ESS, ESN, EGS, EGN Vishay Dale Wirewound Resistors, Military/Established Reliability MIL-PRF-39007 Qualified, Type RWR, R Level FEATURES • • • • High temperature silicone coated Complete welded construction Qualified to MIL-PRF-39007 Available in non-inductive styles (types ESN and EGN) with Aryton-Perry winding for lowest reactive components • “S” level failure rate available • Note: “Terminal Wire and Winding” type “W” and “Z” are not listed below but are available upon request. Please reference MIL-PRF-39007 QPL for approved “failure rate” and “resistance tolerance/ranges” STANDARD ELECTRICAL SPECIFICATIONS MILITARY RESISTANCE RANGE Ω MIL-PRF-39007 TYPE POWER RATING P25 °C W EGS-1-80 RWR81S 1 EGN-1-80 RWR81N 1 0.499 - 499 0.1 - 499 0.21 EGS-2 RWR82S 2 0.499 - 1.3K 0.1 - 1.3K 0.23 EGN-2 RWR82N 2 0.499 - 649 0.1 - 649 0.23 EGS-3-80 RWR80S 2 0.499 - 3.16K 0.1 - 3.16K 0.34 EGN-3-80 RWR80N 2 0.499 - 1.58K 0.1 - 1.58K 0.34 ESS-2A RWR71S 2 0.499 - 12.1K 0.1 - 12.1K 0.90 ESN-2A RWR71N 2 0.499 - 6.04K 0.1 - 6.04K 0.90 ESS-2B RWR89S 3 0.499 - 4.12K 0.1 - 4.12K 0.70 ESN-2B RWR89N 3 0.499 - 2.05K 0.1 - 2.05K 0.70 ESS-5 RWR74S 5 0.499 - 12.1K 0.1 - 12.1K 4.2 ESN-5 RWR74N 5 0.499 - 6.04K 0.1 - 6.04K 4.2 EGS-10-80 RWR84S 7 0.499 - 12.4K 0.1 - 12.4K 3.6 EGN-10-80 RWR84N 7 0.499 - 6.19K 0.1 - 6.19K 3.6 ESS-10 RWR78S 10 0.499 - 39.2K 0.1 - 39.2K 9.0 ESN-10 RWR78N 10 0.499 - 19.6K 0.1 - 19.6K 9.0 MODEL ± 0.1 % ± 0.5 % and ± 1 % WEIGHT (typical) g 0.499 - 1K 0.1 - 1K 0.21 GLOBAL PART NUMBER INFORMATION Global/Military Part Numbering: RWR74S49R9FSB12 R R 7 TERMINAL WIRE AND WINDING MIL TYPE RWR71 RWR74 RWR78 RWR80 RWR81 RWR82 RWR84 RWR89 W 4 S 4 9 RESISTANCE VALUE S = Solderable, inductive N = Solderable, noninductive W = Weldable, inductive (1) Z = Weldable, noninductive (1) 3 digit significant figure, followed by a multiplier 49R9 = 49.9 Ω 1000 = 100 Ω 1001 = 1000 Ω R 9 F TOLERANCE CODE B = ± 0.1 % D = ± 0.5 % F = ± 1.0 % S B 1 2 FAILURE RATE PACKAGING CODE M = 1.0 %/1000 h P = 0.1 %/1000 h R = 0.01 %/1000 h S = 0.001 %/1000 h B12 = Bulk pack S70 = Tape/reel (smaller than 5 W) S73 = Tape/reel (5 W and higher) BSL = Bulk pack, single lot date code RSL = Tape/reel, single lot date code Note (1) Note that “W” and “Z” are not listed above but are available, see MIL-PRF-39007 QPL for available resistance values www.vishay.com 158 For technical questions, contact: [email protected] document number: 30203 Revision: 22-Oct-08 ESS, ESN, EGS, EGN Wirewound Resistors, Military/Established Reliability MIL-PRF-39007 Qualified, Type RWR, R Level DIMENSIONS in inches [millimeters] A 1.50 [38.10] (1) min. MIL-PRF-39007 MODEL RWR81 MATERIAL SPECIFICATIONS Element: Copper-nickel alloy or nickel-chrome alloy, depending on resistance value Core: Ceramic, beryllium oxide, steatite or alumina, depending on power requirement Coating: Special high temperature silicone Terminal and Winding: The terminal and the winding are identified by a letter symbol in the military type designation. Military symbol: S = Solderable, inductively wound W = Weldable, inductively wound N = Solderable, non-inductively wound Z = Weldable, non-inductively wound Terminals: Solderable - Tinned Copperweld® Weldable - bare nickel per MIL-STD-1276, Type N-1 End Caps: Stainless steel Part Marking: Source code, JAN, military PIN, date/lot code RWR82 RWR80 RWR71 RWR89 RWR74 RWR84 RWR78 RATED POWER IN % C B Note (1) On some standard reel pack methods, the leads may be trimmed to a shorter length than shown Vishay Dale DIMENSIONS in inches [millimeters] A B C 0.250 ± 0.031 0.085 ± 0.020 0.020 ± 0.0015 [6.35 ± 0.787] [2.16 ± 0.508] [0.508 ± 0.038] 0.312 ± 0.016 0.078 + 0.016 - 0.031 0.020 ± 0.0015 [7.92 ± 0.406] [1.98 + 0.406 - 0.787] [0.508 ± 0.038] 0.406 ± 0.031 0.094 ± 0.031 0.020 ± 0.0015 [10.31 ± 0.787] [2.39 ± 0.787] [0.508 ± 0.038] 0.812 ± 0.062 0.187 ± 0.031 0.032 ± 0.002 [20.62 ± 1.58] [4.75 ± 0.787] [0.813 ± 0.051] 0.560 ± 0.062 0.187 ± 0.031 0.032 ± 0.002 [14.22 ± 1.58] [4.75 ± 0.787] [0.813 ± 0.051] 0.875 ± 0.062 0.312 ± 0.031 0.040 ± 0.002 [22.23 ± 1.58] [7.92 ± 0.787] [1.02 ± 0.051] 0.875 ± 0.062 0.312 ± 0.031 0.040 ± 0.002 [22.23 ± 1.58] [7.92 ± 0.787] [1.02 ± 0.051] 1.780 ± 0.062 0.312 ± 0.031 0.040 ± 0.002 [45.21 ± 1.58] [7.92 ± 0.787] [1.02 ± 0.051] 120 100 80 60 40 APPLICABLE MIL-SPECIFICATION MIL-PRF-39007: This is the military specification covering axial lead established reliability power wirewound resistors. Vishay Dale ESS, ESW, EGS, EGW, ESN and EGN resistors meet or exceed the electrical, environmental and dimensional requirements of this specification. 20 0 - 65 - 50 0 25 50 Derating 150 250 AMBIENT TEMPERATURE IN °C TECHNICAL SPECIFICATIONS PARAMETER UNIT RWR RESISTOR CHARACTERISTICS Temperature Coefficient ppm/°C ± 650 for 0.1 Ω to 0.499 Ω, ± 400 for 0.505 Ω to 1 Ω, ± 50 for 1.1 Ω to 10 Ω, ± 20 for 10 Ω and above VAC 500 minimum for 2 W and smaller, 1000 minimum for 3 W and larger Dielectric Withstanding Voltage 5 x rated power for 5 s for 3 W size and smaller, Short Time Overload 10 x rated power for 5 s for 5 W size and greater Maximum Working Voltage V (P x R)1/2 Insulation Resistance . 1000 MΩ minimum dry, 100 MΩ minimum after moisture test Terminal Strength lb 5 minimum for 2 W and smaller, 10 minimum for 3 W and larger Solderability Meets requirements of ANSI J-STD-002 Operating Temperature Range °C - 65 to + 250 PERFORMANCE TEST Thermal Shock 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 CONDITIONS OF TEST MIL-STD-2.2, Method 303 5 x rated power (RWR71, 80, 81, 89, 82), 10 x rated power (RWR74, 78, 84) for 5 s 500 Vrms (RWR80, 81, 82), 1000 Vrms (RWR71, 74, 78, 84, 89), 1 min duration - 65 °C for 24 h 250 °C for 2000 h MIL-STD-202, Method 106 MIL-STD-202, Method 205, condition C 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 and C 5 pound (RWR80, 81, 82), 10 pound (RWR71, 74, 78, 84, 89) TEST LIMITS ± (0.2 % + 0.005 Ω) ΔR ± (0.2 % + 0.005 Ω) ΔR ± (0.1 % + 0.005 Ω) ΔR ± (0.1 % + 0.005 Ω) ΔR ± (1.0 % + 0.005 Ω) ΔR ± (0.2 % + 0.005 Ω) ΔR ± (0.1 % + 0.005 Ω) ΔR ± (0.1 % + 0.005 Ω) ΔR ± (0.5 % + 0.005 Ω) ΔR ± (1.0 % + 0.005 Ω) ΔR ± (0.1 % + 0.005 Ω) ΔR Note • For resistance values above 100 Ω, test limit is ± 1.0 % document number: 30203 Revision: 22-Oct-08 For technical questions, contact: [email protected] www.vishay.com 159 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. 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