Approval Sheet
QUICK REFERENCE DATA
Item
General Specification
Series No.
Size Code
WF25
F&W_Q
2512
WF20
F&W_Q
2010
WF10
WF12
F&W_Q
1206
WF08
WF06
WF04
F&W_Q
0402
F&W_Q
1210
F&W_Q
0805
F&W_Q
0603
(6432)
(5025)
(3225)
(3216)
(2012)
(1608)
(1005)
Resistance Tolerance
Resistance Range
TCR
±1.0%, ±0.5%, ±0.25%, ±0.1%, ±0.05%,0.02%
10Ω ~
1.5MΩ
10Ω ~
1MΩ
10Ω ~
600KΩ
4.7Ω ~
500KΩ
4.7Ω ~
400KΩ
4.7Ω ~
150KΩ
10Ω ~
60KΩ
±15 / 10 ppm/°C
Max. Dissipation at
1W
3/4W
2/5W
1/4W
1/8W
1/10W
1/10W
Tamb=70°C
Max. Operation Voltage
200V
400V
200V
400V
200V
400V
200V
150V
300V
75V
50V
Max. Overload Voltage
Operating Temperature
400V
150V
100V
- 55~ +155’C
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_Q
6.35 ± 0.10
3.20 ± 0.15
0.60 ± 0.20
0.90 ± 0.25
0.55 ± 0.10
WF20_Q
5.00 ± 0.10
2.50 ± 0.15
0.60 ± 0.20
0.60 ± 0.25
0.55 ± 0.10
WF10_Q
3.10 ± 0.10
2.60 ± 0.15
0.50 ± 0.20
0.50 ± 0.20
0.55 ± 0.10
WF12_Q
3.05 ± 0.15
1.55 ± 0.15
0.40 ± 0.20
0.40 ± 0.20
0.55 ± 0.15
WF08_Q
2.00 ± 0.10
1.25 ± 0.10
0.25 ± 0.20
0.40 ± 0.20
0.50 ± 0.15
WF06_Q
1.55 ± 0.10
0.80 ± 0.10
0.25 ± 0.15
0.30 ± 0.15
0.45 ± 0.15
WF04_Q
1.00 ± 0.10
0.50 ± 0.05
0.30 ± 0.15
0.30 ± 0.15
0.35 ± 0.05
Type
L
W
A
B
t
Protective coat
t
End termination
B
A
Resistive layer
Ceramic Substrate
1001
T
W
L
Page 3 of 10
ASC_WFxxF &W_Q
Mar- 2018