ERH, ENH Vishay Dale Wirewound Resistors, Military/Established Reliability MIL-PRF-39009 Qualified, Type RER, R Level FEATURES • Aluminum heat sink housing • Molded construction for total environmental protection • Qualified to MIL-PRF-39009 • Complete welded construction • Available in non-inductive styles (type ENH) with ArytonPerry winding for lowest reactive components • Mounts on chassis to utilize heat-sink effect STANDARD ELECTRICAL SPECIFICATIONS POWER RATING P25 °C W MOUNTED FREE AIR MILITARY RESISTANCE RANGE ±1% Ω ENH-5 RER40 5 3 1 - 1.65K ENH-10 RER45 10 6 1 - 2.8K 8.8 ENH-25 RER50 20 8 1 - 6.04K 16.5 ENH-50 RER55 30 10 1 - 4.99K 35 ERH-5 RER60 5 3 0.10 - 3.32K 3 MIL-PRF-39009 TYPE MODEL WEIGHT (typical) g 3.3 ERH-10 RER65 10 6 0.10 - 5.62K 6 ERH-25 RER70 20 8 0.10 - 12.1K 13 ERH-50 RER75 30 10 0.10 - 39.2K 28 TECHNICAL SPECIFICATIONS PARAMETER Temperature Coefficient Dielectric Withstanding Voltage UNIT ERH, ENH RESISTOR CHARACTERISTICS ppm/°C ± 100 for 0.1 Ω to 0.99 Ω, ± 50 for 1 Ω to 19.9 Ω, ± 20 for 20 Ω and above VAC 1000 for ERH-5, ERH-10 and ERH-25, 2000 for ERH-50 Short Time Overload - 5 x rated power for 5 s Maximum Working Voltage V (P x R)1/2 Insulation Resistance Ω 10 000 MΩ minimum dry, 1000 MΩ minimum after moisture test Terminal Strength lb 5 pull for ERH-5 and ERH-10, 10 pull for ERH-25 and ERH-50 Solderability - Meets requirements of ANSI J-STD-002 °C - 55 to + 250 Operating Temperature Range GLOBAL PART NUMBER INFORMATION Global/Military Part Numbering: RER65F1001RC02 R E R 6 5 F 1 0 0 1 R C 0 2 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 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 www.vishay.com 160 49R9 = 49.9 Ω 1000 = 100 Ω 1001 = 1000 Ω For technical questions, contact: [email protected] Document Number: 30200 Revision: 29-May-08 ERH, ENH Wirewound Resistors, Military/Established Reliability MIL-PRF-39009 Qualified, Type RER, R Level Vishay Dale DIMENSIONS D C A F M N E H B G J P MODEL ERH-5 ENH-5 ERH-10 ENH-10 ERH-25 ENH-25 ERH-50 ENH-50 A 0.444 ± 0.005 [11.280 ± 0.127] 0.562 ± 0.005 [14.270 ± 0.127] 0.719 ± 0.005 [18.260 ± 0.127] 1.562 ± 0.005 [39.670 ± 0.127] B 0.490 ± 0.005 [12.450 ± 0.127] 0.625 ± 0.005 [15.880 ± 0.127] 0.781 ± 0.005 [19.840 ± 0.127] 0.844 ± 0.005 [21.440 ± 0.127] C 0.600 ± 0.031 [15.240 ± 0.787] 0.750 ± 0.031 [19.050 ± 0.787] 1.062 ± 0.031 [26.970 ± 0.787] 1.968 ± 0.031 [49.990 ± 0.787] D 1.125 ± 0.062 [28.580 ± 1.570] 1.375 ± 0.062 [34.930 ± 1.570] 1.938 ± 0.062 [49.230 ± 1.570] 2.781 ± 0.062 [70.640 ± 1.570] L E 0.334 ± 0.015 [8.480 ± 0.381] 0.420 ± 0.015 [10.670 ± 0.381] 0.550 ± 0.015 [13.970 ± 0.381] 0.630 ± 0.015 [16.000 ± 0.381] DIMENSIONS in inches [millimeters] F G H J 0.133 0.065 0.320 0.646 ± 0.015 ± 0.015 ± 0.010 ± 0.010 [3.380 [1.650 [16.410 [8.130 ± 0.381] ± 0.381] ± 0.254] ± 0.254] 0.800 0.390 0.075 0.165 ± 0.015 ± 0.015 ± 0.010 ± 0.010 [20.320 [9.910 [1.900 [4.190 ± 0.381] ± 0.381] ± 0.254] ± 0.254] 0.231 0.075 0.546 1.080 ± 0.015 ± 0.015 ± 0.010 ± 0.010 [5.870 [27.430 [13.870 [1.900 ± 0.381] ± 0.381] ± 0.254] ± 0.254] 0.260 0.088 0.610 1.140 ± 0.015 ± 0.015 ± 0.010 ± 0.010 [6.600 [28.960 [15.490 [2.240 ± 0.381] ± 0.381] ± 0.254] ± 0.254] 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: Tinned Copperweld® Part Marking: Source code, JAN, military PIN, date/lot code RATED POWER IN % K Vishay ERH and ENH resistor wattage ratings are based on mounting to the proper heat sink. ERH-5 and ERH-10: 4" x 6" x 2" x 0.040" thick aluminum chassis ERH-25 and ERH-50: 5" x 7" x 2" x 0.040" thick aluminum chassis L 0.093 ± 0.005 [2.360 ± 0.127] 0.094 ± 0.005 [2.390 ± 0.127] 0.125 ± 0.005 [3.180 ± 0.127] 0.125 ± 0.005 [3.180 ± 0.127] M 0.078 ± 0.015 [1.980 ± 0.381] 0.102 ± 0.015 [2.590 ± 0.381] 0.115 ± 0.015 [2.920 ± 0.381] 0.107 ± 0.015 [2.720 ± 0.381] N 0.050 ± 0.005 [1.270 ± 0.127] 0.085 ± 0.005 [2.160 ± 0.127] 0.085 ± 0.005 [2.160 ± 0.127] 0.085 ± 0.005 [2.160 ± 0.127] P 0.266 ± 0.062 [6.760 ± 1.570] 0.312 ± 0.062 [7.920 ± 1.570] 0.438 ± 0.062 [11.130 ± 1.570] 0.438 ± 0.062 [11.130 ± 1.570] 120 100 80 60 40 20 0 - 55 - 50 Derating POWER RATING K 0.078 ± 0.010 [1.980 ± 0.254] 0.093 ± 0.010 [2.360 ± 0.254] 0.172 ± 0.010 [4.370 ± 0.254] 0.196 ± 0.010 [4.980 ± 0.254] 0 50 25 100 150 200 250 AMBIENT TEMPERATURE IN °C APPLICABLE MIL SPECIFICATION MIL-PRF-39009: This is the military specification covering housed chassis mount established reliability power wirewound resistors. Vishay ERH and ENH resistors are listed as qualified on the MIL-PRF-39009 QPL. PERFORMANCE TEST Low Temperature Operation Short Time Overload Dielectric Withstanding Voltage Low Temperature Storage High Temperature Exposure Moisture Resistance Shock, Specified Pulse Vibration, High Frequency Load Life Extended Life Terminal Strength Document Number: 30200 Revision: 29-May-08 CONDITIONS OF TEST Apply rated power until thermal stability, remove power subject to air temperature of - 55 °C for 15 to 30 min 5 x rated power for 5 s 1000 Vrms (RER 40, 45, 50, 60, 65, 70), 2000 Vrms (RER55 and 75), 1 min duration - 55 °C for 24 h 250 °C for 2000 h MIL-STD-202, Method 106 MIL-STD-202, Method 213, condition 1 MIL-STD-202, Method 204, condition D 2000 h at rated power, + 25 °C, 1.5 h “ON”, 0.5 h “OFF” 10 000 h at rated power, + 25 °C, 1.5 h “ON”, 0.5 h “OFF” MIL-STD-202, Method 211, condition A 5 pound (RER40, 45, 60, 65), 10 pound (RER50, 55, 70, 75) For technical questions, contact: [email protected] TEST LIMITS ± (0.5 % + 0.01 Ω) ΔR ± (0.3 % + 0.01 Ω) ΔR ± (0.2 % + 0.01 Ω) ΔR ± (0.3 % + 0.01 Ω) ΔR ± (1.0 % + 0.01 Ω) ΔR ± (0.5 % + 0.01 Ω) ΔR ± (0.2 % + 0.01 Ω) ΔR ± (0.2 % + 0.01 Ω) ΔR ± (1.0 % + 0.01 Ω) ΔR ± (2.0 % + 0.01 Ω) ΔR ± (0.2 % + 0.01 Ω) ΔR www.vishay.com 161 Legal Disclaimer Notice Vishay Disclaimer All product specifications and data are subject to change without notice. Vishay Intertechnology, Inc., its affiliates, agents, and employees, and all persons acting on its or their behalf (collectively, “Vishay”), disclaim any and all liability for any errors, inaccuracies or incompleteness contained herein or in any other disclosure relating to any product. Vishay disclaims any and all liability arising out of the use or application of any product described herein or of any information provided herein to the maximum extent permitted by law. The product specifications do not expand or otherwise modify Vishay’s terms and conditions of purchase, including but not limited to the warranty expressed therein, which apply to these products. No license, express or implied, by estoppel or otherwise, to any intellectual property rights is granted by this document or by any conduct of Vishay. The products shown herein are not designed for use in medical, life-saving, or life-sustaining applications unless otherwise expressly indicated. Customers using or selling Vishay products not expressly indicated for use in such applications do so entirely at their own risk and agree to fully indemnify Vishay for any damages arising or resulting from such use or sale. Please contact authorized Vishay personnel to obtain written terms and conditions regarding products designed for such applications. Product names and markings noted herein may be trademarks of their respective owners. Document Number: 91000 Revision: 18-Jul-08 www.vishay.com 1