Vishay RW MIL-PRF-26 Wirewound Resistors

Vishay / Dale RW Series MIL-PRF-26 Axial Leaded Wirewound Resistors come with precision power, silicon coating, and a completely welded construction. MIL-PRF-26 qualified RW wirewound resistors provide exceptional operational stability. The RW wirewound resistors have an operating temperature range from -65°C to +250°C for characteristic U and -65°C to +350°C for characteristic V. These RW wirewound resistors have a minimum insulation resistance of 100MΩ following a moisture test and 1000MΩ when tested in a dry environment. Typical applications include power equipment, military, medical, and circuit breakers.

Features

  • Completely welded structure
  • Exceptional operational stability (typical resistance shift <0.5%)
  • Increased temperature coating (>350°C)
  • MIL-PRF-26 qualified

Applications

  • Circuit breakers
  • Fuses
  • Medical
  • Military and space
  • Power equipment
  • Test and measurement

Technical Specifications

Parameters Values
Temperature coefficient ±20ppm/°C (10Ω and above)
±50ppm/°C (1Ω to 9.9Ω)
±90ppm/°C (below 1Ω)
Tolerance 0.1%, 0.5%, 1%, 5%, and 10%
Operating temperature range Characteristic U -65°C to +250°C
Characteristic V -65°C to +350°C
Minimum insulation resistance 1000MΩ (dry)
100MΩ (after moisture test)
Maximum weight 9g