POWER RESISTORS

RHA Series: Aluminum Housed Resistor

INTRODUCTION

PART NUMBER EXAMPLE

DIMENSIONS (5W to 100W)

•Small size, high power rating and performance

•Excellent space factor

•Strongly resistant to moisture, solvent &

insulation.

•Self-extinguish material is used in molding.

ELECTRICAL CHARACTERISTICS

SPECIFICATIONS

Test Items

Test Conditions

Specifications

Short Time Overload

5X wattage rating, 5 sec.

R±(0.5%+0.05

) max

Moisture Resistance

40°C, moisture 95%, 100Vdc 500hr

R±(0.5%+0.05

) max

Moisture Load Life

40°C, moisture 95%, 1/10 X rated wattage

R±(0.5%+0.05

) max

1000Hr on-off

Load Life

1000Hr on-off

R±(1.5%+0.05

) max

Vibration

1000Hr on-off

R±(0.2%+0.05

) max

Heat Resistance

275°C 2hrs

R±(0.5%+0.05

) max

Dielectric Strength

5 - 25W: 1000V, 50W: 1500V, 100 - 25W: 2500V

R±(0.2%+0.05

) max

Insulation Resistance

500Vdc

1000M min

Terminal Strength

5 - 50W: 30 sec @ 4.5Kg, 100W: 5 sec @ 27Kg

R±(0.2%+0.05

) max

250W: 5 sec @ 36Kg

Part

MIL

Resistance Range ( )

Max Working

Max

Weight

Number

Spec

Inductive

Non-

Voltage (V)

Inductive (N) Inductive

Non-Ind.(N)

(g)

(N)RHA5W

RE60

0.005 ~ 3K

0.1 ~ 1K

120

70

3

(N)RHA10W

RE65

0.02 ~ 6K

0.03 ~ 2.3K

245

180

7

(N)RHA25W

RE70

0.012 ~ 15K

0.02 ~ 5.5K

500

300

15

(N)RHA50W

RE75

0.01 ~ 40K

0.02 ~ 12K

1300

600

33

(N)RHA100W

(N)RHA250W

RE77

RE80

0.4

0.6

~

~

50K

80K

0.12

0.15

~

~

25K

40K

1900

2500

1340

1750

450

800

Part

Dimensions(mm)

Number

L1

L2

L3

L4

A

B

C

D

E

H

h

T

W

b

RHA5

28.6

15.3 ±1 11.3 ±0.8

2 ±0.5

16.5 ±1

12.4±0.8 8.5 ±1

1.3 ±0.1 2.4 ±0.3

8.2 ±1

4±1

1.6 ±1

6.7 ±1

6.2 ±1

RHA10

35

19 ±1

14.3 ±0.8 2.35 ±0.5

20.4 ±1

15.9±0.8

11±1

2.2 ±0.1 2.4 ±0.3

10±1

5±1

2±1

8.0 ±1

8.0 ±1

RHA25

49

27 ±1

18.3 ±0.8 4.35 ±0.5

27.2 ±1

19.8±0.8

14±1

2.2 ±0.1 3.2 ±0.3

14±1

6.5 ±1

2±1

11.0±1

9.9 ±1

RHA50

70

50 ±1

39.7 ±0.8 5.15 ±0.5

29.2 ±1

21.5±0.8

16±1

2.2 ±0.1 3.2 ±0.3

16±1

7±1

2±1

10.0±1

10.8 ±1

RHA100

RHA250

139

See Illustration Above

±2 89 ±0.5 69.8 ±0.2

9.6 ±0.5

71.5 ±0.5 57.1 ±.2

46±0.5

N/A

4.8 ±0.2 44.5 ±0.5

20±0.5

5±0.5 25.0 ±0.5

28.6 ±0.5

RHA100 connector.

N RHA 250W - 10R - J

•For non-inductively wound, use “N” prefix on the part number.

C2E05

REV 2002.05.08

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