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RH00515R00125AE01 Datasheet(PDF) 3 Page - Vishay Siliconix |
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RH00515R00125AE01 Datasheet(HTML) 3 Page - Vishay Siliconix |
3 / 5 page 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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