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PDF RPS250 Data sheet ( Hoja de datos )
| Número de pieza | RPS250 | |
| Descripción | Power Resistor for Mounting onto a Heatsink Thick Film Technology | |
| Fabricantes | Vishay Siliconix | |
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RPS 250
Vishay Sfernice
Power Resistor for Mounting onto a Heatsink
Thick Film Technology
FEATURES
• High power rating: 250 W
• High overload capability up to 4 times Nominal
Power (see energy curve)
• Easy mounting
• Low thermal radiation of the case
RoHS
COMPLIANT
Developed for specific applications such as railroad electrical traction, this series can bear short overloads as high as fifteen times
the nominal power. Designed to be mounted onto a heatsink, these power resistors exhibit remarkable characteristics.
DIMENSIONS in millimeters
RPS 250D
73
56
26 ± 1
16.5
57
34
• Tolerance unless stated: ± 0.2 mm
Ø 7.2
Ø 4.2
2 M4 USEFUL DEPTH: 8
MECHANICAL SPECIFICATIONS
Mechanical Protection
Insulated case
Substrate
Alumina onto
aluminum base
Resistive Element
Cermet
End Connections
Screws M4, (M5 on
request)
Tightening Torque on connections 2 Nm
Weight
170 g ± 10 %
ENVIRONMENTAL SPECIFICATIONS
Thermal Resistance
Temperature Range
Climatic Category
RTH (j-c) 0.22 °C/W
- 55 °C + 125 °C
55/125/56
ELECTRICAL SPECIFICATIONS
Resistance Range
0.24 Ω to 1M E24 series
Tolerances
± 1 % to ± 10 %
Power Rating chassis mounted
250 W
1000 W
at 50 °C continuous
at 25 °C for 10 seconds
Temperature Coefficient
Standard
± 250 ppm/°C < 1
± 150 ppm/°C > 1
Limiting Element Voltage
5 kVRMS
Dielectric Strength
MIL STD 202 (301), 1 minute, 10 mA Max
Insulation Resistance
L connections 7 kVRMS
H connections 12 kVRMS
> 106 MΩ
Inductance
< 50 nH
Capacitance Resistor/
ground
< 40 pF
< 120 pF
Document Number: 50007
Revision: 08-Jun-06
DataSheet4 U .com
For technical questions, contact: [email protected]
www.vishay.com
31
1 page | ||
| Páginas | Total 4 Páginas | |
| PDF Descargar | [ Datasheet RPS250.PDF ] | |
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