AD & SD Miniature Thermal Cutoff Devices

Bourns AD and SD Miniature Thermal Cutoff (TCO) devices are resettable mini-breaker devices offering advanced overtemperature protection technologies. These TCO devices use a highly-rated corrosion-resistant bimetal mechanism for better endurance in humid environments. The SD and AD TCO devices are either non-automatically resettable (self-hold function) or automatically resettable (non-self-hold function). These TCO devices feature overcurrent protection and control abnormal, excessive current virtually instantaneously, up to rated limits.

Results: 15
Select Image Part #
 Mfr.
Description Datasheet Availability Pricing (RON) Filter the results in the table by unit price based on your quantity.
Qty. RoHS ECAD Model Contact Rating
Rated Temperature
Maximum Voltage
Minimum Holding Voltage
Resistance
Maximum Breaking Current
Maximum Leakage Current
Length
Width
Height
Qualification
Series
Packaging
Bourns Thermal Cut-offs TCO, High Current, SMD, 90C, Self Hold AEC-Q200
Datasheet
15.399In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 4.000

8 A + 90 C 28 VDC / 8 A, 100 cycles 8 V 4 mOhms 35 A 300 mA 6.95 mm 3.75 mm 1.4 mm AEC-Q200 SD Reel, Cut Tape, MouseReel
Bourns Thermal Cut-offs TCO, High Current, SMD, 85C, Self Hold AEC-Q200
Datasheet
3.777In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 4.000

8 A + 85 C 28 VDC / 8 A, 100 cycles 8 V 4 mOhms 35 A 300 mA 6.95 mm 3.75 mm 1.4 mm AEC-Q200 SD Reel, Cut Tape, MouseReel
Bourns Thermal Cut-offs TCO, High Current, SMD, 55C, Self Hold AEC-Q200
Datasheet
3.309In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 4.000

8 A + 55 C 28 VDC / 8 A, 100 cycles 8 V 4 mOhms 35 A 300 mA 6.95 mm 3.75 mm 1.4 mm AEC-Q200 SD Reel, Cut Tape, MouseReel
Bourns Thermal Cut-offs TCO, High Current, Axial Lead, 82C, Self Hold AEC-Q200
Datasheet
2.844In Stock
Min.: 1
Mult.: 1

8 A + 82 C 28 VDC / 8 A, 100 cycles 8 V 4 mOhms 35 A 300 mA 6.95 mm 3.75 mm 1.4 mm AEC-Q200 AD Bulk
Bourns Thermal Cut-offs TCO, High Current, SMD, 55C, non Self Hold AEC-Q200
Datasheet
3.913In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 4.000

8 A + 55 C 14 VDC / 8 A, 10000 cycles 4 mOhms 8 A 300 mA 6.95 mm 3.75 mm 1.4 mm AEC-Q200 SD Reel, Cut Tape, MouseReel
Bourns Thermal Cut-offs TCO, High Current, Axial Lead, 55C, Self Hold AEC-Q200
Datasheet
2.469In Stock
Min.: 1
Mult.: 1

8 A + 55 C 28 VDC / 8 A, 100 cycles 8 V 4 mOhms 35 A 300 mA 6.95 mm 3.75 mm 1.4 mm AEC-Q200 AD Bulk
Bourns Thermal Cut-offs TCO, High Current, SMD, 82C, non Self Hold AEC-Q200
Datasheet
5.002In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 4.000

8 A + 82 C 14 VDC / 8 A, 10000 cycles 4 mOhms 8 A 300 mA 6.95 mm 3.75 mm 1.4 mm AEC-Q200 SD Reel, Cut Tape, MouseReel
Bourns Thermal Cut-offs TCO, High Current, SMD, 72C, Self Hold AEC-Q200
Datasheet
257In Stock
4.000Expected 8/14/2026
MouseReel Available
Min.: 1
Mult.: 1
: 4.000

8 A + 72 C 28 VDC / 8 A, 100 cycles 8 V 4 mOhms 35 A 300 mA 6.95 mm 3.75 mm 1.4 mm AEC-Q200 SD Reel, Cut Tape, MouseReel
Bourns Thermal Cut-offs TCO, High Current, SMD, 77C, Self Hold AEC-Q200
Datasheet
3.840In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 4.000

8 A + 77 C 28 VDC / 8 A, 100 cycles 8 V 4 mOhms 35 A 300 mA 6.95 mm 3.75 mm 1.4 mm AEC-Q200 SD Reel, Cut Tape, MouseReel
Bourns Thermal Cut-offs TCO, High Current, Axial Lead, 85C, Self Hold AEC-Q200
Datasheet
2.945In Stock
Min.: 1
Mult.: 1

8 A + 85 C 28 VDC / 8 A, 100 cycles 8 V 4 mOhms 35 A 300 mA 6.95 mm 3.75 mm 1.4 mm AEC-Q200 AD Bulk
Bourns Thermal Cut-offs TCO, High Current, SMD, 82C, Self Hold AEC-Q200
Datasheet
3.979In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 4.000

8 A + 82 C 28 VDC / 8 A, 100 cycles 8 V 4 mOhms 35 A 300 mA 6.95 mm 3.75 mm 1.4 mm AEC-Q200 SD Reel, Cut Tape, MouseReel
Bourns Thermal Cut-offs TCO, High Current, SMD, 150C, non Self Hold AEC-Q200
Datasheet
3.655In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 4.000

8 A + 150 C 14 VDC / 8 A, 10000 cycles 4 mOhms 8 A 300 mA 6.95 mm 3.75 mm 1.4 mm AEC-Q200 SD Reel, Cut Tape, MouseReel
Bourns Thermal Cut-offs TCO, High Current, Axial Lead, 150C, non Self Hold AEC-Q200
Datasheet
2.910In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 3.000

8 A + 150 C 14 VDC 4 mOhms 8 A 6.95 mm 3.75 mm 1.4 mm AEC-Q200 AD Reel, Cut Tape, MouseReel
Bourns Thermal Cut-offs TCO, High Current, SMD, 90C, non Self Hold AEC-Q200
Datasheet
1.586In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 4.000

8 A + 90 C 14 VDC / 8 A, 10000 cycles 4 mOhms 8 A 300 mA 6.95 mm 3.75 mm 1.4 mm AEC-Q200 SD Reel, Cut Tape, MouseReel
Bourns Thermal Cut-offs TCO, High Current, SMD, 150C, Self Hold AEC-Q200
Datasheet
21In Stock
4.000On Order
MouseReel Available
Min.: 1
Mult.: 1
: 4.000

8 A + 150 C 28 VDC / 8 A, 100 cycles 8 V 4 mOhms 35 A 300 mA 6.95 mm 3.75 mm 1.4 mm AEC-Q200 SD Reel, Cut Tape, MouseReel