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RPH 100

Vishay Sfernice

Power Resistor for Mounting onto a Heatsink

Thick Film Technology

www.vishay.com For technical questions, contact: sfer@vishay.com

Document Number: 50046

1 Revision: 10-Oct-08

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.

DIMENSIONS in millimeters

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 R

(j-c) 0.55 °C/W

Temperature Range - 55 °C + 125 °C

Climatic Category 55/125/56

65.5

26 37

46.7

42.4

16.6

18.6 21.6

Ø 4.2

V Connections

RPH 100

ELECTRICAL SPECIFICATIONS

Resistance Range

0.092

to 1 M

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 s

Temperature Coefficient

Standard

± 300 ppm/°C < 1

± 150 ppm/°C > 1

Limiting Element Voltage

1900 V

RMS

Dielectric Strength MIL STD 202

5 kV

RMS

1 min 10 mA max.

Insulation Resistance

> 10

Inductance

< 0.1 µH

1 2 3 4 5 6

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