3BT and 4BT
Miniature hermetic thermostats from Ø5.5 mm, MIL-PRF-24236
Miniature hermetic thermostats from Ø5.5 mm, MIL-PRF-24236
Thermostats protect equipment against overheating by opening or closing a circuit when a specific temperature is reached. SCN supplies bimetal thermostats from Sensata KLIXON, including the compact 3BT and 4BT series with a diameter of 7 mm, as well as thermostats in probe versions for mounting close to the heat source. Typical applications are overheating protection of motors, transformers, heating elements, battery packs and electronics. Our engineers help you choose the right switching temperature, contact function (normally open or normally closed), current rating and mounting for your application.

Miniature hermetic thermostats from Ø5.5 mm, MIL-PRF-24236
Miniature hermetic thermostats from Ø5.5 mm, MIL-PRF-24236


SPST/SPDT thermostat, up to 14 A, -18 to +232 °C
SPST/SPDT thermostat, up to 14 A, -18 to +232 °C

Compact snap-disc thermostat, 0.250 inch deep
Compact snap-disc thermostat, 0.250 inch deep

Hermetic snap-disc thermostat, tamper-proof setting
Hermetic snap-disc thermostat, tamper-proof setting

Hermetic SPDT thermostat, up to 3 A, -54 to 204 °C
Hermetic SPDT thermostat, up to 3 A, -54 to 204 °C

PCB thermostat in 8-pin DIP package, up to 1 A
PCB thermostat in 8-pin DIP package, up to 1 A

Bimetal thermostat in TO-220 package, up to 0.5 A
Bimetal thermostat in TO-220 package, up to 0.5 A

SPST thermostat, NO or NC, up to 7 A, from 2.5 g
SPST thermostat, NO or NC, up to 7 A, from 2.5 g


Hermetic SPST space thermostat, NASA screened
Hermetic SPST space thermostat, NASA screened

Hermetic half-inch SPST thermostat, up to 7 A
Hermetic half-inch SPST thermostat, up to 7 A


Probe-mounted thermostats, SPST NO/NC, hermetically sealed
Probe-mounted thermostats, SPST NO/NC, hermetically sealed
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