Board Mount Surge Protectors

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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.

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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 100mA 850Vimp P850-G120-WH Bourns 1: $3.09 23,384In Stock	Mfr. Part # P850-G120-WH Mouser Part # 652-P850-G120-WH	Bourns	Board Mount Surge Protectors 100mA 850Vimp Learn More about Bourns Bourns_TBU	Datasheet	23,384In Stock	Cut Tape $3.09 $2.69 $1.86 $1.51 $1.42 Reel $1.16 MouseReel Available	Min.: 1 Mult.: 1 : 3,000	SMD/SMT		850 V	100 mA	- 40 C	+ 85 C	Reel, Cut Tape, MouseReel
Board Mount Surge Protectors Bi-directional TBU TBU-CA050-100-WH Bourns 1: $2.33 14,842In Stock	Mfr. Part # TBU-CA050-100-WH Mouser Part # 652-TBU-CA050-100-WH	Bourns	Board Mount Surge Protectors Bi-directional TBU Learn More about Bourns tbu ca high speed protectors	Datasheet	14,842In Stock	Cut Tape $2.33 $1.56 $1.31 $1.25 View Reel $1.13 $1.22 $1.13 Quote MouseReel Available	Min.: 1 Mult.: 1 : 3,000	SMD/SMT	DFN	500 V	200 mA	- 55 C	+ 125 C	Reel, Cut Tape, MouseReel
Board Mount Surge Protectors Dual Unidirectional TBU Device TBU-DT065-100-WH Bourns 1: $3.00 8,194In Stock	Mfr. Part # TBU-DT065-100-WH Mouser Part # 652-TBU-DT065-100-WH	Bourns	Board Mount Surge Protectors Dual Unidirectional TBU Device Learn More about Bourns tbu dt high speed protectors	Datasheet	8,194In Stock	Cut Tape $3.00 $2.63 $1.82 $1.47 Reel $1.14 View $1.38 $1.13 MouseReel Available	Min.: 1 Mult.: 1 : 3,000	SMD/SMT	DFN	300 V	100 mA	- 40 C	+ 85 C	Reel, Cut Tape, MouseReel
Board Mount Surge Protectors 200mA 850Vimp P850-G200-WH Bourns 1: $2.37 984In Stock	Mfr. Part # P850-G200-WH Mouser Part # 652-P850-G200-WH	Bourns	Board Mount Surge Protectors 200mA 850Vimp Learn More about Bourns Bourns_TBU	Datasheet	984In Stock	Cut Tape $2.37 $1.73 $1.46 $1.37 $1.33 Reel $1.25 MouseReel Available	Min.: 1 Mult.: 1 : 3,000	SMD/SMT		850 V	200 mA	- 40 C	+ 85 C	Reel, Cut Tape, MouseReel
Board Mount Surge Protectors Dual 50ohm TBU Devce Bi-directional TBU-PL085-100-WH Bourns 1: $2.60 5,601In Stock	Mfr. Part # TBU-PL085-100-WH Mouser Part # 652-TBU-PL085-100-WH	Bourns	Board Mount Surge Protectors Dual 50ohm TBU Devce Bi-directional	Datasheet	5,601In Stock	Cut Tape $2.60 $2.34 $1.61 $1.29 Reel $1.09 View $1.18 $0.976 MouseReel Available	Min.: 1 Mult.: 1 : 3,000	SMD/SMT	DFN	850 V	200 mA	- 55 C	+ 125 C	Reel, Cut Tape, MouseReel
Board Mount Surge Protectors Bi-directional TBU TBU-CA065-200-WH Bourns 1: $2.82 34,841In Stock 42,000Expected 2/15/2027	Mfr. Part # TBU-CA065-200-WH Mouser Part # 652-TBU-CA065-200-WH	Bourns	Board Mount Surge Protectors Bi-directional TBU Learn More about Bourns tbu ca high speed protectors	Datasheet	34,841In Stock 42,000Expected 2/15/2027	Cut Tape $2.82 $2.43 $1.61 $1.35 Reel $1.17 View $1.21 $1.16 MouseReel Available	Min.: 1 Mult.: 1 : 3,000	SMD/SMT	DFN	650 V	400 mA	- 55 C	+ 125 C	Reel, Cut Tape, MouseReel
Board Mount Surge Protectors Bi-directional TBU TBU-CA065-300-WH Bourns 1: $2.80 35,906In Stock 39,000Expected 5/26/2027	Mfr. Part # TBU-CA065-300-WH Mouser Part # 652-TBU-CA065-300-WH	Bourns	Board Mount Surge Protectors Bi-directional TBU Learn More about Bourns tbu ca high speed protectors	Datasheet	35,906In Stock 39,000Expected 5/26/2027	Cut Tape $2.80 $2.51 $1.68 $1.35 $1.26 Reel $1.24 MouseReel Available	Min.: 1 Mult.: 1 : 3,000	SMD/SMT	DFN	650 V	600 mA	- 55 C	+ 125 C	Reel, Cut Tape, MouseReel
Board Mount Surge Protectors Bi-directional TBU TBU-CA085-050-WH Bourns 1: $2.98 40,653In Stock	Mfr. Part # TBU-CA085-050-WH Mouser Part # 652-TBU-CA085-050-WH	Bourns	Board Mount Surge Protectors Bi-directional TBU Learn More about Bourns tbu ca high speed protectors	Datasheet	40,653In Stock	Cut Tape $2.98 $2.25 $1.60 $1.35 $1.19 Reel $1.16 MouseReel Available	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 Bi-directional TBU TBU-CA040-100-WH Bourns 1: $2.89 2,436In Stock	Mfr. Part # TBU-CA040-100-WH Mouser Part # 652-TBU-CA040-100-WH	Bourns	Board Mount Surge Protectors Bi-directional TBU Learn More about Bourns tbu ca high speed protectors	Datasheet	2,436In Stock	Cut Tape $2.89 $2.43 $1.68 $1.35 $1.24 Reel $1.16 MouseReel Available	Min.: 1 Mult.: 1 : 3,000	SMD/SMT	DFN	400 V	200 mA	- 55 C	+ 125 C	Reel, Cut Tape, MouseReel
Board Mount Surge Protectors Bi-directional TBU TBU-CA040-200-WH Bourns 1: $2.33 3,042In Stock	Mfr. Part # TBU-CA040-200-WH Mouser Part # 652-TBU-CA040-200-WH	Bourns	Board Mount Surge Protectors Bi-directional TBU Learn More about Bourns tbu ca high speed protectors	Datasheet	3,042In Stock	Cut Tape $2.33 $1.56 $1.31 $1.25 $1.18 Reel $1.16 MouseReel Available	Min.: 1 Mult.: 1 : 3,000	SMD/SMT	DFN	400 V	400 mA	- 55 C	+ 125 C	Reel, Cut Tape, MouseReel
Board Mount Surge Protectors 240mA 40Vimp P40-G240-WH Bourns 1: $2.09 5,473In Stock	Mfr. Part # P40-G240-WH Mouser Part # 652-P40-G240-WH	Bourns	Board Mount Surge Protectors 240mA 40Vimp Learn More about Bourns Bourns_TBU	Datasheet	5,473In Stock	Cut Tape $2.09 $1.61 $1.20 $0.913 $0.806 Reel $0.80 MouseReel Available	Min.: 1 Mult.: 1 : 3,000	SMD/SMT		40 V	240 mA	- 55 C	+ 125 C	Reel, Cut Tape, MouseReel
Board Mount Surge Protectors Bi-directional TBU TBU-CA025-050-WH Bourns 1: $2.33 9,818In Stock	Mfr. Part # TBU-CA025-050-WH Mouser Part # 652-TBU-CA025-050-WH	Bourns	Board Mount Surge Protectors Bi-directional TBU Learn More about Bourns tbu ca high speed protectors	Datasheet	9,818In Stock	Cut Tape $2.33 $1.56 $1.31 $1.25 $1.19 Reel $1.16 MouseReel Available	Min.: 1 Mult.: 1 : 3,000	SMD/SMT	DFN	250 V	100 mA	- 55 C	+ 125 C	Reel, Cut Tape, MouseReel
Board Mount Surge Protectors Bi-directional TBU TBU-CA025-100-WH Bourns 1: $2.15 4,813In Stock	Mfr. Part # TBU-CA025-100-WH Mouser Part # 652-TBU-CA025-100-WH	Bourns	Board Mount Surge Protectors Bi-directional TBU Learn More about Bourns tbu ca high speed protectors	Datasheet	4,813In Stock	Cut Tape $2.15 $1.56 $1.31 $1.25 $1.19 Reel $1.16 MouseReel Available	Min.: 1 Mult.: 1 : 3,000	SMD/SMT	DFN	250 V	200 mA	- 55 C	+ 125 C	Reel, Cut Tape, MouseReel
Board Mount Surge Protectors Bi-directional TBU TBU-CA025-200-WH Bourns 1: $2.72 6,587In Stock	Mfr. Part # TBU-CA025-200-WH Mouser Part # 652-TBU-CA025-200-WH	Bourns	Board Mount Surge Protectors Bi-directional TBU Learn More about Bourns tbu ca high speed protectors	Datasheet	6,587In Stock	Cut Tape $2.72 $2.25 $1.55 $1.34 $1.19 Reel $1.16 MouseReel Available	Min.: 1 Mult.: 1 : 3,000	SMD/SMT	DFN	250 V	400 mA	- 55 C	+ 125 C	Reel, Cut Tape, MouseReel
Board Mount Surge Protectors Bi-directional TBU TBU-CA025-300-WH Bourns 1: $2.90 3,527In Stock	Mfr. Part # TBU-CA025-300-WH Mouser Part # 652-TBU-CA025-300-WH	Bourns	Board Mount Surge Protectors Bi-directional TBU Learn More about Bourns tbu ca high speed protectors	Datasheet	3,527In Stock	Cut Tape $2.90 $2.25 $1.68 $1.35 $1.24 Reel $1.16 MouseReel Available	Min.: 1 Mult.: 1 : 3,000	SMD/SMT	DFN	250 V	600 mA	- 55 C	+ 125 C	Reel, Cut Tape, MouseReel
Board Mount Surge Protectors Bi-directional TBU TBU-CA025-500-WH Bourns 1: $2.89 1,737In Stock 42,000On Order	Mfr. Part # TBU-CA025-500-WH Mouser Part # 652-TBU-CA025-500-WH	Bourns	Board Mount Surge Protectors Bi-directional TBU Learn More about Bourns tbu ca high speed protectors	Datasheet	1,737In Stock 42,000On Order On Order Ship Dates Mfr. #: TBU-CA025-500-WH Stock: 1,737 Can Ship Immediately On Order: 18,000 Expected 10/15/2026 24,000 Expected 2/22/2027 Factory Lead-Time: 18 Weeks	Cut Tape $2.89 $2.43 $1.68 $1.35 $1.24 Reel $1.16 MouseReel Available	Min.: 1 Mult.: 1 : 3,000	SMD/SMT	DFN	250 V	1 A	- 55 C	+ 125 C	Reel, Cut Tape, MouseReel
Board Mount Surge Protectors Bi-directional TBU TBU-CA040-050-WH Bourns 1: $3.07 4,704In Stock	Mfr. Part # TBU-CA040-050-WH Mouser Part # 652-TBU-CA040-050-WH	Bourns	Board Mount Surge Protectors Bi-directional TBU Learn More about Bourns tbu ca high speed protectors	Datasheet	4,704In Stock	Cut Tape $3.07 $2.43 $1.68 $1.35 $1.24 Reel $1.16 MouseReel Available	Min.: 1 Mult.: 1 : 3,000	SMD/SMT	DFN	400 V	100 mA	- 55 C	+ 125 C	Reel, Cut Tape, MouseReel
Board Mount Surge Protectors Bi-directional TBU TBU-CA040-500-WH Bourns 1: $3.12 3,953In Stock 12,000Expected 12/21/2026	Mfr. Part # TBU-CA040-500-WH Mouser Part # 652-TBU-CA040-500-WH	Bourns	Board Mount Surge Protectors Bi-directional TBU Learn More about Bourns tbu ca high speed protectors	Datasheet	3,953In Stock 12,000Expected 12/21/2026	Cut Tape $3.12 $2.43 $1.64 $1.35 $1.22 Reel $1.16 MouseReel Available	Min.: 1 Mult.: 1 : 3,000	SMD/SMT	DFN	400 V	1 A	- 55 C	+ 125 C	Reel, Cut Tape, MouseReel
Board Mount Surge Protectors Bi-directional TBU TBU-CA050-050-WH Bourns 1: $3.12 3,434In Stock	Mfr. Part # TBU-CA050-050-WH Mouser Part # 652-TBU-CA050-050-WH	Bourns	Board Mount Surge Protectors Bi-directional TBU Learn More about Bourns tbu ca high speed protectors	Datasheet	3,434In Stock	Cut Tape $3.12 $2.43 $1.60 $1.35 $1.24 Reel $1.16 MouseReel Available	Min.: 1 Mult.: 1 : 3,000	SMD/SMT	DFN	500 V	100 mA	- 55 C	+ 125 C	Reel, Cut Tape, MouseReel
Board Mount Surge Protectors Bi-directional TBU TBU-CA050-200-WH Bourns 1: $3.12 4,010In Stock 6,000Expected 1/26/2027	Mfr. Part # TBU-CA050-200-WH Mouser Part # 652-TBU-CA050-200-WH	Bourns	Board Mount Surge Protectors Bi-directional TBU Learn More about Bourns tbu ca high speed protectors	Datasheet	4,010In Stock 6,000Expected 1/26/2027	Cut Tape $3.12 $2.43 $1.68 $1.35 $1.24 Reel $1.16 MouseReel Available	Min.: 1 Mult.: 1 : 3,000	SMD/SMT	DFN	500 V	400 mA	- 55 C	+ 125 C	Reel, Cut Tape, MouseReel
Board Mount Surge Protectors Bi-directional TBU TBU-CA050-300-WH Bourns 1: $2.72 5,191In Stock 9,000Expected 10/15/2026	Mfr. Part # TBU-CA050-300-WH Mouser Part # 652-TBU-CA050-300-WH	Bourns	Board Mount Surge Protectors Bi-directional TBU Learn More about Bourns tbu ca high speed protectors	Datasheet	5,191In Stock 9,000Expected 10/15/2026	Cut Tape $2.72 $2.25 $1.68 $1.35 $1.24 Reel $1.16 MouseReel Available	Min.: 1 Mult.: 1 : 3,000	SMD/SMT	DFN	500 V	600 mA	- 55 C	+ 125 C	Reel, Cut Tape, MouseReel
Board Mount Surge Protectors Bi-directional TBU TBU-CA050-500-WH Bourns 1: $2.47 3,915In Stock	Mfr. Part # TBU-CA050-500-WH Mouser Part # 652-TBU-CA050-500-WH	Bourns	Board Mount Surge Protectors Bi-directional TBU Learn More about Bourns tbu ca high speed protectors	Datasheet	3,915In Stock	Cut Tape $2.47 $1.65 $1.39 $1.34 Reel $1.23 View $1.24 $1.16 MouseReel Available	Min.: 1 Mult.: 1 : 3,000	SMD/SMT	DFN	500 V	1 A	- 55 C	+ 125 C	Reel, Cut Tape, MouseReel
Board Mount Surge Protectors Bi-directional TBU TBU-CA065-050-WH Bourns 1: $2.72 12,682In Stock 15,000Expected 7/12/2027	Mfr. Part # TBU-CA065-050-WH Mouser Part # 652-TBU-CA065-050-WH	Bourns	Board Mount Surge Protectors Bi-directional TBU Learn More about Bourns tbu ca high speed protectors	Datasheet	12,682In Stock 15,000Expected 7/12/2027	Cut Tape $2.72 $2.25 $1.55 $1.34 $1.19 Reel $1.16 MouseReel Available	Min.: 1 Mult.: 1 : 3,000	SMD/SMT	DFN	650 V	100 mA	- 55 C	+ 125 C	Reel, Cut Tape, MouseReel
Board Mount Surge Protectors Bi-directional TBU TBU-CA065-500-WH Bourns 1: $2.42 3,637In Stock 6,000Expected 2/24/2027	Mfr. Part # TBU-CA065-500-WH Mouser Part # 652-TBU-CA065-500-WH	Bourns	Board Mount Surge Protectors Bi-directional TBU Learn More about Bourns tbu ca high speed protectors	Datasheet	3,637In Stock 6,000Expected 2/24/2027	Cut Tape $2.42 $1.65 $1.39 $1.34 Reel $1.21 View $1.33 $1.19 MouseReel Available	Min.: 1 Mult.: 1 : 3,000	SMD/SMT	DFN	650 V	1 A	- 55 C	+ 125 C	Reel, Cut Tape, MouseReel
Board Mount Surge Protectors Bi-directional TBU TBU-CA085-300-WH Bourns 1: $2.72 2,439In Stock 6,000Expected 2/15/2027	Mfr. Part # TBU-CA085-300-WH Mouser Part # 652-TBU-CA085-300-WH	Bourns	Board Mount Surge Protectors Bi-directional TBU Learn More about Bourns tbu ca high speed protectors	Datasheet	2,439In Stock 6,000Expected 2/15/2027	Cut Tape $2.72 $2.43 $1.68 $1.35 Reel $1.17 View $1.24 $1.16 MouseReel Available	Min.: 1 Mult.: 1 : 3,000	SMD/SMT	DFN	850 V	600 mA	- 55 C	+ 125 C	Reel, Cut Tape, MouseReel

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