G, GN Vishay Dale Wirewound Resistors, Military, MIL-PRF-26 Qualified, Type RW, Precision Power, Silicone Coated FEATURES * From 1.4 to 4 times higher power ratings than conventional resistors of equivalent size * High temperature coating * Complete welded construction * Meets applicable requirements of MIL-PRF-26 * Available in non-inductive styles (type GN) with ArytonPerry winding for lowest reactive components * Excellent stability in operation STANDARD ELECTRICAL SPECIFICATIONS MODEL POWER RATING* P25C W U V 0.05% thru 5% 3% & 5% MIL-PRF-26 TYPE RESISTANCE RANGE MIL. RANGE SHOWN IN BOLD FACE WEIGHT (Typical) 0.05% 0.1% 0.25% 0.5%, 1% 3%, 5% g G-1-80 -- 1.0 -- 1.0 - 1k 0.499 - 1k 0.499 - 3.4k 0.1 - 3.4k 0.20 G-1-380 RW81 1.0 -- -- 0.499 - 1k 0.499 - 1k 0.1 - 1k 0.20 G-2 -- 1.5 -- 1.0 - 1.3k 0.499 - 1.3k 0.499 - 4.9k 0.1 - 4.9k 0.21 G-3-80 -- 2.0 -- 1.0 - 2.74k 0.499 - 2.74k 0.499 - 10.4k 0.1 - 10.4k 0.34 G-3-380 RW80 2.0 -- -- 0.499 - 2.74k 0.499 - 2.74k 0.1 - 2.74k 0.34 G-5 -- 4.0 5.0 0.499 - 6.5k 0.499 - 6.5k 0.1 - 24.5k 0.1 - 24.5k 0.80 G-5C -- 5.0 7.0 0.499 - 8.6k 0.499 - 8.6k 0.1 - 32.3k 0.1 - 32.3k 1.20 0.1 - 95.2k 3.60 G-10 -- 7.0 10.0 0.499 - 25.7k 0.499 - 25.7k 0.1 - 95.2k *Vishay Dale G models have two power ratings, depending on operation temperature and stability requirements. NOTE: Shaded area indicates most popular models. TECHNICAL SPECIFICATIONS PARAMETER Temperature Coefficient Dielectric Withstanding Voltage UNIT G RESISTOR CHARACTERISTICS ppm/C 90 for below 1, 50 for 1 to 9.9, 20 for 10 and above VAC 500 minimum for G-1-80 thru G-3-380, 1000 minimum for all others Short Time Overload - 5 x rated power for 5 seconds for G-1-80 thru G-5C (Characteristic U), 10 x rated power for 5 seconds for G-10 Maximum Working Voltage V (P x R)1/2 Insulation Resistance 1000 Megohm minimum dry, 100 Megohm minimum after moisture test Terminal Strength lb 5 minimum for G-1-80 thru G-3-380, 10 minimum for all others Solderability - MIL-PRF-26 type - Meets requirements of ANSI J-STD-002 Non Mil type - Terminals are 60/40 electro tin plated to facilitate soldering Operating Temperature Range C Characteristic U = - 65/+ 250, Characteristic V = - 65/+ 350 Power Rating - Characteristic U - + 250C max. hot spot temperature, 0.5% max. R in 2000 hr. load life Characteristic V - + 350C max. hot spot temperature, 3.0% max. R in 2000 hr. load life ORDERING INFORMATION www.vishay.com 118 G-3-80 10 1.0% MODEL RESISTANCE TOLERANCE % For technical questions, contact ww2bresistors@vishay.com Document Number 30205 Revision 06-Apr-01 G, GN Vishay Dale Wirewound Resistors, Military, MIL-PRF-26 Qualified, Type RW, Precision Power, Silicone Coated DIMENSIONS 1.50 [38.10]* Min. L MODEL D L1 C *On some standard reel pack methods, the leads may be trimmed to a shorter length than shown. MATERIAL SPECIFICATIONS RATED POWER IN % Element: Copper-nickel alloy or nickel-chrome alloy, depending on resistance value Core: Ceramic, Beryllium oxide or alumina, depending on resistor model Coating: Special high temperature silicone Standard Terminals: Tinned Copperweld(R) End Caps: Stainless steel Part Marking: DALE, Model, Wattage*, Value, Tolerance, Date Code *Wattage marked on part will be "U" characteristic 120 L L1 (Max.)** C D G-1-80 G-1-380 0.250 0.031 [6.35 0.787] 0.281 [7.14] 0.085 0.020 [2.16 0.508] 0.020 0.002 [0.508 0.051] G-2 0.312 0.016 [7.92 0.406] 0.328 [8.33] G-3-80 G-3-380 0.406 0.031 [10.31 0.787] 0.437 [11.10] 0.094 0.031 [2.39 0.787] 0.020 0.002 [0.508 0.051] G-5 0.562 0.062 [14.27 1.57] 0.622 [15.80] 0.188 0.032 [4.78 0.813] 0.032 0.002 [0.813 0.051] G-5C 0.500 0.062 [12.70 1.57] 0.593 [15.06] 0.218 0.032 [5.54 0.813] 0.040 0.002 [1.02 0.051] G-10 0.875 0.062 [22.23 1.57] 1.0 [25.4] 0.312 0.032 [7.92 0.813] 0.040 0.002 [1.02 0.051] 0.078 + 0.016 - 0.031 0.020 0.002 [1.98 + 0.406 - 0.787] [0.508 0.051] **L1 (Max.) dimension is clean lead to clean lead. GN NON-INDUCTIVE Models of equivalent physical and electrical specifications are available with non-inductive (Aryton-Perry) winding. They are identified by inserting the letter N after G in the model number (GN-5, for example). Two conditions apply: 100 80 60 1. For GN models, divide maximum resistance values by two 2. Body O.D. on GN-5C may exceed that of the G-5C by 0.010" CHAR. V 40 20 0-65 -50 DIMENSIONS in inches [millimeters] TERMINATION CHAR. U 0 50 25 Derating 150 250 350 AMBIENT TEMPERATURE IN C When G resistors will be operated at full rated power, resistance welding or high temperature solder are the recommended termination methods. Termination should be made within 1/2 inch from end of resistor body. PERFORMANCE TEST CONDITIONS OF TEST Thermal Shock Rated power applied until thermally stable, then a minimum of 15 minutes at - 55C (0.2% + 0.05) R Short Time Overload 5 x power (G-1-80 thru G-5C), 10 x power (G-10) for 5 seconds (0.2% + 0.05) R Dielectric Withstanding Voltage 1000V rms, one minute (0.1% + 0.05) R Low Temperature Storage - 65C for 24 hours (0.2% + 0.05) R High Temperature Exposure 250 hours at + 250 (Characteristic U) (0.5% + 0.05) R Moisture Resistance MIL-STD-202 Method 106, 7b not applicable (0.2% + 0.05) R Shock, Specified Pulse MIL-STD-202 Method 213, 100g's for 6 milliseconds, 10 shocks (0.1% + 0.05) R Vibration, High Frequency Frequency varied 10 to 2000Hz, 20g peak, 2 directions 6 hours each (0.1% + 0.05) R Load Life 2000 hours at rated power, + 25C, 1.5 hours "ON", 0.5 hours "OFF" (0.5% + 0.05) R Terminal Strength 5 to 10 sec., 5 or 10 lb pull test (depending on size), torsion test - 3 alternating directions, 360C each (0.1% + 0.05) R Document Number 30205 Revision 06-Apr-01 For technical questions, contact ww2bresistors@vishay.com TEST LIMITS (CHARACTERISTIC U) www.vishay.com 119