HPWC is TT Electronics' latest pulse withstanding chip resistor. It is essentially a variant of the existing PWC with no laser trimming applied. This maximises the level of surge performance available in a single-sided flat chip design.HPWC withstands up to 6.5kV peak for a 1.2/50µs surge and up to 3kW for a 0.1ms pulse. It is ideal for protection and discharge applications in compact power supplies and power control circuits where a resistance tolerance of 5% is adequate.


  • Robust, trim-free thick film element
  • Tolerance to 5%
  • Takes 1.2/50µs surge voltage up to 6.5kV
  • Peak power up to 3kW for 0.1ms
  • Four sizes from 0805 to 2512
  • Ratings up to 2W
  • High stability & reliability
  • Saves PCB area compared to multiple chip solutions to achieve the same pulse performance
  • Avoidance of current crowding by removing laser trim areas improves reliability


  • Power supplies
  • Circuit breakers
  • Motor drives
  • Medical monitor input protection
  • Inrush current limiting
  • External line surge protection


High pulse withstanding chip resistors datasheet