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SEFUSE SM-B Thermal Fuses

Our SEFUSE SM-B  is a general purpose one shot thermal fuse which uses a fusible alloy inside a ceramic case. The SM-B has a smaller ceramic fuse body of  2 x 6mm.

The fusible alloy interrupts the electrical circuit by melting when ambient temperatures reach abnormal levels, thus preventing both home and industrial electrical equipment catching fire.

A a result of its insulated case, the SM fuse can be applied directly to where it will be most effective.

It has a continuous current rating of 1A/250VAC.


Variety of different uses including:

  • Power supplies
  • Motors /automotives
  • Small kitchen appliances
  • Personal care
  • Air- conditioning and heating
  • Large kitchen appliances
  • Battery packs


  • Smaller diameter one shot thermal fuse
  • Ceramic Fuse body: 2 x 6mm
  • As ceramic acts as insulator, SM-type can be fixed directly to where most effective.
  • Temp range; 82°C to 225°C
  • Rating: 1A/250VAC

Stock Fuses: SM082B0, SM092BO, SM110B0, SM125B0, SM137B0, SM146B0, SM150B0

SEFUSE SM-B Small Thermal Fuses

Technical Line Drawing