.30 ± 0.15
0.45 ± 0.15
1.00 ± 0.10
0.50 ± 0.05
0.30 ± 0.15
0.30 ± 0.15
0.35 ± 0.05
L
W
A
B
t
Protective coat
End termination
t
B
Resistive layer
A
Ceramic Substrate
1001
1001
T
W
L
Page 3 of 10
ASC_WFxxF&W_V03
NOV - 2018