Document Number: 50046

Revision 30-May-06

www.vishay.com

24

RPH 100

Vishay Sfernice

For technical questions, contact sfer@vishay.com

Power Resistor for Mounting onto a Heatsink

Thick Film Technology

FEATURES

• High power rating

• Low thermal radiation of the case

• Wide ohmic value range

• Easy mounting

• High overload capabilities

• Reduced size and weight

This new style has been developed as an extension to RCH range. Through the use of thick film technology, a non-inductive

solution for power resistors is available which are rated up to 100 W at + 25 °C. The terminations position prevents any risk of

an electrical arc to the heatsink.

This resistor series can replace and offer advantages to standard wirewound devices.

V Connections

65,5

35

26 37 46,7

42,4

16,6 18,6

21,6

4

ø 4,2

ø 4,2

MECHANICAL SPECIFICATIONS

Mechanical Protection

Insulated case

Substrate

Alumina on metallic

base of nickel coated

aluminum

Resistive Element

Cermet

End Connections

V connections: screws M4 x 6

Tightening Torque Connections

1 Nm

Tightening Torque Heatsink

3 Nm

Weight

60 g

ENVIRONMENTAL SPECIFICATIONS

Thermal Resistance

Temperature Range

- 55 °C + 125 °C

Climatic Category

55/125/56

RPH 100

DIMENSIONS in millimeters

Resistance Range

0.092

Ω to 1 MΩ E24 series

Tolerances

± 1 % to ± 10 %

Power Rating:

Continuous

100 W at 25 °C

chassis mounted 0.45°C/W

10 W at 25 °C

Free air

Momentary

400 W at 25 °C for 5 seconds

Temperature Coefficient

Standard

± 300 ppm/°C < 1

Ω

± 150 ppm/°C > 1

Ω

Limiting Element Voltage

Dielectric Strength MIL STD 202

Insulation Resistance

> 10

Inductance

< 0.1 µH

ELECTRICAL SPECIFICATIONS

RoHS

COMPLIANT