Wirewound Resistors, Military, MIL-PRF-26 Qualified, Type Precision Po

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Wirewound Resistors, Military, MIL-PRF-26 Qualified, Type Precision Po

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Vishay Dale
Wirewound Resistors, Military, MIL-PRF-26 Qualified, Type Precision Power, Silicone Coated
High temperature coating Complete welded construction Meets applicable requirements MIL-PRF-26 Available non-inductive styles (type with Aryton-Perry winding lowest reactive components Excellent stability operation
STANDARD ELECTRICAL SPECIFICATIONS
MODEL MIL-PRF-26 POWER RATING*** P25°C 0.05% thru thru RESISTANCE RANGE MIL. RANGE SHOWN BOLD FACE
WEIGHT (Typical)
0.125 0.15 0.499 0.499 3.4k 3.4k 3.4k 0.21 0.75 1.3k 0.499 1.3k 0.499 4.9k 4.9k 4.9k 0.23 2.74k 0.499 2.74k 0.499 10.4k 10.4k 10.4k 0.34 0.499 2.74k 0.499 10.4k 10.4k 10.4k 0.34 RW70** 2.74k RS-1M 1.32k 0.499 1.67k 0.499 6.85k 6.85k 6.85k 0.30 RS-2 0.499 12.7k 0.499 12.7k 47.1k 47.1k 47.1k 2.10 RS-2M 0.499 4.49k 0.499 4.49k 18.74k 18.74k 18.74k 0.65 RS-2B 3.75 0.499 6.5k 0.499 6.5k 24.5k 24.5k 24.5k 0.70 RS-2B-300 0.499 6.5k 24.5k 24.5k 24.5k 0.70 RW79** 6.49k RS-2C 3.25 0.499 8.6k 0.499 8.6k 32.3k 32.3k 32.3k RS-2C-17 3.25 0.499 6.8k 0.499 8.6k 32.3k 32.3k 32.3k RS-2C-23 3.25 32.3k RW69* 2.0k RS-5 0.499 25.7k 0.499 25.7k 95.2k 95.2k 95.2k RS-5-69 0.499 25.7k 95.2k 95.2k 95.2k RW74** 24.3k RS-5-70 95.2k RW67* 8.2k RS-7 0.499 41.4k 0.499 41.4k 154k 154k 154k RS-10 10.0 13.0 0.499 73.4k 0.499 73.4k 273k 273k 273k RS-10-38 10.0 0.499 73.4k 273k 273k 273k RW78** 10.0 71.5k RS-10-39 13.0 273k RW68* 11.0 Available tolerance these parts above, below **Available tolerance these parts 0.5% resistance values above, 0.1% resistance values 0.499 above. ***Vishay Dale models have power ratings depending operation temperature stability requirements. NOTE: Shaded area indicates most popular models. RS-1/8 RS-1/4 RS-1/2 RS-1A RS-1A-300
TYPE
0.05%
0.1%
0.25%
0.5%
TECHNICAL SPECIFICATIONS
PARAMETER UNIT Temperature Coefficient ppm/°C Dielectric Withstanding Voltage Short Time Overload Maximum Working Voltage Insulation Resistance Terminal Strength Solderability Operating Temperature Range Power Rating RESISTOR CHARACTERISTICS below 9.9, above minimum RS-1/8 thru RS-1A, 1000 minimum others rated power seconds 3.75 watt size smaller, rated power seconds watt size greater R)1/2 1000 Megohm minimum dry, Megohm minimum after moisture test minimum RS-1/8 thru RS-1A, minimum others MIL-PRF-26 type Meets requirements ANSI J-STD-002 type Terminals 60/40 electro plated facilitate soldering Characterisitic 65/+ 250, Characteristic 65/+ Characteristic 250°C max. spot temperature, 0.5% max. 2000 load life Characteristic 350°C max. spot temperature, 3.0% max. 2000 load life RESISTANCE technical questions, contact ww2bresistors@vishay.com
ORDERING INFORMATION
RS-1A MODEL 1.0% TOLERANCE Document Number 30204 Revision 19-Feb-03
www.vishay.com
Wirewound Resistors, Military, MIL-PRF-26 Qualified, Type Precision Power, Silicone Coated
DIMENSIONS
1.50 [38.10]* Min.
Vishay Dale
MODEL RS-1/8
DIMENSIONS inches [millimeters] (Max.)** 0.281 [7.14] 0.065 0.015 [1.65 0.381] 0.085 0.020 [2.16 0.508]
0.155 0.015 [3.94 0.381] 0.250 0.031 [6.35 0.787] 0.312 0.016 [7.92 0.406]
0.020 0.002 [0.508 0.051] 0.020 0.002 [0.508 0.051]
RS-1/4 RS-1/2
some standard reel pack methods, leads trimmed shorter length than shown. NOTE: RS-1/8 terminal length will 1.0" [25.4mm] minimum.
0.328 0.078 0.016 0.031 0.020 0.002 [8.33] [1.98 0.406 0.787] [0.508 0.051] 0.094 0.031 [2.39 0.787] 0.110 0.015 [2.79 0.381] 0.250 0.031 [6.35 0.787] 0.185 0.015 [4.70 0.381] 0.187 0.031 [4.75 0.787] 0.218 0.031 [5.54 0.787] 0.218 0.031 [5.54 0.787] 0.218 0.031 [5.54 0.787] 0.312 0.031 [7.92 0.787] 0.312 0.031 [7.92 0.787] 0.312 0.031 [7.92 0.787] 0.312 0.031 [7.92 7.87] 0.375 0.031 [9.53 0.787] 0.375 0.031 [9.53 0.787] 0.375 0.031 [9.53 0.787] 0.020 0.002 [0.508 0.051] 0.020 0.002 [0.508 0.051] 0.040 0.002 [1.02 0.051] 0.032 0.002 [0.813 0.051] 0.032 0.002 [0.813 0.051] 0.040 0.002 [1.02 0.051] 0.032 0.002 [0.813 0.051] 0.032 0.002 [0.813 0.051] 0.040 0.002 [1.02 0.051] 0.040 0.002 [1.02 0.051] 0.040 0.002 [1.02 0.051] 0.040 0.002 [1.02 0.051] 0.040 0.002 [1.02 0.051] 0.040 0.002 [1.02 0.051] 0.040 0.002 [1.02 0.051]
MATERIAL SPECIFICATIONS
Element: Copper-nickel alloy nickel-chrome alloy, depending resistance value Core: Ceramic, steatite alumina, depending physical size Coating: Special high temperature silicone Standard Terminals: Tinned Copperweld® Caps: Stainless steel Deviations RS-1/8: Thermoset silicone molded construction, endcaps will nickel-silver alloy terminals will tinned copper Part Marking: DALE, Model, Wattage*, Value, Tolerance, Date Code *Wattage marked part will characteristic
RS-1A 0.406 0.031 0.437 RS-1A-300 [10.31 0.787] [11.10] RS-1M RS-2 RS-2M 0.285 0.025 [7.24 0.635] 0.311 [7.90]
0.625 0.062 0.765 [15.88 1.57] [19.43] 0.500 0.062 0.562 [12.70 1.57] [14.27]
RS-2B 0.560 0.062 0.622 RS-2B-300 [14.22 1.57] [15.80] RS-2C RS-2C-17 RS-2C-23 RS-5 RS-5-69 RS-5-70 0.500 0.062 0.593 [12.70 1.57] [15.06] 0.500 0.062 0.593 [12.70 1.57] [15.06] 0.500 0.062 0.593 [12.70 1.57] [15.06] 0.875 0.062 [22.23 1.57] [25.4]
NON-INDUCTIVE
Models equivalent physical electrical specifications available with non-inductive (Aryton-Perry) winding. They identified substituting letter model number (NS-5, example). conditions apply: models, divide maximum resistance values Body O.D. NS-2C exceed that RS-2C 010"
RATED POWER
0.875 0.062 0.937 [22.23 1.57] [23.80] 0.875 0.062 [22.23 1.57] [25.4]
RS-7
CHAR. 0-65
1.22 0.062 1.28 [30.99 1.57] [32.51] 1.78 0.062 1.87 [45.21 1.57] [47.50] 1.78 0.062 1.84 [45.21 1.57] [46.74] 1.78 0.062 1.87 [45.21 1.57] [47.50]
RS-10 RS-10-38
CHAR.
RS-10-39
Derating
AMBIENT TEMPERATURE
(Max.) dimension clean lead clean lead.
PERFORMANCE*
TEST Thermal Shock Short Time Overload Dielectric Withstanding Voltage Temperature Storage High Temperature Exposure Moisture Resistance Shock, Specified Pulse Vibration, High Frequency Load Life CONDITIONS TEST TEST LIMITS Characteristic Characteristic (0.2% 0.05) (2.0% 0.05) (0.2% 0.05) (2.0% 0.05) (0.1% 0.05) (0.1% 0.05) (0.2% 0.05) (2.0% 0.05) (0.5% 0.05) (2.0% 0.05) (0.2% 0.05) (2.0% 0.05) (0.1% 0.05) (0.2% 0.05) (0.1% 0.05) (0.2% 0.05) (0.5% 0.05) (3.0% 0.05) (0.1% 0.05) (1.0% 0.05)
Rated power applied until thermally stable, then min. minutes 55°C rated power (3.75 watt smaller), rated power watt larger) seconds minimum RS-1/8 thru RS-1A, 1000 others, duration minute 65°C hours hours 250°C, 350°C MIL-STD-202 Method 106, applicable MIL-STD-202 Method 213, 100g's milliseconds, shocks Frequency varied 2000Hz, peak, directions hours each 2000 hours rated power, 25°C, hours "ON", hours "OFF" sec., pull test (depending size), Terminal Strength torsion test alternating directions, 360° each *All figures shown maximum, based upon testing requirements MIL-PRF-26. Document Number 30204 Revision 19-Feb-03 technical questions, contact ww2bresistors@vishay.com
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Wirewound Resistors, Military, MIL-PRF-26 Qualified, Type Precision Po

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