Approval Sheet

Page 3 of 11

ASC_WFxxS V01

Aug - 2018

Item

General Specification

Series No.

WF12 Q/R_S

WF08 Q/R_S

WF06 Q/R_S

WF04 T/U_S

Size Code

1206

( 3216 )

0805

( 2012 )

0603

( 1608 )

0402

(1005)

Resistance Tolerance

±1.0%, ±0.5%, ±0.25%, ±0.1%

Resistance Range

1

Ω ~ 30Ω

1

Ω ~ 20Ω

1

Ω ~ 20Ω

1

Ω ~ 20Ω

TCR (ppm/

°C)

±50 ppm/°C/ ±25 ppm/°C

±25 ppm/°C : 4.7Ω~20Ω

±50 ppm/°C : 1Ω ~ 20Ω

±25 ppm/°C : 4.7Ω~20Ω

±50 ppm/°C : 1Ω ~ 20Ω

Max. Dissipation at

°C

1/4W

1/8W

1/10W

1/16W

Max. Operating

Voltage

200V

150V

75V

25V

Max. Overload

Voltage

400V

300V

150V

50V

Operating

Temperature

- 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

Value

Resistance

Power

Rated

RCWV

×

=

or Max. RCWV listed above, whichever is lower.

3.

1

Ω ~ 20Ω for 0603/0402 : TCR ±25 ppm/° is upon requested.

DIMENSIONS :(unit:mm)

Type

WF12Q/R_S

WF08Q/R_S

WF06Q/R_S

WF04T/U_S

L

3.05

±±±± 0.15

2.00

±±±± 0.10

1.55

±±±± 0.10

1.00

±±±± 0.10

W

1.55

±±±± 0.15

1.25

±±±± 0.10

0.80

±±±± 0.10

0.50

±±±± 0.05

A

0.40

±±±± 0.20

0.25

±±±± 0.20

0.25

±±±± 0.15

0.30

±±±± 0.15

B

0.40

±±±± 0.20

0.40

±±±± 0.20

0.30

±±±± 0.15

0.30

±±±± 0.15

t

0.55

±±±± 0.15

0.50

±±±± 0.15

0.45

±±±± 0.15

0.35

±±±± 0.05

Protective coat

Resistive layer

End termination

Ceramic Substrate

t

B

A

T

W

L

1001