Board Mount Surge Protectors – Mouser Puerto Rico

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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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Image	Part #	Mfr.	Description	Datasheet	Availability	Pricing (USD) Filter the results in the table by unit price based on your quantity.	Qty.	Termination Style	Package / Case	Voltage Rating	Current Rating	Minimum Operating Temperature	Maximum Operating Temperature	Packaging
Board Mount Surge Protectors I- (TRIGGER)200MA 550V(I TBU-DF055-200-WH Bourns 1: $3.65 A tariff of 21% may be applied if shipping to the United States. 6,902In Stock	Mfr. Part # TBU-DF055-200-WH Mouser Part # 652-TBU-DF055-200-WH	Bourns	Board Mount Surge Protectors I- (TRIGGER)200MA 550V(I Learn More about Bourns tbu high speed protectors	Datasheet	6,902In Stock	Cut Tape $3.65 $2.77 $1.95 $1.61 $1.60 Reel $1.31 MouseReel Available A tariff of 21% may be applied if shipping to the United States.	Min.: 1 Mult.: 1 : 3,000	SMD/SMT	DFN-6	550 V	400 mA	- 55 C	+ 125 C	Reel, Cut Tape, MouseReel
Board Mount Surge Protectors 850V 50mA Dual Bi-dir TBU TBU-DF085-050-WH Bourns 1: $3.49 A tariff of 21% may be applied if shipping to the United States. 4,341In Stock	Mfr. Part # TBU-DF085-050-WH Mouser Part # 652-TBU-DF085-050-WH	Bourns	Board Mount Surge Protectors 850V 50mA Dual Bi-dir TBU Learn More about Bourns tbu high speed protectors	Datasheet	4,341In Stock	Cut Tape $3.49 $2.77 $1.61 $1.43 $1.41 Reel $1.32 MouseReel Available A tariff of 21% may be applied if shipping to the United States.	Min.: 1 Mult.: 1 : 3,000	SMD/SMT	DFN	850 V	100 mA	- 55 C	+ 125 C	Reel, Cut Tape, MouseReel
Board Mount Surge Protectors 550V 50mA Dual Bi-dir TBU TBU-DF055-050-WH Bourns 1: $3.54 A tariff of 21% may be applied if shipping to the United States. 7,578In Stock	Mfr. Part # TBU-DF055-050-WH Mouser Part # 652-TBU-DF055-050-WH	Bourns	Board Mount Surge Protectors 550V 50mA Dual Bi-dir TBU Learn More about Bourns tbu high speed protectors	Datasheet	7,578In Stock	Cut Tape $3.54 $2.77 $1.95 $1.61 $1.60 Reel $1.50 MouseReel Available A tariff of 21% may be applied if shipping to the United States.	Min.: 1 Mult.: 1 : 3,000	SMD/SMT	DFN	550 V	100 mA	- 55 C	+ 125 C	Reel, Cut Tape, MouseReel
Board Mount Surge Protectors 550V 300mA Dual Bi-dir TBU TBU-DF055-300-WH Bourns 1: $2.83 A tariff of 21% may be applied if shipping to the United States. 1,387In Stock 6,000Expected 10/14/2026	Mfr. Part # TBU-DF055-300-WH Mouser Part # 652-TBU-DF055-300-WH	Bourns	Board Mount Surge Protectors 550V 300mA Dual Bi-dir TBU Learn More about Bourns tbu high speed protectors	Datasheet	1,387In Stock 6,000Expected 10/14/2026	Cut Tape $2.83 $1.94 $1.65 $1.61 $1.60 Reel $1.50 MouseReel Available A tariff of 21% may be applied if shipping to the United States.	Min.: 1 Mult.: 1 : 3,000	SMD/SMT	DFN	550 V	600 mA	- 55 C	+ 125 C	Reel, Cut Tape, MouseReel
Board Mount Surge Protectors I- (TRIGGER)100MA 850V(I TBU-DF085-100-WH Bourns 1: $3.48 A tariff of 21% may be applied if shipping to the United States. 5,953In Stock	Mfr. Part # TBU-DF085-100-WH Mouser Part # 652-TBU-DF085-100-WH	Bourns	Board Mount Surge Protectors I- (TRIGGER)100MA 850V(I Learn More about Bourns tbu high speed protectors	Datasheet	5,953In Stock	Cut Tape $3.48 $3.12 $2.43 $2.01 $1.59 Reel $1.59 MouseReel Available A tariff of 21% may be applied if shipping to the United States.	Min.: 1 Mult.: 1 : 3,000	SMD/SMT	DFN-6	850 V	200 mA	- 55 C	+ 125 C	Reel, Cut Tape, MouseReel
Board Mount Surge Protectors I- (TRIGGER)200MA 850V(I TBU-DF085-200-WH Bourns 1: $3.82 A tariff of 21% may be applied if shipping to the United States. 5,343In Stock	Mfr. Part # TBU-DF085-200-WH Mouser Part # 652-TBU-DF085-200-WH	Bourns	Board Mount Surge Protectors I- (TRIGGER)200MA 850V(I Learn More about Bourns tbu high speed protectors	Datasheet	5,343In Stock	Cut Tape $3.82 $2.77 $1.95 $1.61 $1.60 Reel $1.50 MouseReel Available A tariff of 21% may be applied if shipping to the United States.	Min.: 1 Mult.: 1 : 3,000	SMD/SMT	DFN-6	850 V	400 mA	- 55 C	+ 125 C	Reel, Cut Tape, MouseReel
Board Mount Surge Protectors 850V 300mA Dual Bi-dir TBU TBU-DF085-300-WH Bourns 1: $2.83 A tariff of 21% may be applied if shipping to the United States. 4,545In Stock 9,000Expected 4/1/2027	Mfr. Part # TBU-DF085-300-WH Mouser Part # 652-TBU-DF085-300-WH	Bourns	Board Mount Surge Protectors 850V 300mA Dual Bi-dir TBU Learn More about Bourns tbu high speed protectors	Datasheet	4,545In Stock 9,000Expected 4/1/2027	Cut Tape $2.83 $1.94 $1.65 $1.61 $1.58 Reel $1.50 MouseReel Available A tariff of 21% may be applied if shipping to the United States.	Min.: 1 Mult.: 1 : 3,000	SMD/SMT	DFN	850 V	600 mA	- 55 C	+ 125 C	Reel, Cut Tape, MouseReel
Board Mount Surge Protectors I- (TRIGGER)100MA 550V(I TBU-DF055-100-WH Bourns 1: $2.83 A tariff of 21% may be applied if shipping to the United States. 9,000Expected 5/12/2027	Mfr. Part # TBU-DF055-100-WH Mouser Part # 652-TBU-DF055-100-WH	Bourns	Board Mount Surge Protectors I- (TRIGGER)100MA 550V(I Learn More about Bourns tbu high speed protectors	Datasheet	9,000Expected 5/12/2027	Cut Tape $2.83 $1.94 $1.65 $1.61 $1.60 Reel $1.50 MouseReel Available A tariff of 21% may be applied if shipping to the United States.	Min.: 1 Mult.: 1 : 3,000	SMD/SMT	DFN-6	550 V	200 mA	- 55 C	+ 125 C	Reel, Cut Tape, MouseReel
Board Mount Surge Protectors 550V 500mA Dual Bi-dir TBU TBU-DF055-500-WH Bourns 6,000: $1.61 A tariff of 21% may be applied if shipping to the United States. Non-Stocked Lead-Time 20 Weeks	Mfr. Part # TBU-DF055-500-WH Mouser Part # 652-TBU-DF055-500-WH	Bourns	Board Mount Surge Protectors 550V 500mA Dual Bi-dir TBU Learn More about Bourns tbu high speed protectors	Datasheet	Non-Stocked Lead-Time 20 Weeks	Cut Tape $1.61 A tariff of 21% may be applied if shipping to the United States.	Min.: 6,000 Mult.: 3,000 : 3,000	SMD/SMT	DFN	550 V	1 A	- 55 C	+ 125 C	Reel
Board Mount Surge Protectors 850V 500mA Dual Bi-dir TBU TBU-DF085-500-WH Bourns 6,000: $1.61 A tariff of 21% may be applied if shipping to the United States. Non-Stocked Lead-Time 20 Weeks	Mfr. Part # TBU-DF085-500-WH Mouser Part # 652-TBU-DF085-500-WH	Bourns	Board Mount Surge Protectors 850V 500mA Dual Bi-dir TBU Learn More about Bourns tbu high speed protectors	Datasheet	Non-Stocked Lead-Time 20 Weeks	Cut Tape $1.61 View Quote A tariff of 21% may be applied if shipping to the United States.	Min.: 6,000 Mult.: 3,000 : 3,000	SMD/SMT	DFN	850 V	500 mA	- 55 C	+ 125 C	Reel

TBU®-DF Dual Channel High-Speed Protectors

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