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RH00515R00125BE02 Datasheet(PDF) 3 Page - Vishay Siliconix

Part # RH00515R00125BE02
Description  Wirewound Resistors, Military, MIL-PRF-18546 Qualified, Type RE, Aluminum Housed, Chassis Mount
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Manufacturer  VISHAY [Vishay Siliconix]
Direct Link  http://www.vishay.com
Logo VISHAY - Vishay Siliconix

RH00515R00125BE02 Datasheet(HTML) 3 Page - Vishay Siliconix

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www.vishay.com
For technical questions, contact: ww2bresistors@vishay.com
Document Number: 30201
156
Revision: 11-Jul-07
RH, NH
Vishay Dale
Wirewound Resistors, Military, MIL-PRF-18546 Qualified,
Type RE, Aluminum Housed, Chassis Mount
POWER RATING
Vishay RH resistor wattage ratings are based on mounting to the following heat sink:
RH-5 and RH-10:
4" x 6" x 2" x 0.040" thick aluminum chassis (129 sq. in. surface area)
RH-25:
5" x 7" x 2" x 0.040" thick aluminum chassis (167 sq. in. surface area)
RH-50:
12" x 12" x 0.059" thick aluminum panel (291 sq. in. surface area)
RH-100 and RH-250:
12" x 12" x 0.125" thick aluminum panel (294 sq. in. surface area)
AMBIENT TEMPERATURE DERATING
Derating is required for ambient temperatures above 25 °C, see the following graph.
Curves A, B, C apply to operation of unmounted resistors. Curve D applies to all types when mounted to specified heat sink.
A = RH-5 and RH-10 size resistor, unmounted
B = RH-25 size resistor, unmounted
C = RH-50, RH-100 and RH-250 size resistor, unmounted
D = All types mounted to recommended aluminum heat sink
REDUCED HEAT SINK DERATING:
Derating is also required when recommended heat sink
area is reduced.
A = RH-5 and RH-10 size resistor
B = RH-25 size resistor
C = RH-50, RH-100 and RH-250 size resistor
TECHNICAL SPECIFICATIONS
PARAMETER
UNIT
RH RESISTOR CHARACTERISTICS
Temperature Coefficient
ppm/°C
± 100 for 0.1
Ω to 0.99 Ω, ± 50 for 1 Ω to 9.9 Ω, ± 20 for 10 Ω and above
Dielectric Withstanding Voltage
VAC
1000 for RH/5, RH-10 and RH/25, 2000 for RH/50, 4500 for RH/100 and RH/250
Short Time Overload
-
5 × rated power for 5 s
Maximum Working Voltage
V
(
P x R)1/2
Insulation Resistance
Ω
10 000 M
Ω minimum dry, 1000 MΩ minimum after moisture test
Terminal Strength
lb
5 minimum for RH-5 and RH-10, 10 minimum for all others
Solderability
-
MIL-PRF-18546 type - meets requirements of ANSI J-STD-002
Operating Temperature Range
°C
- 55 to + 250
Derating
- 55 - 50
0
50
150
250
AMBIENT TEMPERATURE IN
°C
25
120
A
C
D
B
0
20
40
60
80
100
100
90
80
70
60
50
40
30
20
10
0
020
40
60
80100
% OF RECOMMENDED HEAT SINK AREA
Heat Sink Derating
A
C
B


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