Riedon Inc.

300 Cypress Avenue

Alhambra CA 91801

(626) 284-9901

(626) 284-1704

www.riedon.com

04/14

0

20

40

60

80

100

120

25

50

85

100

115

130

Temperature of the backplate (°C)

0.5%

0.1%

0.2%

Temperature Coefficient

Derating

Precision Power Shunt Resistors

Power Rating Notes -

The FPR Series Resistors must be attached to a suitable heat-

sink. The maximum internal resistor temperature is 130°C.

To specify an appropriate heatsink use the following formula :

Where: R

q

R

q

T

T

P = Power Through Resistor ( W )

( *

)

R

P

T

P R

T

H

MAX

R

A

=

-

-

H

H