TBU® Circuit Protection Devices

Bourns TBU® Circuit Protection Devices block transients in nanoseconds through a current-disconnecting mechanism instead of diverting or shunting the surge to ground. These high-speed surge protection components are designed to protect against faults caused by short circuits, AC power cross, induction, and lightning surges. Bourns TBU Circuit Protection Devices are resettable for full functionality after multiple fault events and ideal for telecommunications, industrial, and data communications systems.

Results: 43
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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 Termination Style
Package/Case
Voltage Rating
Current Rating
Minimum Operating Temperature
Maximum Operating Temperature
Packaging
Bourns Board Mount Surge Protectors Dual Unidirectional TBU Device
Datasheet
2,194In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 3,000

SMD/SMT DFN 850 V 200 mA - 40 C + 85 C Reel, Cut Tape, MouseReel
Bourns Board Mount Surge Protectors Bi-directional TBU
Datasheet
1,706In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 3,000

SMD/SMT DFN 400 V 600 mA - 55 C + 125 C Reel, Cut Tape, MouseReel
Bourns Board Mount Surge Protectors Dual 50ohm TBU Devce Bi-directional
Datasheet
5,722In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 3,000

SMD/SMT DFN 850 V 200 mA - 55 C + 125 C Reel, Cut Tape, MouseReel
Bourns Board Mount Surge Protectors Dual Unidirectional TBU Device
Datasheet
9,266In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 3,000

SMD/SMT DFN 300 V 100 mA - 40 C + 85 C Reel, Cut Tape, MouseReel
Bourns Board Mount Surge Protectors 200mA 850Vimp
Datasheet
Product Comments
994In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 3,000

SMD/SMT 850 V 200 mA - 40 C + 85 C Reel, Cut Tape, MouseReel
Bourns Board Mount Surge Protectors Bi-directional TBU
Datasheet
37,320In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 3,000

SMD/SMT DFN 650 V 400 mA - 55 C + 125 C Reel, Cut Tape, MouseReel
Bourns Board Mount Surge Protectors Bi-directional TBU
Datasheet
3,108In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 3,000

SMD/SMT DFN 400 V 200 mA - 55 C + 125 C Reel, Cut Tape, MouseReel
Bourns Board Mount Surge Protectors Bi-directional TBU
Datasheet
6,488In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 3,000

SMD/SMT DFN 400 V 1 A - 55 C + 125 C Reel, Cut Tape, MouseReel
Bourns Board Mount Surge Protectors Bi-directional TBU
Datasheet
5,053In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 3,000

SMD/SMT DFN 500 V 400 mA - 55 C + 125 C Reel, Cut Tape, MouseReel
Bourns Board Mount Surge Protectors 240mA 40Vimp
Datasheet
Product Comments
8,732In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 3,000

SMD/SMT 40 V 240 mA - 55 C + 125 C Reel, Cut Tape, MouseReel
Bourns Board Mount Surge Protectors 100mA 850Vimp
Datasheet
Product Comments
3,710In Stock
24,000Expected 05/05/2026
MouseReel Available
Min.: 1
Mult.: 1
Reel: 3,000

SMD/SMT 850 V 100 mA - 40 C + 85 C Reel, Cut Tape, MouseReel
Bourns Board Mount Surge Protectors Bi-directional TBU
Datasheet
6,854In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 3,000

SMD/SMT DFN 250 V 100 mA - 55 C + 125 C Reel, Cut Tape, MouseReel
Bourns Board Mount Surge Protectors Bi-directional TBU
Datasheet
5,261In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 3,000

SMD/SMT DFN 250 V 400 mA - 55 C + 125 C Reel, Cut Tape, MouseReel
Bourns Board Mount Surge Protectors Bi-directional TBU
Datasheet
5,651In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 3,000

SMD/SMT DFN 250 V 600 mA - 55 C + 125 C Reel, Cut Tape, MouseReel
Bourns Board Mount Surge Protectors Bi-directional TBU
Datasheet
11,502In Stock
9,000Expected 31/08/2026
MouseReel Available
Min.: 1
Mult.: 1
Reel: 3,000

SMD/SMT DFN 250 V 1 A - 55 C + 125 C Reel, Cut Tape, MouseReel
Bourns Board Mount Surge Protectors Bi-directional TBU
Datasheet
8,237In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 3,000

SMD/SMT DFN 400 V 100 mA - 55 C + 125 C Reel, Cut Tape, MouseReel
Bourns Board Mount Surge Protectors Bi-directional TBU
Datasheet
5,699In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 3,000

SMD/SMT DFN 400 V 400 mA - 55 C + 125 C Reel, Cut Tape, MouseReel
Bourns Board Mount Surge Protectors Bi-directional TBU
Datasheet
5,195In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 3,000

SMD/SMT DFN 500 V 100 mA - 55 C + 125 C Reel, Cut Tape, MouseReel
Bourns Board Mount Surge Protectors Bi-directional TBU
Datasheet
4,590In Stock
9,000Expected 14/09/2026
MouseReel Available
Min.: 1
Mult.: 1
Reel: 3,000

SMD/SMT DFN 500 V 600 mA - 55 C + 125 C Reel, Cut Tape, MouseReel
Bourns Board Mount Surge Protectors Bi-directional TBU
Datasheet
13,938In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 3,000

SMD/SMT DFN 650 V 100 mA - 55 C + 125 C Reel, Cut Tape, MouseReel
Bourns Board Mount Surge Protectors Bi-directional TBU
Datasheet
6,612In Stock
17,500Expected 26/06/2026
MouseReel Available
Min.: 1
Mult.: 1
Reel: 3,000

SMD/SMT DFN 650 V 200 mA - 55 C + 125 C Reel, Cut Tape, MouseReel
Bourns Board Mount Surge Protectors Bi-directional TBU
Datasheet
7,922In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 3,000

SMD/SMT DFN 650 V 1 A - 55 C + 125 C Reel, Cut Tape, MouseReel
Bourns Board Mount Surge Protectors Bi-directional TBU
Datasheet
10,693In Stock
6,000Expected 20/07/2026
MouseReel Available
Min.: 1
Mult.: 1
Reel: 3,000

SMD/SMT DFN 850 V 100 mA - 55 C + 125 C Reel, Cut Tape, MouseReel
Bourns Board Mount Surge Protectors Bi-directional TBU
Datasheet
11,356In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 3,000

SMD/SMT DFN 850 V 200 mA - 55 C + 125 C Reel, Cut Tape, MouseReel
Bourns Board Mount Surge Protectors Bi-directional TBU
Datasheet
5,760In Stock
6,000Expected 28/05/2026
MouseReel Available
Min.: 1
Mult.: 1
Reel: 3,000

SMD/SMT DFN 850 V 400 mA - 55 C + 125 C Reel, Cut Tape, MouseReel