.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 (8,097)

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 #

Varistors ZV 40V 10%

ZV40K1812601NIR1
Bourns
1: $0.778
11,280In Stock

Mfr. Part No.
ZV40K1812601NIR1

Mouser Part No
652-ZV40K1812601NIR1

Bourns

Varistors ZV 40V 10%

Learn More

Datasheet

11,280In Stock

Cut Tape

$0.778

$0.488

$0.424

$0.395

Reel

$0.36

View

MouseReel Available

Min.: 1
Mult.: 1

Reel: 1,000

Gas Discharge Tubes - GDTs / Gas Plasma Arrestors MINI TRIGARD SURFACE MOUNT GDT

2030-42T-SMLF
Bourns
1: $2.39
1,053In Stock

Mfr. Part No.
2030-42T-SMLF

Mouser Part No
652-2030-42T-SMLF

Bourns

Gas Discharge Tubes - GDTs / Gas Plasma Arrestors MINI TRIGARD SURFACE MOUNT GDT

Learn More

Datasheet

1,053In Stock

$2.39

$2.27

$2.00

$1.90

View

Min.: 1
Mult.: 1

Varistors AVHT AUTO SERIES 17V

AV17K1210401NIR1HT
Bourns
1: $0.278
13,626In Stock

Mfr. Part No.
AV17K1210401NIR1HT

Mouser Part No
652-AV17K1210401NI1H

Bourns

Varistors AVHT AUTO SERIES 17V

Learn More

Datasheet

13,626In Stock

Cut Tape

$0.278

$0.19

Reel

$0.189

MouseReel Available

Min.: 1
Mult.: 1

Reel: 2,500

LED Protection Devices LED Shunt Protector 6volts 1 LEDs

LSP0600BJR-S
Bourns
1: $1.33
21,919In Stock

Mfr. Part No.
LSP0600BJR-S

Mouser Part No
652-LSP0600BJR-S

Bourns

LED Protection Devices LED Shunt Protector 6volts 1 LEDs

Learn More

Datasheet

21,919In Stock

Cut Tape

$1.33

$0.824

$0.537

$0.413

Reel

$0.322

View

MouseReel Available

Min.: 1
Mult.: 1

Reel: 3,000

Resettable Fuses - PPTC PTC RESETTABLE 0.25A 6V SMD 0603

MF-FSMF025X-2
Bourns
1: $0.737
10,541In Stock

Mfr. Part No.
MF-FSMF025X-2

Mouser Part No
652-MF-FSMF025X-2

Bourns

Resettable Fuses - PPTC PTC RESETTABLE 0.25A 6V SMD 0603

Learn More

Datasheet

10,541In Stock

Cut Tape

$0.737

$0.57

$0.534

$0.403

View

Reel

$0.256

MouseReel Available

Min.: 1
Mult.: 1

Reel: 6,000

Resettable Fuses - PPTC 30V 200MA-HD 20A MAX

MF-NSHT020KX-2
Bourns
1: $0.751
10,248In Stock

Mfr. Part No.
MF-NSHT020KX-2

Mouser Part No
652-MF-NSHT020KX-2

Bourns

Resettable Fuses - PPTC 30V 200MA-HD 20A MAX

Learn More

Datasheet

10,248In Stock

Cut Tape

$0.751

$0.571

$0.535

$0.404

Reel

$0.293

View

MouseReel Available

Min.: 1
Mult.: 1

Reel: 3,000

Resettable Fuses - PPTC 16V 100MA-HD 40A MAX

MF-PSHT010KX-2
Bourns
1: $0.542
14,119In Stock

Mfr. Part No.
MF-PSHT010KX-2

Mouser Part No
652-MF-PSHT010KX-2

Bourns

Resettable Fuses - PPTC 16V 100MA-HD 40A MAX

Learn More

Datasheet

14,119In Stock

Cut Tape

$0.542

$0.488

$0.404

$0.375

Reel

$0.30

View

MouseReel Available

Min.: 1
Mult.: 1

Reel: 3,000

Resettable Fuses - PPTC 9V 200MA-HD 40A MAX

MF-PSMF020X-2
Bourns
1: $0.417
17,816In Stock

Mfr. Part No.
MF-PSMF020X-2

Mouser Part No
652-MF-PSMF020X-2

Bourns

Resettable Fuses - PPTC 9V 200MA-HD 40A MAX

Learn More

Datasheet

17,816In Stock

Cut Tape

$0.417

$0.318

$0.264

$0.26

Reel

$0.225

View

MouseReel Available

Min.: 1
Mult.: 1

Reel: 3,000

Resettable Fuses - PPTC PTC RESETTABLE 0.12A 240V RADIAL LEADED

MF-RM012/240-2
Bourns
1: $0.778
9,058In Stock

Mfr. Part No.
MF-RM012/240-2

Mouser Part No
652-MF-RM012/240-2

Bourns

Resettable Fuses - PPTC PTC RESETTABLE 0.12A 240V RADIAL LEADED

Learn More

Datasheet

9,058In Stock

Cut Tape

$0.778

$0.738

$0.677

$0.596

View

Reel

$0.389

Min.: 1
Mult.: 1

Reel: 4,000

Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 7200volts 1pF STRAIGHT LEADS

SA2-7200-CLT-STD
Bourns
1: $5.02
3,150In Stock

Mfr. Part No.
SA2-7200-CLT-STD

Mouser Part No
652-SA2-7200-CLTSTD

Bourns

Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 7200volts 1pF STRAIGHT LEADS

Learn More

Datasheet

3,150In Stock

Cut Tape

$5.02

$4.18

$3.86

$3.21

Reel

$2.24

View

Min.: 1
Mult.: 1

Reel: 1,000

Varistors ZV 50V 10%

ZV50K2220801NIR1HT
Bourns
1: $1.56
6,270In Stock

Mfr. Part No.
ZV50K2220801NIR1HT

Mouser Part No
652-ZV50K2220801NIRH

Bourns

Varistors ZV 50V 10%

Learn More

Datasheet

6,270In Stock

Cut Tape

$1.56

$1.01

$0.894

$0.838

$0.809

Reel

$0.669

MouseReel Available

Min.: 1
Mult.: 1

Reel: 1,000

Gas Discharge Tubes - GDTs / Gas Plasma Arrestors GAS DISCHARGE TUBE MINI 2POLE 470VOLT

2035-47-SM-RPLF
Bourns
1: $0.751
3,035In Stock

Mfr. Part No.
2035-47-SM-RPLF

Mouser Part No
652-2035-47-SM-RPLF

Bourns

Gas Discharge Tubes - GDTs / Gas Plasma Arrestors GAS DISCHARGE TUBE MINI 2POLE 470VOLT

Datasheet

3,035In Stock

Cut Tape

$0.751

$0.689

$0.607

Reel

$0.606

MouseReel Available

Min.: 1
Mult.: 1

Reel: 1,500

Varistors AV AUTO SERIES 20V

AV20K1206201NIR1
Bourns
1: $0.334
13,692In Stock

Mfr. Part No.
AV20K1206201NIR1

Mouser Part No
652-AV20K1206201NIR1

Bourns

Varistors AV AUTO SERIES 20V

Learn More

Datasheet

13,692In Stock

Cut Tape

$0.334

$0.15

$0.139

$0.138

View

Reel

$0.132

MouseReel Available

Min.: 1
Mult.: 1

Reel: 2,500

Varistors AV AUTO SERIES 30V

AV30K1210401NIR1
Bourns
1: $0.361
22,022In Stock

Mfr. Part No.
AV30K1210401NIR1

Mouser Part No
652-AV30K1210401NIR1

Bourns

Varistors AV AUTO SERIES 30V

Learn More

Datasheet

22,022In Stock

Cut Tape

$0.361

$0.243

$0.218

$0.207

Reel

$0.185

View

MouseReel Available

Min.: 1
Mult.: 1

Reel: 2,500

Thermal Cut-offs TRIP TEMP 90C 5C TOL

HC90AY-1
Bourns
1: $2.09
3,231In Stock

Mfr. Part No.
HC90AY-1

Mouser Part No
652-HC90AY-1

Bourns

Thermal Cut-offs TRIP TEMP 90C 5C TOL

Learn More

Datasheet

3,231In Stock

$2.09

$1.93

$1.08

$1.01

View

Min.: 1
Mult.: 1

Thermal Cut-offs TRIP TEMP 77C 5C TOL

LC77AY-1
Bourns
1: $1.70
7,567In Stock

Mfr. Part No.
LC77AY-1

Mouser Part No
652-LC77AY-1

Bourns

Thermal Cut-offs TRIP TEMP 77C 5C TOL

Learn More

Datasheet

7,567In Stock

$1.70

$1.56

$1.29

$1.18

View

Min.: 1
Mult.: 1

Resettable Fuses - PPTC 30V 3A-HD 40A MAX

MF-R300-2
Bourns
1: $0.681
12,562In Stock

Mfr. Part No.
MF-R300-2

Mouser Part No
652-MF-R300-2

Bourns

Resettable Fuses - PPTC 30V 3A-HD 40A MAX

Learn More

Datasheet

12,562In Stock

Cut Tape

$0.681

$0.628

$0.523

$0.482

Reel

$0.307

View

Min.: 1
Mult.: 1

Reel: 3,000

Varistors PV 140V 10%

PV140K4032R2
Bourns
1: $0.917
4,795In Stock

Mfr. Part No.
PV140K4032R2

Mouser Part No
652-PV140K4032R2

Bourns

Varistors PV 140V 10%

Learn More

Datasheet

4,795In Stock

Cut Tape

$0.917

$0.582

$0.509

$0.474

Reel

$0.435

View

MouseReel Available

Min.: 1
Mult.: 1

Reel: 1,000

Thermal Cut-offs HC TCO 77C BL-51

SA77SB0
Bourns
1: $1.43
26,257In Stock

Mfr. Part No.
SA77SB0

Mouser Part No
652-SA77SB0

Bourns

Thermal Cut-offs HC TCO 77C BL-51

Learn More

Datasheet

26,257In Stock

Cut Tape

$1.43

$1.32

$1.09

$1.01

View

Reel

$0.607

MouseReel Available

Min.: 1
Mult.: 1

Reel: 5,000

Thermal Cut-offs 72C Reinforced Cover SMD HC TCO

SC72AAA
Bourns
1: $1.17
4,950In Stock

Mfr. Part No.
SC72AAA

Mouser Part No
652-SC72AAA

Bourns

Thermal Cut-offs 72C Reinforced Cover SMD HC TCO

Learn More

Datasheet

4,950In Stock

Cut Tape

$1.17

$1.11

$1.10

$0.977

View

Reel

$0.799

MouseReel Available

Min.: 1
Mult.: 1

Reel: 5,000

Surface Mount Fuses 4A Fast Acting 0603 SinglFuse

SF-0603F400-2
Bourns
1: $0.709
22,290In Stock

Mfr. Part No.
SF-0603F400-2

Mouser Part No
652-SF-0603F400-2

Bourns

Surface Mount Fuses 4A Fast Acting 0603 SinglFuse

Learn More

Datasheet

22,290In Stock

Cut Tape

$0.709

$0.669

$0.595

$0.51

View

Reel

$0.313

MouseReel Available

Min.: 1
Mult.: 1

Reel: 5,000

Surface Mount Fuses .63A 32V TIME DELAY

SF-0603SP063-2
Bourns
1: $1.00
5,838In Stock

Mfr. Part No.
SF-0603SP063-2

Mouser Part No
652-SF-0603SP063-2

Bourns

Surface Mount Fuses .63A 32V TIME DELAY

Learn More

Datasheet

5,838In Stock

Cut Tape

$1.00

$0.84

$0.708

$0.588

View

Reel

$0.367

MouseReel Available

Min.: 1
Mult.: 1

Reel: 5,000

Surface Mount Fuses 1A 32V TIME DELAY

SF-0603SP100-2
Bourns
1: $0.653
17,619In Stock

Mfr. Part No.
SF-0603SP100-2

Mouser Part No
652-SF-0603SP100-2

Bourns

Surface Mount Fuses 1A 32V TIME DELAY

Learn More

Datasheet

17,619In Stock

Cut Tape

$0.653

$0.567

$0.487

$0.453

View

Reel

$0.342

MouseReel Available

Min.: 1
Mult.: 1

Reel: 5,000

Surface Mount Fuses 6A 50V TIME DELAY

SF-0603SP600-2
Bourns
1: $1.15
13,469In 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

13,469In Stock

Cut Tape

$1.15

$1.06

$0.881

$0.813

$0.343

Reel

$0.342

MouseReel Available

Min.: 1
Mult.: 1

Reel: 5,000

Varistors ZV 40V 10%

ZV40K2220102NIR1HT
Bourns
1: $1.56
5,208In Stock

Mfr. Part No.
ZV40K2220102NIR1HT

Mouser Part No
652-ZV40K2220102NIRH

Bourns

Varistors ZV 40V 10%

Learn More

Datasheet

5,208In Stock

Cut Tape

$1.56

$1.01

$0.892

$0.837

Reel

$0.774

View

MouseReel Available

Min.: 1
Mult.: 1

Reel: 1,000

Circuit Protection Devices

All Results (8,097)

Customer Service Office

Company

Resources

Support

Circuit Protection Devices

All Results (8,097)

Circuit Protection

Industrial Automation

Semiconductors

Thermal Management