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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 (8,022)

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Part #

ESD Protection Diodes / TVS Diodes TVS 7V/12V AEC-Q101

CDSOT23-SM712-Q
Bourns
1: $1.42
7,546In Stock
24,000On Order
New Product

Mfr. Part No.
CDSOT23-SM712-Q

Mouser Part No
652-CDSOT23-SM712-Q

New Product

Bourns

ESD Protection Diodes / TVS Diodes TVS 7V/12V AEC-Q101

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Datasheet

7,546In Stock

24,000On Order

Cut Tape

$1.42

$0.892

$0.591

$0.463

Reel

$0.354

View

Min.: 1
Mult.: 1

: 3,000

Resettable Fuses - PPTC 2920 Resettable SMD PPTC 0.35A/72V

MF-LSMF035/72X-2
Bourns
1: $1.00
3,196In Stock
New Product

Mfr. Part No.
MF-LSMF035/72X-2

Mouser Part No
652-MF-LSMF035/72X-2

New Product

Bourns

Resettable Fuses - PPTC 2920 Resettable SMD PPTC 0.35A/72V

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Datasheet

3,196In Stock

Cut Tape

$1.00

$0.757

$0.573

$0.555

View

Reel

$0.342

Min.: 1
Mult.: 1

: 4,000

Resettable Fuses - PPTC 2920 Resettable SMD PPTC 0.5A/72V

MF-LSMF050/72X-2
Bourns
1: $1.00
3,134In Stock
New Product

Mfr. Part No.
MF-LSMF050/72X-2

Mouser Part No
652-MF-LSMF050/72X-2

New Product

Bourns

Resettable Fuses - PPTC 2920 Resettable SMD PPTC 0.5A/72V

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Datasheet

3,134In Stock

Cut Tape

$1.00

$0.757

$0.573

$0.555

View

Reel

$0.342

Min.: 1
Mult.: 1

: 4,000

Resettable Fuses - PPTC 2920 Resettable SMD PPTC 2.0A/33V

MF-LSMF200/33X-2
Bourns
1: $1.22
3,047In Stock
New Product

Mfr. Part No.
MF-LSMF200/33X-2

Mouser Part No
652-MF-LSMF200/33X-2

New Product

Bourns

Resettable Fuses - PPTC 2920 Resettable SMD PPTC 2.0A/33V

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Datasheet

3,047In Stock

Cut Tape

$1.22

$0.909

$0.682

$0.667

View

Reel

$0.407

Min.: 1
Mult.: 1

: 4,000

Resettable Fuses - PPTC 2920 Resettable SMD PPTC 0.75A/72V

MF-LSMF075/72X-2
Bourns
1: $1.01
3,199In Stock
New Product

Mfr. Part No.
MF-LSMF075/72X-2

Mouser Part No
652-MF-LSMF075/72X-2

New Product

Bourns

Resettable Fuses - PPTC 2920 Resettable SMD PPTC 0.75A/72V

Learn More

Datasheet

3,199In Stock

Cut Tape

$1.01

$0.758

$0.574

$0.556

View

Reel

$0.342

Min.: 1
Mult.: 1

: 4,000

ESD Protection Diodes / TVS Diodes 1KA high current bidirectional TVS diodes

PTVS1-026C-H
Bourns
1: $4.37
10,408In Stock

Mfr. Part No.
PTVS1-026C-H

Mouser Part No
652-PTVS1-026C-H

Bourns

ESD Protection Diodes / TVS Diodes 1KA high current bidirectional TVS diodes

Learn More

Datasheet

10,408In Stock

Cut Tape

$4.37

$2.95

$2.61

$2.53

$2.38

Reel

$2.28

MouseReel Available

Min.: 1
Mult.: 1

: 2,500

ESD Protection Diodes / TVS Diodes 1KA high current bidirectional TVS diodes

PTVS1-086C-H
Bourns
1: $5.42
9,845In Stock

Mfr. Part No.
PTVS1-086C-H

Mouser Part No
652-PTVS1-086C-H

Bourns

ESD Protection Diodes / TVS Diodes 1KA high current bidirectional TVS diodes

Learn More

Datasheet

9,845In Stock

Cut Tape

$5.42

$3.82

$3.29

$3.22

Reel

$2.90

View

MouseReel Available

Min.: 1
Mult.: 1

: 2,500

ESD Protection Diodes / TVS Diodes 1KA high current bidirectional TVS diodes

PTVS1-029C-H
Bourns
1: $4.37
8,609In Stock

Mfr. Part No.
PTVS1-029C-H

Mouser Part No
652-PTVS1-029C-H

Bourns

ESD Protection Diodes / TVS Diodes 1KA high current bidirectional TVS diodes

Learn More

Datasheet

8,609In Stock

Cut Tape

$4.37

$3.04

$2.61

$2.53

Reel

$2.33

View

MouseReel Available

Min.: 1
Mult.: 1

: 2,500

Fuse Holder CFB1 FUSE BLOCK 150A FUSE

CFB1-150
Bourns
1: $62.85
33In Stock
New Product

Mfr. Part No.
CFB1-150

Mouser Part No
652-CFB1-150

New Product

Bourns

Fuse Holder CFB1 FUSE BLOCK 150A FUSE

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Datasheet

33In Stock

$62.85

$56.75

$43.89

$42.47

View

Min.: 1
Mult.: 1

Thermal Cut-offs TCO, High Current, SMD, 90C, Self Hold AEC-Q200

SD90ABB
Bourns
1: $2.35
15,400In Stock

Mfr. Part No.
SD90ABB

Mouser Part No
652-SD90ABB

Bourns

Thermal Cut-offs TCO, High Current, SMD, 90C, Self Hold AEC-Q200

Learn More

Datasheet

15,400In Stock

Cut Tape

$2.35

$2.17

$1.80

$1.60

View

Reel

$1.09

MouseReel Available

Min.: 1
Mult.: 1

: 4,000

Fuse Holder CFB1 FUSE BLOCK, NO FUSE

CFB1-NF
Bourns
1: $51.93
22In Stock
New Product

Mfr. Part No.
CFB1-NF

Mouser Part No
652-CFB1-NF

New Product

Bourns

Fuse Holder CFB1 FUSE BLOCK, NO FUSE

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Datasheet

22In Stock

$51.93

$43.07

$39.73

$32.21

Min.: 1
Mult.: 1

Gas Discharge Tubes - GDTs / Gas Plasma Arrestors Next-Generation GDT 5mm 350V

GDT35-35-S1-RP
Bourns
1: $1.78
1,573In Stock

Mfr. Part No.
GDT35-35-S1-RP

Mouser Part No
652-GDT35-35-S1-RP

Bourns

Gas Discharge Tubes - GDTs / Gas Plasma Arrestors Next-Generation GDT 5mm 350V

Learn More

Datasheet

1,573In Stock

Cut Tape

$1.78

$1.64

$1.36

$1.26

Reel

$0.928

View

MouseReel Available

Min.: 1
Mult.: 1

: 1,000

Gas Discharge Tubes - GDTs / Gas Plasma Arrestors Next-Generation GDT 5mm 420V

GDT35-42-S1-RP
Bourns
1: $1.78
1,965In Stock

Mfr. Part No.
GDT35-42-S1-RP

Mouser Part No
652-GDT35-42-S1-RP

Bourns

Gas Discharge Tubes - GDTs / Gas Plasma Arrestors Next-Generation GDT 5mm 420V

Learn More

Datasheet

1,965In Stock

Cut Tape

$1.78

$1.64

$1.36

$1.26

Reel

$0.928

View

MouseReel Available

Min.: 1
Mult.: 1

: 1,000

Gas Discharge Tubes - GDTs / Gas Plasma Arrestors Next-Generation GDT 5mm 470V

GDT35-47-S1-RP
Bourns
1: $1.78
1,762In Stock

Mfr. Part No.
GDT35-47-S1-RP

Mouser Part No
652-GDT35-47-S1-RP

Bourns

Gas Discharge Tubes - GDTs / Gas Plasma Arrestors Next-Generation GDT 5mm 470V

Learn More

Datasheet

1,762In Stock

Cut Tape

$1.78

$1.64

$1.36

$1.26

Reel

$0.943

View

MouseReel Available

Min.: 1
Mult.: 1

: 1,000

Gas Discharge Tubes - GDTs / Gas Plasma Arrestors Next-Generation GDT 5mm 470V, REEL

GDT25-47-S1-RP
Bourns
1: $1.10
2,812In Stock

Mfr. Part No.
GDT25-47-S1-RP

Mouser Part No
652-GDT25-47-S1-RP

Bourns

Gas Discharge Tubes - GDTs / Gas Plasma Arrestors Next-Generation GDT 5mm 470V, REEL

Learn More

Datasheet

2,812In Stock

Cut Tape

$1.10

$1.01

$0.836

$0.772

Reel

$0.631

View

MouseReel Available

Min.: 1
Mult.: 1

: 1,500

Varistors 20mm Radial Disc MOV - Kinked Leads, T&R

MOV-20D621KKTR
Bourns
1: $1.77
4,761In Stock
6,000Expected 19/10/2026

Mfr. Part No.
MOV-20D621KKTR

Mouser Part No
652-MOV-20D621KKTR

Bourns

Varistors 20mm Radial Disc MOV - Kinked Leads, T&R

Learn More

Datasheet

4,761In Stock

6,000Expected 19/10/2026

Cut Tape

$1.77

$1.09

$0.749

Reel

$0.699

$0.618

View

MouseReel Available

Min.: 1
Mult.: 1

: 250

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

MOV-14D271KKTR
Bourns
1: $0.84
17,500In Stock

Mfr. Part No.
MOV-14D271KKTR

Mouser Part No
652-MOV-14D271KKTR

Bourns

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

Learn More

Datasheet

17,500In Stock

Cut Tape

$0.84

$0.506

$0.318

$0.279

Reel

$0.238

View

MouseReel Available

Min.: 1
Mult.: 1

: 500

Thermal Cut-offs TCO, High Current, SMD, 135C, Self Hold AEC-Q200

SDD5ABB
Bourns
1: $2.58
3,835In Stock

Mfr. Part No.
SDD5ABB

Mouser Part No
652-SDD5ABB

Bourns

Thermal Cut-offs TCO, High Current, SMD, 135C, Self Hold AEC-Q200

Datasheet

3,835In Stock

Cut Tape

$2.58

$2.33

$1.88

$1.64

View

Reel

$1.02

MouseReel Available

Min.: 1
Mult.: 1

: 4,000

Automotive Fuses POWrFuse TH 275Vac 500Vdc 30A

PF-KT1-30
Bourns
1: $34.37
282In Stock

Mfr. Part No.
PF-KT1-30

Mouser Part No
652-PF-KT1-30

Bourns

Automotive Fuses POWrFuse TH 275Vac 500Vdc 30A

Learn More

Datasheet

282In Stock

$34.37

$28.51

$18.87

$16.04

Min.: 1
Mult.: 1

Board Mount Surge Protectors 650V, 50mA Single Bidirectional TBU, AECQ

TBU-CA065-050-WH-Q
Bourns
1: $2.23
9,861In Stock

Mfr. Part No.
TBU-CA065-050-WH-Q

Mouser Part No
652-TBU-CA065-050WHQ

Bourns

Board Mount Surge Protectors 650V, 50mA Single Bidirectional TBU, AECQ

Learn More

Datasheet

9,861In Stock

Cut Tape

$2.23

$1.82

$1.16

$1.11

Reel

$1.08

View

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

Industrial & Electrical Fuses POWrFuse TH 600Vac 125Vdc 63A

PF-GT3-63
Bourns
1: $32.73
274In Stock

Mfr. Part No.
PF-GT3-63

Mouser Part No
652-PF-GT3-63

Bourns

Industrial & Electrical Fuses POWrFuse TH 600Vac 125Vdc 63A

Learn More

Datasheet

274In Stock

$32.73

$25.25

$24.47

$22.70

View

Min.: 1
Mult.: 1

Automotive Fuses POWrFuse TH 275Vac 500Vdc 50A

PF-KT1-50
Bourns
1: $33.67
300In Stock

Mfr. Part No.
PF-KT1-50

Mouser Part No
652-PF-KT1-50

Bourns

Automotive Fuses POWrFuse TH 275Vac 500Vdc 50A

Learn More

Datasheet

300In Stock

$33.67

$29.42

$23.26

$20.66

Min.: 1
Mult.: 1

Surface Mount Fuses 10A 250V FAST ACTING

SF-3812F1000T-2
Bourns
1: $3.51
10,716In Stock

Mfr. Part No.
SF-3812F1000T-2

Mouser Part No
652-SF-3812F1000T-2

Bourns

Surface Mount Fuses 10A 250V FAST ACTING

Learn More

Datasheet

10,716In Stock

Cut Tape

$3.51

$2.95

$2.32

$2.06

Reel

$1.45

View

MouseReel Available

Min.: 1
Mult.: 1

: 2,500

Automotive Fuses POWrFuse BD 275Vac 500Vdc 50A

PF-KB1-50
Bourns
1: $34.87
158In Stock

Mfr. Part No.
PF-KB1-50

Mouser Part No
652-PF-KB1-50

Bourns

Automotive Fuses POWrFuse BD 275Vac 500Vdc 50A

Learn More

Datasheet

158In Stock

$34.87

$28.93

$22.70

$20.91

$19.93

Min.: 1
Mult.: 1

ESD Protection Diodes / TVS Diodes SO-8 2.8V 8DIODE Low Capacitance

CDNBS08-SLVU2.8-8
Bourns
1: $3.74
9,442In Stock

Mfr. Part No.
CDNBS08-SLVU2.8-8

Mouser Part No
652-CDNBS08SLVU2.8-8

Bourns

ESD Protection Diodes / TVS Diodes SO-8 2.8V 8DIODE Low Capacitance

Learn More

Datasheet

9,442In Stock

Cut Tape

$3.74

$2.72

$1.96

$1.77

View

Reel

$1.50

MouseReel Available

Min.: 1
Mult.: 1

: 2,500

Circuit Protection Devices

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Circuit Protection Devices

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