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Technical Specifcations

Electrical Performance

100

80

60

40

20

0

75

125 175

325

275

225

25

375

Power Derating Curve

-55

V

U

d

38±3

L

38±3

D

Type

MIL

-

R-26E

Power Rating

(W)

Max. Working

Voltage (V)

Resistance Range (Ω)

Dimensions (mm)

U

V

U

V

0.1% 0.25% 0.5% 1% 2% 3% 5% L±0.81 D±0.81 d±0.1

KNP-R1/4

-

0.40

-

20

-

10~950

1~3.4K

6.35

1.98

0.51

KNP-R1/2 RW70 0.75

-

29

-

10~1.3K

1~4.9K

7.92

1.98

0.51

KNP-R1A

-

1.00

-

53

-

1~2.7K

0.1~10.4K

10.31

2.36

0.64

KNP-R1

RW69 1.10

-

62

-

1~4.0K

0.1~15K

13.49

2.36

0.64

KNP-R2A

-

2.50

3.25 138

157

1~8.6K

0.01~32.3K

12.70

5.33

0.81

KNP-R2

RW79 3.00

3.75 135

148

1~5K

0.01~2K

13.49

4.06

0.81

KNP-R3A

-

3.00

3.75 135

148

1~6.5K

0.01~34.5K

14.27

5.33

0.81

KNP-R3

-

3.25

4.75 185

220

1~11.4K

0.01~42.1K

20.62

5.33

1.02

KNP-R4

RW67 4.00

5.50 210

250

1~12.7K

0.01~47.1K

15.88

7.62

1.02

KNP-R5

RW74 5.00

6.50 330

376

0.5~24.5K

0.01~51K

22.22

7.62

1.02

KNP-R7

RW68 7.00

9.00 504

576

0.5~41.4K

0.01~75K

30.94

9.52

1.02

KNP-R10 RW78 10.00

799

911

0.5~71.3K

0.01~82K

45.21

9.52

1.02

Temperature Coefficient: 1 Ω and below ± 150 ppm/°C, 1 Ω to 9.9 Ω ± 100 ppm/°C, 10 Ω and above ± 100 ppm/°C,

(50 ppm/°C on request)

Test Items

Test Method

Specifications

Short Time Overload

2.5 times of rated voltage 5 sec.

ΔR±(2%+0.05Ω)

Rated Load

Rated wattage 30 minutes.

ΔR±(1%+0.05Ω)

Voltage Withstanding

500VAC 1 minute.

ΔR±(1%+0.05Ω)

Insulation Resistance

500V

20MΩ

Temp. Cycle

-20°C ~ 85°C 5 cycles

ΔR±(1%+0.05Ω)

Soldering After Resistance

235°C for 3 sec

ΔR±(0.5%+0.05Ω)

Incombustibility

16 times of rated wattage for 5 min. Not flamed

Load Life

+25°C, 1.5Hrs on ~ 0.5Hrs

off cycle, 1000 Hrs.

U: ΔR±(1%+0.05Ω)

V: ΔR±(3%+0.05Ω)

Version 2010

KNP-R Power Wirewound Resistors

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