Board Mount Surge Protectors – Mouser United Kingdom

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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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Part #

Board Mount Surge Protectors 850V 50mA Dual Bi-dir TBU

TBU-DF085-050-WH
Bourns
1: £2.11
8,114In Stock

Mfr. Part No.
TBU-DF085-050-WH

Mouser Part No
652-TBU-DF085-050-WH

Bourns

Board Mount Surge Protectors 850V 50mA Dual Bi-dir TBU

Datasheet

8,114In Stock

Cut Tape

£2.11

£1.42

£1.20

£1.18

£1.13

Reel

£1.13

MouseReel Available

Min.: 1
Mult.: 1

Reel: 3,000

SMD/SMT

DFN

850 V

100 mA

- 55 C

+ 125 C

Reel, Cut Tape, MouseReel

Board Mount Surge Protectors I- (TRIGGER)100MA 850V(I

TBU-DF085-100-WH
Bourns
1: £2.62
7,931In Stock

Mfr. Part No.
TBU-DF085-100-WH

Mouser Part No
652-TBU-DF085-100-WH

Bourns

Board Mount Surge Protectors I- (TRIGGER)100MA 850V(I

Datasheet

7,931In Stock

Cut Tape

£2.62

£1.93

£1.35

£1.20

Reel

£1.13

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

Board Mount Surge Protectors I- (TRIGGER)200MA 550V(I

TBU-DF055-200-WH
Bourns
1: £1.56
5,454In Stock

Mfr. Part No.
TBU-DF055-200-WH

Mouser Part No
652-TBU-DF055-200-WH

Bourns

Board Mount Surge Protectors I- (TRIGGER)200MA 550V(I

Datasheet

5,454In Stock

Cut Tape

£1.56

£1.28

£1.20

Reel

£1.13

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

Board Mount Surge Protectors 850V 300mA Dual Bi-dir TBU

TBU-DF085-300-WH
Bourns
1: £2.81
17,675In Stock

Mfr. Part No.
TBU-DF085-300-WH

Mouser Part No
652-TBU-DF085-300-WH

Bourns

Board Mount Surge Protectors 850V 300mA Dual Bi-dir TBU

Datasheet

17,675In Stock

Cut Tape

£2.81

£1.93

£1.35

£1.20

Reel

£1.13

MouseReel Available

Min.: 1
Mult.: 1

Reel: 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: £2.17
1,342In Stock

Mfr. Part No.
TBU-DF055-100-WH

Mouser Part No
652-TBU-DF055-100-WH

Bourns

Board Mount Surge Protectors I- (TRIGGER)100MA 550V(I

Datasheet

1,342In Stock

Cut Tape

£2.17

£1.74

£1.35

£1.20

Reel

£1.13

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

Board Mount Surge Protectors 550V 300mA Dual Bi-dir TBU

TBU-DF055-300-WH
Bourns
1: £2.18
7,988In Stock

Mfr. Part No.
TBU-DF055-300-WH

Mouser Part No
652-TBU-DF055-300-WH

Bourns

Board Mount Surge Protectors 550V 300mA Dual Bi-dir TBU

Datasheet

7,988In Stock

Cut Tape

£2.18

£1.79

£1.71

£1.46

Reel

£1.14

View

MouseReel Available

Min.: 1
Mult.: 1

Reel: 3,000

SMD/SMT

DFN

550 V

600 mA

- 55 C

+ 125 C

Reel, Cut Tape, MouseReel

Board Mount Surge Protectors I- (TRIGGER)200MA 850V(I

TBU-DF085-200-WH
Bourns
1: £2.50
3,401In Stock

Mfr. Part No.
TBU-DF085-200-WH

Mouser Part No
652-TBU-DF085-200-WH

Bourns

Board Mount Surge Protectors I- (TRIGGER)200MA 850V(I

Datasheet

3,401In Stock

Cut Tape

£2.50

£1.93

£1.58

£1.45

£1.20

Reel

£1.13

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

Board Mount Surge Protectors 550V 50mA Dual Bi-dir TBU

TBU-DF055-050-WH
Bourns
1: £2.76
251In Stock
9,000Expected 19/02/2026

Mfr. Part No.
TBU-DF055-050-WH

Mouser Part No
652-TBU-DF055-050-WH

Bourns

Board Mount Surge Protectors 550V 50mA Dual Bi-dir TBU

Datasheet

251In Stock

9,000Expected 19/02/2026

Cut Tape

£2.76

£1.93

£1.35

£1.20

Reel

£1.13

MouseReel Available

Min.: 1
Mult.: 1

Reel: 3,000

SMD/SMT

DFN

550 V

100 mA

- 55 C

+ 125 C

Reel, Cut Tape, MouseReel

Board Mount Surge Protectors 550V 500mA Dual Bi-dir TBU

TBU-DF055-500-WH
Bourns
9,000: £1.28
Non-Stocked Lead-Time 20 Weeks

Mfr. Part No.
TBU-DF055-500-WH

Mouser Part No
652-TBU-DF055-500-WH

Bourns

Board Mount Surge Protectors 550V 500mA Dual Bi-dir TBU

Datasheet

Non-Stocked Lead-Time 20 Weeks

Cut Tape

£1.28

Min.: 9,000
Mult.: 3,000

Reel: 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
9,000: £1.13
Non-Stocked Lead-Time 20 Weeks

Mfr. Part No.
TBU-DF085-500-WH

Mouser Part No
652-TBU-DF085-500-WH

Bourns

Board Mount Surge Protectors 850V 500mA Dual Bi-dir TBU

Datasheet

Non-Stocked Lead-Time 20 Weeks

Cut Tape

£1.13

Min.: 9,000
Mult.: 3,000

Reel: 3,000

SMD/SMT

DFN

850 V

500 mA

- 55 C

+ 125 C

Reel