Bourns MF-GSMF PPTC Resettable Fuses

Bourns MF-GSMF Multifuse® Polymer PTC Resettable Fuses are 3425 (8764 metric) size surface mount resettable fuses. Bourns MF-GSMF PPTC fuses offer high voltage (36VDC) and hold current (3.0A) ratings with initial resistance as low as 0.01Ω. Bourns MF-GSMF uses Bourns freeXpansion™ design for increased performance, including higher hold currents, higher voltages, improved resistance stability, and smaller footprints. This Bourns series is designed for telematics with CAN, Bluetooth®, WLAN, GPS, and UMTS/LTE. Other applications include industrial controls, IEEE ports, and portable consumer electronic I/O port protection.


  • High power ratings
  • Low profile
  • Compatible with lead and lead-free solder reflow profiles
  • Surface mount packaging for automated assembly
  • Standard 8764 mm (3425 mils) footprint
  • RoHS compliant and halogen-free


  • Telematics with CAN, BLUETOOTH®, WLAN, GPS, and UMTS/LTE
  • Industrial controls
  • IEEE ports


  • 20A maximum current rating
  • 36V maximum voltage
  • 3.0A hold current
  • 5.2A trip current
  • 6mΩ resistance
  • -40°C to +85°C operating temperature range
  • 1.6mm height x 9mm length x 6.7mm width
Published: 2019-05-16 | Updated: 2023-03-22