TBU®-DF Dual Channel High-Speed Protectors

Bourns TBU®-DF Dual Channel High-Speed Protectors offer superior circuit protection and a peak impulse voltage range of 550V to 850V. These TBU protectors protect against faults caused by short circuits, overvoltage transients, and faults in battery cells. The series features MOSFET detection circuit triggering that provides an effective barrier to protect sensitive electronics from large voltages or currents during transient events. Bourns Dual Channel TBU High-Speed Protectors are ideal for RS-485 interfaces, general electronics, and factory automation applications. 

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Description Datasheet Availability Pricing (EUR) 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 I- (TRIGGER)200MA 550V(I
Datasheet
5.454In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 3.000

SMD/SMT DFN-6 550 V 400 mA - 55 C + 125 C Reel, Cut Tape, MouseReel
Bourns Board Mount Surge Protectors 850V 50mA Dual Bi-dir TBU
Datasheet
8.114In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 3.000

SMD/SMT DFN 850 V 100 mA - 55 C + 125 C Reel, Cut Tape, MouseReel
Bourns Board Mount Surge Protectors I- (TRIGGER)100MA 850V(I
Datasheet
7.931In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 3.000

SMD/SMT DFN-6 850 V 200 mA - 55 C + 125 C Reel, Cut Tape, MouseReel
Bourns Board Mount Surge Protectors 850V 300mA Dual Bi-dir TBU
Datasheet
17.675In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 3.000

SMD/SMT DFN 850 V 600 mA - 55 C + 125 C Reel, Cut Tape, MouseReel
Bourns Board Mount Surge Protectors I- (TRIGGER)100MA 550V(I
Datasheet
1.342In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 3.000

SMD/SMT DFN-6 550 V 200 mA - 55 C + 125 C Reel, Cut Tape, MouseReel
Bourns Board Mount Surge Protectors 550V 300mA Dual Bi-dir TBU
Datasheet
7.988In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 3.000

SMD/SMT DFN 550 V 600 mA - 55 C + 125 C Reel, Cut Tape, MouseReel
Bourns Board Mount Surge Protectors I- (TRIGGER)200MA 850V(I
Datasheet
3.401In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 3.000

SMD/SMT DFN-6 850 V 400 mA - 55 C + 125 C Reel, Cut Tape, MouseReel
Bourns Board Mount Surge Protectors 550V 50mA Dual Bi-dir TBU
Datasheet
251In Stock
9.000Expected 2/19/2026
MouseReel Available
Min.: 1
Mult.: 1
Reel: 3.000

SMD/SMT DFN 550 V 100 mA - 55 C + 125 C Reel, Cut Tape, MouseReel
Bourns Board Mount Surge Protectors 550V 500mA Dual Bi-dir TBU
Datasheet
Non-Stocked Lead-Time 20 Weeks
Min.: 9.000
Mult.: 3.000
Reel: 3.000

SMD/SMT DFN 550 V 1 A - 55 C + 125 C Reel
Bourns Board Mount Surge Protectors 850V 500mA Dual Bi-dir TBU
Datasheet
Non-Stocked Lead-Time 20 Weeks
Min.: 9.000
Mult.: 3.000
Reel: 3.000

SMD/SMT DFN 850 V 500 mA - 55 C + 125 C Reel