C&H Technology RPS500 User Manual
6121 Baker Road,
Suite 108
Minnetonka, MN 55345
www.chtechnology.com
Phone (952) 933-6190
Fax (952) 933-6223
1-800-274-4284
Thank you for downloading this document from C&H Technology, Inc.
Please contact the C&H Technology team for the following questions -
Technical ● Application ● Assembly ● Availability ● Pricing
Phone – 1-800-274-4284
E-Mail – sales@chtechnology.com
www.chtechnology.com - SPECIALISTS IN POWER ELECTRONIC COMPONENTS AND ASSEMBLIES
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RPS 500
Vishay Sfernice
Power Resistors for Mounting onto a Heatsink
Thick Film Technology
FEATURES
• High power rating: 500 W
• High overload capability up to 2 times rated
Power (see energy curve)
• Heatsink mounting
• Low thermal radiation of the case
This range has been developed specifically for electrical traction applications and is capable of dissipating 500 W 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
RPS 500A
73
56
RoHS
COMPLIANT
6
10.5
26 ± 1
Ø 7.2
60
Ø 21
* Tolerances unless stated: ± 0.2 mm
Ø 4.2
57
33.5
35.8
2 M4 USEFUL
DEPTH: 8
MECHANICAL SPECIFICATIONS
Mechanical Protection Insulated case
Substrate Alumina onto base of
nickel coated copper
Resistive Element
Cermet
End Connections Screws M4 (M5 on
request)
Tightening Torque on Connections 2 Nm
Tightening Torque on Heatsink 4 Nm
Weight 250 g ± 10 %
ENVIRONMENTAL SPECIFICATIONS
Temperature Range - 55 °C to + 125 °C
10.5
6
Ø 21
26 ± 1
Ø 7.2
60
Ø 4.2
57
38.1
ELECTRICAL SPECIFICATIONS
Resistance Range 0.24 to 1M E24 series
Tolerances ± 1 % to ± 10 %
Rated Power (Pr
Chassis Mounted at 70 °C
(Case Temperature)
Thermal Resistance of the
Component
Temperature Coefficient, TC
Limiting Element Voltage U
Dielectric Strength
Insulation Resistance
Inductance < 50 nH
)
70
(1)
500 W continuous load
R
: 0.11 °C/W
th(j-c)
± 300 ppm/°C < 1 Ω
± 150 ppm/°C > 1 Ω
L
MIL STD 202 Method 301:
> 10
5 kV
L: 7 kV
6
MΩ under U
- H: 12 kV
RMS
1 min/10 mA max.
IEC 60115-1
RMS
2 M4 USEFUL
DEPTH: 8
RMS
= 500 V
ins
DC
www.vishay.com For technical questions, contact: sfer@vishay.com Document Number: 50047
1 Revision: 14-Nov-08
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