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Bourns Multifuse Product Line Announces New Series of High Temperature PPTC Resettable Fuses

December 22, 2020

The Bourns Multifuse Product Line is pleased to announce the release of the new Model MF-FSHT Series High Temperature Surface Mount Polymer Positive Temperature Coefficient (PPTC) Resettable Fuses. The new series provides Ihold current ratings from 0.05 A to 0.16 A at the 12 V maximum rated voltage and a maximum operating temperature up to +125 °C.

The addition of the new Model MF-FSHT series provides a broader standard high temperature PPTC offering to customers with high working temperature requirements, particularly in industrial and other demanding applications. The new Bourns Model MF-FSHT series utilizes Bourns’ innovative freeXpansion design that increases the performance of the resettable fuse with:

  •   •  Higher hold current ratings (Ihold)
  •   •  Improved resistance stability
  •   •  Higher maximum voltage ratings (Vmax)
  •   •  Smaller footprints


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  •    –   Operating temperature range up to 125 °C
  •    –   Higher hold currents at elevated temperatures
  •    –   Low thermal derating factor
  •    –   Small 0603 footprint size with low profile for space-constrained applications
  •    –   Surface mount packaging for automated assembly
  •    –   RoHS compliant
  •    –   cUL and TÜV recognized


  •    –   Overcurrent surge protection of electronic equipment required to operate at elevated temperatures
  •    –   Resettable fault protection for industrial and consumer electronic equipment

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