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 (TWD) 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 100mA 850Vimp
Datasheet
Product Comments
24,236In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 3,000

SMD/SMT 850 V 100 mA - 40 C + 85 C Reel, Cut Tape, MouseReel
Bourns Board Mount Surge Protectors Dual Unidirectional TBU Device
Datasheet
8,234In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 3,000

SMD/SMT DFN 300 V 100 mA - 40 C + 85 C Reel, Cut Tape, MouseReel
Bourns Board Mount Surge Protectors Bi-directional TBU
Datasheet
5,944In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 3,000

SMD/SMT DFN 250 V 200 mA - 55 C + 125 C Reel, Cut Tape, MouseReel
Bourns Board Mount Surge Protectors Dual Unidirectional TBU Device
Datasheet
9,041In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 3,000

SMD/SMT DFN 850 V 600 mA - 40 C + 85 C Reel, Cut Tape, MouseReel
Bourns Board Mount Surge Protectors 200mA 850Vimp
Datasheet
Product Comments
984In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 3,000

SMD/SMT 850 V 200 mA - 40 C + 85 C Reel, Cut Tape, MouseReel
Bourns Board Mount Surge Protectors Dual 50ohm TBU Devce Bi-directional
Datasheet
5,628In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 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
24,355In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 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
17,931In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 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
43,286In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 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
2,546In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 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
3,237In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 3,000

SMD/SMT DFN 400 V 400 mA - 55 C + 125 C Reel, Cut Tape, MouseReel
Bourns Board Mount Surge Protectors 240mA 40Vimp
Datasheet
Product Comments
8,227In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 3,000

SMD/SMT 40 V 240 mA - 55 C + 125 C Reel, Cut Tape, MouseReel
Bourns Board Mount Surge Protectors Bi-directional TBU
Datasheet
9,803In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 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
3,819In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 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
4,637In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 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
8,956In Stock
18,000Expected 2/1/2027
MouseReel Available
Min.: 1
Mult.: 1
: 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
5,604In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 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
7,678In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 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
3,984In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 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
6,663In Stock
9,000Expected 10/6/2026
MouseReel Available
Min.: 1
Mult.: 1
: 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
4,028In Stock
6,000Expected 12/22/2026
MouseReel Available
Min.: 1
Mult.: 1
: 3,000

SMD/SMT DFN 500 V 400 mA - 55 C + 125 C Reel, Cut Tape, MouseReel
Bourns Board Mount Surge Protectors Bi-directional TBU
Datasheet
7,837In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 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
7,426In Stock
81,000On Order
MouseReel Available
Min.: 1
Mult.: 1
: 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
9,526In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 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
3,455In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 3,000

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