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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 #

ESD Protection Diodes / TVS Diodes 5.0SMDJ - CA 58V

5.0SMDJ58CA-Q
Bourns
1: $1.97
6,000In Stock

Mfr. Part No.
5.0SMDJ58CA-Q

Mouser Part No
652-5.0SMDJ58CA-Q

Bourns

ESD Protection Diodes / TVS Diodes 5.0SMDJ - CA 58V

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Datasheet

6,000In Stock

Cut Tape

$1.97

$1.64

$1.26

$1.05

$0.934

Reel

$0.862

MouseReel Available

Min.: 1
Mult.: 1

Reel: 3,000

Varistors 5.5VDC 10% 0201 33pF

CG0201MLA-5.5MH
Bourns
1: $0.16
60,930In Stock

Mfr. Part No.
CG0201MLA-5.5MH

Mouser Part No
652-CG0201MLA-5.5MH

Bourns

Varistors 5.5VDC 10% 0201 33pF

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Datasheet

60,930In Stock

Cut Tape

$0.16

$0.097

$0.083

$0.076

View

Reel

$0.063

MouseReel Available

Min.: 1
Mult.: 1

Reel: 15,000

Varistors Chip Guard 0603 12 Volt AEC-Q200

CGA0603MLC-12E
Bourns
1: $0.33
11,303In Stock

Mfr. Part No.
CGA0603MLC-12E

Mouser Part No
652-CGA0603MLC-12E

Bourns

Varistors Chip Guard 0603 12 Volt AEC-Q200

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Datasheet

11,303In Stock

Cut Tape

$0.33

$0.195

$0.172

$0.159

Reel

$0.133

View

MouseReel Available

Min.: 1
Mult.: 1

Reel: 5,000

Resettable Fuses - PPTC RESETTABLE FUSE 230VOLT 35OHM

CMF-RL35-10-0
Bourns
1: $0.95
11,093In Stock

Mfr. Part No.
CMF-RL35-10-0

Mouser Part No
652-CMF-RL35-10-0

Bourns

Resettable Fuses - PPTC RESETTABLE FUSE 230VOLT 35OHM

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Datasheet

11,093In Stock

$0.95

$0.722

$0.677

$0.512

View

Min.: 1
Mult.: 1

Varistors CV 275 K 10 B L1

CV275K10BL1
Bourns
1: $1.07
14,414In Stock

Mfr. Part No.
CV275K10BL1

Mouser Part No
652-CV275K10BL1

Bourns

Varistors CV 275 K 10 B L1

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Datasheet

14,414In Stock

$1.07

$0.648

$0.414

$0.366

View

Min.: 1
Mult.: 1

Varistors CV 300 K 14 B L1

CV300K14BL1
Bourns
1: $1.31
6,886In Stock

Mfr. Part No.
CV300K14BL1

Mouser Part No
652-CV300K14BL1

Bourns

Varistors CV 300 K 14 B L1

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Datasheet

6,886In Stock

$1.31

$0.737

$0.509

$0.466

View

Min.: 1
Mult.: 1

Varistors CV+ 275 K 7 B L1

CVQ275K7BL1
Bourns
1: $0.80
16,689In Stock

Mfr. Part No.
CVQ275K7BL1

Mouser Part No
652-CVQ275K7BL1

Bourns

Varistors CV+ 275 K 7 B L1

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Datasheet

16,689In Stock

$0.80

$0.441

$0.302

$0.266

View

Min.: 1
Mult.: 1

Varistors DV SERIES 25V

DV25K3225R2
Bourns
1: $1.17
6,348In Stock

Mfr. Part No.
DV25K3225R2

Mouser Part No
652-DV25K3225R2

Bourns

Varistors DV SERIES 25V

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Datasheet

6,348In Stock

Cut Tape

$1.17

$0.844

$0.764

$0.676

Reel

$0.565

View

MouseReel Available

Min.: 1
Mult.: 1

Reel: 2,000

Varistors 130 VAC 70J 360V-CL 6KA-PK

GMOV-14D131K
Bourns
1: $1.54
3,482In Stock

Mfr. Part No.
GMOV-14D131K

Mouser Part No
652-GMOV-14D131K

Bourns

Varistors 130 VAC 70J 360V-CL 6KA-PK

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Datasheet

3,482In Stock

$1.54

$1.43

$1.14

$1.08

View

Min.: 1
Mult.: 1

Resettable Fuses - PPTC 6V 200MA-HD 50A MAX

MF-ASML020/6-2
Bourns
1: $0.49
21,509In Stock

Mfr. Part No.
MF-ASML020/6-2

Mouser Part No
652-MF-ASML020/6-2

Bourns

Resettable Fuses - PPTC 6V 200MA-HD 50A MAX

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Datasheet

21,509In Stock

Cut Tape

$0.49

$0.371

$0.348

$0.267

$0.263

Reel

$0.263

MouseReel Available

Min.: 1
Mult.: 1

Reel: 10,000

Resettable Fuses - PPTC 12V 1.1A-HD 50A 0805

MF-PSML110/12-2
Bourns
1: $1.11
8,272In Stock

Mfr. Part No.
MF-PSML110/12-2

Mouser Part No
652-MF-PSML110/12-2

Bourns

Resettable Fuses - PPTC 12V 1.1A-HD 50A 0805

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Datasheet

8,272In Stock

Cut Tape

$1.11

$1.03

$0.848

$0.783

View

Reel

$0.494

Min.: 1
Mult.: 1

Reel: 4,500

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

MF-PSML300/6-2
Bourns
1: $1.16
2,934In Stock

Mfr. Part No.
MF-PSML300/6-2

Mouser Part No
652-MF-PSML300/6-2

Bourns

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

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Datasheet

2,934In Stock

Cut Tape

$1.16

$1.08

$0.89

$0.82

Reel

$0.549

View

MouseReel Available

Min.: 1
Mult.: 1

Reel: 3,000

Varistors 500pF 100volts 10%

MOV-10D101KTR
Bourns
1: $0.211
69,805In Stock

Mfr. Part No.
MOV-10D101KTR

Mouser Part No
652-MOV-10D101KTR

Bourns

Varistors 500pF 100volts 10%

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Datasheet

69,805In Stock

Cut Tape

$0.211

$0.141

$0.121

$0.11

Reel

$0.099

View

Min.: 1
Mult.: 1

Reel: 1,000

Varistors 18volts 20mm

MOV-20D180KTR
Bourns
1: $0.67
5,710In Stock

Mfr. Part No.
MOV-20D180KTR

Mouser Part No
652-MOV-20D180KTR

Bourns

Varistors 18volts 20mm

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Datasheet

5,710In Stock

Cut Tape

$0.67

$0.419

$0.378

Reel

$0.354

$0.349

MouseReel Available

Min.: 1
Mult.: 1

Reel: 250

Varistors 560volts 20mm

MOV-20D561KTR
Bourns
1: $0.63
4,488In Stock
6,000Expected 2026/06/01

Mfr. Part No.
MOV-20D561KTR

Mouser Part No
652-MOV-20D561KTR

Bourns

Varistors 560volts 20mm

Learn More

Datasheet

4,488In Stock

6,000Expected 2026/06/01

Cut Tape

$0.63

$0.434

$0.392

Reel

$0.356

MouseReel Available

Min.: 1
Mult.: 1

Reel: 250

ESD Protection Diodes / TVS Diodes 10V 400W BiDir

P4SMA10CA
Bourns
1: $0.10
23,206In Stock

Mfr. Part No.
P4SMA10CA

Mouser Part No
652-P4SMA10CA

Bourns

ESD Protection Diodes / TVS Diodes 10V 400W BiDir

Learn More

Datasheet

23,206In Stock

Cut Tape

$0.10

$0.088

Reel

$0.087

MouseReel Available

Min.: 1
Mult.: 1

Reel: 5,000

ESD Protection Diodes / TVS Diodes 12V 400W UniDir

P4SMA12A
Bourns
1: $0.32
17,317In Stock

Mfr. Part No.
P4SMA12A

Mouser Part No
652-P4SMA12A

Bourns

ESD Protection Diodes / TVS Diodes 12V 400W UniDir

Learn More

Datasheet

17,317In Stock

Cut Tape

$0.32

$0.09

$0.087

$0.083

View

Reel

$0.076

MouseReel Available

Min.: 1
Mult.: 1

Reel: 5,000

ESD Protection Diodes / TVS Diodes DIO TVS VBR 30V 400W BIIDIR SMA AECQ

P4SMA30CA-Q
Bourns
1: $0.44
20,263In Stock

Mfr. Part No.
P4SMA30CA-Q

Mouser Part No
652-P4SMA30CA-Q

Bourns

ESD Protection Diodes / TVS Diodes DIO TVS VBR 30V 400W BIIDIR SMA AECQ

Learn More

Datasheet

20,263In Stock

Cut Tape

$0.44

$0.254

$0.194

$0.157

Reel

$0.117

View

MouseReel Available

Min.: 1
Mult.: 1

Reel: 5,000

ESD Protection Diodes / TVS Diodes 400V 600W UniDir

P6SMB400A
Bourns
1: $0.361
14,656In Stock

Mfr. Part No.
P6SMB400A

Mouser Part No
652-P6SMB400A

Bourns

ESD Protection Diodes / TVS Diodes 400V 600W UniDir

Learn More

Datasheet

14,656In Stock

Cut Tape

$0.361

$0.292

$0.223

$0.178

$0.164

Reel

$0.159

MouseReel Available

Min.: 1
Mult.: 1

Reel: 3,000

ESD Protection Diodes / TVS Diodes 91V 600W UniDir

P6SMB91A
Bourns
1: $0.361
16,918In Stock

Mfr. Part No.
P6SMB91A

Mouser Part No
652-P6SMB91A

Bourns

ESD Protection Diodes / TVS Diodes 91V 600W UniDir

Learn More

Datasheet

16,918In Stock

Cut Tape

$0.361

$0.249

$0.167

$0.131

$0.098

Reel

$0.08

MouseReel Available

Min.: 1
Mult.: 1

Reel: 3,000

Surface Mount Fuses 4A 35V FAST ACTING

SF-0402FP400F-2
Bourns
1: $0.48
8,936In Stock

Mfr. Part No.
SF-0402FP400F-2

Mouser Part No
652-SF-0402FP400F-2

Bourns

Surface Mount Fuses 4A 35V FAST ACTING

Learn More

Datasheet

8,936In Stock

Cut Tape

$0.48

$0.43

$0.404

$0.297

View

Reel

$0.247

MouseReel Available

Min.: 1
Mult.: 1

Reel: 20,000

Surface Mount Fuses 4A Slow Blow 0402 SinglFuse

SF-0402S400M-2
Bourns
1: $0.74
11,398In Stock

Mfr. Part No.
SF-0402S400M-2

Mouser Part No
652-SF-0402S400M-2

Bourns

Surface Mount Fuses 4A Slow Blow 0402 SinglFuse

Learn More

Datasheet

11,398In Stock

Cut Tape

$0.74

$0.62

$0.522

$0.434

View

Reel

$0.272

MouseReel Available

Min.: 1
Mult.: 1

Reel: 10,000

Surface Mount Fuses 3A High-inrush 0603 SinglFuse

SF-0603HI300F-2
Bourns
1: $0.74
5,243In Stock

Mfr. Part No.
SF-0603HI300F-2

Mouser Part No
652-SF-0603HI300F-2

Bourns

Surface Mount Fuses 3A High-inrush 0603 SinglFuse

Learn More

Datasheet

5,243In Stock

Cut Tape

$0.74

$0.62

$0.522

$0.434

View

Reel

$0.272

MouseReel Available

Min.: 1
Mult.: 1

Reel: 8,000

Surface Mount Fuses 0603 High-Inrush Multilayer 1.5A Auto

SF-0603HIA150M-2
Bourns
1: $0.92
13,238In Stock

Mfr. Part No.
SF-0603HIA150M-2

Mouser Part No
652-SF-0603HIA150M-2

Bourns

Surface Mount Fuses 0603 High-Inrush Multilayer 1.5A Auto

Learn More

Datasheet

13,238In Stock

Cut Tape

$0.92

$0.726

$0.60

$0.534

View

Reel

$0.336

MouseReel Available

Min.: 1
Mult.: 1

Reel: 4,000

Surface Mount Fuses 2.5A 32V TIME DELAY

SF-0603SP250M-2
Bourns
1: $0.57
8,547In Stock

Mfr. Part No.
SF-0603SP250M-2

Mouser Part No
652-SF-0603SP250M-2

Bourns

Surface Mount Fuses 2.5A 32V TIME DELAY

Learn More

Datasheet

8,547In Stock

Cut Tape

$0.57

$0.476

$0.414

$0.386

View

Reel

$0.271

MouseReel Available

Min.: 1
Mult.: 1

Reel: 4,000

Circuit Protection Devices

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Circuit Protection Devices

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