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 (IDR) 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
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 Dual Unidirectional TBU Device
Datasheet
6.041In Stock
3.000Expected 13/07/2026
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 Bi-directional TBU
Datasheet
10.736In 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 50ohm TBU Devce Bi-directional
Datasheet
5.673In 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 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 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 Bi-directional TBU
Datasheet
24.862In 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
19.514In 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
43.415In 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
2.558In 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 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
10.874In 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
6.554In 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
4.341In 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
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
10.788In 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
4.404In 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
6.889In Stock
9.000Expected 06/10/2026
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
4.554In 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 Bi-directional TBU
Datasheet
10.787In 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
15.270In 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
4.887In Stock
6.000Expected 24/02/2027
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
10.415In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 3.000

SMD/SMT DFN 850 V 400 mA - 55 C + 125 C Reel, Cut Tape, MouseReel
Bourns Board Mount Surge Protectors Dual Unidirectional TBU Device
Datasheet
9.396In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 3.000

SMD/SMT DFN 650 V 400 mA - 40 C + 85 C Reel, Cut Tape, MouseReel