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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Part #

Board Mount Surge Protectors Bi-directional TBU

TBU-CA040-100-WH
Bourns
1: $2.55
2,558In Stock

Mfr. Part #
TBU-CA040-100-WH

Mouser Part #
652-TBU-CA040-100-WH

Bourns

Board Mount Surge Protectors Bi-directional TBU

Learn More

Datasheet

2,558In Stock

Cut Tape

$2.55

$1.93

$1.53

$1.17

Reel

$1.15

$1.13

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: $3.31
253In Stock

Mfr. Part #
TBU-CA040-200-WH

Mouser Part #
652-TBU-CA040-200-WH

Bourns

Board Mount Surge Protectors Bi-directional TBU

Learn More

Datasheet

253In Stock

Cut Tape

$3.31

$2.45

$1.57

$1.17

Reel

$1.15

$1.13

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 Dual Unidirectional TBU Device

TBU-DT065-100-WH
Bourns
1: $3.33
8,746In 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

Datasheet

8,746In Stock

Cut Tape

$3.33

$2.91

$2.02

$1.63

Reel

$1.26

View

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: $3.28
994In Stock

Mfr. Part #
P850-G200-WH

Mouser Part #
652-P850-G200-WH

Bourns

Board Mount Surge Protectors 200mA 850Vimp

Learn More

Datasheet

Product Comments

994In Stock

Cut Tape

$3.28

$2.71

$2.02

$1.64

Reel

$1.31

View

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: $2.88
5,711In 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

5,711In Stock

Cut Tape

$2.88

$2.59

$1.79

$1.43

Reel

$1.16

View

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 100mA 850Vimp

P850-G120-WH
Bourns
1: $3.95
26,036In Stock

Mfr. Part #
P850-G120-WH

Mouser Part #
652-P850-G120-WH

Bourns

Board Mount Surge Protectors 100mA 850Vimp

Learn More

Datasheet

Product Comments

26,036In Stock

Cut Tape

$3.95

$2.98

$2.06

$1.67

$1.57

Reel

$1.48

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-CA065-050-WH
Bourns
1: $3.12
26,352In Stock

Mfr. Part #
TBU-CA065-050-WH

Mouser Part #
652-TBU-CA065-050-WH

Bourns

Board Mount Surge Protectors Bi-directional TBU

Learn More

Datasheet

26,352In Stock

Cut Tape

$3.12

$2.43

$1.61

$1.41

$1.29

Reel

$1.29

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-CA065-200-WH
Bourns
1: $3.10
16,016In Stock
39,000Expected 2026-09-09

Mfr. Part #
TBU-CA065-200-WH

Mouser Part #
652-TBU-CA065-200-WH

Bourns

Board Mount Surge Protectors Bi-directional TBU

Learn More

Datasheet

16,016In Stock

39,000Expected 2026-09-09

Cut Tape

$3.10

$2.69

$1.68

$1.47

$1.30

Reel

$1.29

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-CA085-050-WH
Bourns
1: $3.31
22,415In Stock
24,000Expected 2026-06-25

Mfr. Part #
TBU-CA085-050-WH

Mouser Part #
652-TBU-CA085-050-WH

Bourns

Board Mount Surge Protectors Bi-directional TBU

Learn More

Datasheet

22,415In Stock

24,000Expected 2026-06-25

Cut Tape

$3.31

$2.68

$1.86

$1.50

View

Reel

$1.32

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-CA050-200-WH
Bourns
1: $3.46
4,654In Stock

Mfr. Part #
TBU-CA050-200-WH

Mouser Part #
652-TBU-CA050-200-WH

Bourns

Board Mount Surge Protectors Bi-directional TBU

Learn More

Datasheet

4,654In Stock

Cut Tape

$3.46

$2.69

$1.86

$1.50

$1.37

Reel

$1.29

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 240mA 40Vimp

P40-G240-WH
Bourns
1: $2.06
8,327In Stock

Mfr. Part #
P40-G240-WH

Mouser Part #
652-P40-G240-WH

Bourns

Board Mount Surge Protectors 240mA 40Vimp

Learn More

Datasheet

Product Comments

8,327In Stock

Cut Tape

$2.06

$1.77

$1.32

$0.981

$0.886

Reel

$0.886

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: $3.23
11,097In Stock

Mfr. Part #
TBU-CA025-050-WH

Mouser Part #
652-TBU-CA025-050-WH

Bourns

Board Mount Surge Protectors Bi-directional TBU

Learn More

Datasheet

11,097In Stock

Cut Tape

$3.23

$2.69

$1.86

$1.50

$1.35

Reel

$1.29

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: $3.46
6,554In Stock

Mfr. Part #
TBU-CA025-100-WH

Mouser Part #
652-TBU-CA025-100-WH

Bourns

Board Mount Surge Protectors Bi-directional TBU

Learn More

Datasheet

6,554In Stock

Cut Tape

$3.46

$2.69

$1.83

$1.50

$1.37

Reel

$1.29

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: $3.05
4,341In Stock

Mfr. Part #
TBU-CA025-200-WH

Mouser Part #
652-TBU-CA025-200-WH

Bourns

Board Mount Surge Protectors Bi-directional TBU

Learn More

Datasheet

4,341In Stock

Cut Tape

$3.05

$2.43

$1.61

$1.41

$1.29

Reel

$1.29

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: $3.10
4,637In Stock

Mfr. Part #
TBU-CA025-300-WH

Mouser Part #
652-TBU-CA025-300-WH

Bourns

Board Mount Surge Protectors Bi-directional TBU

Learn More

Datasheet

4,637In Stock

Cut Tape

$3.10

$2.49

$1.86

$1.50

$1.37

Reel

$1.29

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-CA040-050-WH
Bourns
1: $3.01
5,604In Stock

Mfr. Part #
TBU-CA040-050-WH

Mouser Part #
652-TBU-CA040-050-WH

Bourns

Board Mount Surge Protectors Bi-directional TBU

Learn More

Datasheet

5,604In Stock

Cut Tape

$3.01

$2.69

$1.86

$1.50

Reel

$1.37

View

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: $3.46
2,008In Stock
9,000On Order

Mfr. Part #
TBU-CA040-500-WH

Mouser Part #
652-TBU-CA040-500-WH

Bourns

Board Mount Surge Protectors Bi-directional TBU

Learn More

Datasheet

2,008In Stock

9,000On Order

Cut Tape

$3.46

$2.69

$1.73

$1.45

$1.29

Reel

$1.29

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: $3.46
4,404In Stock

Mfr. Part #
TBU-CA050-050-WH

Mouser Part #
652-TBU-CA050-050-WH

Bourns

Board Mount Surge Protectors Bi-directional TBU

Learn More

Datasheet

4,404In Stock

Cut Tape

$3.46

$2.69

$1.79

$1.50

$1.34

Reel

$1.29

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-CA050-100-WH
Bourns
1: $3.12
7,907In Stock

Mfr. Part #
TBU-CA050-100-WH

Mouser Part #
652-TBU-CA050-100-WH

Bourns

Board Mount Surge Protectors Bi-directional TBU

Learn More

Datasheet

7,907In Stock

Cut Tape

$3.12

$2.69

$1.86

$1.50

$1.37

Reel

$1.29

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 Bi-directional TBU

TBU-CA050-300-WH
Bourns
1: $2.66
11,387In Stock

Mfr. Part #
TBU-CA050-300-WH

Mouser Part #
652-TBU-CA050-300-WH

Bourns

Board Mount Surge Protectors Bi-directional TBU

Learn More

Datasheet

11,387In Stock

Cut Tape

$2.66

$2.13

$1.73

$1.50

$1.37

Reel

$1.29

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-CA065-100-WH
Bourns
1: $3.36
2,479In Stock
18,000Expected 2026-06-26

Mfr. Part #
TBU-CA065-100-WH

Mouser Part #
652-TBU-CA065-100-WH

Bourns

Board Mount Surge Protectors Bi-directional TBU

Learn More

Datasheet

2,479In Stock

18,000Expected 2026-06-26

Cut Tape

$3.36

$2.42

$1.70

$1.50

$1.37

Reel

$1.29

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

SMD/SMT

DFN

650 V

200 mA

- 55 C

+ 125 C

Reel, Cut Tape, MouseReel

Board Mount Surge Protectors Bi-directional TBU

TBU-CA065-500-WH
Bourns
1: $3.01
6,507In Stock

Mfr. Part #
TBU-CA065-500-WH

Mouser Part #
652-TBU-CA065-500-WH

Bourns

Board Mount Surge Protectors Bi-directional TBU

Learn More

Datasheet

6,507In Stock

Cut Tape

$3.01

$2.64

$1.64

$1.42

$1.29

Reel

$1.29

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-CA085-100-WH
Bourns
1: $3.20
10,736In Stock

Mfr. Part #
TBU-CA085-100-WH

Mouser Part #
652-TBU-CA085-100-WH

Bourns

Board Mount Surge Protectors Bi-directional TBU

Learn More

Datasheet

10,736In Stock

Cut Tape

$3.20

$2.69

$1.80

$1.50

$1.35

Reel

$1.29

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-CA085-200-WH
Bourns
1: $3.40
10,439In Stock

Mfr. Part #
TBU-CA085-200-WH

Mouser Part #
652-TBU-CA085-200-WH

Bourns

Board Mount Surge Protectors Bi-directional TBU

Learn More

Datasheet

10,439In Stock

Cut Tape

$3.40

$2.56

$1.86

$1.50

$1.37

Reel

$1.29

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

SMD/SMT

DFN

850 V

400 mA

- 55 C

+ 125 C

Reel, Cut Tape, MouseReel

Board Mount Surge Protectors Dual Unidirectional TBU Device

TBU-DT065-200-WH
Bourns
1: $3.46
9,396In Stock

Mfr. Part #
TBU-DT065-200-WH

Mouser Part #
652-TBU-DT065-200-WH

Bourns

Board Mount Surge Protectors Dual Unidirectional TBU Device

Learn More

Datasheet

9,396In Stock

Cut Tape

$3.46

$2.91

$2.02

$1.63

$1.54

Reel

$1.43

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

SMD/SMT

DFN

650 V

400 mA

- 40 C

+ 85 C

Reel, Cut Tape, MouseReel

TBU® Circuit Protection Devices

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