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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 #

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

MF-LSMF075/72X-2
Bourns
1: $1.40
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

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Datasheet

3,199In Stock

Cut Tape

$1.40

$1.05

$0.798

$0.773

View

Reel

$0.475

Min.: 1
Mult.: 1

: 4,000

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

MF-LSMF035/72X-2
Bourns
1: $1.39
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

$1.39

$1.05

$0.796

$0.771

View

Reel

$0.475

Min.: 1
Mult.: 1

: 4,000

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

MF-LSMF050/72X-2
Bourns
1: $1.39
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

Learn More

Datasheet

3,134In Stock

Cut Tape

$1.39

$1.05

$0.796

$0.771

View

Reel

$0.475

Min.: 1
Mult.: 1

: 4,000

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

MF-LSMF200/33X-2
Bourns
1: $1.70
3,048In 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

3,048In Stock

Cut Tape

$1.70

$1.26

$0.948

$0.927

View

Reel

$0.566

Min.: 1
Mult.: 1

: 4,000

Gas Discharge Tubes - GDTs / Gas Plasma Arrestors HV GDT AECQ 6200V

SA2-A-6200-CBB-STD
Bourns
1: $6.92
998In Stock
New Product

Mfr. Part No.
SA2-A-6200-CBB-STD

Mouser Part No
652-SA2-A-6200-CBB

New Product

Bourns

Gas Discharge Tubes - GDTs / Gas Plasma Arrestors HV GDT AECQ 6200V

Datasheet

998In Stock

$6.92

$5.81

$4.52

$4.06

View

Min.: 1
Mult.: 1

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

PTVS1-086C-H
Bourns
1: $7.53
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

$7.53

$5.31

$4.59

$4.48

Reel

$4.18

Quote

MouseReel Available

Min.: 1
Mult.: 1

: 2,500

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

PTVS1-029C-H
Bourns
1: $6.07
8,589In 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

8,589In Stock

Cut Tape

$6.07

$4.23

$3.63

$3.52

$3.21

Reel

$3.17

MouseReel Available

Min.: 1
Mult.: 1

: 2,500

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

PTVS1-026C-H
Bourns
1: $6.07
10,418In 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

10,418In Stock

Cut Tape

$6.07

$4.23

$3.63

$3.52

Reel

$3.17

View

MouseReel Available

Min.: 1
Mult.: 1

: 2,500

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

PTVS1-058C-H
Bourns
1: $6.39
10,381In Stock

Mfr. Part No.
PTVS1-058C-H

Mouser Part No
652-PTVS1-058C-H

Bourns

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

Learn More

Datasheet

10,381In Stock

Cut Tape

$6.39

$4.48

$3.84

$3.73

Reel

$3.18

View

MouseReel Available

Min.: 1
Mult.: 1

: 2,500

Fuse Holder CFB1 FUSE BLOCK, NO FUSE

CFB1-NF
Bourns
1: $72.18
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

$72.18

$59.87

$55.22

$44.77

Min.: 1
Mult.: 1

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

SD90ABB
Bourns
1: $3.27
15,399In 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

15,399In Stock

Cut Tape

$3.27

$3.02

$3.00

$2.50

View

Reel

$1.52

MouseReel Available

Min.: 1
Mult.: 1

: 4,000

Fuse Holder CFB1 FUSE BLOCK 150A FUSE

CFB1-150
Bourns
1: $87.36
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

$87.36

$78.88

$61.01

$59.03

View

Min.: 1
Mult.: 1

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

GDT35-35-S1-RP
Bourns
1: $2.47
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

$2.47

$2.28

$1.89

$1.75

Reel

$1.29

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: $2.47
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

$2.47

$2.28

$1.89

$1.75

Reel

$1.29

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: $2.47
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

$2.47

$2.28

$1.89

$1.75

Reel

$1.31

View

MouseReel Available

Min.: 1
Mult.: 1

: 1,000

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

MOV-20D301KKTR
Bourns
1: $1.79
7,690In Stock

Mfr. Part No.
MOV-20D301KKTR

Mouser Part No
652-MOV-20D301KKTR

Bourns

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

Learn More

Datasheet

7,690In Stock

Cut Tape

$1.79

$1.09

$0.716

Reel

$0.664

$0.564

View

MouseReel Available

Min.: 1
Mult.: 1

: 250

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

PF-GT3-63
Bourns
1: $45.49
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

$45.49

$36.57

$35.68

$33.62

View

Min.: 1
Mult.: 1

Automotive Fuses POWrFuse TH 275Vac 500Vdc 50A

PF-KT1-50
Bourns
1: $46.20
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

$46.20

$40.56

$31.80

$28.72

Min.: 1
Mult.: 1

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

MOV-14D271KKTR
Bourns
1: $1.17
21,500In 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

21,500In Stock

Cut Tape

$1.17

$0.703

$0.442

$0.388

Reel

$0.292

View

MouseReel Available

Min.: 1
Mult.: 1

: 500

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

MOV-20D621KKTR
Bourns
1: $2.46
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

$2.46

$1.52

$1.04

Reel

$0.972

$0.859

View

MouseReel Available

Min.: 1
Mult.: 1

: 250

ESD Protection Diodes / TVS Diodes 22volts 5uA 84.4 Amps Bi-Dir

SMLJ22CA
Bourns
1: $1.64
33,792In Stock

Mfr. Part No.
SMLJ22CA

Mouser Part No
652-SMLJ22CA

Bourns

ESD Protection Diodes / TVS Diodes 22volts 5uA 84.4 Amps Bi-Dir

Learn More

Datasheet

33,792In Stock

Cut Tape

$1.64

$1.15

$0.869

$0.73

Reel

$0.63

View

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

Thermal Cut-offs TCO, High Current, SMD, 72C, Self Hold AEC-Q200

SD72ABB
Bourns
1: $3.60
2,657In Stock

Mfr. Part No.
SD72ABB

Mouser Part No
652-SD72ABB

Bourns

Thermal Cut-offs TCO, High Current, SMD, 72C, Self Hold AEC-Q200

Learn More

Datasheet

2,657In Stock

Cut Tape

$3.60

$3.25

$2.88

$1.50

Reel

$1.47

MouseReel Available

Min.: 1
Mult.: 1

: 4,000

Industrial & Electrical Fuses POWrFuse BD 800Vac 800Vdc 175A

PF-FB1-175
Bourns
1: $184.38
40In Stock

Mfr. Part No.
PF-FB1-175

Mouser Part No
652-PF-FB1-175

Bourns

Industrial & Electrical Fuses POWrFuse BD 800Vac 800Vdc 175A

Learn More

Datasheet

40In Stock

$184.38

$174.22

$116.87

$114.20

View

Min.: 1
Mult.: 1

Industrial & Electrical Fuses POWrFuse BD 800Vac 800Vdc 200A

PF-FB2-200
Bourns
1: $140.20
53In Stock

Mfr. Part No.
PF-FB2-200

Mouser Part No
652-PF-FB2-200

Bourns

Industrial & Electrical Fuses POWrFuse BD 800Vac 800Vdc 200A

Learn More

Datasheet

53In Stock

$140.20

$123.28

$116.87

$108.52

Quote

Min.: 1
Mult.: 1

Industrial & Electrical Fuses POWrFuse TH 600Vac 600Vdc 25A

PF-HT1-25
Bourns
1: $33.68
228In Stock

Mfr. Part No.
PF-HT1-25

Mouser Part No
652-PF-HT1-25

Bourns

Industrial & Electrical Fuses POWrFuse TH 600Vac 600Vdc 25A

Learn More

Datasheet

228In Stock

$33.68

$29.48

$28.37

$24.10

View

Min.: 1
Mult.: 1

Circuit Protection Devices

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Circuit Protection Devices

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