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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 (8,097)

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Part #

Varistors AV AUTO SERIES 30V

AV30K1210401NIR1
Bourns
1: $0.261
22,022In Stock

Mfr. Part No.
AV30K1210401NIR1

Mouser Part No
652-AV30K1210401NIR1

Bourns

Varistors AV AUTO SERIES 30V

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Datasheet

22,022In Stock

Cut Tape

$0.261

$0.176

$0.157

$0.149

Reel

$0.133

View

MouseReel Available

Min.: 1
Mult.: 1

Reel: 2,500

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

MF-R300-2
Bourns
1: $0.49
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

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Datasheet

12,562In Stock

Cut Tape

$0.49

$0.452

$0.376

$0.347

Reel

$0.234

View

Min.: 1
Mult.: 1

Reel: 3,000

Varistors PV 140V 10%

PV140K4032R2
Bourns
1: $0.661
4,795In Stock

Mfr. Part No.
PV140K4032R2

Mouser Part No
652-PV140K4032R2

Bourns

Varistors PV 140V 10%

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Datasheet

4,795In Stock

Cut Tape

$0.661

$0.419

$0.366

$0.341

Reel

$0.313

View

MouseReel Available

Min.: 1
Mult.: 1

Reel: 1,000

Thermal Cut-offs HC TCO 77C BL-51

SA77SB0
Bourns
1: $1.03
26,257In Stock

Mfr. Part No.
SA77SB0

Mouser Part No
652-SA77SB0

Bourns

Thermal Cut-offs HC TCO 77C BL-51

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Datasheet

26,257In Stock

Cut Tape

$1.03

$0.948

$0.787

$0.726

View

Reel

$0.455

MouseReel Available

Min.: 1
Mult.: 1

Reel: 5,000

Thermal Cut-offs 72C Reinforced Cover SMD HC TCO

SC72AAA
Bourns
1: $0.84
4,950In 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

4,950In Stock

Cut Tape

$0.84

$0.795

$0.79

$0.704

View

Reel

$0.585

MouseReel Available

Min.: 1
Mult.: 1

Reel: 5,000

Surface Mount Fuses 4A Fast Acting 0603 SinglFuse

SF-0603F400-2
Bourns
1: $0.511
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

$0.511

$0.481

$0.428

$0.368

View

Reel

$0.226

MouseReel Available

Min.: 1
Mult.: 1

Reel: 5,000

Surface Mount Fuses 1A 32V TIME DELAY

SF-0603SP100-2
Bourns
1: $0.47
17,619In 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

17,619In Stock

Cut Tape

$0.47

$0.408

$0.35

$0.326

View

Reel

$0.265

MouseReel Available

Min.: 1
Mult.: 1

Reel: 5,000

Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 250volts 3E SMT GDT 7.2X5.0mm DIA

2052-25-SM-RPLF
Bourns
1: $1.74
2,666In Stock

Mfr. Part No.
2052-25-SM-RPLF

Mouser Part No
652-2052-25-SM-RPLF

Bourns

Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 250volts 3E SMT GDT 7.2X5.0mm DIA

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Datasheet

2,666In Stock

Cut Tape

$1.74

$1.47

$1.17

$1.02

View

Reel

$0.72

MouseReel Available

Min.: 1
Mult.: 1

Reel: 2,700

Industrial Surge Protectors AC SPD 10KA RATED 120V

1202-120S
Bourns
1: $102.67
23In Stock

Mfr. Part No.
1202-120S

Mouser Part No
652-1202-120S

Bourns

Industrial Surge Protectors AC SPD 10KA RATED 120V

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Datasheet

23In Stock

$102.67

$86.35

$64.51

$64.50

View

Min.: 1
Mult.: 1

Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 60volts Fail Short

2020-15T-C2FLF
Bourns
1: $5.08
1,022In Stock

Mfr. Part No.
2020-15T-C2FLF

Mouser Part No
652-2020-15T-C2FLF

Bourns

Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 60volts Fail Short

Datasheet

1,022In Stock

$5.08

$4.21

$3.90

$3.23

View

Min.: 1
Mult.: 1

Gas Discharge Tubes - GDTs / Gas Plasma Arrestors Sparkover100V/s 350V 3 Pole

2026-35-C2LF
Bourns
1: $2.06
1,869In Stock

Mfr. Part No.
2026-35-C2LF

Mouser Part No
652-2026-35-C2LF

Bourns

Gas Discharge Tubes - GDTs / Gas Plasma Arrestors Sparkover100V/s 350V 3 Pole

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Datasheet

1,869In Stock

$2.06

$1.60

$1.59

$1.40

View

Min.: 1
Mult.: 1

Varistors AVHT AUTO SERIES 17V

AV17K1206201NIR1HT
Bourns
1: $0.28
36,351In Stock

Mfr. Part No.
AV17K1206201NIR1HT

Mouser Part No
652-AV17K1206201NI1H

Bourns

Varistors AVHT AUTO SERIES 17V

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Datasheet

36,351In Stock

Cut Tape

$0.28

$0.167

$0.15

$0.142

Reel

$0.113

View

MouseReel Available

Min.: 1
Mult.: 1

Reel: 2,500

Varistors Chip Guard 0402 12 VOLTS

CG0402MLC-12LGA
Bourns
1: $0.311
12,930In Stock

Mfr. Part No.
CG0402MLC-12LGA

Mouser Part No
652-CG0402MLC-12LGA

Bourns

Varistors Chip Guard 0402 12 VOLTS

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Datasheet

12,930In Stock

Cut Tape

$0.311

$0.192

$0.166

$0.154

View

Reel

$0.13

MouseReel Available

Min.: 1
Mult.: 1

Reel: 10,000

Varistors IsoMOV 3KA 175Vrms Bulk In-Line

IsoM3-175-B-L2
Bourns
1: $1.19
3,128In Stock

Mfr. Part No.
IsoM3-175-B-L2

Mouser Part No
652-ISOM3-175-B-L2

Bourns

Varistors IsoMOV 3KA 175Vrms Bulk In-Line

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Datasheet

3,128In Stock

$1.19

$0.662

$0.658

$0.657

View

Min.: 1
Mult.: 1

Resettable Fuses - PPTC PTC RESETTABLE 0.17A 60V RADIAL LEADED

MF-R017-2
Bourns
1: $0.45
11,331In Stock

Mfr. Part No.
MF-R017-2

Mouser Part No
652-MF-R017-2

Bourns

Resettable Fuses - PPTC PTC RESETTABLE 0.17A 60V RADIAL LEADED

Learn More

Datasheet

11,331In Stock

Cut Tape

$0.45

$0.345

$0.323

$0.244

Reel

$0.201

View

Min.: 1
Mult.: 1

Reel: 3,000

Resettable Fuses - PPTC 60V .75A-HD 40A MAX

MF-R075-2
Bourns
1: $0.411
11,646In Stock

Mfr. Part No.
MF-R075-2

Mouser Part No
652-MF-R075-2

Bourns

Resettable Fuses - PPTC 60V .75A-HD 40A MAX

Learn More

Datasheet

11,646In Stock

Cut Tape

$0.411

$0.372

$0.309

$0.285

Reel

$0.191

View

Min.: 1
Mult.: 1

Reel: 3,000

Resettable Fuses - PPTC 60V .145A-HD 3A MAX

MF-RX014/250-0
Bourns
1: $0.65
11,522In Stock

Mfr. Part No.
MF-RX014/250-0

Mouser Part No
652-MF-RX014/250-0

Bourns

Resettable Fuses - PPTC 60V .145A-HD 3A MAX

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Datasheet

11,522In Stock

$0.65

$0.558

$0.419

$0.398

View

Min.: 1
Mult.: 1

Resettable Fuses - PPTC 6V 3.0A-HD 100A MAX

MF-SM300-2
Bourns
1: $0.52
9,145In Stock

Mfr. Part No.
MF-SM300-2

Mouser Part No
652-MF-SM300-2

Bourns

Resettable Fuses - PPTC 6V 3.0A-HD 100A MAX

Learn More

Datasheet

Product Comments

9,145In Stock

Cut Tape

$0.52

$0.394

$0.37

$0.279

View

Reel

$0.179

MouseReel Available

Min.: 1
Mult.: 1

Reel: 4,000

Varistors PV 130V 10%

PV130K3225R2
Bourns
1: $0.58
6,531In Stock

Mfr. Part No.
PV130K3225R2

Mouser Part No
652-PV130K3225R2

Bourns

Varistors PV 130V 10%

Learn More

Datasheet

6,531In Stock

Cut Tape

$0.58

$0.364

$0.317

$0.294

Reel

$0.264

View

MouseReel Available

Min.: 1
Mult.: 1

Reel: 1,500

Thermal Cut-offs 77C Reinforced Cover SMD HC TCO

SC77AAA
Bourns
1: $1.30
3,939In Stock

Mfr. Part No.
SC77AAA

Mouser Part No
652-SC77AAA

Bourns

Thermal Cut-offs 77C Reinforced Cover SMD HC TCO

Learn More

Datasheet

3,939In Stock

Cut Tape

$1.30

$1.20

$0.99

$0.585

Reel

$0.585

MouseReel Available

Min.: 1
Mult.: 1

Reel: 5,000

Surface Mount Fuses 0.75A Fast Acting 0402 SinglFuse

SF-0402F075-2
Bourns
1: $0.77
16,820In Stock

Mfr. Part No.
SF-0402F075-2

Mouser Part No
652-SF-0402F075-2

Bourns

Surface Mount Fuses 0.75A Fast Acting 0402 SinglFuse

Learn More

Datasheet

16,820In Stock

Cut Tape

$0.77

$0.712

$0.591

$0.541

View

Reel

$0.276

MouseReel Available

Min.: 1
Mult.: 1

Reel: 10,000

Surface Mount Fuses 1.5A Fast Acting 0402 SinglFuse

SF-0402F150-2
Bourns
1: $0.65
18,685In Stock

Mfr. Part No.
SF-0402F150-2

Mouser Part No
652-SF-0402F150-2

Bourns

Surface Mount Fuses 1.5A Fast Acting 0402 SinglFuse

Learn More

Datasheet

18,685In Stock

Cut Tape

$0.65

$0.541

$0.456

$0.379

View

Reel

$0.223

MouseReel Available

Min.: 1
Mult.: 1

Reel: 10,000

Surface Mount Fuses 3A Fast Acting 0402 SinglFuse

SF-0402F300-2
Bourns
1: $0.54
15,111In Stock

Mfr. Part No.
SF-0402F300-2

Mouser Part No
652-SF-0402F300-2

Bourns

Surface Mount Fuses 3A Fast Acting 0402 SinglFuse

Learn More

Datasheet

15,111In Stock

Cut Tape

$0.54

$0.506

$0.451

$0.39

View

Reel

$0.256

MouseReel Available

Min.: 1
Mult.: 1

Reel: 10,000

Surface Mount Fuses 1.5A 63V FAST ACTING

SF-1206FP150-2
Bourns
1: $0.65
31,565In Stock

Mfr. Part No.
SF-1206FP150-2

Mouser Part No
652-SF-1206FP150-2

Bourns

Surface Mount Fuses 1.5A 63V FAST ACTING

Learn More

Datasheet

31,565In Stock

Cut Tape

$0.65

$0.541

$0.456

$0.379

$0.345

Reel

$0.333

MouseReel Available

Min.: 1
Mult.: 1

Reel: 5,000

Varistors ZV 20V 10%

ZV20K1210401NIR1HT
Bourns
1: $0.35
15,558In Stock

Mfr. Part No.
ZV20K1210401NIR1HT

Mouser Part No
652-ZV20K1210401NIRH

Bourns

Varistors ZV 20V 10%

Learn More

Datasheet

15,558In Stock

Cut Tape

$0.35

$0.214

$0.184

$0.17

Reel

$0.147

View

MouseReel Available

Min.: 1
Mult.: 1

Reel: 2,500

Circuit Protection Devices

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Circuit Protection Devices

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