SC Mini-Breakers (Miniature Thermal Cutoff Device)

Bourns SC Mini-Breakers are surface-mount miniature resettable Thermal Cutoff (TCO) devices. These mini-breaker devices feature current capabilities from 5.5A up to 8A at 60°C and are available in two height options. The low-profile SCxxAAB version offers a height of just 0.94mm ±0.05mm, whereas the reinforced SCxxAAA version is at 1.07mm ±0.05mm height. This design of the Bourns SC series helps to withstand the high injection molding pressures experienced during USB cable manufacturing.  

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Description Datasheet Availability Pricing (USD) Filter the results in the table by unit price based on your quantity.
Qty. RoHS ECAD Model 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 Cut-offs 72C Reinforced Cover SMD HC TCO
Datasheet
4,619In 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 Cut-offs 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 Cut-offs 72C Low Profile SMD HC TCO
Datasheet
5,347In 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 Cut-offs 82C Low Profile SMD HC TCO
Datasheet
2,618In 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 Cut-offs 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 Cut-offs 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 Cut-offs 77C Reinforced Cover SMD HC TCO
Datasheet
294In Stock
5,000Expected 2026/06/12
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 Cut-offs 82C Reinforced Cover SMD HC TCO
Datasheet
Non-Stocked Lead-Time 8 Weeks
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 1.07 mm UL, cUL, TUV SC Reel, Cut Tape, MouseReel