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Circuit Protection Devices

Bourns manufactures and supplies a wide range of circuit protection technologies, including fuses, PTC thermistors, varistors, GDTs, resettable thermal cut-offs, surge protection devices, hybrid protectors, discrete semiconductor solutions, and more. Reliable surge protection is a critical design consideration to help ensure operational reliability of consumer electronics, industrial/communication equipment, automotive, battery charging, energy storage infrastructure, and renewable energy harvesting ecosystems.

All Results (8,016)

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Part #

Varistors 14mm Radial Disc MOV - Kinked Leads, T&R

MOV-14D271KKTR
Bourns
1: £0.63
17,499In Stock

Mfr. Part No.
MOV-14D271KKTR

Mouser Part No
652-MOV-14D271KKTR

Bourns

Varistors 14mm Radial Disc MOV - Kinked Leads, T&R

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Datasheet

17,499In Stock

Cut Tape

£0.63

£0.38

£0.238

£0.21

Reel

£0.179

View

MouseReel Available

Min.: 1
Mult.: 1

: 500

Industrial Surge Protectors 75VDC 2W+G

1320-S-75
Bourns
1: £117.69
167In Stock

Mfr. Part No.
1320-S-75

Mouser Part No
652-1320-S-75

Bourns

Industrial Surge Protectors 75VDC 2W+G

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Datasheet

167In Stock

£117.69

£88.75

£73.24

£69.72

Min.: 1
Mult.: 1

Thermal Cut-offs TCO, High Current, SMD, 135C, Self Hold AEC-Q200

SDD5ABB
Bourns
1: £1.94
3,819In Stock

Mfr. Part No.
SDD5ABB

Mouser Part No
652-SDD5ABB

Bourns

Thermal Cut-offs TCO, High Current, SMD, 135C, Self Hold AEC-Q200

Datasheet

3,819In Stock

Cut Tape

£1.94

£1.75

£1.41

£1.23

View

Reel

£0.801

MouseReel Available

Min.: 1
Mult.: 1

: 4,000

NTC (Negative Temperature Coefficient) Thermistors 13 dia Power NTC 5ohm Y kink bulk

BN-LG13Y5R0MYB
Bourns
1: £0.608
11,487In Stock

Mfr. Part No.
BN-LG13Y5R0MYB

Mouser Part No
652-BN-LG13Y5R0MYB

Bourns

NTC (Negative Temperature Coefficient) Thermistors 13 dia Power NTC 5ohm Y kink bulk

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Datasheet

11,487In Stock

£0.608

£0.511

£0.464

£0.424

View

Min.: 1
Mult.: 1

NTC (Negative Temperature Coefficient) Thermistors 15 dia Power NTC 120ohm Y kink bulk

BN-LG15Y121MYB
Bourns
1: £0.578
11,358In Stock

Mfr. Part No.
BN-LG15Y121MYB

Mouser Part No
652-BN-LG15Y121MYB

Bourns

NTC (Negative Temperature Coefficient) Thermistors 15 dia Power NTC 120ohm Y kink bulk

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Datasheet

11,358In Stock

£0.578

£0.511

£0.479

£0.437

View

Min.: 1
Mult.: 1

NTC (Negative Temperature Coefficient) Thermistors 15 dia Power NTC 220ohm Y kink bulk

BN-LG15Y221MYB
Bourns
1: £0.691
5,738In Stock
6,250Expected 07/08/2026

Mfr. Part No.
BN-LG15Y221MYB

Mouser Part No
652-BN-LG15Y221MYB

Bourns

NTC (Negative Temperature Coefficient) Thermistors 15 dia Power NTC 220ohm Y kink bulk

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Datasheet

5,738In Stock

6,250Expected 07/08/2026

£0.691

£0.559

£0.481

£0.464

View

Min.: 1
Mult.: 1

Automotive Fuses POWrFuse TH 275Vac 500Vdc 30A

PF-KT1-30
Bourns
1: £25.81
279In Stock

Mfr. Part No.
PF-KT1-30

Mouser Part No
652-PF-KT1-30

Bourns

Automotive Fuses POWrFuse TH 275Vac 500Vdc 30A

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Datasheet

279In Stock

£25.81

£21.41

£12.30

Min.: 1
Mult.: 1

Surface Mount Fuses 15A 250V FAST ACTING

SF-3812F1500T-2
Bourns
1: £2.74
10,255In Stock

Mfr. Part No.
SF-3812F1500T-2

Mouser Part No
652-SF-3812F1500T-2

Bourns

Surface Mount Fuses 15A 250V FAST ACTING

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Datasheet

10,255In Stock

Cut Tape

£2.74

£2.30

£1.80

£1.60

Reel

£1.13

View

MouseReel Available

Min.: 1
Mult.: 1

: 2,500

Surface Mount Fuses 20A 250V FAST ACTING

SF-3812F2000T-2
Bourns
1: £2.22
10,011In Stock

Mfr. Part No.
SF-3812F2000T-2

Mouser Part No
652-SF-3812F2000T-2

Bourns

Surface Mount Fuses 20A 250V FAST ACTING

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Datasheet

10,011In Stock

Cut Tape

£2.22

£1.98

£1.68

£1.57

Reel

£1.12

View

Min.: 1
Mult.: 1

: 2,500

ESD Protection Diodes / TVS Diodes 22volts 5uA 84.4 Amps Bi-Dir

SMLJ22CA
Bourns
1: £0.615
33,767In Stock

Mfr. Part No.
SMLJ22CA

Mouser Part No
652-SMLJ22CA

Bourns

ESD Protection Diodes / TVS Diodes 22volts 5uA 84.4 Amps Bi-Dir

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Datasheet

33,767In Stock

Cut Tape

£0.615

£0.614

£0.482

£0.411

Reel

£0.347

View

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

Surface Mount Fuses 10A 250V FAST ACTING

SF-3812F1000T-2
Bourns
1: £2.65
10,672In Stock

Mfr. Part No.
SF-3812F1000T-2

Mouser Part No
652-SF-3812F1000T-2

Bourns

Surface Mount Fuses 10A 250V FAST ACTING

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Datasheet

10,672In Stock

Cut Tape

£2.65

£2.33

£1.88

£1.69

Reel

£1.18

View

MouseReel Available

Min.: 1
Mult.: 1

: 2,500

NTC (Negative Temperature Coefficient) Thermistors 15 dia Power NTC 2.5ohm Y kink bulk

BN-LG15Y2R5MYB
Bourns
1: £0.713
10,234In Stock

Mfr. Part No.
BN-LG15Y2R5MYB

Mouser Part No
652-BN-LG15Y2R5MYB

Bourns

NTC (Negative Temperature Coefficient) Thermistors 15 dia Power NTC 2.5ohm Y kink bulk

Learn More

Datasheet

10,234In Stock

£0.713

£0.593

£0.538

£0.492

View

Min.: 1
Mult.: 1

NTC (Negative Temperature Coefficient) Thermistors 15 dia Power NTC 5ohm Y kink bulk

BN-LG15Y5R0MYB
Bourns
1: £0.705
6,849In Stock

Mfr. Part No.
BN-LG15Y5R0MYB

Mouser Part No
652-BN-LG15Y5R0MYB

Bourns

NTC (Negative Temperature Coefficient) Thermistors 15 dia Power NTC 5ohm Y kink bulk

Learn More

Datasheet

6,849In Stock

£0.705

£0.593

£0.538

£0.492

View

Min.: 1
Mult.: 1

NTC (Negative Temperature Coefficient) Thermistors 20 dia Power NTC 5ohm Y kink bulk

BN-LG20Y5R0MYB
Bourns
1: £1.00
5,980In Stock

Mfr. Part No.
BN-LG20Y5R0MYB

Mouser Part No
652-BN-LG20Y5R0MYB

Bourns

NTC (Negative Temperature Coefficient) Thermistors 20 dia Power NTC 5ohm Y kink bulk

Learn More

Datasheet

5,980In Stock

£1.00

£0.882

£0.818

£0.731

View

Min.: 1
Mult.: 1

Automotive Fuses POWrFuse BD 275Vac 500Vdc 50A

PF-KB1-50
Bourns
1: £29.43
158In Stock

Mfr. Part No.
PF-KB1-50

Mouser Part No
652-PF-KB1-50

Bourns

Automotive Fuses POWrFuse BD 275Vac 500Vdc 50A

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Datasheet

158In Stock

£29.43

£24.42

£17.55

£15.91

Min.: 1
Mult.: 1

NTC (Negative Temperature Coefficient) Thermistors 20 dia Power NTC 20ohm Y kink bulk

BN-LG20Y200MYB
Bourns
1: £1.17
6,197In Stock

Mfr. Part No.
BN-LG20Y200MYB

Mouser Part No
652-BN-LG20Y200MYB

Bourns

NTC (Negative Temperature Coefficient) Thermistors 20 dia Power NTC 20ohm Y kink bulk

Learn More

Datasheet

6,197In Stock

£1.17

£0.773

£0.738

£0.65

View

Min.: 1
Mult.: 1

NTC (Negative Temperature Coefficient) Thermistors 20 dia Power NTC 2.5ohm Y kink bulk

BN-LG20Y2R5MYB
Bourns
1: £1.19
5,473In Stock

Mfr. Part No.
BN-LG20Y2R5MYB

Mouser Part No
652-BN-LG20Y2R5MYB

Bourns

NTC (Negative Temperature Coefficient) Thermistors 20 dia Power NTC 2.5ohm Y kink bulk

Learn More

Datasheet

5,473In Stock

£1.19

£1.04

£0.943

£0.834

View

Min.: 1
Mult.: 1

ESD Protection Diodes / TVS Diodes P6SMB - A 160V

P6SMB160A-Q
Bourns
1: £0.526
119,948In Stock

Mfr. Part No.
P6SMB160A-Q

Mouser Part No
652-P6SMB160A-Q

Bourns

ESD Protection Diodes / TVS Diodes P6SMB - A 160V

Learn More

Datasheet

119,948In Stock

Cut Tape

£0.526

£0.322

£0.207

£0.157

Reel

£0.12

View

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

Board Mount Surge Protectors 100mA 850Vimp

P850-G120-WH
Bourns
1: £1.79
24,236In Stock

Mfr. Part No.
P850-G120-WH

Mouser Part No
652-P850-G120-WH

Bourns

Board Mount Surge Protectors 100mA 850Vimp

Learn More

Datasheet

Product Comments

24,236In Stock

Cut Tape

£1.79

£1.55

£1.07

£0.871

£0.818

Reel

£0.813

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

Thermal Cut-offs TCO, High Current, SMD, 55C, Self Hold AEC-Q200

SD55ABB
Bourns
1: £1.76
3,194In Stock

Mfr. Part No.
SD55ABB

Mouser Part No
652-SD55ABB

Bourns

Thermal Cut-offs TCO, High Current, SMD, 55C, Self Hold AEC-Q200

Learn More

Datasheet

3,194In Stock

Cut Tape

£1.76

£1.63

£1.62

£1.35

View

Reel

£0.801

MouseReel Available

Min.: 1
Mult.: 1

: 4,000

NTC (Negative Temperature Coefficient) Thermistors 10 dia Power NTC 15ohm Y kink bulk

BN-LG10Y150MYB
Bourns
1: £0.413
15,067In Stock

Mfr. Part No.
BN-LG10Y150MYB

Mouser Part No
652-BN-LG10Y150MYB

Bourns

NTC (Negative Temperature Coefficient) Thermistors 10 dia Power NTC 15ohm Y kink bulk

Learn More

Datasheet

15,067In Stock

£0.413

£0.346

£0.298

£0.249

View

Min.: 1
Mult.: 1

Automotive Fuses POWrFuse BD 275Vac 500Vdc 15A

PF-KB1-15
Bourns
1: £16.27
144In Stock

Mfr. Part No.
PF-KB1-15

Mouser Part No
652-PF-KB1-15

Bourns

Automotive Fuses POWrFuse BD 275Vac 500Vdc 15A

Learn More

Datasheet

144In Stock

£16.27

£14.51

£14.46

£13.33

Min.: 1
Mult.: 1

ESD Protection Diodes / TVS Diodes SO-8 2.8V 8DIODE Low Capacitance

CDNBS08-SLVU2.8-8
Bourns
1: £2.58
8,439In Stock

Mfr. Part No.
CDNBS08-SLVU2.8-8

Mouser Part No
652-CDNBS08SLVU2.8-8

Bourns

ESD Protection Diodes / TVS Diodes SO-8 2.8V 8DIODE Low Capacitance

Learn More

Datasheet

8,439In Stock

Cut Tape

£2.58

£1.86

£1.44

£1.31

Reel

£1.31

MouseReel Available

Min.: 1
Mult.: 1

: 2,500

NTC (Negative Temperature Coefficient) Thermistors 5 dia Power NTC 5ohm Y kink bulk

BN-LG05Y5R0MYB
Bourns
1: £0.196
13,570In Stock

Mfr. Part No.
BN-LG05Y5R0MYB

Mouser Part No
652-BN-LG05Y5R0MYB

Bourns

NTC (Negative Temperature Coefficient) Thermistors 5 dia Power NTC 5ohm Y kink bulk

Learn More

Datasheet

13,570In Stock

£0.196

£0.172

£0.146

£0.12

View

Min.: 1
Mult.: 1

Thermal Cut-offs TCO, High Current, Axial Lead, 55C, Self Hold AEC-Q200

AD55ABB
Bourns
1: £1.64
2,469In Stock

Mfr. Part No.
AD55ABB

Mouser Part No
652-AD55ABB

Bourns

Thermal Cut-offs TCO, High Current, Axial Lead, 55C, Self Hold AEC-Q200

Learn More

Datasheet

2,469In Stock

£1.64

£1.52

£1.11

£0.995

View

Min.: 1
Mult.: 1

Circuit Protection Devices

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Circuit Protection Devices

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