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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 7mm Radial Disc MOV - Kinked Leads, T&R

MOV-07D390KKTR
Bourns
1: £0.383
1,940In Stock

Mfr. Part No.
MOV-07D390KKTR

Mouser Part No
652-MOV-07D390KKTR

Bourns

Varistors 7mm Radial Disc MOV - Kinked Leads, T&R

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Datasheet

1,940In Stock

Cut Tape

£0.383

£0.246

£0.154

£0.129

Reel

£0.064

View

MouseReel Available

Min.: 1
Mult.: 1

: 2,000

Varistors 7mm Radial Disc MOV - Kinked Leads, T&R

MOV-07D431KKTR
Bourns
1: £0.15
7,344In Stock

Mfr. Part No.
MOV-07D431KKTR

Mouser Part No
652-MOV-07D431KKTR

Bourns

Varistors 7mm Radial Disc MOV - Kinked Leads, T&R

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Datasheet

7,344In Stock

Cut Tape

£0.15

£0.083

£0.072

£0.065

Reel

£0.059

View

Min.: 1
Mult.: 1

: 1,500

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

MOV-14D221KKTR
Bourns
1: £0.63
5,835In Stock

Mfr. Part No.
MOV-14D221KKTR

Mouser Part No
652-MOV-14D221KKTR

Bourns

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

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Datasheet

5,835In Stock

Cut Tape

£0.63

£0.377

£0.237

£0.208

Reel

£0.177

View

MouseReel Available

Min.: 1
Mult.: 1

: 500

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

MOV-14D470KKTR
Bourns
1: £0.691
4,360In Stock

Mfr. Part No.
MOV-14D470KKTR

Mouser Part No
652-MOV-14D470KKTR

Bourns

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

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Datasheet

4,360In Stock

Cut Tape

£0.691

£0.416

£0.266

£0.247

Reel

£0.209

View

MouseReel Available

Min.: 1
Mult.: 1

: 500

Gas Discharge Tubes - GDTs / Gas Plasma Arrestors GAS DISCHARGE TUBE 2POLE 600VOLT

2027-60-BT1LF
Bourns
1: £1.20
3,035In Stock

Mfr. Part No.
2027-60-BT1LF

Mouser Part No
652-2027-60-BT1LF

Bourns

Gas Discharge Tubes - GDTs / Gas Plasma Arrestors GAS DISCHARGE TUBE 2POLE 600VOLT

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Datasheet

3,035In Stock

Cut Tape

£1.20

£1.12

£0.934

£0.856

Reel

£0.672

View

Min.: 1
Mult.: 1

: 1,000

Gas Discharge Tubes - GDTs / Gas Plasma Arrestors GAS DISCHARGE TUBE HIGH VOLTAGE

2039-110-SM-RPLF
Bourns
1: £0.925
5,236In Stock

Mfr. Part No.
2039-110-SM-RPLF

Mouser Part No
652-2039-110-SM-RPLF

Bourns

Gas Discharge Tubes - GDTs / Gas Plasma Arrestors GAS DISCHARGE TUBE HIGH VOLTAGE

Datasheet

5,236In Stock

Cut Tape

£0.925

£0.849

£0.704

£0.65

View

Reel

£0.487

MouseReel Available

Min.: 1
Mult.: 1

: 1,500

Thermal Cut-offs TRIP TEMP 90C 5C TOL

HC90AY-1
Bourns
1: £1.05
3,108In Stock

Mfr. Part No.
HC90AY-1

Mouser Part No
652-HC90AY-1

Bourns

Thermal Cut-offs TRIP TEMP 90C 5C TOL

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Datasheet

3,108In Stock

£1.05

£0.995

£0.863

£0.796

View

Min.: 1
Mult.: 1

Thermal Cut-offs TRIP TEMP 77C 5C TOL

LC77AY-1
Bourns
1: £0.917
7,547In Stock

Mfr. Part No.
LC77AY-1

Mouser Part No
652-LC77AY-1

Bourns

Thermal Cut-offs TRIP TEMP 77C 5C TOL

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Datasheet

7,547In Stock

£0.917

£0.841

£0.698

£0.64

View

Min.: 1
Mult.: 1

Resettable Fuses - PPTC 2920 Resettable SMD PPTC 3.3A/6V

MF-LSMF330X-2
Bourns
1: £0.563
8,916In Stock

Mfr. Part No.
MF-LSMF330X-2

Mouser Part No
652-MF-LSMF330X-2

Bourns

Resettable Fuses - PPTC 2920 Resettable SMD PPTC 3.3A/6V

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Datasheet

8,916In Stock

Cut Tape

£0.563

£0.432

£0.405

£0.306

View

Reel

£0.226

MouseReel Available

Min.: 1
Mult.: 1

: 6,000

Resettable Fuses - PPTC PTC 2.5A 30V RADIAL LEADED UNCOATED

MF-R250U
Bourns
1: £0.375
7,526In Stock

Mfr. Part No.
MF-R250U

Mouser Part No
652-MF-R250U

Bourns

Resettable Fuses - PPTC PTC 2.5A 30V RADIAL LEADED UNCOATED

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Datasheet

7,526In Stock

£0.375

£0.337

£0.223

£0.201

View

Min.: 1
Mult.: 1

Varistors PV 140V 10%

PV140K4032R2
Bourns
1: £0.623
4,783In Stock

Mfr. Part No.
PV140K4032R2

Mouser Part No
652-PV140K4032R2

Bourns

Varistors PV 140V 10%

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Datasheet

4,783In Stock

Cut Tape

£0.623

£0.398

£0.349

£0.326

Reel

£0.299

View

MouseReel Available

Min.: 1
Mult.: 1

: 1,000

Thermal Cut-offs HC TCO 77C BL-51

SA77SB0
Bourns
1: £0.811
23,218In Stock

Mfr. Part No.
SA77SB0

Mouser Part No
652-SA77SB0

Bourns

Thermal Cut-offs HC TCO 77C BL-51

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Datasheet

23,218In Stock

Cut Tape

£0.811

£0.748

£0.621

£0.545

View

Reel

£0.349

MouseReel Available

Min.: 1
Mult.: 1

: 5,000

Thermal Cut-offs 72C Reinforced Cover SMD HC TCO

SC72AAA
Bourns
1: £0.826
4,529In Stock

Mfr. Part No.
SC72AAA

Mouser Part No
652-SC72AAA

Bourns

Thermal Cut-offs 72C Reinforced Cover SMD HC TCO

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Datasheet

4,529In Stock

Cut Tape

£0.826

£0.723

£0.718

£0.572

View

Reel

£0.441

MouseReel Available

Min.: 1
Mult.: 1

: 5,000

Surface Mount Fuses 4A Fast Acting 0603 SinglFuse

SF-0603F400-2
Bourns
1: £0.421
21,852In Stock

Mfr. Part No.
SF-0603F400-2

Mouser Part No
652-SF-0603F400-2

Bourns

Surface Mount Fuses 4A Fast Acting 0603 SinglFuse

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Datasheet

21,852In Stock

Cut Tape

£0.421

£0.368

£0.322

£0.292

View

Reel

£0.183

MouseReel Available

Min.: 1
Mult.: 1

: 5,000

Surface Mount Fuses 1A 32V TIME DELAY

SF-0603SP100-2
Bourns
1: £0.571
15,776In Stock

Mfr. Part No.
SF-0603SP100-2

Mouser Part No
652-SF-0603SP100-2

Bourns

Surface Mount Fuses 1A 32V TIME DELAY

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Datasheet

15,776In Stock

Cut Tape

£0.571

£0.453

£0.382

£0.335

View

Reel

£0.299

MouseReel Available

Min.: 1
Mult.: 1

: 5,000

Surface Mount Fuses 1.6A 32V TIME DELAY

SF-0603SP160-2
Bourns
1: £0.571
18,045In Stock

Mfr. Part No.
SF-0603SP160-2

Mouser Part No
652-SF-0603SP160-2

Bourns

Surface Mount Fuses 1.6A 32V TIME DELAY

Learn More

Datasheet

18,045In Stock

Cut Tape

£0.571

£0.453

£0.382

£0.335

View

Reel

£0.212

MouseReel Available

Min.: 1
Mult.: 1

: 5,000

Surface Mount Fuses 6A 50V TIME DELAY

SF-0603SP600-2
Bourns
1: £0.571
13,408In Stock

Mfr. Part No.
SF-0603SP600-2

Mouser Part No
652-SF-0603SP600-2

Bourns

Surface Mount Fuses 6A 50V TIME DELAY

Learn More

Datasheet

13,408In Stock

Cut Tape

£0.571

£0.437

£0.377

£0.331

View

Reel

£0.212

MouseReel Available

Min.: 1
Mult.: 1

: 5,000

Surface Mount Fuses 0603 time-lag met-foil. 5A Auto

SF-0603SPA500R-2
Bourns
1: £0.796
4,306In Stock

Mfr. Part No.
SF-0603SPA500R-2

Mouser Part No
652-SF-0603SPA500R-2

Bourns

Surface Mount Fuses 0603 time-lag met-foil. 5A Auto

Learn More

Datasheet

4,306In Stock

Cut Tape

£0.796

£0.636

£0.534

£0.464

View

Reel

£0.285

MouseReel Available

Min.: 1
Mult.: 1

: 5,000

Surface Mount Fuses 1206 slow-blow met-foil. 15A Auto

SF-1206SA1500R-2
Bourns
1: £0.736
7,076In Stock

Mfr. Part No.
SF-1206SA1500R-2

Mouser Part No
652-SF-1206SA1500R-2

Bourns

Surface Mount Fuses 1206 slow-blow met-foil. 15A Auto

Learn More

Datasheet

7,076In Stock

Cut Tape

£0.736

£0.585

£0.492

£0.428

View

Reel

£0.262

MouseReel Available

Min.: 1
Mult.: 1

: 5,000

Thyristor Surge Protection Devices - TSPD Very Low Voltage Bidirectional

TISP4030L1AJR-S
Bourns
1: £0.601
19,301In Stock

Mfr. Part No.
TISP4030L1AJR-S

Mouser Part No
652-TISP4030L1AJR-S

Bourns

Thyristor Surge Protection Devices - TSPD Very Low Voltage Bidirectional

Learn More

Datasheet

19,301In Stock

Cut Tape

£0.601

£0.327

£0.221

£0.169

Reel

£0.125

View

MouseReel Available

Min.: 1
Mult.: 1

: 5,000

Thyristor Surge Protection Devices - TSPD Very Low Voltage Bidirectional

TISP4040L1BJR-S
Bourns
1: £0.503
11,387In Stock
12,000Expected 21/08/2026

Mfr. Part No.
TISP4040L1BJR-S

Mouser Part No
652-TISP4040L1BJR-S

Bourns

Thyristor Surge Protection Devices - TSPD Very Low Voltage Bidirectional

Learn More

Datasheet

11,387In Stock

12,000Expected 21/08/2026

Cut Tape

£0.503

£0.362

£0.227

£0.175

Reel

£0.137

View

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

Gas Discharge Tubes - GDTs / Gas Plasma Arrestors Miniature 3-Pole Gas Discharge Tube

2036-09-B2FLF
Bourns
1: £1.96
1,134In Stock

Mfr. Part No.
2036-09-B2FLF

Mouser Part No
652-2036-09-B2FLF

Bourns

Gas Discharge Tubes - GDTs / Gas Plasma Arrestors Miniature 3-Pole Gas Discharge Tube

Datasheet

1,134In Stock

£1.96

£1.82

£1.51

£1.35

View

Min.: 1
Mult.: 1

Resettable Fuses - PPTC 2920 Resettable SMD PPTC 2.6A/16V

MF-LSMF260/16X-2
Bourns
1: £0.578
7,826In Stock

Mfr. Part No.
MF-LSMF260/16X-2

Mouser Part No
652-MF-LSMF260/16X-2

Bourns

Resettable Fuses - PPTC 2920 Resettable SMD PPTC 2.6A/16V

Learn More

Datasheet

7,826In Stock

Cut Tape

£0.578

£0.464

£0.416

£0.314

View

Reel

£0.237

MouseReel Available

Min.: 1
Mult.: 1

: 4,000

Resettable Fuses - PPTC 42V 200MA-HD 40A MAX

MF-MSHT020KX-2
Bourns
1: £0.563
8,996In Stock

Mfr. Part No.
MF-MSHT020KX-2

Mouser Part No
652-MF-MSHT020KX-2

Bourns

Resettable Fuses - PPTC 42V 200MA-HD 40A MAX

Learn More

Datasheet

8,996In Stock

Cut Tape

£0.563

£0.472

£0.416

£0.392

Reel

£0.314

View

MouseReel Available

Min.: 1
Mult.: 1

: 2,000

Resettable Fuses - PPTC 6V 1.1A-HD 100A MAX

MF-NSMF110-2
Bourns
1: £0.203
20,262In Stock

Mfr. Part No.
MF-NSMF110-2

Mouser Part No
652-MF-NSMF110-2

Bourns

Resettable Fuses - PPTC 6V 1.1A-HD 100A MAX

Learn More

Datasheet

20,262In Stock

Cut Tape

£0.203

£0.186

£0.169

£0.158

Reel

£0.115

View

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

Circuit Protection Devices

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Circuit Protection Devices

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