High Temperature Resettable Fuses - 0805 size

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The 0805 (2012 Metric) size surface mount device is now Bourns’ smallest size resettable fuse to use high temperature PTC material. Bourns’ high temperature materials operate up to 125 °C and have been primarily designed for automotive applications. However, with the trend to increase board density in other areas such as industrial, telecom and consumer electronics, the operating temperature of some electronics is increasing. This makes the miniature size PPTC with an elevated operating temperature ideal for high density boards.


  • Operating temperature range up to 125 °C
  • Low thermal derating factor
  • Higher hold currents at elevated temperature
  • RoHS compliant


  • Protection of automotive circuitry including engine control modules
  • Overcurrent surge protection of electronic equipment required to operate at high operating temperature ranges
  • Resettable fault protection of general electronic equipment