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SEFUSE Thermal Fuses

SEFUSE thermal fuses from Schott Corporation are one-time, non-resettable, temperature-sensitive devices that provides ultimate thermal protection in electrical or electronic circuits.  These one-shot thermal fuses are mainly defined by their temperature setting but also by their current rating, which is the maximum continuous current that can be applied.  They are designed to protect both industrial and consumer electrical equipment from overheating, and cutting off the electrical circuit immediately

SEFUSE thermal cut-offs are highly reliable, offering a range of temperature ratings from 70°C to 240°C whilst handling loads up to 15A/250VAC.  Our thermal fuses carry all major agency approvals such as BEAB, UL, CSA, VDE (to the latest IEC 60 691/EN 60 691 standards) helping speed your own product approval accordingly.

Thermal fuses are ideal for protecting small household appliances such as coffee machines, electric irons, hair dryers and stylers, refrigerators and fan heaters.  They also thermally protect battery packs and battery chargers, power supplies and automotive applications such as blower motors, fan speed dropper resistors and solenoids.

Call us today on 01606 871680 to discuss your application’s thermal sensor requirements.  Using our extensive technical knowledge and innovative supplier base, we will work with you to provide the optimum solution for your product.

  • SEFUSE SF/R One Shot Thermal Fuse

    • One shot thermal fuse
    • Small Fuse body: 4 x 8.5mm
    • High Tm rating for improved product protection
    • Quicker response times
    • Temp range 70°C to 240°C.

    • Rating: 15A/250VAC
    • Stock Fuses: SF70R, SF76E, SF76R, SF81R, SF90R, SF94R, SF113R, SF119E, SF119R, SF129R, SF139R, SF150R, SF167R, SF184E, SF188E, SF214E, SF214R, SF229R, SF240E, SF240R

  • SEFUSE® SFH/R Ultra Reliable One Shot Thermal Fuses

    • Ultra reliable one shot thermal  fuse
    • Higher than normal Tm rating for improved product protection
    • Small fuse body: 4 x 8.5mm
    • Temp range 110°C to 176°C
    • Excellent insulation performance at high temperatures
    • Rating: 15A/250VAC

  • SEFUSE SM/A Ceramic One Shot Thermal Fuses

    • General Purpose One Shot Thermal Fuse
    • Isolated Ceramic Fuse Body: 2.5 x 9mm long
    • Temperature Range: 72°C to 225°C
    • Maximum Rating: 2A/250VAC (also 50VDC ratings)
    • Stock Fuses: SM072A0, SM082A0, SM092A0, SM110A0. SM125AO, SM137A0, SM146A0. SM150AO, SM164A0, SM182A0, SM225A0

  • SEFUSE® SM/B Small Ceramic Thermal Fuses

    • 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® SF/K Slim Thermal Fuse

    • Slimmest one shot thermal fuse diameter within SF range.
    • Slim metal fuse body: 3 x 7.5mm
    • Temp range: 73°C to 187°C
    • Rating: 6A/250VAC
    • Stock Fuses: SF70K, SF90K, SF96K, SF214K

  • SEFUSE® D6SC Ultra Thin SMD Thermal Fuse/Resistor

    • Miniature space saving surface mount thermal fuse/resistor
    • Ultra- thin fuse body: 3 x 4mm
    • Rating: 12A & 15A
    • Ideal for use for smart phones, tablets, notebooks and power tools