RHA

www.vishay.com

Vishay Dale

Revision: 22-Feb-2022

2

Document Number: 30406

For technical questions, contact: ww2aresistors@vishay.com

THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT

ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT www.vishay.com/doc?91000

DIMENSIONS in inches [millimeters]

POWER RATING

Vishay RH resistor wattage ratings are based on mounting to the following heat sink:

GLOBAL

MODEL

DIMENSIONS in inches [millimeters]

AB

C

D

E

F

G

H

J

K

L

M

N

P

RHA005

0.444

± 0.005

[11.28

± 0.127]

0.490

± 0.005

[12.45

± 0.127]

0.600

± 0.030

[15.24

± 0.787]

1.125

± 0.062

[28.58

± 1.57]

0.334

± 0.015

[8.48

± 0.381]

0.646

± 0.015

[16.41

± 0.381]

0.320

± 0.015

[8.13

± 0.381]

0.065

± 0.010

[1.65

± 0.254]

0.133

± 0.010

[3.38

± 0.254]

0.078

± 0.010

[1.98

± 0.254]

0.093

± 0.005

[2.36

± 0.127]

0.078

± 0.015

[1.98

± 0.381]

0.050

± 0.005

[1.27

± 0.127]

0.266

± 0.062

[6.76

± 1.57]

RHA010

0.562

± 0.005

[14.27

± 0.127]

0.625

± 0.005

[15.88

± 0.127]

0.750

± 0.031

[19.05

± 0.787]

1.375

± 0.062

[34.93

± 1.57]

0.420

± 0.015

[10.67

± 0.381]

0.800

± 0.015

[20.32

± 0.381]

0.390

± 0.015

[9.91

± 0.381]

0.075

± 0.010

[1.91

± 0.254]

0.165

± 0.010

[4.19

± 0.254]

0.093

± 0.010

[2.36

± 0.254]

0.094

± 0.005

[2.39

± 0.127]

0.102

± 0.015

[2.59

± 0.381]

0.085

± 0.005

[2.16

± 0.127]

0.312

± 0.062

[7.92

± 1.57]

RHA025

0.719

± 0.005

[18.26

± 0.127]

0.781

± 0.005

[19.84

± 0.127]

1.062

± 0.031

[26.97

± 0.787]

1.938

± 0.062

[49.23

± 1.57]

0.550

± 0.015

[13.97

± 0.381]

1.080

± 0.015

[27.43

± 0.381]

0.546

± 0.015

[13.87

± 0.381]

0.075

± 0.010

[1.91

± 0.254]

0.231

± 0.010

[5.87

± 0.254]

0.172

± 0.010

[4.37

± 0.254]

0.125

± 0.005

[3.18

± 0.127]

0.115

± 0.015

[2.92

± 0.381]

0.085

± 0.005

[2.16

± 0.127]

0.438

± 0.062

[11.13

± 1.57]

RHA050

1.562

± 0.005

[39.67

± 0.127]

0.844

± 0.005

[21.44

± 0.127]

1.968

± 0.031

[49.99

± 0.787]

2.781

± 0.062

[70.64

± 1.57]

0.630

± 0.015

[16.00

± 0.381]

1.140

± 0.015

[28.96

± 0.381]

0.610

± 0.015

[15.49

± 0.381]

0.088

± 0.010

[2.24

± 0.254]

0.260

± 0.010

[6.60

± 0.254]

0.196

± 0.010

[4.98

± 0.254]

0.125

± 0.005

[3.18

± 0.127]

0.107

± 0.015

[2.72

± 0.381]

0.085

± 0.005

[2.16

± 0.127]

0.438

± 0.062

[11.13

± 1.57]

RHA005 and RHA010: 4" x 6" x 2" x 0.040" thick aluminum chassis (129 sq. in. surface area)

RHA025:

5" x 7" x 2" x 0.040" thick aluminum chassis (167 sq. in. surface area)

RHA050:

12" x 12" x 0.059" thick aluminum panel (291 sq. in. surface area)

FREE AIR POWER RATING

GLOBAL MODEL

RHA005

RHA010

RHA025

RHA050

W at 25 °C

4.5

7.5

12.5

20

P

D

C

A

L

M

N

J

F

E

H

G

K

B