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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 #

Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 420volts

2051-42-SM-RPLF
Bourns
1: $0.911
4,623In Stock

Mfr. Part No.
2051-42-SM-RPLF

Mouser Part No
652-2051-42-SM-RPLF

Bourns

Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 420volts

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Datasheet

4,623In Stock

Cut Tape

$0.911

$0.855

$0.779

$0.707

Reel

$0.464

View

MouseReel Available

Min.: 1
Mult.: 1

: 2,500

ESD Protection Diodes / TVS Diodes DIO TVS VWM 54V 5kW BIDIR SMC AECQ

5.0SMDJ54CA-QH
Bourns
1: $5.20
1,398In Stock

Mfr. Part No.
5.0SMDJ54CA-QH

Mouser Part No
652-5.0SMDJ54CA-QH

Bourns

ESD Protection Diodes / TVS Diodes DIO TVS VWM 54V 5kW BIDIR SMC AECQ

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Datasheet

1,398In Stock

Cut Tape

$5.20

$3.40

$2.65

Reel

$2.23

$1.89

View

MouseReel Available

Min.: 1
Mult.: 1

: 500

Varistors CHIP GUARD

CG1206MLC-12E
Bourns
1: $1.01
8,841In Stock

Mfr. Part No.
CG1206MLC-12E

Mouser Part No
652-CG1206MLC-12E

Bourns

Varistors CHIP GUARD

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Datasheet

8,841In Stock

Cut Tape

$1.01

$0.645

$0.564

$0.526

Reel

$0.431

View

MouseReel Available

Min.: 1
Mult.: 1

: 5,000

Resettable Fuses - PPTC 24V 1.8A-HD 100A MAX

MF-LS180
Bourns
1: $0.87
13,397In Stock

Mfr. Part No.
MF-LS180

Mouser Part No
652-MF-LS180

Bourns

Resettable Fuses - PPTC 24V 1.8A-HD 100A MAX

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Datasheet

13,397In Stock

$0.87

$0.792

$0.657

$0.607

View

Min.: 1
Mult.: 1

Resettable Fuses - PPTC 6V 3.0A-HD 50A SMD

MF-NSML300/6-2
Bourns
1: $1.10
5,737In Stock

Mfr. Part No.
MF-NSML300/6-2

Mouser Part No
652-MF-NSML300/6-2

Bourns

Resettable Fuses - PPTC 6V 3.0A-HD 50A SMD

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Datasheet

5,737In Stock

Cut Tape

$1.10

$0.845

$0.792

$0.598

Reel

$0.54

View

MouseReel Available

Min.: 1
Mult.: 1

: 3,500

Resettable Fuses - PPTC 12V 4.0A-HD 50A 1206

MF-NSML400/12-2
Bourns
1: $0.952
16,946In Stock

Mfr. Part No.
MF-NSML400/12-2

Mouser Part No
652-MF-NSML400/12-2

Bourns

Resettable Fuses - PPTC 12V 4.0A-HD 50A 1206

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Datasheet

16,946In Stock

Cut Tape

$0.952

$0.816

$0.724

$0.654

View

Reel

$0.564

MouseReel Available

Min.: 1
Mult.: 1

: 3,500

Resettable Fuses - PPTC 12V 1.75A-HD 50A 1210

MF-USML175/12-2
Bourns
1: $0.762
10,327In Stock

Mfr. Part No.
MF-USML175/12-2

Mouser Part No
652-MF-USML175/12-2

Bourns

Resettable Fuses - PPTC 12V 1.75A-HD 50A 1210

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Datasheet

10,327In Stock

Cut Tape

$0.762

$0.67

$0.639

$0.609

View

Reel

$0.472

Min.: 1
Mult.: 1

: 5,000

Resettable Fuses - PPTC 12V 2.0A-HD 50A 1210

MF-USML200/12-2
Bourns
1: $0.966
5,097In Stock

Mfr. Part No.
MF-USML200/12-2

Mouser Part No
652-MF-USML200/12-2

Bourns

Resettable Fuses - PPTC 12V 2.0A-HD 50A 1210

Learn More

Datasheet

5,097In Stock

Cut Tape

$0.966

$0.849

$0.808

$0.642

View

Reel

$0.442

MouseReel Available

Min.: 1
Mult.: 1

: 5,000

Varistors 1100pF 47volts 10%

MOV-07D470K
Bourns
1: $0.258
43,442In Stock

Mfr. Part No.
MOV-07D470K

Mouser Part No
652-MOV-07D470K

Bourns

Varistors 1100pF 47volts 10%

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Datasheet

43,442In Stock

$0.258

$0.151

$0.131

$0.118

View

Min.: 1
Mult.: 1

Varistors 39volts 14mm

MOV-14D390KTR
Bourns
1: $0.612
10,427In Stock

Mfr. Part No.
MOV-14D390KTR

Mouser Part No
652-MOV-14D390KTR

Bourns

Varistors 39volts 14mm

Learn More

Datasheet

10,427In Stock

Cut Tape

$0.612

$0.378

$0.328

$0.303

Reel

$0.287

View

Min.: 1
Mult.: 1

: 500

Varistors 1100volts 20mm

MOV-20D112K
Bourns
1: $1.80
3,164In Stock

Mfr. Part No.
MOV-20D112K

Mouser Part No
652-MOV-20D112K

Bourns

Varistors 1100volts 20mm

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Datasheet

3,164In Stock

$1.80

$1.30

$1.18

$0.99

View

Min.: 1
Mult.: 1

Varistors 390volts 20mm

MOV-20D391KTR
Bourns
1: $0.707
4,802In Stock

Mfr. Part No.
MOV-20D391KTR

Mouser Part No
652-MOV-20D391KTR

Bourns

Varistors 390volts 20mm

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Datasheet

4,802In Stock

Cut Tape

$0.707

$0.511

$0.477

Reel

$0.475

MouseReel Available

Min.: 1
Mult.: 1

: 250

Varistors 750volts 20mm

MOV-20D751K
Bourns
1: $2.77
5,154In Stock

Mfr. Part No.
MOV-20D751K

Mouser Part No
652-MOV-20D751K

Bourns

Varistors 750volts 20mm

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Datasheet

5,154In Stock

$2.77

$1.73

$1.56

$1.28

View

Min.: 1
Mult.: 1

ESD Protection Diodes / TVS Diodes 440V 400W UniDir

P4SMA440A
Bourns
1: $0.83
13,119In Stock

Mfr. Part No.
P4SMA440A

Mouser Part No
652-P4SMA440A

Bourns

ESD Protection Diodes / TVS Diodes 440V 400W UniDir

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Datasheet

13,119In Stock

Cut Tape

$0.83

$0.393

$0.322

$0.261

Reel

$0.169

View

MouseReel Available

Min.: 1
Mult.: 1

: 5,000

ESD Protection Diodes / TVS Diodes 540V 400W BiDir

P4SMA540CA
Bourns
1: $1.20
8,428In Stock

Mfr. Part No.
P4SMA540CA

Mouser Part No
652-P4SMA540CA

Bourns

ESD Protection Diodes / TVS Diodes 540V 400W BiDir

Learn More

Datasheet

8,428In Stock

Cut Tape

$1.20

$0.743

$0.481

$0.369

Reel

$0.257

View

MouseReel Available

Min.: 1
Mult.: 1

: 5,000

ESD Protection Diodes / TVS Diodes 120V 600W BiDir

P6SMB120CA
Bourns
1: $0.83
14,405In Stock

Mfr. Part No.
P6SMB120CA

Mouser Part No
652-P6SMB120CA

Bourns

ESD Protection Diodes / TVS Diodes 120V 600W BiDir

Learn More

Datasheet

14,405In Stock

Cut Tape

$0.83

$0.394

$0.322

$0.261

Reel

$0.159

View

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

ESD Protection Diodes / TVS Diodes 150V 600W BiDir

P6SMB150CA
Bourns
1: $1.14
11,936In Stock

Mfr. Part No.
P6SMB150CA

Mouser Part No
652-P6SMB150CA

Bourns

ESD Protection Diodes / TVS Diodes 150V 600W BiDir

Learn More

Datasheet

11,936In Stock

Cut Tape

$1.14

$0.547

$0.456

$0.348

Reel

$0.268

View

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

ESD Protection Diodes / TVS Diodes 200V 600W BiDir

P6SMB200CA
Bourns
1: $1.14
14,757In Stock

Mfr. Part No.
P6SMB200CA

Mouser Part No
652-P6SMB200CA

Bourns

ESD Protection Diodes / TVS Diodes 200V 600W BiDir

Learn More

Datasheet

14,757In Stock

Cut Tape

$1.14

$0.547

$0.456

$0.348

Reel

$0.268

View

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

ESD Protection Diodes / TVS Diodes 510V 600W UniDir

P6SMB510A
Bourns
1: $1.20
18,881In Stock

Mfr. Part No.
P6SMB510A

Mouser Part No
652-P6SMB510A

Bourns

ESD Protection Diodes / TVS Diodes 510V 600W UniDir

Learn More

Datasheet

18,881In Stock

Cut Tape

$1.20

$0.583

$0.481

$0.369

Reel

$0.284

View

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

ESD Protection Diodes / TVS Diodes 10kA 320V PTVS Diode Bidirectional

PTVS10-320C-TH
Bourns
1: $157.38
27In Stock

Mfr. Part No.
PTVS10-320C-TH

Mouser Part No
652-PTVS10-320C-TH

Bourns

ESD Protection Diodes / TVS Diodes 10kA 320V PTVS Diode Bidirectional

Learn More

Datasheet

27In Stock

$157.38

$126.44

Min.: 1
Mult.: 1

Surface Mount Fuses .375A 32V FAST ACTING

SF-0402FP0375F-2
Bourns
1: $0.857
29,567In Stock

Mfr. Part No.
SF-0402FP0375F-2

Mouser Part No
652-SF-0402FP0375F-2

Bourns

Surface Mount Fuses .375A 32V FAST ACTING

Learn More

Datasheet

29,567In Stock

Cut Tape

$0.857

$0.779

$0.647

$0.597

View

Reel

$0.385

MouseReel Available

Min.: 1
Mult.: 1

: 20,000

Surface Mount Fuses 2.5A Fast Act Prec 0603 SinglFuse

SF-0603FP250F-2
Bourns
1: $1.03
19,485In Stock

Mfr. Part No.
SF-0603FP250F-2

Mouser Part No
652-SF-0603FP250F-2

Bourns

Surface Mount Fuses 2.5A Fast Act Prec 0603 SinglFuse

Learn More

Datasheet

19,485In Stock

Cut Tape

$1.03

$0.821

$0.692

$0.608

View

Reel

$0.385

MouseReel Available

Min.: 1
Mult.: 1

: 8,000

Surface Mount Fuses 3.5A 32V FAST ACTING

SF-0603FP350M-2
Bourns
1: $1.06
18,191In Stock

Mfr. Part No.
SF-0603FP350M-2

Mouser Part No
652-SF-0603FP350M-2

Bourns

Surface Mount Fuses 3.5A 32V FAST ACTING

Learn More

Datasheet

18,191In Stock

Cut Tape

$1.06

$0.843

$0.71

$0.624

View

Reel

$0.394

MouseReel Available

Min.: 1
Mult.: 1

: 6,000

Surface Mount Fuses 0.75A High-inrush 0603 SinglFuse

SF-0603HI075F-2
Bourns
1: $1.09
18,641In Stock

Mfr. Part No.
SF-0603HI075F-2

Mouser Part No
652-SF-0603HI075F-2

Bourns

Surface Mount Fuses 0.75A High-inrush 0603 SinglFuse

Learn More

Datasheet

18,641In Stock

Cut Tape

$1.09

$0.869

$0.71

$0.643

View

Reel

$0.394

MouseReel Available

Min.: 1
Mult.: 1

: 8,000

Surface Mount Fuses 1A High-inrush 0603 SinglFuse

SF-0603HI100F-2
Bourns
1: $1.06
13,561In Stock

Mfr. Part No.
SF-0603HI100F-2

Mouser Part No
652-SF-0603HI100F-2

Bourns

Surface Mount Fuses 1A High-inrush 0603 SinglFuse

Learn More

Datasheet

13,561In Stock

Cut Tape

$1.06

$0.843

$0.71

$0.624

View

Reel

$0.394

MouseReel Available

Min.: 1
Mult.: 1

: 8,000

Circuit Protection Devices

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Circuit Protection Devices

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