C&H Technology RPH100 - Manual (Page 2)

RPH 100
Vishay Sfernice
Power Resistor for Mounting onto a Heatsink
Thick Film Technology
www.vishay.com For technical questions, contact: [email protected] 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
TH
(j-c) 0.55 °C/W
Temperature Range - 55 °C + 125 °C
Climatic Category 55/125/56
65.5
35
26 37 46.7
42.4
16.6 18.6 21.6
4
Ш 4.2
Ш 4.2
V Connections RPH 100
ELECTRICAL SPECIFICATIONS
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 s
Temperature Coefficient
Standard
± 300 ppm/°C < 1
Ω
± 150 ppm/°C > 1 Ω
Limiting Element Voltage U
L
1900 V
RMS
Dielectric Strength MIL STD 202 5 kV
RMS
1 min 10 mA max.
Insulation Resistance > 10 6 M
Ω
Inductance < 0.1 µH