.hide-partial { max-height: none; } .show-more { display: none; }

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 (8,024)

Search within results

In Stock

Normally Stocked

Active

New Products

RoHS Compliant

.search-refine-wrapper { display: inline-block; min-width: 100%; } .scroll-body { overflow-x: visible; } .search-table-wrapper { overflow: visible; } .hide-partial { max-height: none; } .show-more { display: none; }

Select a category below to see filtering options and narrow down your search.

Part #

ESD Protection Diodes / TVS Diodes TVS 7V/12V AEC-Q101

CDSOT23-SM712-Q
Bourns
1: £1.07
4,185In Stock
24,000On Order
New Product

Mfr. Part No.
CDSOT23-SM712-Q

Mouser Part No
652-CDSOT23-SM712-Q

New Product

Bourns

ESD Protection Diodes / TVS Diodes TVS 7V/12V AEC-Q101

Learn More

Datasheet

4,185In Stock

24,000On Order

Cut Tape

£1.07

£0.67

£0.443

£0.347

Reel

£0.265

View

Min.: 1
Mult.: 1

: 3,000

Resettable Fuses - PPTC 2920 Resettable SMD PPTC 0.35A/72V

MF-LSMF035/72X-2
Bourns
1: £0.751
3,188In Stock
New Product

Mfr. Part No.
MF-LSMF035/72X-2

Mouser Part No
652-MF-LSMF035/72X-2

New Product

Bourns

Resettable Fuses - PPTC 2920 Resettable SMD PPTC 0.35A/72V

Learn More

Datasheet

3,188In Stock

Cut Tape

£0.751

£0.568

£0.43

£0.416

View

Reel

£0.257

Min.: 1
Mult.: 1

: 4,000

Resettable Fuses - PPTC 2920 Resettable SMD PPTC 0.5A/72V

MF-LSMF050/72X-2
Bourns
1: £0.751
3,054In Stock
New Product

Mfr. Part No.
MF-LSMF050/72X-2

Mouser Part No
652-MF-LSMF050/72X-2

New Product

Bourns

Resettable Fuses - PPTC 2920 Resettable SMD PPTC 0.5A/72V

Learn More

Datasheet

3,054In Stock

Cut Tape

£0.751

£0.568

£0.43

£0.416

View

Reel

£0.257

Min.: 1
Mult.: 1

: 4,000

Resettable Fuses - PPTC 2920 Resettable SMD PPTC 2.0A/33V

MF-LSMF200/33X-2
Bourns
1: £0.917
3,047In Stock
New Product

Mfr. Part No.
MF-LSMF200/33X-2

Mouser Part No
652-MF-LSMF200/33X-2

New Product

Bourns

Resettable Fuses - PPTC 2920 Resettable SMD PPTC 2.0A/33V

Learn More

Datasheet

3,047In Stock

Cut Tape

£0.917

£0.683

£0.512

£0.501

View

Reel

£0.306

Min.: 1
Mult.: 1

: 4,000

Resettable Fuses - PPTC 2920 Resettable SMD PPTC 0.75A/72V

MF-LSMF075/72X-2
Bourns
1: £0.759
3,199In Stock
New Product

Mfr. Part No.
MF-LSMF075/72X-2

Mouser Part No
652-MF-LSMF075/72X-2

New Product

Bourns

Resettable Fuses - PPTC 2920 Resettable SMD PPTC 0.75A/72V

Learn More

Datasheet

3,199In Stock

Cut Tape

£0.759

£0.569

£0.431

£0.417

View

Reel

£0.257

Min.: 1
Mult.: 1

: 4,000

ESD Protection Diodes / TVS Diodes 1KA high current bidirectional TVS diodes

PTVS1-026C-H
Bourns
1: £3.28
10,408In Stock

Mfr. Part No.
PTVS1-026C-H

Mouser Part No
652-PTVS1-026C-H

Bourns

ESD Protection Diodes / TVS Diodes 1KA high current bidirectional TVS diodes

Learn More

Datasheet

10,408In Stock

Cut Tape

£3.28

£2.19

£1.96

£1.90

£1.79

Reel

£1.70

MouseReel Available

Min.: 1
Mult.: 1

: 2,500

Fuse Holder CFB1 FUSE BLOCK, NO FUSE

CFB1-NF
Bourns
1: £38.99
22In Stock
New Product

Mfr. Part No.
CFB1-NF

Mouser Part No
652-CFB1-NF

New Product

Bourns

Fuse Holder CFB1 FUSE BLOCK, NO FUSE

Learn More

Datasheet

22In Stock

£38.99

£32.34

£29.83

£24.18

Min.: 1
Mult.: 1

Fuse Holder CFB1 FUSE BLOCK 150A FUSE

CFB1-150
Bourns
1: £47.19
33In Stock
New Product

Mfr. Part No.
CFB1-150

Mouser Part No
652-CFB1-150

New Product

Bourns

Fuse Holder CFB1 FUSE BLOCK 150A FUSE

Learn More

Datasheet

33In Stock

£47.19

£42.61

£32.96

£31.88

View

Min.: 1
Mult.: 1

ESD Protection Diodes / TVS Diodes 1KA high current bidirectional TVS diodes

PTVS1-086C-H
Bourns
1: £4.07
9,845In Stock

Mfr. Part No.
PTVS1-086C-H

Mouser Part No
652-PTVS1-086C-H

Bourns

ESD Protection Diodes / TVS Diodes 1KA high current bidirectional TVS diodes

Learn More

Datasheet

9,845In Stock

Cut Tape

£4.07

£2.87

£2.47

£2.42

View

Reel

£2.15

MouseReel Available

Min.: 1
Mult.: 1

: 2,500

ESD Protection Diodes / TVS Diodes 1KA high current bidirectional TVS diodes

PTVS1-029C-H
Bourns
1: £3.28
8,609In Stock

Mfr. Part No.
PTVS1-029C-H

Mouser Part No
652-PTVS1-029C-H

Bourns

ESD Protection Diodes / TVS Diodes 1KA high current bidirectional TVS diodes

Learn More

Datasheet

8,609In Stock

Cut Tape

£3.28

£2.22

£1.96

£1.90

£1.79

Reel

£1.72

MouseReel Available

Min.: 1
Mult.: 1

: 2,500

Thermal Cut-offs TCO, High Current, SMD, 90C, Self Hold AEC-Q200

SD90ABB
Bourns
1: £1.76
15,400In Stock

Mfr. Part No.
SD90ABB

Mouser Part No
652-SD90ABB

Bourns

Thermal Cut-offs TCO, High Current, SMD, 90C, Self Hold AEC-Q200

Learn More

Datasheet

15,400In Stock

Cut Tape

£1.76

£1.63

£1.35

£1.20

View

Reel

£0.801

MouseReel Available

Min.: 1
Mult.: 1

: 4,000

Gas Discharge Tubes - GDTs / Gas Plasma Arrestors Next-Generation GDT 5mm 350V

GDT35-35-S1-RP
Bourns
1: £1.34
1,573In Stock

Mfr. Part No.
GDT35-35-S1-RP

Mouser Part No
652-GDT35-35-S1-RP

Bourns

Gas Discharge Tubes - GDTs / Gas Plasma Arrestors Next-Generation GDT 5mm 350V

Learn More

Datasheet

1,573In Stock

Cut Tape

£1.34

£1.23

£1.02

£0.943

Reel

£0.684

View

MouseReel Available

Min.: 1
Mult.: 1

: 1,000

Gas Discharge Tubes - GDTs / Gas Plasma Arrestors Next-Generation GDT 5mm 420V

GDT35-42-S1-RP
Bourns
1: £1.34
1,965In Stock

Mfr. Part No.
GDT35-42-S1-RP

Mouser Part No
652-GDT35-42-S1-RP

Bourns

Gas Discharge Tubes - GDTs / Gas Plasma Arrestors Next-Generation GDT 5mm 420V

Learn More

Datasheet

1,965In Stock

Cut Tape

£1.34

£1.23

£1.02

£0.943

Reel

£0.684

View

MouseReel Available

Min.: 1
Mult.: 1

: 1,000

Gas Discharge Tubes - GDTs / Gas Plasma Arrestors Next-Generation GDT 5mm 470V

GDT35-47-S1-RP
Bourns
1: £1.34
1,762In Stock

Mfr. Part No.
GDT35-47-S1-RP

Mouser Part No
652-GDT35-47-S1-RP

Bourns

Gas Discharge Tubes - GDTs / Gas Plasma Arrestors Next-Generation GDT 5mm 470V

Learn More

Datasheet

1,762In Stock

Cut Tape

£1.34

£1.23

£1.02

£0.943

Reel

£0.684

View

MouseReel Available

Min.: 1
Mult.: 1

: 1,000

Gas Discharge Tubes - GDTs / Gas Plasma Arrestors Next-Generation GDT 5mm 470V, REEL

GDT25-47-S1-RP
Bourns
1: £0.826
2,812In Stock

Mfr. Part No.
GDT25-47-S1-RP

Mouser Part No
652-GDT25-47-S1-RP

Bourns

Gas Discharge Tubes - GDTs / Gas Plasma Arrestors Next-Generation GDT 5mm 470V, REEL

Learn More

Datasheet

2,812In Stock

Cut Tape

£0.826

£0.746

£0.628

£0.58

Reel

£0.427

View

MouseReel Available

Min.: 1
Mult.: 1

: 1,500

Industrial Surge Protectors DATA and SIGNAL SPD,2L,110V,Circuit 6

2510-2L6-48
Bourns
1: £62.25
108In Stock

Mfr. Part No.
2510-2L6-48

Mouser Part No
652-2510-2L6-48

Bourns

Industrial Surge Protectors DATA and SIGNAL SPD,2L,110V,Circuit 6

Learn More

Datasheet

108In Stock

£62.25

£58.86

£42.52

£38.61

Min.: 1
Mult.: 1

Varistors 20mm Radial Disc MOV - Kinked Leads, T&R

MOV-20D621KKTR
Bourns
1: £1.33
4,761In Stock
6,000Expected 19/10/2026

Mfr. Part No.
MOV-20D621KKTR

Mouser Part No
652-MOV-20D621KKTR

Bourns

Varistors 20mm Radial Disc MOV - Kinked Leads, T&R

Learn More

Datasheet

4,761In Stock

6,000Expected 19/10/2026

Cut Tape

£1.33

£0.818

£0.562

Reel

£0.525

£0.464

View

MouseReel Available

Min.: 1
Mult.: 1

: 250

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

MOV-14D271KKTR
Bourns
1: £0.63
17,500In Stock

Mfr. Part No.
MOV-14D271KKTR

Mouser Part No
652-MOV-14D271KKTR

Bourns

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

Learn More

Datasheet

17,500In Stock

Cut Tape

£0.63

£0.38

£0.238

£0.21

Reel

£0.179

View

MouseReel Available

Min.: 1
Mult.: 1

: 500

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

SDD5ABB
Bourns
1: £1.94
3,835In Stock

Mfr. Part No.
SDD5ABB

Mouser Part No
652-SDD5ABB

Bourns

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

Datasheet

3,835In Stock

Cut Tape

£1.94

£1.75

£1.41

£1.23

View

Reel

£0.801

MouseReel Available

Min.: 1
Mult.: 1

: 4,000

Automotive Fuses POWrFuse BD 275Vac 500Vdc 15A

PF-KB1-15
Bourns
1: £17.51
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

£17.51

£15.96

£15.92

£15.91

View

Min.: 1
Mult.: 1

Automotive Fuses POWrFuse TH 275Vac 500Vdc 30A

PF-KT1-30
Bourns
1: £25.81
282In Stock

Mfr. Part No.
PF-KT1-30

Mouser Part No
652-PF-KT1-30

Bourns

Automotive Fuses POWrFuse TH 275Vac 500Vdc 30A

Learn More

Datasheet

282In Stock

£25.81

£21.41

£12.30

Min.: 1
Mult.: 1

Board Mount Surge Protectors 650V, 50mA Single Bidirectional TBU, AECQ

TBU-CA065-050-WH-Q
Bourns
1: £1.68
8,611In Stock

Mfr. Part No.
TBU-CA065-050-WH-Q

Mouser Part No
652-TBU-CA065-050WHQ

Bourns

Board Mount Surge Protectors 650V, 50mA Single Bidirectional TBU, AECQ

Learn More

Datasheet

8,611In Stock

Cut Tape

£1.68

£1.34

£0.732

£0.703

Reel

£0.678

View

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

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

CDNBS08-SLVU2.8-8
Bourns
1: £2.64
9,442In 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

9,442In Stock

Cut Tape

£2.64

£1.92

£1.45

£1.31

Reel

£1.31

MouseReel Available

Min.: 1
Mult.: 1

: 2,500

Surface Mount Fuses 10A 250V FAST ACTING

SF-3812F1000T-2
Bourns
1: £2.64
10,716In Stock

Mfr. Part No.
SF-3812F1000T-2

Mouser Part No
652-SF-3812F1000T-2

Bourns

Surface Mount Fuses 10A 250V FAST ACTING

Learn More

Datasheet

10,716In Stock

Cut Tape

£2.64

£2.22

£1.75

£1.55

Reel

£1.09

View

MouseReel Available

Min.: 1
Mult.: 1

: 2,500

Industrial & Electrical Fuses POWrFuse TH 600Vac 125Vdc 63A

PF-GT3-63
Bourns
1: £24.57
274In Stock Restricted Availability

Mfr. Part No.
PF-GT3-63

Mouser Part No
652-PF-GT3-63

Bourns

Industrial & Electrical Fuses POWrFuse TH 600Vac 125Vdc 63A

Learn More

Datasheet

274In Stock

£24.57

£18.46

£18.19

£12.27

£11.72

Min.: 1
Mult.: 1

Restricted Availability

Circuit Protection Devices

All Results (8,024)

Customer Service Office

Company

Resources

Support

Circuit Protection Devices

All Results (8,024)

Circuit Protection

Industrial Automation

Semiconductors

Thermal Management