Multifuse® High-Temperature Polymer PTC Resettable Fuses

Bourns is pleased to announce the expansion of its industry-leading portfolio of 125°C rated polymer PTC resettable fuse thermistors. The new MF-MSHT (1812) and MF-FSHT (0603) model families join Bourns’ already successful line of MF-USHT, MF-NSHT, and MF-PSHT model families that come in standard surface mount 1210, 1206 0805 EIA footprints, respectively.



  • Resettable polymer PTC thermistors for high-reliability overcurrent and over-temperature protection
  • Operating temperature range from -40°C to 125°C
  • Higher hold currents (up to 1.75 A) at elevated ambient operating temperatures, with lower thermal derating factors, compared to traditional 85 ˚C rated consumer-grade models
  • Up to 42 VDC and 40 A maximum ratings
  • EIA 0603 to 1812 surface mount footprints
  • Tape and reel packaging for automated assembly
  • AEC-Q200 compliant and automotive grade
  • UL, CSA, and TÜV recognized
  • IATF 16949 certified production site
  • RoHS compliant


For more info, contact Deon