Thermal Cut-offs – Mouser Singapore

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B Series Bimetal Snap-Action Temperature Switches

Microtherm Sentronic B Series Bimetal Snap-Action Temperature Switches feature a bimetallic snap-disc with a fixed switching temperature as the switching mechanism. The function of these switches includes typically closed or normally open operation, commonly used as a temperature limiter to protect or control devices from overheating. The B Series offers a current rating of 1-13A max to 30A, up to 10,000 switching cycles, with various packaging options. These switches also feature non-current carrying brass contacts. Microtherm Sentronic B Series Bimetal Snap-Action Temperature Switches are ideal for motors, transformers, electronics, sensors, pumps, converters, and more applications.

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Part #

Thermal Cut-offs Bi-metallic Disc, Thermal Switch, Normally Closed (NC), SPST 125C switch temp.

B12A12505L310100U186
Microtherm Sentronic
1: $12.48
590In Stock

Mfr. Part No.
B12A12505L310100U186

Mouser Part No
256-B2A2505L3000U86

Microtherm Sentronic

Thermal Cut-offs Bi-metallic Disc, Thermal Switch, Normally Closed (NC), SPST 125C switch temp.

Learn More

Datasheet

590In Stock

$12.48

$10.81

$8.73

$7.39

View

Min.: 1
Mult.: 1

B12A

Bulk

Thermal Cut-offs Bi-metallic Disc, Thermal Switch, Normally Closed (NC), SPST 150C switch temp.

B12A15005 L370100U253
Microtherm Sentronic
1: $8.70
710In Stock

Mfr. Part No.
B12A15005 L370100U253

Mouser Part No
256-B2A5005L3000U253

Microtherm Sentronic

Thermal Cut-offs Bi-metallic Disc, Thermal Switch, Normally Closed (NC), SPST 150C switch temp.

Learn More

Datasheet

710In Stock

$8.70

$7.34

$6.81

$6.19

View

Min.: 1
Mult.: 1

B12A

Bulk

Thermal Cut-offs Bi-metallic Disc, Thermal Switch, Normally Closed (NC), SPST 90C switch temp.

B12A09005L310100
Microtherm Sentronic
1: $8.30
524In Stock

Mfr. Part No.
B12A09005L310100

Mouser Part No
256-B12A09005L310100

Microtherm Sentronic

Thermal Cut-offs Bi-metallic Disc, Thermal Switch, Normally Closed (NC), SPST 90C switch temp.

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Datasheet

524In Stock

$8.30

$7.01

$6.51

$5.91

View

Min.: 1
Mult.: 1

B12A

Bulk

Thermal Cut-offs Bi-metallic Disc, Thermal Switch, Normally Closed (NC), SPST 125C switch temp.

B12A12505L310100
Microtherm Sentronic
1: $11.97
95In Stock

Mfr. Part No.
B12A12505L310100

Mouser Part No
256-B12A12505L310100

Microtherm Sentronic

Thermal Cut-offs Bi-metallic Disc, Thermal Switch, Normally Closed (NC), SPST 125C switch temp.

Learn More

Datasheet

95In Stock

$11.97

$10.37

$8.37

$7.09

View

Min.: 1
Mult.: 1

B12A

Bulk

Thermal Cut-offs Bi-metallic Disc, Thermal Switch, Normally Closed (NC), SPST 70C switch temp.

B12A07005L310100
Microtherm Sentronic
1: $11.97
5In Stock

Mfr. Part No.
B12A07005L310100

Mouser Part No
256-B12A07005L310100

Microtherm Sentronic

Thermal Cut-offs Bi-metallic Disc, Thermal Switch, Normally Closed (NC), SPST 70C switch temp.

Learn More

Datasheet

5In Stock

$11.97

$10.37

$8.37

$7.09

View

Min.: 1
Mult.: 1

B12A

Bulk

Thermal Cut-offs Bi-metallic Disc, Thermal Switch, Normally Closed (NC), SPST 155C switch temp.

B12A15505 L370100
Microtherm Sentronic
1: $11.97
100In Stock

Mfr. Part No.
B12A15505 L370100

Mouser Part No
256-B12A15505L310100

Microtherm Sentronic

Thermal Cut-offs Bi-metallic Disc, Thermal Switch, Normally Closed (NC), SPST 155C switch temp.

Learn More

Datasheet

100In Stock

$11.97

$10.37

$8.37

$7.09

View

Min.: 1
Mult.: 1

B12A

Bulk

Thermal Cut-offs Bi-metallic Disc, Thermal Switch, Normally Closed (NC), SPST 110C switch temp.

B12A11005L310100
Microtherm Sentronic
1: $8.30
77In Stock

Mfr. Part No.
B12A11005L310100

Mouser Part No
256-B12A11005L310100

Microtherm Sentronic

Thermal Cut-offs Bi-metallic Disc, Thermal Switch, Normally Closed (NC), SPST 110C switch temp.

Learn More

Datasheet

77In Stock

$8.30

$7.01

$6.51

$5.91

View

Min.: 1
Mult.: 1

B12A

Bulk

Thermal Cut-offs Bi-metallic Disc, Thermal Switch, Normally Closed (NC), SPST 80C switch temp.

B12A08005L310100U112
Microtherm Sentronic
1: $8.55
304In Stock

Mfr. Part No.
B12A08005L310100U112

Mouser Part No
256-B2A08005L3000U2

Microtherm Sentronic

Thermal Cut-offs Bi-metallic Disc, Thermal Switch, Normally Closed (NC), SPST 80C switch temp.

Learn More

Datasheet

304In Stock

$8.55

$7.20

$6.69

$6.07

View

Min.: 1
Mult.: 1

B12A

Bulk

Thermal Cut-offs Bi-metallic Disc, Thermal Switch, Normally Closed (NC), SPST 140C switch temp.

B12A14005L310100
Microtherm Sentronic
1: $11.98
29In Stock

Mfr. Part No.
B12A14005L310100

Mouser Part No
256-B12A14005L310100

Microtherm Sentronic

Thermal Cut-offs Bi-metallic Disc, Thermal Switch, Normally Closed (NC), SPST 140C switch temp.

Learn More

Datasheet

29In Stock

$11.98

$10.38

$8.38

$7.09

View

Min.: 1
Mult.: 1

B12A

Bulk

Thermal Cut-offs Bi-metallic Disc, Thermal Switch, Normally Closed (NC), SPST 150C switch temp.

B12A15005 L370100
Microtherm Sentronic
1: $11.97
42In Stock

Mfr. Part No.
B12A15005 L370100

Mouser Part No
256-B12A15005L310100

Microtherm Sentronic

Thermal Cut-offs Bi-metallic Disc, Thermal Switch, Normally Closed (NC), SPST 150C switch temp.

Learn More

Datasheet

42In Stock

$11.97

$10.37

$8.37

$7.09

View

Min.: 1
Mult.: 1

B12A

Bulk

Thermal Cut-offs Bi-metallic Disc, Thermal Switch, Normally Closed (NC), SPST 80C switch temp.

B12A08005L310100
Microtherm Sentronic
1: $11.97
17In Stock

Mfr. Part No.
B12A08005L310100

Mouser Part No
256-B12A08005L310100

Microtherm Sentronic

Thermal Cut-offs Bi-metallic Disc, Thermal Switch, Normally Closed (NC), SPST 80C switch temp.

Learn More

Datasheet

17In Stock

$11.97

$10.37

$8.37

$7.09

View

Min.: 1
Mult.: 1

B12A

Bulk

Thermal Cut-offs Bi-metallic Disc, Thermal Switch, Normally Closed (NC), SPST 160C switch temp.

B12A16005 L370100
Microtherm Sentronic
1: $11.97
1,019In Stock

Mfr. Part No.
B12A16005 L370100

Mouser Part No
256-B12A16005L310100

Microtherm Sentronic

Thermal Cut-offs Bi-metallic Disc, Thermal Switch, Normally Closed (NC), SPST 160C switch temp.

Learn More

Datasheet

1,019In Stock

$11.97

$10.37

$8.37

$7.09

View

Min.: 1
Mult.: 1

B12A

Bulk

Thermal Cut-offs Bi-metallic Disc, Thermal Switch, Normally Closed (NC), SPST 180C switch temp.

B12A18005 L370100
Microtherm Sentronic
1: $8.30
1,038In Stock

Mfr. Part No.
B12A18005 L370100

Mouser Part No
256-B12A18005L310100

Microtherm Sentronic

Thermal Cut-offs Bi-metallic Disc, Thermal Switch, Normally Closed (NC), SPST 180C switch temp.

Learn More

Datasheet

1,038In Stock

$8.30

$7.01

$6.51

$5.91

View

Min.: 1
Mult.: 1

B12A

Bulk

Thermal Cut-offs Bi-metallic Disc, Thermal Switch, Normally Closed (NC), SPST 70C switch temp.

B12A07005L310100U112
Microtherm Sentronic
1: $12.33
931In Stock

Mfr. Part No.
B12A07005L310100U112

Mouser Part No
256-B2A07005L3000U2

Microtherm Sentronic

Thermal Cut-offs Bi-metallic Disc, Thermal Switch, Normally Closed (NC), SPST 70C switch temp.

Learn More

Datasheet

931In Stock

$12.33

$10.69

$8.62

$7.31

View

Min.: 1
Mult.: 1

B12A

Bulk

Thermal Cut-offs Bi-metallic Disc, Thermal Switch, Normally Closed (NC), SPST 70C switch temp.

B12A07005L310100U186
Microtherm Sentronic
1: $12.47
942In Stock

Mfr. Part No.
B12A07005L310100U186

Mouser Part No
256-B2A07005L3000U86

Microtherm Sentronic

Thermal Cut-offs Bi-metallic Disc, Thermal Switch, Normally Closed (NC), SPST 70C switch temp.

Learn More

Datasheet

942In Stock

$12.47

$10.80

$8.72

$7.39

View

Min.: 1
Mult.: 1

B12A

Bulk

Thermal Cut-offs Bi-metallic Disc, Thermal Switch, Normally Closed (NC), SPST 120C switch temp.

B12A12005L310100U253
Microtherm Sentronic
1: $8.70
968In Stock

Mfr. Part No.
B12A12005L310100U253

Mouser Part No
256-B2A2005L3000U253

Microtherm Sentronic

Thermal Cut-offs Bi-metallic Disc, Thermal Switch, Normally Closed (NC), SPST 120C switch temp.

Learn More

Datasheet

968In Stock

$8.70

$7.34

$6.81

$6.19

View

Min.: 1
Mult.: 1

B12A

Bulk

Thermal Cut-offs Bi-metallic Disc, Thermal Switch, Normally Closed (NC), SPST 125C switch temp.

B12A12505L310100U112
Microtherm Sentronic
1: $8.55
936In Stock

Mfr. Part No.
B12A12505L310100U112

Mouser Part No
256-B2A2505L3000U2

Microtherm Sentronic

Thermal Cut-offs Bi-metallic Disc, Thermal Switch, Normally Closed (NC), SPST 125C switch temp.

Learn More

Datasheet

936In Stock

$8.55

$7.20

$6.69

$6.07

View

Min.: 1
Mult.: 1

B12A

Bulk

Thermal Cut-offs Bi-metallic Disc, Thermal Switch, Normally Closed (NC), SPST 125C switch temp.

B12A12505L310100U253
Microtherm Sentronic
1: $12.57
993In Stock

Mfr. Part No.
B12A12505L310100U253

Mouser Part No
256-B2A2505L3000U253

Microtherm Sentronic

Thermal Cut-offs Bi-metallic Disc, Thermal Switch, Normally Closed (NC), SPST 125C switch temp.

Learn More

Datasheet

993In Stock

$12.57

$10.88

$8.78

$7.45

View

Min.: 1
Mult.: 1

B12A

Bulk

Thermal Cut-offs Bi-metallic Disc, Thermal Switch, Normally Closed (NC), SPST 125C switch temp.

B12A12505L310100U294
Microtherm Sentronic
1: $8.70
960In Stock

Mfr. Part No.
B12A12505L310100U294

Mouser Part No
256-B2A2505L3000U294

Microtherm Sentronic

Thermal Cut-offs Bi-metallic Disc, Thermal Switch, Normally Closed (NC), SPST 125C switch temp.

Learn More

Datasheet

960In Stock

$8.70

$7.34

$6.81

$6.19

View

Min.: 1
Mult.: 1

B12A

Bulk

Thermal Cut-offs Bi-metallic Disc, Thermal Switch, Normally Closed (NC), SPST 140C switch temp.

B12A14005L310100U253
Microtherm Sentronic
1: $12.57
968In Stock

Mfr. Part No.
B12A14005L310100U253

Mouser Part No
256-B2A4005L3000U253

Microtherm Sentronic

Thermal Cut-offs Bi-metallic Disc, Thermal Switch, Normally Closed (NC), SPST 140C switch temp.

Learn More

Datasheet

968In Stock

$12.57

$10.88

$8.78

$7.45

View

Min.: 1
Mult.: 1

B12A

Bulk

Thermal Cut-offs Bi-metallic Disc, Thermal Switch, Normally Closed (NC), SPST 140C switch temp.

B12A14005L310100U294
Microtherm Sentronic
1: $8.70
1,004In Stock

Mfr. Part No.
B12A14005L310100U294

Mouser Part No
256-B2A4005L3000U294

Microtherm Sentronic

Thermal Cut-offs Bi-metallic Disc, Thermal Switch, Normally Closed (NC), SPST 140C switch temp.

Learn More

Datasheet

1,004In Stock

$8.70

$7.34

$6.81

$6.19

View

Min.: 1
Mult.: 1

B12A

Bulk

Thermal Cut-offs Bi-metallic Disc, Thermal Switch, Normally Closed (NC), SPST 140C switch temp.

B12A14005L310100U186
Microtherm Sentronic
1: $8.63
821In Stock

Mfr. Part No.
B12A14005L310100U186

Mouser Part No
256-B2A4005L3000U86

Microtherm Sentronic

Thermal Cut-offs Bi-metallic Disc, Thermal Switch, Normally Closed (NC), SPST 140C switch temp.

Learn More

Datasheet

821In Stock

$8.63

$7.27

$6.76

$6.13

View

Min.: 1
Mult.: 1

B12A

Bulk

Thermal Cut-offs Bi-metallic Disc, Thermal Switch, Normally Closed (NC), SPST 150C switch temp.

B12A15005 L370100U186B245
Microtherm Sentronic
1: $13.75
1,003In Stock

Mfr. Part No.
B12A15005 L370100U186B245

Mouser Part No
256-B2A5005L3000B245

Microtherm Sentronic

Thermal Cut-offs Bi-metallic Disc, Thermal Switch, Normally Closed (NC), SPST 150C switch temp.

Learn More

Datasheet

1,003In Stock

$13.75

$11.91

$9.62

$8.15

View

Min.: 1
Mult.: 1

B12A

Bulk

Thermal Cut-offs Bi-metallic Disc, Thermal Switch, Normally Closed (NC), SPST 150C switch temp.

B12A15005 L370100U112
Microtherm Sentronic
1: $12.33
997In Stock

Mfr. Part No.
B12A15005 L370100U112

Mouser Part No
256-B2A5005L3000U2

Microtherm Sentronic

Thermal Cut-offs Bi-metallic Disc, Thermal Switch, Normally Closed (NC), SPST 150C switch temp.

Learn More

Datasheet

997In Stock

$12.33

$10.69

$8.62

$7.31

View

Min.: 1
Mult.: 1

B12A

Bulk

Thermal Cut-offs Bi-metallic Disc, Thermal Switch, Normally Closed (NC), SPST 150C switch temp.

B12A15005 L370100U294
Microtherm Sentronic
1: $12.57
969In Stock

Mfr. Part No.
B12A15005 L370100U294

Mouser Part No
256-B2A5005L3000U294

Microtherm Sentronic

Thermal Cut-offs Bi-metallic Disc, Thermal Switch, Normally Closed (NC), SPST 150C switch temp.

Learn More

Datasheet

969In Stock

$12.57

$10.88

$8.78

$7.45

View

Min.: 1
Mult.: 1

B12A

Bulk

B Series Bimetal Snap-Action Temperature Switches

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