Pulse Withstanding Chip Resistors

TT Electronics
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With the increased demand for smaller surface mount single-chip circuit protection resistors, IRC developed the PWC Series resistors to provide an economical alternative to bulky molded wirewound components or multi-chip solutions that consume valuable board space. Conventional thick film resistors typically provide power ratings up 1W in a 2512 chip size, but IRC is able to boost this power rating up to 50 percent (1.5W) through a combination of proprietary thick film materials and advanced manufacturing processes.

The PWC series resistors feature high surge and high voltage ratings, making them extremely stable in demanding surge and pulse environments.


  • Higher power ratings
  • Improved working voltage ratings: 150V, 200V, 400V and 500V
  • Excellent pulse withstanding performance
  • Sn/Pb or Pb-free wrap-around terminations
  • Standard chip sizes available from 0805 to 2512


  • Power Supplies
  • Telecommunications
  • Switchgears
  • Portable battery chargers
  • Motor controls
  • Circuit Protection Devices