TBU®-DT High-Speed Protectors

Bourns TBU®-DT High-Speed Protectors feature very low capacitance to protect against faults caused by short circuits, AC power cross, lightning surges, and induction. These dual unidirectional protectors will trip in less than 1µs when the current reaches the maximum value in one direction only. After the surge, these protectors will reset when the voltage falls to the Vreset level. Bourns TBU-DT protectors are ideal for general electronics and ethernet ports.

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Description Datasheet Availability Pricing (CAD) Filter the results in the table by unit price based on your quantity.
Qty. RoHS ECAD Model Termination Style
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Voltage Rating
Current Rating
Minimum Operating Temperature
Maximum Operating Temperature
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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 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 Dual Unidirectional TBU Device
Datasheet
9,498In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 3,000

SMD/SMT DFN 650 V 400 mA - 40 C + 85 C Reel, Cut Tape, MouseReel
Bourns Board Mount Surge Protectors Dual Unidirectional TBU Device
Datasheet
6,409In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 3,000

SMD/SMT DFN 850 V 400 mA - 40 C + 85 C Reel, Cut Tape, MouseReel
Bourns Board Mount Surge Protectors Dual Unidirectional TBU Device
Datasheet
1,336In Stock
9,000Expected 2026-09-15
MouseReel Available
Min.: 1
Mult.: 1
Reel: 3,000

SMD/SMT DFN 650 V 600 mA - 40 C + 85 C Reel, Cut Tape, MouseReel
Bourns Board Mount Surge Protectors Dual Unidirectional TBU Device
Datasheet
1,051In Stock
9,000Expected 2026-10-06
MouseReel Available
Min.: 1
Mult.: 1
Reel: 3,000

SMD/SMT DFN 850 V 600 mA - 40 C + 85 C Reel, Cut Tape, MouseReel
Bourns Board Mount Surge Protectors Dual Unidirectional TBU Device
Datasheet
Non-Stocked Lead-Time 20 Weeks
Min.: 9,000
Mult.: 3,000
Reel: 3,000

SMD/SMT DFN 650 V 1 A - 40 C + 125 C Reel
Bourns Board Mount Surge Protectors Dual Unidirectional TBU Device
Datasheet
Lead-Time 20 Weeks
MouseReel Available
Min.: 1
Mult.: 1
Reel: 3,000

SMD/SMT DFN 850 V 1 A - 40 C + 125 C Reel, Cut Tape, MouseReel