rer military www.vishay.com vishay dale revision: 23-may-13 1 document number: 30200 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 wirewound resistors, military/established reliability mil-prf-39009 qualified, type rer, r level features ? aluminum heat sink housing ? molded construction for to tal environmental protection ? qualified to mil-prf-39009 ? complete welded construction ? non-inductive styles manufactured with ayrton-perry winding for lowest reactive components ? mounts on chassis to utilize heat-sink effect standard electrical specifications military ? model vishay reference model power rating p 25 c w resistance range ? tolerance % weight (typical) g rer40 enh05 5 1 to 1.65k 1 3.3 rer45 enh10 10 1 to 2.8k 1 8.8 rer50 enh25 20 1 to 6.04k 1 16.5 rer55 enh50 30 1 to 4.99k 1 35 rer60 erh05 5 0.10 to 3.32k 1 3 rer65 erh10 10 0.10 to 5.62k 1 6 rer70 erh25 20 0.10 to 12.1k 1 13 rer75 erh50 30 0.10 to 39.2k 1 28 technical specifications parameter unit rer40/rer60 rer45/rer65 rer50/rer70 rer55/rer75 free air power rati ng at 25 c w 3 6 8 10 temperature coeffici ent ppm/c 20 for 20 ? and above; 50 for 1 ? to 19.9 ? ; 100 for 0.1 ? to 0.99 ? maximum working voltage v ( p x r ) 1/2 insulation resistance ? 10 000 m ? minimum dry, 1000 m ? minimum after moisture test solderability - meets requirements of ansi j-std-002 operating temperature range c - 55 to + 250 military part number information military part numbering example: rer65f1001rc02 mil type tolerance code resistance value failure rate packaging code rer40 rer45 rer50 rer55 rer60 rer65 rer70 rer75 f = 1.0 % 3 digit significant figure, followed by a multiplier 49r9 = 49.9 ? 1000 = 100 ? 1001 = 1000 ? m = 1.0 %/1000 h p = 0.1 %/1000 h r = 0.01 %/1000 h c02 = tin/lead, card pack csl = tin/lead, card pack, single lot date code r e r 6 5 f 0 1 0 r 1 c 0 2
rer military www.vishay.com vishay dale revision: 23-may-13 2 document number: 30200 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 dimensions material specifications element: copper-nickel alloy or nickel-chrome alloy, depending on re sistance value core: ceramic, steatite or alum ina, depending on physical size encapsulant: silicone molded construction housing: aluminum with hard anodic coating end caps: stainless steel standard terminals: tinned copperweld ? part marking: source code, jan, milit ary pin, date/lot code power rating vishay rer resistor wattage ra tings are based on mounting to the proper heat sink. ? rer40, rer45, rer60, rer65: 4" x 6" x 2" x 0.040" thick aluminum chassis ? rer50, rer55, rer70, rer75: 5" x 7" x 2" x 0.040" thick aluminum chassis derating ? military ? model dimensions in inches [millimeters] abcdefghjklmnp rer40 rer60 0.444 0.005 [11.280 0.127] 0.490 0.005 [12.450 0.127] 0.600 0.031 [15.240 0.787] 1.125 0.062 [28.580 1.570] 0.334 0.015 [8.480 0.381] 0.646 0.015 [16.410 0.381] 0.320 0.015 [8.130 0.381] 0.065 0.010 [1.650 0.254] 0.133 0.010 [3.380 0.254] 0.078 0.010 [1.980 0.254] 0.093 0.005 [2.360 0.127] 0.078 0.015 [1.980 0.381] 0.050 0.005 [1.270 0.127] 0.266 0.062 [6.760 1.570] rer45 rer65 0.562 0.005 [14.270 0.127] 0.625 0.005 [15.880 0.127] 0.750 0.031 [19.050 0.787] 1.375 0.062 [34.930 1.570] 0.420 0.015 [10.670 0.381] 0.800 0.015 [20.320 0.381] 0.390 0.015 [9.910 0.381] 0.075 0.010 [1.900 0.254] 0.165 0.010 [4.190 0.254] 0.093 0.010 [2.360 0.254] 0.094 0.005 [2.390 0.127] 0.102 0.015 [2.590 0.381] 0.085 0.005 [2.160 0.127] 0.312 0.062 [7.920 1.570] rer50 rer70 0.719 0.005 [18.260 0.127] 0.781 0.005 [19.840 0.127] 1.062 0.031 [26.970 0.787] 1.938 0.062 [49.230 1.570] 0.550 0.015 [13.970 0.381] 1.080 0.015 [27.430 0.381] 0.546 0.015 [13.870 0.381] 0.075 0.010 [1.900 0.254] 0.231 0.010 [5.870 0.254] 0.172 0.010 [4.370 0.254] 0.125 0.005 [3.180 0.127] 0.115 0.015 [2.920 0.381] 0.085 0.005 [2.160 0.127] 0.438 0.062 [11.130 1.570] rer55 rer75 1.562 0.005 [39.670 0.127] 0.844 0.005 [21.440 0.127] 1.968 0.031 [49.990 0.787] 2.781 0.062 [70.640 1.570] 0.630 0.015 [16.000 0.381] 1.140 0.015 [28.960 0.381] 0.610 0.015 [15.490 0.381] 0.088 0.010 [2.240 0.254] 0.260 0.010 [6.600 0.254] 0.196 0.010 [4.980 0.254] 0.125 0.005 [3.180 0.127] 0.107 0.015 [2.720 0.381] 0.085 0.005 [2.160 0.127] 0.438 0.062 [11.130 1.570] l k p m d c a b n j e f h g ambient temperature in c 120 100 80 60 40 20 0 25 rated power in % - 50 performance test conditions of test test limits low temperature operation apply rated power until thermal stab ility, remove power subject to air temperature of - 55 c for 15 min to 30 min (0.5 % + 0.01 ? ) ? r short time overload 5 x rated power for 5 s (0.3 % + 0.01 ? ) ? r dielectric withstanding voltage 1000 v rms (rer40, rer45, rer50, rer60, rer65, rer70), ? 2000 v rms (rer55 and rer75), 1 min duration (0.2 % + 0.01 ? ) ? r low temperature storage - 55 c for 24 h (0.3 % + 0.01 ? ) ? r high temperature exposure 250 c for 2000 h (1.0 % + 0.01 ? ) ? r moisture resistance mil-std-202, method 106 (0.5 % + 0.01 ? ) ? r shock, specified pulse mil -std-202, method 213, condition 1 (0.2 % + 0.01 ? ) ? r vibration, high frequency mil-std-202, method 204, condition d (0.2 % + 0.01 ? ) ? r load life 2000 h at rated power, + 25 c, 1.5 h on, 0.5 h off (1.0 % + 0.01 ? ) ? r extended life 10 000 h at rated power, + 25 c, 1.5 h on, 0.5 h off (0.2 % + 0.01 ? ) ? r terminal strength mil-std-202, method 211, condition a ? 5 pound (rer40, rer45, rer60, rer65), ? 10 pound (rer50, rer55,rer70, rer75) (0.2 % + 0.01 ? ) ? r
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