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RH0058L000125AE01 Datasheet(PDF) 4 Page - Vishay Siliconix |
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RH0058L000125AE01 Datasheet(HTML) 4 Page - Vishay Siliconix |
4 / 5 page Document Number: 30201 For technical questions, contact: ww2bresistors@vishay.com www.vishay.com Revision: 11-Jul-07 157 RH, NH Wirewound Resistors, Military, MIL-PRF-18546 Qualified, Type RE, Aluminum Housed, Chassis Mount Vishay Dale MATERIAL SPECIFICATIONS Element: Copper-nickel alloy or nickel-chrome alloy, depending on resistance value Core: Ceramic, steatite or alumina, depending on physical size Encapsulant: Silicone molded construction Housing: Aluminum with hard anodic coating End Caps: Stainless steel Standard Terminals: For RH-5 through RH-50 size terminal finish - Tin/lead is 60/40 Sn/Pb w/Nickel underplate and Lead (Pb)-free is Ni/Pd/Au, finish is on copper clad steel core terminal. For RH-100 and RH-250 terminals are threaded stainless steel. Note: Military (RE) parts are only available with tin/lead finish Part Marking: DALE, model, wattage, value, tolerance, date code NH NON-INDUCTIVE Models of equivalent physical and electrical specifications are available with non-inductive (Aryton-Perry) winding. They are identified by substituting the letter N for R in the model number (NH-5, for example). SPECIAL MODIFICATIONS A number of special modifications to the aluminum housed resistor style are available upon request. Special modifications include: • Terminal configurations and materials • Resistance values and tolerances • Low resistance temperature coefficient (RTC) • Housing configuration • Threaded mounting holes • Preconditioning and other additional testing APPLICABLE MIL SPECIFICATIONS MIL-PRF-18546 is the military specification covering aluminum housed, chassis mount, power resistors. VISHAY RH and NH resistors are listed as qualified on the MIL-PRF-18546 QPL. PERFORMANCE TEST CONDITIONS OF TEST TEST LIMITS Thermal Shock Rated power applied until thermally stable, then a minimum of 15 min at - 55 °C ± (0.5 % + 0.05 Ω) ΔR Short Time Overload 5 x rated power for 5 s ± (0.5 % + 0.05 Ω) ΔR Dielectric Withstanding Voltage 1000 Vrms for RH-5, RH-10 and RH-25; 2000 Vrms for RH-50 4500 Vrms for RH-100 and RH-250; duration 1 min ± (0.2 % + 0.05 Ω) ΔR Temperature 250 °C for 2 h ± (0.5 % + 0.05 Ω) ΔR Moisture Resistance MIL-STD-202 Method 106, 7b not applicable ± (1.0 % + 0.05 Ω) ΔR Shock, Specified Pulse MIL-STD-202 Method 213, 100 g's for 6 ms, 10 shocks ± (0.2 % + 0.05 Ω) ΔR Vibration, High Frequency Frequency varied 10 to 2000 Hz, 20 g peak, 2 directions 6 h each ± (0.2 % + 0.05 Ω) ΔR Load Life 1000 h at rated power, + 25 °C, 1.5 h “ON”, 0.5 h “OFF” ± (1.0 % + 0.05 Ω) ΔR Terminal Strength 30 s, 5 pound pull test for RH-5 and RH-10, 10 pound pull test for other sizes, torque test - 24 pound inch for RH-100 and 32 pound inch for RH-250 ± (0.2 % + 0.05 Ω) ΔR |
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