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 (DKK) 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 Bi-directional TBU
Datasheet
5.921In 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 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
9.316In 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
17.191In 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
16.622In Stock
18.000Expected 17/06/2026
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
42.878In 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
6.500In 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 240mA 40Vimp
Datasheet
Product Comments
10.732In 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
4.710In Stock
24.000Expected 28/05/2026
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
8.749In 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
6.055In 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
7.150In 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
5.313In Stock
9.000Expected 21/05/2026
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
10.737In 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
5.557In 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
5.226In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 3.000

SMD/SMT DFN 500 V 200 mA - 55 C + 125 C Reel, Cut Tape, MouseReel
Bourns Board Mount Surge Protectors Bi-directional TBU
Datasheet
5.085In 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
4.225In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 3.000

SMD/SMT DFN 500 V 1 A - 55 C + 125 C Reel, Cut Tape, MouseReel
Bourns Board Mount Surge Protectors Bi-directional TBU
Datasheet
8.018In Stock
12.000Expected 15/06/2026
MouseReel Available
Min.: 1
Mult.: 1
Reel: 3.000

SMD/SMT DFN 650 V 600 mA - 55 C + 125 C Reel, Cut Tape, MouseReel
Bourns Board Mount Surge Protectors Bi-directional TBU
Datasheet
8.232In 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