RE Military www.vishay.com Vishay Dale Wirewound Resistors, Military, MIL-PRF-18546 Qualified, Type RE, Aluminum Housed, Chassis Mount FEATURES * * * * Molded construction for total environmental protection Complete welded construction Qualified to MIL-PRF-18546 Available in non-inductive styles (type N) with Ayrton-Perry winding for lowest reactive components * Mounts on chassis to utilize heat-sink effect * Excellent stability in operation (< 1 % change in resistance) STANDARD ELECTRICAL SPECIFICATIONS VISHAY REFERENCE MODEL POWER RATING P25 C W RESISTANCE RANGE RE60G RH005 5 0.10 to 3.32K 1 3 RE60N NH005 5 1.0 to 1.65K 1 3.3 RE65G RH010 10 0.10 to 5.62K 1 6 RE65N NH010 10 1.0 to 2.8K 1 8.8 RE70G RH025 20 0.10 to 12.1K 1 13 RE70N NH025 20 1.0 to 6.04K 1 16.5 RE75G RH050 30 0.10 to 39.2K 1 28 RE75N NH050 30 1.0 to 19.6K 1 35 RE77G RH100 75 0.05 to 29.4K 1 350 RE77N NH100 75 1.0 to 14.7K 1 385 RE80G RH250 120 0.10 to 35.7K 1 630 RE80N NH250 120 1.0 to 17.4K 1 690 MILITARY MODEL WEIGHT (typical) g TOLERANCE % TECHNICAL SPECIFICATIONS PARAMETER UNIT RE RESISTOR CHARACTERISTICS ppm/C 20 for 10 and above; 50 for 1 to 9.9 ; 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 - MIL-PRF-18546 type - meets requirements of ANSI J-STD-002 C -55 to +250 Temperature Coefficient Operating Temperature Range MILITARY PART NUMBER INFORMATION Military Part Numbering example: RE77N1302J01 R E 7 7 N 1 3 0 2 J 0 1 MIL TYPE CHARACTERISTIC RESISTANCE VALUE PACKAGING CODE RE60 RE65 RE70 RE75 RE77 RE80 G = inductive N = non-inductive 3 digit significant figure, followed by a multiplier C02 = card pack (RE60 to RE75) J01 = skin pack 49R9 = 49.9 1000 = 100 1001 = 1000 1302 = 13 000 Note * Only tolerance available for RE type is 1 % Revision: 18-Nov-2020 Document Number: 30282 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 RE Military www.vishay.com Vishay Dale DIMENSIONS in inches [millimeters] D C A RE60, RE65 RE70, RE75 F E M N G J B P H L K DIMENSIONS in inches [millimeters] MILITARY MODEL A B C D E F G H J K L M N P RE60 0.600 0.490 0.444 0.005 0.005 0.030 [11.28 [12.45 [15.24 0.127] 0.127] 0.787] 0.050 0.266 0.078 0.093 0.078 0.133 0.065 0.320 0.646 1.125 0.334 0.062 0.015 0.015 0.015 0.010 0.010 0.010 0.005 0.015 0.005 0.062 [6.76 [1.27 [1.98 [2.36 [1.98 [3.38 [1.65 [8.13 [16.41 [8.48 [28.58 1.57] 0.381] 0.381] 0.381] 0.254] 0.254] 0.254] 0.127] 0.381] 0.127] 1.57] RE65 0.750 0.625 0.562 0.005 0.005 0.031 [14.27 [15.88 [19.05 0.127] 0.127] 0.787] 0.085 0.312 0.102 0.094 0.093 0.165 0.075 0.390 0.800 1.375 0.420 0.062 0.015 0.015 0.015 0.010 0.010 0.010 0.005 0.015 0.005 0.062 [34.93 [10.67 [20.32 [7.92 [2.16 [2.59 [2.39 [2.36 [4.19 [1.91 [9.91 1.57] 0.381] 0.381] 0.381] 0.254] 0.254] 0.254] 0.127] 0.381] 0.127] 1.57] RE70 1.062 0.781 0.719 0.005 0.005 0.031 [18.26 [19.84 [26.97 0.127] 0.127] 0.787] 0.085 0.115 0.125 0.172 0.231 0.075 0.546 1.080 1.938 0.550 0.062 0.015 0.015 0.015 0.010 0.010 0.010 0.005 0.015 0.005 [2.16 [2.92 [3.18 [4.37 [5.87 [1.91 [49.23 [13.97 [27.43 [13.87 1.57] 0.381] 0.381] 0.381] 0.254] 0.254] 0.254] 0.127] 0.381] 0.127] 0.438 0.062 [11.13 1.57] RE75 1.968 1.562 0.844 0.005 0.005 0.031 [39.67 [21.44 [49.99 0.127] 0.127] 0.787] 0.085 0.107 0.125 0.196 0.260 0.088 0.610 1.140 2.781 0.630 0.062 0.015 0.015 0.015 0.010 0.010 0.010 0.005 0.015 0.005 [2.16 [2.72 [3.18 [4.98 [6.60 [2.24 [70.64 [16.00 [28.96 [15.49 1.57] 0.381] 0.381] 0.381] 0.254] 0.254] 0.254] 0.127] 0.381] 0.127] 0.438 0.062 [11.13 1.57] DIMENSIONS in inches [millimeters] RE77 Stainless steel nut and stud 3.50 0.031 [88.90 0.787] 0.188 0.010 [4.78 0.254] Dia. typ. 1.812 0.031 [46.02 0.787] 1.125 0.031 [28.58 0.787] 2.812 0.031 [71.42 0.787] 1.75 0.031 [44.45 0.787] 2.25 0.010 [57.15 0.254] 12 - 24 UNC-2A Thd. typ. RE80 Nickel plated brass nut stainless steel stud 0.375 0.031 [9.52 0.787] 2.75 0.010 [69.85 0.254] 5.478 0.093 [139.14 2.36] 0.188 0.010 [4.78 0.254] Dia. typ. 4.50 0.031 [114.30 0.787] Revision: 18-Nov-2020 1/4 - 20 UNC-2A thd. typ. 0.188 0.031 0.770 0.015 [4.78 0.787] [19.56 0.381] typ. 2.125 0.031 [53.98 0.787] 1.25 0.062 [31.75 1.575] 3.0 0.031 [76.20 0.787] 0.312 0.031 [7.92 0.787] 0.989 0.031 [25.12 0.787] 2.188 0.031 [55.58 0.787] 2.50 0.010 [63.50 0.254] 0.875 0.010 [22.23 0.254] 3.0 0.010 [76.20 0.254] 3.875 0.010 [98.42 0.254] 7.0 0.093 [177.80 2.36] 1.25 0.062 [31.75 1.575] 0.250 0.031 [6.35 0.787] typ. 0.955 0.015 [24.26 0.381] Document Number: 30282 2 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 RE Military www.vishay.com Vishay Dale POWER RATING Vishay RE resistor wattage ratings are based on mounting to the following heat sink: RE60 and RE65: 4" x 6" x 2" x 0.040" thick aluminum chassis RE70 and RE75: 5" x 7" x 2" x 0.040" thick aluminum chassis RE77 and RE80: 7" x 9" x 2" x 0.060" thick aluminum chassis FREE AIR POWER RATING MILITARY MODEL RE60 RE65 RE70 RE75 RE77 RE80 W at 25 C 3 6 8 10 30 75 AMBIENT TEMPERATURE DERATING RATED POWER IN % Derating is required for ambient temperatures above 25 C when mounted to specified heat sink, see the following graph. 120 100 80 60 40 20 0 - 55 - 50 0 50 150 25 250 AMBIENT TEMPERATURE IN C REDUCED HEAT SINK DERATING 35 RE75 30 25 RE70 20 15 140 RE80 120 100 RE77 80 60 RE65 10 RE60 5 0 POWER IN W POWER IN W Derating is also required when recommended heat sink area is reduced. 1 Revision: 18-Nov-2020 10 100 1000 CHASSIS AREA IN SQUARE INCHES 40 20 0 1 10 100 1000 CHASSIS AREA IN SQUARE INCHES Document Number: 30282 3 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 RE Military www.vishay.com Vishay Dale MATERIAL SPECIFICATIONS NON-INDUCTIVE (TYPE N) Element: copper-nickel alloy or nickel-chrome alloy, depending on resistance value Models of equivalent physical and electrical specifications are available with non-inductive (Ayrton-Perry) winding. They are identified by substituting the letter N for G in the model number (RE60N, for example). 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: For RE77 and RE80 terminals are threaded stainless steel. All others are 60/40 tin/lead (Sn/Pb) w/nickel underplate on copper clad steel core terminal. Part Marking: Dale, model, wattage, value, tolerance, date code PERFORMANCE TEST CONDITIONS OF TEST TEST LIMITS Thermal Shock Rated power applied until thermally stable, then a minimum of 15 min at -55 C (0.5 % + 0.05 ) R Short Time Overload 5 x rated power for 5 s (0.5 % + 0.05 ) R Dielectric Withstanding Voltage 1000 VRMS for RE60, RE65 and RE70; 2000 VRMS for RE75; 4500 VRMS for RE77 and RE80; duration 1 min (0.2 % + 0.05 ) R Temperature 250 C for 2 h (0.5 % + 0.05 ) R Moisture Resistance MIL-STD-202 method 106, 7b not applicable (1.0 % + 0.05 ) R Shock, Specified Pulse MIL-STD-202 method 213, 100 g's for 6 ms, 10 shocks (0.2 % + 0.05 ) R Vibration, High Frequency Frequency varied 10 Hz to 2000 Hz, 20 g peak, 2 directions 6 h each (0.2 % + 0.05 ) R Load Life 1000 h at rated power, +25 C, 1.5 h "ON", 0.5 h "OFF" (1.0 % + 0.05 ) R Terminal Strength 30 s, 5 pound pull test for RE60 and RE65, 10 pound pull test for other sizes; torque test - 24 pound inch for RE77 and 32 pound inch for RE80 (0.2 % + 0.05 ) R Revision: 18-Nov-2020 Document Number: 30282 4 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 Legal Disclaimer Notice www.vishay.com Vishay Disclaimer ALL PRODUCT, PRODUCT SPECIFICATIONS AND DATA ARE SUBJECT TO CHANGE WITHOUT NOTICE TO IMPROVE RELIABILITY, FUNCTION OR DESIGN OR OTHERWISE. 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 in any datasheet or in any other disclosure relating to any product. Vishay makes no warranty, representation or guarantee regarding the suitability of the products for any particular purpose or the continuing production of any product. To the maximum extent permitted by applicable law, Vishay disclaims (i) any and all liability arising out of the application or use of any product, (ii) any and all liability, including without limitation special, consequential or incidental damages, and (iii) any and all implied warranties, including warranties of fitness for particular purpose, non-infringement and merchantability. Statements regarding the suitability of products for certain types of applications are based on Vishay's knowledge of typical requirements that are often placed on Vishay products in generic applications. Such statements are not binding statements about the suitability of products for a particular application. It is the customer's responsibility to validate that a particular product with the properties described in the product specification is suitable for use in a particular application. Parameters provided in datasheets and / or specifications may vary in different applications and performance may vary over time. All operating parameters, including typical parameters, must be validated for each customer application by the customer's technical experts. Product specifications do not expand or otherwise modify Vishay's terms and conditions of purchase, including but not limited to the warranty expressed therein. Except as expressly indicated in writing, Vishay products are not designed for use in medical, life-saving, or life-sustaining applications or for any other application in which the failure of the Vishay product could result in personal injury or death. Customers using or selling Vishay products not expressly indicated for use in such applications do so at their own risk. Please contact authorized Vishay personnel to obtain written terms and conditions regarding products designed for such applications. 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. Product names and markings noted herein may be trademarks of their respective owners. (c) 2021 VISHAY INTERTECHNOLOGY, INC. ALL RIGHTS RESERVED Revision: 01-Jan-2021 1 Document Number: 91000