RPS500 Datasheet, PDF (1/4 Pages) Vishay Siliconix – Power Resistors for Mounting onto a Heatsink Thick Film Technology

RPS 500
Vishay Sfernice
Power Resistors for Mounting onto a Heatsink
Thick Film Technology
FEATURES
• High power rating
• High overload capability
• Easy mounting
• Low thermal radiation of the case
This range has been developed specifically for electrical traction applications and is capable of dissipating 500W at +70°C.
The remarkable performance characteristics are evident when used in severe pulse conditions. The copper base allows easy
mounting on the heatsink and provides optimal dissipation conditions.
DIMENSIONS in millimeters
RPS 500D
73
56
26 ± 1
6
57
34
Ø 7.2
Ø 4.2
• Tolerance unless stated: ± 0.2mm
2 M4 USEFUL DEPTH : 8
MECHANICAL SPECIFICATIONS
Mechanical Protection
Insulated case
Substrate
Alumina onto base
of nickel coated
ELECTRICAL SPECIFICATIONS
Resistance Range
Tolerances
0.24 to 1M E24 series
± 1% to ± 10%
Resistive Element
End Connections
Tightening Torque on Connections
Tightening Torque on Heatsink
Weight
copper
Cermet
Screws M4 (M5 on
request)
2Nm
4Nm
250g ± 10%
Power Rating
Chassis mounted
Temperature Coefficient
Standard
Limiting Element Voltage
Dielectric Strength*
500W at 70°C continuous
1000W at 25°C for 10 seconds
± 300ppm/°C < 1Ω
± 150ppm/°C > 1Ω
5kVRMS
L:7kVRMS - H: 12kVRMS
ENVIRONMENTAL
Thermal Resistance
RTH (j-c) 0.11°C/W
Insulation Resistance
Inductance
> 10⁶MΩ
< 50 nH
Temperature Range
Climatic Category
- 55°C to + 125°C _{*MIL STD 202, 1 Minute, 10mA Max}
55/125/56
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For technical questions, contact [e-mail]
Document Number: 50047
Revision 14-Jan-05