RW Military www.vishay.com Vishay Dale Wirewound Resistors, Military, MIL-PRF-26 Qualified, Type RW, Precision Power, Silicone Coated, Axial Lead FEATURES * * * * DESIGN SUPPORT TOOLS High temperature coating (> 350 C) Complete welded construction Qualified to MIL-PRF-26 Excellent stability in operation (typical shift < 0.5 %) resistance click logo to get started Models Available STANDARD ELECTRICAL SPECIFICATIONS VISHAY POWER RATING POWER RATING MILITARY REFERENCE P25 C W P25 C W MODEL MODEL CHARACTERISTIC U CHARACTERISTIC V RESISTANCE RANGE RESISTANCE RANGE RESISTANCE RANGE WEIGHT (typical) g 0.1 % 0.5 %, 1 % 5 %, 10 % RW81 G001...380 1.0 - 0.499 to 1K 0.1 to 1K - RW70 RS01A...300 1.0 - 0.499 to 2.74K 0.1 to 2.74K - 0.34 RW80 G003...380 2.0 - 0.499 to 2.74K 0.1 to 2.74K - 0.34 RW79 RS02B...300 3.0 - 0.499 to 6.49K 0.1 to 6.49K - 0.70 RW69 RS02C...23 - 3.0 - - 0.1 to 2.0K 1.6 RW74 RS005...69 5.0 - 0.499 to 24.3K 0.1 to 24.3K - 4.2 RW67 RS005...70 - 6.5 - - 0.1 to 8.2K 4.2 RW78 RS010...38 10.0 - 0.499 to 71.5K 0.1 to 71.5K - 9.0 RW68 RS010...39 - 11.0 - - 0.1 to 20K 9.0 0.20 Note * RW67, RW68, RW69 available tolerance for these MIL parts is 5 % for 1 and above, 10 % below 1 TECHNICAL SPECIFICATIONS PARAMETER Temperature Coefficient UNIT RW RESISTOR CHARACTERISTICS ppm/C 20 for 10 and above, 50 for 1 to 9.9 , 90 for below 1 Maximum Working Voltage V (P x R)1/2 Insulation Resistance 1000 M minimum dry, 100 M minimum after moisture test Solderability Operating Temperature Range - MIL-PRF-26 type - meets requirements of ANSI J-STD-002 C Characteristic U = -65 to +250, characteristic V = -65 to +350 MILITARY PART NUMBER INFORMATION Military Part Numbering example: RW80U49R9FB12 R W 8 0 U 4 9 R 9 F B 1 2 MIL TYPE CHARACTERISTIC RESISTANCE VALUE TOLERANCE CODE PACKAGING CODE RW67 RW68 RW69 RW70 RW74 RW78 RW79 RW80 RW81 U = max. hotspot 275 C V = max. hotspot 350 C U Characteristic 3 digit significant figure, followed by a multiplier 49R9 = 49.9 1000 = 100 1001 = 1000 Tolerance for "U" characteristic only B = 0.1 % D = 0.5 % F = 1.0 % B12 = bulk pack S70 = tape/reel (smaller than 5 W) S73 = tape/reel (5 W and higher) V Characteristic 2 digit significant figure, followed by a multiplier 4R7 = 4.7 102 = 1000 Tolerance for "V" characteristic is not listed and is as specified by MIL-PRF-26 Revision: 15-Nov-17 Document Number: 30281 1 For technical questions, contact: ww2aresistors@vishay.com THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT www.vishay.com/doc?91000 RW Military www.vishay.com Vishay Dale DIMENSIONS in inches [millimeters] DIMENSIONS in inches [millimeters] MILITARY MODEL 1.50 [38.10] (1) min. A B (1) (max.) A C D RW81 0.250 0.031 [6.35 0.787] 0.281 0.085 0.020 0.020 0.002 [7.14] [2.16 0.508] [0.508 0.051] RW70 RW80 0.406 0.031 [10.31 0.787] 0.437 0.094 0.031 0.020 0.002 [11.10] [2.39 0.787] [0.508 0.051] RW79 0.560 0.062 [14.22 1.57] 0.622 0.187 0.031 0.032 0.002 [15.80] [4.75 0.787] [0.813 0.051] MATERIAL SPECIFICATIONS RW69 0.500 0.062 [12.70 1.57] 0.593 0.218 0.031 0.032 0.002 [15.06] [5.54 0.787] [0.813 0.051] Element: copper-nickel alloy or nickel-chrome alloy, depending on resistance value RW74 RW67 0.875 0.062 [22.23 1.57] 1.0 0.312 0.031 0.040 0.002 [25.4] [7.92 0.787] [1.02 0.051] Core: ceramic, steatite or alumina, depending on physical size RW78 1.78 0.062 [45.21 1.57] 1.87 0.375 0.031 0.040 0.002 [47.50] [9.53 0.787] [1.02 0.051] Coating: special high temperature silicone RW68 D B C Note (1) On some standard reel pack methods, the leads may be trimmed to a shorter length than shown Standard Terminals: 60/40 Sn/Pb coated Copperweld(R) End Caps: stainless steel 1.875 + 0.063 - 0.125 1.94 0.344 0.094 0.040 0.002 [47.63 + 1.60 - 3.18] [49.28] [8.74 2.39] [1.02 0.051] Note (1) B (max.) dimension is clean lead to clean lead MODELS: RW70, RW74, RW78, RW79, RW80, RW81 MODELS: RW67, RW68, RW69 Characteristic U Characteristic V Tolerance code: B = 0.1 %, D = 0.5 %, F = 1 % Tolerance code: not listed Example Example Dale Dale RW80U Model RW68 Model Characteristic, value RATED POWER IN % DERATING MARKING 120 100 80 60 CHAR. V 1001F Characteristic, value V100 0703 Date code M0202 Date code 40 20 0 -65 -50 CHAR. U 0 50 25 150 250 350 AMBIENT TEMPERATURE IN C PERFORMANCE TEST CONDITIONS OF TEST TEST LIMITS CHARACTERISTIC U CHARACTERISTIC V Thermal Shock Rated power applied until thermally stable, then a minimum of 15 min at -55 C (0.2 % + 0.05 ) R (2.0 % + 0.05 ) R Short Time Overload 5x rated power (3.75 W and smaller), 10 x rated power (4 W and larger) for 5 s (0.2 % + 0.05 ) R (2.0 % + 0.05 ) R Dielectric Withstanding Voltage 500 VRMS min. (RW70, RW80, RW81), 1000 VRMS for all others, duration of 1 min (0.1 % + 0.05 ) R (0.1 % + 0.05 ) R Low Temperature Storage -65 C for 24 h (0.2 % + 0.05 ) R (2.0 % + 0.05 ) R High Temperature Exposure 250 h at: U = +250 C, V = +350 C (0.5 % + 0.05 ) R (2.0 % + 0.05 ) R Moisture Resistance MIL-STD-202 Method 106, 7b not applicable (0.2 % + 0.05 ) R (2.0 % + 0.05 ) R Shock, Specified Pulse MIL-STD-202 Method 213, 100 g's for 6 ms, 10 shocks (0.1 % + 0.05 ) R (0.2 % + 0.05 ) R Vibration, High Frequency Frequency varied 10 Hz to 2000 Hz, 20 g peak, 2 directions 6 h each (0.1 % + 0.05 ) R (0.2 % + 0.05 ) R Load Life 2000 h at rated power, +25 C, 1.5 h "ON", 0.5 h "OFF" (0.5 % + 0.05 ) R (3.0 % + 0.05 ) R Terminal Strength Pull test 5 s to 10 s, 5 lb (RW70, RW80, RW81), 10 lb for all others; torsion test - 3 alternating directions, 360 each (0.1 % + 0.05 ) R (1.0 % + 0.05 ) R Revision: 15-Nov-17 Document Number: 30281 2 For technical questions, contact: ww2aresistors@vishay.com THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. 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ALL RIGHTS RESERVED Revision: 08-Feb-17 1 Document Number: 91000 Mouser Electronics Authorized Distributor Click to View Pricing, Inventory, Delivery & Lifecycle Information: Vishay: RW79U47R0FB12 RW79U2001BB12 RW70U3320FB12 RW67V562B12 RW69VR27B12 RW70U47R5FB12 RW69V2R0B12 RW67V5R1B12 RW69V1R8B12 RW69V2R0 RW69V431B12 RW69V5R1B12 RW69VR56B12 RW70U16R0FB12 RW70U2R00FB12 RW74U2R10FB12 RW74U49R9FB12 RW74UR470FB12 RW74UR800FB12 RW79U2000FB12 RW79U5R00FB12 RW81U1000FB12 RW80U10R0FB12 RW80U2201FB12 RW80U3480BB12 RW80U6500FB12 RW81U4R99FB12 RW70U3240FB12 RW69V120B12 RW80U4990FB12 RW69V5R0B12 RW70UR150FB12 RW80UR500FB12 RW69VR10B12 RW67V500B12 RW79UR200FB12 RW70U2001FB12 RW67V4R7B12 RW80U33R2FB12 RW81U2R20FB12 RW68V500B12 RW81U4750FB12 RW69V6R8B12 RW68V250B12 RW69V4R7B12 RW80U5620FB12 RW78U1002FB12 RW80U1R00FB12 RW69V501B12 RW69V621B12 RW69V560B12 RW69V151B12 RW68V151B12 RW69V390B12 RW80U31R0FB12 RW68V102B12 RW69V8R2B12 RW80U1001BB12 RW80U1001FB12 RW69V680B12 RW80U1R40FS70 RW69V7R5B12 RW69V821B12 RW69VR10S70 RW80U1500FB12 RW69V401B12 RW80U2401FS70 RW78U6982FB12 RW80U2741FB12 RW80U2000FB12 RW80UR499FB12 RW69VR24S70 RW69V820B12 RW68V4R0B12 RW69V681B12 RW69V5R6B12 RW69V391B12 RW69V150B12 RW69V561B12 RW69V9R1B12 RW69V152B12 RW68V100B12 RW80UR475FB12 RW80U2R40FB12 RW69V100S70 RW69VR47B12 RW68VR10B12 RW68V220B12 RW69V271B12 RW69V330B12 RW68V2R2B12 RW69V510B12 RW69V750B12 RW69VR22B12 RW69V511B12 RW69VR24B12 RW69V131B12 RW69V751B12 RW69VR25B12 RW80U5R60FS70