Approval Sheet
QUICK REFERENCE DATA
Item
General Specification
WF12Q WF08Q WF06Q WF04Q
WF25Q
WF20Q
&R
WF10Q
&R
Series No.
&R
WF02Q&R
&R
&R
&R
&R
2512
Size Code
2010
1210
1206
0805
(2012)
0603
(1608)
0402
(1005)
0201
(6432)
(5025)
(3225)
(3216)
(0603)
± 1.0%
± 0.5%
Resistance Tolerance
±1.0%, ±0.5%, ±0.25%, ±0.1%, ±0.05%, ±0.02%,±0.01%
27~
22.1KΩ
27~
12KΩ
1Ω ~
Resistance Range
3MΩ
4.7Ω ~
3MΩ
4.7Ω ~
2.5MΩ
1Ω ~
2.5MΩ
4.7Ω ~
2MΩ
3.9Ω ~
1MΩ
10Ω ~
255KΩ
TCR
± 50 / 25 ppm/°C
±50
±25
Max. Dissipation at
1W
3/4W
2/5W
1/4W
1/8W
1/10W
1/10W
1/20W
Tamb=70°C
Max. Operating Voltage
200V
400V
200V
400V
200V
400V
200V
400V
150V
300V
75V
50V
15V
30V
Max. Overload Voltage
Operating Temperature
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
WF20
WF10
WF12
WF08
WF06
WF04
WF02
Type
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 0.60 ± 0.03
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 0.30 ± 0.03
0.60 ± 0.20 0.60 ± 0.20 0.50 ± 0.20 0.40 ± 0.20 0.25 ± 0.20 0.30 ± 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
L
W
A
B
t
Protective coat
t
End termination
B
Resistive layer
A
Ceramic Substrate
1001
1001
T
W
L
Page 3 of 10
ASC_WFxxQ&R
Mar - 2019