ESS VISHAY | Alldatasheet

Document overview

  • Manufacturer or author: Provided By alldatasheet.com(free datasheet download site)
  • PDF pages: 2

Technical content

ESS, ESW, ESN, EGS, EGW, EGN Vishay Dale www.vishay.com 126 Document Number 30203 Revision 23-Sep-02 For technical questions, contact ww2bresistors@vishay.com Wirewound Resistors, Military/Established Reliability MIL-PRF-39007 Qualified, Type RWR, R Level

FEATURES

  • High temperature silicone coated
  • Complete welded construction
  • Qualified to MIL-PRF-39007
  • Available in non-inductive styles (types ESN and EGN) with Aryton-Perry winding for lowest reactive components
  • “S” level failure rate available

ORDERING INFORMATION

M FAILURE RATE RWR74 MILITARY TYPE S TERMINAL WIRE AND WINDING 49R9 RESISTANCE F TOLERANCE STANDARD ELECTRICAL SPECIFICATIONS MIL-PRF-39007 POWER RATING WEIGHT P25°C (Typical) MODEL TYPE W ± 0.1% ± 0.5 & ± 1% g EGS-1-80 RWR81S 1 0.499 - 1k 0.1 - 1k 0.21 EGW-1 RWR81W 1 0.499 - 1k 0.1 - 1k 0.21 EGN-1-80 RWR81N 1 0.499 - 499 0.1 - 499 0.21 EGN-1-10 RWR81Z 1 0.499 - 499 0.1 - 499 0.21 EGN-2 RWR82N 1.5 0.499 - 649 0.1 - 649 0.23 EGN-2-10 RWR82Z 1.5 0.499 - 649 0.1 - 649 0.23 MILITARY RANGE Ω

www.vishay.com 127 ESS, ESW, ESN, EGS, EGW, EGN Vishay Dale Document Number 30203 Revision 23-Sep-02 For technical questions, contact ww2bresistors@vishay.com DIMENSIONS B 1.50 [38.10]* Min.A C MIL-PRF-39007 DIMENSIONS - in inches [millimeters] MODEL A B C MATERIAL SPECIFICATIONS Element: Copper-nickel alloy or nickel-chrome alloy, depending on resistance value Core: Ceramic, Beryllium oxide, steatite or alumina, depending on power requirement Coating: Special high temperature silicone Terminal and Winding: The terminal and the winding are identified by a letter symbol in the military type designation. Military Symbol: S = Solderable, inductively wound W = Weldable, inductively wound N = Solderable, non-inductively wound Z = Weldable, non-inductively wound Terminals: Solderable - Tinned Copperweld Weldable - Bare Nickel per MIL-STD-1276, Type N-1 End Caps: Stainless Steel Part Marking: Source Code, JAN, Military PIN, Date/Lot Code APPLICABLE MIL-SPECIFICATION MIL-PRF-39007: This is the military specification covering axial lead established reliability power wirewound resistors. Vishay Dale ESS, ESW, EGS, EGW, ESN and EGN resistors meet or exceed the electrical, environmental and dimensional requirements of this specification. PERFORMANCE TEST CONDITIONS OF TEST TEST LIMITS Thermal Shock MIL-STD-2.2, Method 303 ± (0.2% + 0.005Ω) ∆R Short Time Overload 5 x rated power (RWR71, 80, 81, 89, 82), 10 x rated power (RWR74, 78, 84) for 5 seconds ± (0.2% + 0.005Ω) ∆R Dielectric Withstanding Voltage 500Vrms (RWR80, 81, 82), 1000Vrms (RWR71, 74, 78, 84, 89), 1 minute duration ± (0.1% + 0.005Ω) ∆R Low Temperature Storage - 65 °C for 24 hours ± (0.1% + 0.005Ω) ∆R High Temperature Exposure 250 °C for 2000 hours ± (1.0% + 0.005Ω) ∆R* Moisture Resistance MIL-STD-202, Method 106 ± (0.2% + 0.005Ω) ∆R Shock, Specified Pulse MIL-STD-202, Method 205, Condition C ± (0.1% + 0.005Ω) ∆R Vibration, High Frequency MIL-STD-202, Method 204, Condition D ± (0.1% + 0.005Ω) ∆R Load Life 2000 hours at rated power, + 25 °C, 1.5 hours “ON”, 0.5 hours “OFF” ± (0.5% + 0.005Ω) ∆R Extended Life 10,000 hours at rated power, + 25 °C, 1.5 hours “ON”, 0.5 hours “OFF” ± (1.0% + 0.005Ω) ∆R MIL-STD-202, Method 211, Condition A and C 5 pound (RWR80, 81, 82), 10 pound (RWR71, 74, 78, 84, 89) TECHNICAL SPECIFICATIONS PARAMETER UNIT ESS, ESW, ESN, EGS, EGW, EGN RESISTOR CHARACTERISTICS Temperature Coefficient ppm/ °C ± 650 for 0.1Ω to 0.499Ω, ± 400 for 0.505Ω to 1Ω, ± 50 for 1.1Ω to 10Ω, ± 20 for 10Ω and above Dielectric Withstanding Voltage V AC 500 minimum for 2 watt and smaller, 1000 minimum for 3 watt and larger Short Time Overload - 5 x rated power for 5 seconds for 3 watt size and smaller, 10 x rated power for 5 seconds for 5 watt size and greater Maximum Working Voltage V (P x R) 1/2 Insulation Resistance Ω 1000 Megohm minimum dry, 100 Megohm minimum after moisture test Terminal Strength lb 5 minimum for 2 watt and smaller, 10 minimum for 3 watt and larger Solderability - Meets requirements of ANSI J-STD-002 Operating Temperature Range °C - 65/+ 250 Wirewound Resistors, Military/Established Reliability MIL-PRF-39007 Qualified, Type RWR, R Level *For resistance values above 100 ohms, Test Limit is ± 1.0%. Terminal Strength ± (0.1% + 0.005Ω) ∆R *On some standard reel pack methods, the leads may be trimmed to a shorter length than shown. Derating -65-50 0 50 150 250 AMBIENT TEMPERATURE IN °C RATED POWER IN % 100 120