RH, NH 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 * Meets applicable requirements of MIL-PRF-18546 * Available in non-inductive styles (type NH) with ArytonPerry winding for lowest reactive components * Mounts on chassis to utilize heat-sink effect * Excellent stability in operation STANDARD ELECTRICAL SPECIFICATIONS POWER RATING RESISTANCE RANGE WEIGHT P25C MIL. RANGE SHOWN IN BOLD FACE (Typical) W 0.5% 1%, 3%, 5% DALE MILITARY 0.05%, 0.1% 0.25% g GLOBAL HISTORICAL MODEL MODEL RH005 RH-5 -- RE60G 7.5 (5) NH005 NH-5 -- RE60N 7.5 (5) RH010 RH-10 -- RE65G 12.5 (10) NH010 NH-10 -- RE65N 12.5 (10) RH025 RH-25 -- RE70G 25 NH025 NH-25 -- RE70N 25 RH050 RH-50 -- RE75G 50 NH050 NH-50 -- RE75N 50 RH100 RH-100 -- RE77G 100 NH100 NH-100 -- RE77N 100 RH250 RH-250 -- RE80G 250 NH250 NH-250 -- RE80N 250 MIL-PRF18546 TYPE 5 0.5 - 6.75k -- 0.1 - 8.6k -- 0.05 - 8.6k -- 0.02 - 24.5k 0.10 - 3.32k 3 5 0.5 - 2.32k -- 0.1 - 3.27k -- 0.05 - 3.27k -- 0.05 - 12.75k 1.0 - 1.65k 3.3 10 0.5 - 12.7k -- 0.1 - 16.69k 0.05 - 16.69k -- -- 0.01 - 47.1k 0.10 - 5.62k 6 10 0.5 - 4.45k -- 0.1 - 5.54k -- 0.05 - 5.54k -- 0.05 - 23.5k 1.0 - 2.8k 8.8 20 0.5 - 25.7k -- 0.1 - 32.99k 0.05 - 32.99k -- -- 0.01 - 95.2k 0.10 - 12.1k 13 20 0.5 - 9.09k -- 0.1 - 12.8k -- 0.05 - 12.8k -- 0.05 - 47.6k 1.0 - 6.04k 16.5 30 0.5 - 73.4k -- 0.1 - 96k -- 0.05 - 96k -- 0.01 - 273k 0 .10 - 39.2k 28 30 0.5 - 26k -- 0.1 - 36.7k -- 0.05 - 36.7k -- 0.05 - 136k 1.0 - 19.6k 35 75 0.5 - 90k -- 0.1 - 90k -- 0.05 - 90k -- 0.05 - 90k 0.05 - 29.4k 350 75 0.5 - 37.5k -- 0.1 - 37.5k -- 0.05 - 37.5k -- 0.05 - 37.5k 1.0 - 14.7k 385 120 0.5 - 116k -- 0.1 - 116k -- 0.05 - 116k -- 0.05 - 116k 0.10 - 35.7k 630 120 0.5 - 48.5k -- 0.1 - 48.5k -- 0.05 - 48.5k -- 0.05 - 48.5k 1.0 - 17.4k 690 NOTE: Figures in parentheses on RH-5 and RH-10 indicate wattage printed on parts, new construction allows these resistors to be rated at higher wattage but will only be printed with the higher wattage on customer request. GLOBAL PART NUMBER INFORMATION New Global Part Numbering: RH0054R125FC02 (preferred part numbering format) R GLOBAL MODEL RH005 H 0 0 RESISTANCE VALUE L = Milliohm R = Decimal K = Thousand 8L000 = 0.008 15R00 = 15 10K00 = 10K 5 4 R 1 2 5 F C TOLERANCE CODE A = 0.05% C = 0.25% F = 1.0% B = 0.1% D = 0.5% J = 5.0% 0 2 PACKAGING SPECIAL *E02 = Lead Free, Card Pack (RH005 - RH050) *E01 = Lead Free, Skin Pack (RH100 & RH250) Lead Free is not available on RE military type *(Lead Free parts to be released Q1 2005) (Dash Number) (up to 3 digits) From 1-999 as applicable C02 = Tin/Lead, Card Pack (RH005 - RH050) J01 = Tin/Lead, Skin Pack (RH100 & RH250) Historical Part Number example: RH-5 4.125 1% C02 (will continue to be accepted) RH-5 HISTORICAL MODEL www.vishay.com 122 4.125 1% C02 RESISTANCE VALUE TOLERANCE CODE PACKAGING For technical questions, contact ww2bresistors@vishay.com Document Number 30201 Revision 09-Sep-04 RH, NH Vishay Dale Wirewound Resistors, Military, MIL-PRF-18546 Qualified, Type RE, Aluminum Housed, Chassis Mount DIMENSIONS D C A RH-5, -10, -25, -50 NH-5, -10, -25, -50 F E M N G J B P H L K MODEL DIMENSIONS in inches [millimeters] A B C D E F G H J K L M N P RH-5 NH-5 0.444 0.490 0.005 0.005 [11.28 [12.45 0.127] 0.127] 0.600 0.031 [15.24 0.787] 1.125 0.334 0.062 0.015 [28.58 [8.48 1.57] 0.381] 0.646 0.320 0.065 0.133 0.078 0.093 0.078 0.050 0.266 0.015 0.015 0.010 0.010 0.010 0.005 0.015 0.005 0.062 [16.41 [8.13 [1.65 [3.38 [1.98 [2.36 [1.98 [1.27 [6.76 .381] 0.381] 0.254] 0.254] 0.254] 0.127] .381] 0.127] 1.57] RH-10 NH-10 0.562 0.625 0.005 0.005 [14.27 [15.88 0.127] 0.127] 0.750 0.031 [19.05 0.787] 1.375 0.420 0.800 0.390 0.075 0.165 0.093 0.094 0.102 0.085 0.312 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 [9.91 [1.91 [4.19 [2.36 [2.39 [2.59 [2.16 [7.92 1.57] 0.381] 0.381] 0.381] 0.254] 0.254] 0.254] 0.127] 0.381] 0.127] 1.57] RH-25 NH-25 0.719 0.781 0.005 0.005 [18.26 [19.84 0.127] 0.127] 1.062 0.031 [26.97 0.787] 1.938 0.550 0.062 0.015 [49.23 [13.97 1.57] .381] 1.080 0.015 [27.43 0.381] 0.546 0.075 0.231 0.172 0.125 0.115 0.085 0.438 0.015 0.010 0.010 0.010 0.005 0.015 0.005 0.062 [13.87 [1.91 [5.87 [4.37 [3.18 [2.92 [2.16 [11.13 0.381] 0.254] 0.254] 0.254] 0.127] 0.381] 0.127] 1.57] RH-50 NH-50 1.562 0.844 0.005 0.005 [39.67 [21.44 0.127] 0.127] 1.968 0.031 [49.99 0.787] 2.781 0.630 1.140 0.062 0.015 0.015 [70.64 [16.00 [28.96 1.57] 0.381] 0.381] 0.610 0.088 0.260 0.196 0.125 0.107 0.085 0.438 0.015 0.010 0.010 0.010 0.005 0.015 0.005 0.062 [15.49 [2.24 [6.60 [4.98 [3.18 [2.72 [2.16 [11.13 0.381] 0.254] 0.254] 0.254] 0.127] 0.381] 0.127] 1.57] RH-100, NH-100 Nickel Plated Brass Nut Stainless Steel Stud 3.50 0.031 [88.90 0 .787] 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] .375 0.031 [9.52 0.787] 2.75 0.010 [69.85 0.254] 5.478 0.093 [139.14 2.36] 12 - 24 UNC-2A Thd. Typ. RH-250, NH-250 0.188 0.010 [4.78 0.254] Dia. Typ. 4.50 0.031 [114.30 0.787] Nickel Plated Brass Nut Stainless Steel Stud 0.989 0.031 [25.12 0.787] 1/4 - 20 UNC-2A Thd.Typ. 0.188 0.031 [4.78 0.787] Typ. 2.188 0.031 [55.58 0.787] 2.50 0.010 [63.50 0.254] 0.875 0.010 [22.23 .254] 3.0 0.010 [76.20 .254] 3.875 0.010 [98.42 0.254] 7.0 .093 [177.80 2.36] Document Number 30201 Revision 09-Sep-04 0.770 0.015 [19.56 0.381] 2.125 0.031 [53.98 0.787] 1.25 0.062 [31.75 1.575] 3.0 .031 [76.20 0.787] .312 0.031 [7.92 0.787] 0.188 0.010 [4.78 0.254] Dia. Typ. 1.25 0.062 [31.75 1.575] For technical questions, contact ww2bresistors@vishay.com 0.250 0.031 [6.35 0.787] Typ. 0.955 0.015 [24.26 .381] www.vishay.com 123 RH, NH Vishay Dale Wirewound Resistors, Military, MIL-PRF-18546 Qualified, Type RE, Aluminum Housed, Chassis Mount TECHNICAL SPECIFICATIONS PARAMETER UNIT Temperature Coefficient ppm/C Dielectric Withstanding Voltage VAC Short Time Overload Maximum Working Voltage V Insulation Resistance Terminal Strength lb Solderability OperatingTemperature Range C RH RESISTOR CHARACTERISTICS 100 for 0.1 to 0.99, 50 for 1 to 9.9, 20 for 10 and above 1000 for RH-5, RH-10 and RH-25, 2000 for RH-50, 4500 for RH-100 and RH-250 5 x rated power for 5 seconds (P X R)1/2 10,000 Megohm minimum dry, 1000 Megohm minimum after moisture test 5 minimum for RH-5 and RH-10, 10 minimum for all others MIL-PRF-18546 Type - Meets requirements of ANSI J-STD-002 - 55/+ 250 POWER RATING Vishay RH resistor wattage ratings are based on mounting to the following heat sink: RH-5 and RH-10: 4" x 6" x 2" x 0.040" thick aluminum chassis (129 sq. in. surface area) RH-25: 5" x 7" x 2" x 0.040" thick aluminum chassis (167 sq. in. surface area) RH-50: 12" x 12" x 0.059" thick aluminum panel (291 sq. in. surface area) RH-100 and RH-250: 12" x 12" x 0.125" thick aluminum panel (294 sq. in. surface area) AMBIENT TEMPERATURE DERATING RATED POWER IN % Derating is required for ambient temperatures above 25C, see the following graph. Curves A, B, C apply to operation of unmounted resistors. Curve D applies to all types when mounted to specified heat sink. A = RH-5 and RH-10 size resistor, unmounted B = RH-25 size resistor, unmounted C = RH-50, RH-100 and RH-250 size resistor, unmounted D = All types mounted to recommended aluminum heat sink 120 100 80 D A 60 B C 40 20 0 -55 -50 0 50 150 25 AMBIENT TEMPERATURE IN C Derating is also required when recommended heat sink area is reduced. A = RH-5 and RH-10 size resistor B = RH-25 size resistor C = RH-50, RH-100 and RH-250 size resistor RATED POWER IN % Derating REDUCED HEAT SINK DERATING: 250 100 90 80 A 70 60 B 50 40 C 30 20 10 0 0 20 Heat Sink Derating www.vishay.com 124 40 60 80 100 % OF RECOMMENDED HEAT SINK AREA For technical questions, contact ww2bresistors@vishay.com Document Number 30201 Revision 09-Sep-04 RH, NH Wirewound Resistors, Military, MIL-PRF-18546 Qualified, Type RE, Aluminum Housed, Chassis Mount Vishay Dale MATERIAL SPECIFICATIONS SPECIAL MODIFICATIONS Element: Copper-nickel alloy or nickel-chrome alloy, depending on resistance value A number of special modifications to the aluminum housed resistor style are available upon request. Special modifications include: Core: Ceramic, steatite or alumina, depending on physical size Encapsulant: Silicone molded construction * Terminal configurations and materials Housing: Aluminum with hard anodic coating * Resistance values and tolerances End Caps: Stainless steel * Low resistance temperature coefficient (RTC) Standard Terminals: 100% Sn, w/Nickel underplate, or 60/ 40 Sn/Pb, w/Nickel underplate, coated Copperweld(R) on RH-5 through RH-50 size. Threaded stainless steel terminals on RH-100 and RH-250. * Housing configuration NOTE: Military (RE) parts are only available with 60/40 Sn/Pb finish. Part Marking: DALE, Model, Wattage, Value, Tolerance, Date Code NH NON-INDUCTIVE Models of equivalent physical and electrical specifications are available with non-inductive (Aryton-Perry) winding. They are identified by substituting the letter N for R in the model number (NH-5, for example). * Threaded mounting holes * Preconditioning and other additional testing APPLICABLE MIL SPECIFICATIONS MIL-PRF-18546 is the military specification covering aluminum housed, chassis mount, power resistors. VISHAY RH and NH resistors are listed as qualified on the MIL-PRF-18546 QPL. PERFORMANCE TEST CONDITIONS OF TEST Thermal Shock Rated power applied until thermally stable, then a minimum of 15 minutes at - 55C (0.5% + 0.05) R Short Time Overload 5 x rated power for 5 seconds (0.5% + 0.05) R Dielectric Withstanding Voltage 1000Vrms for RH-5, RH-10 and RH-25; 2000Vrms for RH-50 4500Vrms for RH-100 and RH-250; duration one minute (0.2% + 0.05) R Temperature 250C for 2 hours (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, 100g's for 6 miliseconds, 10 shocks (0.2% + 0.05) R Vibration, High Frequency Frequency varied 10 to 2000Hz, 20g peak, 2 directions 6 hours each (0.2% + 0.05) R Load Life 1000 hours at rated power, + 25C, 1.5 hours "ON", 0.5 hours "OFF" (1.0% + 0.05) R Terminal Strength 30 second, 5 pound pull test for RH-5 and RH-10, 10 pound pull test for other sizes, torque test - 24 pound inch for RH-100 and 32 pound inch for RH-250 (0.2% + 0.05) R Document Number 30201 Revision 09-Sep-04 For technical questions, contact ww2bresistors@vishay.com TEST LIMITS www.vishay.com 125