Mini-Breakers (Thermal Cutoff Devices)

Bourns Mini-Breakers (Thermal Cutoff Devices) feature a low or high current type and overtemperature / overcurrent protection for lithium polymer and prismatic cells. These devices also control abnormal, excessive currents instantaneously. Bourns Mini-Breakers are RoHS compliant and halogen free. The modules provide a robust and complete alternative for the protection of lithium cells in a compact, single-package solution.

Results: 34
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Description Datasheet Availability Pricing (CAD) Filter the results in the table by unit price based on your quantity.
Qty. RoHS ECAD Model Contact Rating
Rated Temperature
Tolerance
Maximum Temperature
Maximum Voltage
Minimum Holding Voltage
Resistance
Maximum Breaking Current
Maximum Leakage Current
Length
Width
Height
Approvals
Series
Packaging
Bourns Thermal Cutoffs Trip Temp 72c 5c TOL
Datasheet
4,447In Stock
Min.: 1
Mult.: 1

12 A + 72 C +/- 5 C + 72 C 28 VDC / 12 A, 100 cycles 2 V 15 mOhms 30 A 150 mA 4.8 mm 2.8 mm 0.89 mm UL, cUL, TUV NR-C Bulk
Bourns Thermal Cutoffs HC TCO 82C BL-51
Datasheet
10,000In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 5,000

+ 82 C +/- 5 C + 82 C 28 VDC / 25 A, 100 cycles 3 V 7 mOhms 60 A 200 mA 5.4 mm 3.2 mm 1.17 mm UL, cUL, TUV SA Reel, Cut Tape, MouseReel
Bourns Thermal Cutoffs TRIP TEMP 90C 5C TOL
Datasheet
3,121In Stock
Min.: 1
Mult.: 1

+ 90 C +/- 5 C 28 VDC / 25 A, 100 cycles 3 VDC 5 mOhms 80 A 200 mA 5.8 mm 3.75 mm 1.15 mm UL, cUL, TUV HC Bulk
Bourns Thermal Cutoffs TRIP TEMP 77C 5C TOL
Datasheet
7,557In Stock
Min.: 1
Mult.: 1

12 A + 77 C +/- 5 C + 77 C 28 VDC / 5 A, 100 cycles 2 V 10 mOhms 40 A 150 mA 5.8 mm 3.75 mm 1.15 mm UL, cUL, TUV LC Bulk
Bourns Thermal Cutoffs HC TCO 77C BL-51
Datasheet
25,964In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 5,000

+ 77 C +/- 5 C + 77 C 28 VDC / 25 A, 100 cycles 3 V 7 mOhms 60 A 200 mA 5.4 mm 3.2 mm 1.17 mm UL, cUL, TUV SA Reel, Cut Tape, MouseReel
Bourns Thermal Cutoffs 72C Reinforced Cover SMD HC TCO
Datasheet
2,619In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 5,000

+ 72 C +/- 5 C + 72 C 28 VDC / 25 A, 100 cycles 3 V 5 mOhms 50 A 200 mA 4.4 mm 2.8 mm 0.94 mm UL, cUL, TUV SC Reel, Cut Tape, MouseReel
Bourns Thermal Cutoffs TRIP TEMP 77C 5C TOL
Datasheet
3,152In Stock
Min.: 1
Mult.: 1

+ 77 C +/- 5 C 28 VDC / 25 A, 100 cycles 3 VDC 5 mOhms 80 A 200 mA 5.8 mm 3.75 mm 1.15 mm UL, cUL, TUV HC Bulk
Bourns Thermal Cutoffs TRIP TEMP 72C 5C TOL
Datasheet
2,496In Stock
Min.: 1
Mult.: 1

12 A + 72 C +/- 5 C 28 VDC / 5 A, 100 cycles 2 VDC 10 mOhms 40 A 150 mA 5.8 mm 3.75 mm 1.15 mm UL, cUL, TUV LC Bulk
Bourns Thermal Cutoffs 77C Low Profile SMD HC TCO
Datasheet
9,540In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 5,000

+ 77 C +/- 5 C + 77 C 28 VDC / 25 A, 100 cycles 3 V 5 mOhms 50 A 200 mA 4.4 mm 2.8 mm 0.94 mm UL, cUL, TUV SC Reel, Cut Tape, MouseReel
Bourns Thermal Cutoffs Trip Temp 72c 5c TOL
Datasheet
3,041In Stock
Min.: 1
Mult.: 1

25 A + 72 C +/- 5 C + 72 C 28 VDC / 25 A, 100 cycles 2 V 5 mOhms 60 A 200 mA 4.8 mm 2.8 mm 0.89 mm UL, cUL, TUV NR-A Bulk
Bourns Thermal Cutoffs HC TCO 85C BL-51
Datasheet
9,950In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 5,000

+ 85 C +/- 5 C + 85 C 28 VDC / 25 A, 100 cycles 3 V 7 mOhms 60 A 200 mA 5.4 mm 3.2 mm 1.17 mm UL, cUL, TUV SA Reel, Cut Tape, MouseReel
Bourns Thermal Cutoffs 72C Low Profile SMD HC TCO
Datasheet
5,344In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 5,000

+ 72 C +/- 5 C + 72 C 28 VDC / 25 A, 100 cycles 3 V 5 mOhms 50 A 200 mA 4.4 mm 2.8 mm 0.94 mm UL, cUL, TUV SC Reel, Cut Tape, MouseReel
Bourns Thermal Cutoffs TRIP TEMP 82C 5C TOL
Datasheet
1,823In Stock
Min.: 1
Mult.: 1

12 A + 82 C +/- 5 C + 82 C 28 VDC / 5 A, 100 cycles 2 V 10 mOhms 40 A 150 mA 5.8 mm 3.75 mm 1.15 mm UL, cUL, TUV LC Bulk
Bourns Thermal Cutoffs Super HC TCO 90C w/o projection
Datasheet
1,471In Stock
Min.: 1
Mult.: 1

35 A + 90 C +/- 5 C + 90 C 28 VDC / 35 A, 100 cycles 3.5 V 2 mOhms 60 A 200 mA 6.95 mm 3.95 mm 1.1 mm UL, cUL, TUV AC Bulk
Bourns Thermal Cutoffs 82C Low Profile SMD HC TCO
Datasheet
2,516In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 5,000

+ 82 C +/- 5 C + 82 C 28 VDC / 25 A, 100 cycles 3 V 5 mOhms 50 A 200 mA 4.4 mm 2.8 mm 0.94 mm UL, cUL, TUV SC Reel, Cut Tape, MouseReel
Bourns Thermal Cutoffs HC TCO 72C BL-51
Datasheet
4,387In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 5,000

+ 72 C +/- 5 C + 72 C 28 VDC / 25 A, 100 cycles 3 V 7 mOhms 60 A 200 mA 5.4 mm 3.2 mm 1.17 mm UL, cUL, TUV SA Reel, Cut Tape, MouseReel
Bourns Thermal Cutoffs 85C Reinforced Cover SMD HC TCO
Datasheet
4,704In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 5,000

+ 85 C +/- 5 C + 85 C 28 VDC / 25 A, 100 cycles 3 V 5 mOhms 50 A 200 mA 4.4 mm 2.8 mm 1.07 mm UL, cUL, TUV SC Reel, Cut Tape, MouseReel
Bourns Thermal Cutoffs 85C Low Profile SMD HC TCO
Datasheet
12,666In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 5,000

+ 85 C +/- 5 C + 85 C 28 VDC / 25 A, 100 cycles 3 V 5 mOhms 50 A 200 mA 4.4 mm 2.8 mm 0.94 mm UL, cUL, TUV SC Reel, Cut Tape, MouseReel
Bourns Thermal Cutoffs Super HC TCO 77C w/o projection
Datasheet
291In Stock
Min.: 1
Mult.: 1

35 A + 77 C +/- 5 C + 77 C 28 VDC / 35 A, 100 cycles 3.5 V 2 mOhms 60 A 200 mA 6.95 mm 3.95 mm 1.1 mm UL, cUL, TUV AC Bulk
Bourns Thermal Cutoffs TRIP TEMP 72C 5C TOL
Datasheet
87In Stock
Min.: 1
Mult.: 1

+ 72 C +/- 5 C + 72 C 28 VDC / 25 A, 100 cycles 3 V 5 mOhms 80 A 200 mA 5.8 mm 3.75 mm 1.15 mm UL, cUL, TUV HC Bulk
Bourns Thermal Cutoffs Trip Temp 85c 5c TOL
Datasheet
395In Stock
Min.: 1
Mult.: 1

12 A + 85 C +/- 5 C + 85 C 28 VDC / 12 A, 100 cycles 2 V 15 mOhms 30 A 150 mA 4.8 mm 2.8 mm 0.89 mm UL, cUL, TUV NR-C Bulk
Bourns Thermal Cutoffs 77C Reinforced Cover SMD HC TCO
Datasheet
94In Stock
5,000Expected 2026-07-07
MouseReel Available
Min.: 1
Mult.: 1
: 5,000

+ 77 C +/- 5 C + 77 C 28 VDC / 25 A, 100 cycles 3 V 5 mOhms 50 A 200 mA 4.4 mm 2.8 mm 1.07 mm UL, cUL, TUV SC Reel, Cut Tape, MouseReel
Bourns Thermal Cutoffs Trip Temp 85c 5c TOL
Datasheet
5,000Expected 2026-07-10
Min.: 1
Mult.: 1

25 A + 85 C +/- 5 C + 85 C 28 VDC / 25 A, 100 cycles 2 V 5 mOhms 60 A 200 mA 4.8 mm 2.8 mm 0.89 mm UL, cUL, TUV NR-A Bulk
Bourns Thermal Cutoffs Super HC TCO 77C w/o projection
Datasheet
Non-Stocked Lead-Time 8 Weeks
Min.: 1
Mult.: 1

35 A + 72 C +/- 5 C 28 VDC / 35 A, 100 cycles 3.5 VDC 2 mOhms 60 A 200 mA 6.95 mm 3.95 mm 1.1 mm UL, cUL, TUV AC Bulk
Bourns Thermal Cutoffs Super HC TCO 82C w/o projection
Datasheet
Non-Stocked Lead-Time 8 Weeks
Min.: 3,000
Mult.: 3,000

35 A + 82 C +/- 5 C 28 VDC / 35 A, 100 cycles 3.5 VDC 2 mOhms 60 A 200 mA 6.95 mm 3.95 mm 1.1 mm UL, cUL, TUV AC Bulk