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 (GBP) 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
5,499In 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 200mA 850Vimp
Datasheet
Product Comments
994In 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
5,722In 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 Dual Unidirectional TBU Device
Datasheet
9,246In 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 100mA 850Vimp
Datasheet
Product Comments
27,396In 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 Bi-directional TBU
Datasheet
26,381In Stock
39,000Expected 09/09/2026
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
40,260In 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
3,108In 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
4,664In Stock
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 240mA 40Vimp
Datasheet
Product Comments
8,327In 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
5,202In Stock
6,000Expected 21/05/2026
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
6,674In 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 Bi-directional TBU
Datasheet
5,041In 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
4,647In 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
11,327In Stock
9,000Expected 31/08/2026
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
7,732In 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
6,308In 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
4,804In 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
8,990In Stock
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
12,365In 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
8,753In Stock
18,000Expected 02/06/2026
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
3,161In Stock
18,000Expected 21/07/2026
MouseReel Available
Min.: 1
Mult.: 1
: 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
7,077In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 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
11,236In 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
10,484In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 3,000

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