Approval Sheet

Page 3 of 10

ASC_WFxxC

MAR 2018

QUICK REFERENCE DATA

Item

General Specification

Series No.

WF25C

WF20C

WF10C

WF12C

WF08C

WF06C

WF04C

Size Code

2512

(6432)

2010

(5025)

1210

(3225)

1206

(3216)

0805

(2012)

0603

(1608)

0402

(1005)

Resistance

Tolerance

±1.0%, ±0.5%, ±0.25%, ±0.1%, ±0.05% , ±0.02%,±0.01% *

Resistance Range

4.7

Ω ~

600K

Ω

4.7

Ω ~

360K

Ω

4.7

Ω ~

150K

Ω

4.7

Ω ~

120K

Ω

4.7

Ω ~

80K

Ω

4.7

Ω ~

40K

Ω

10

Ω ~

8K

Ω

TCR

±2 ppm/°C

Max. Dissipation at

°C

1W

3/4W

2/5W

1/4W

1/8W

1/10W

1/10W

Max. Operation

Voltage

200V

200V

200V

200V

150V

75V

50V

Max. Overload

Voltage

400V

400V

400V

400V

300V

150V

100V

Operating

Temperature

- 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

Value

Resistance

Power

Rated

RCWV

×

=

or Max. RCWV listed above, whichever is lower.

DIMENSIONS:(unit:mm)

Type

WF25C

WF20C

WF10C

WF12C

WF08C

WF06C

WF04C

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

W

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

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

B

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

t

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

1001

Protective coat

Resistive layer

End termination

Ceramic Substrate

t

B

A

T

W

L

1001