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Circuit Protection

Circuit Protection devices and components are available at Mouser Electronics from industry leading manufacturers. Mouser is an authorized distributor for many circuit protection manufacturers including Analog Devices, Bourns, Eaton, Phoenix Contact, TDK EPCOS, Littelfuse, Vishay, & more.
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Please view our selection of circuit protection devices below.

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Types of Circuit Protection

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Results: 362,143

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Part #

Industrial & Electrical Fuses POWrFuse BD 1000Vdc 450A

PF-1NH100E450B2
Bourns
1: $474.20
4In Stock
New Product

Mfr. Part #
PF-1NH100E450B2

Mouser Part #
652-PF-1NH100E450B2

New Product

Bourns

Industrial & Electrical Fuses POWrFuse BD 1000Vdc 450A

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Datasheet

4In Stock

$474.20

$377.07

$347.48

Min.: 1
Mult.: 1

Industrial & Electrical Fuses POWrFuse BD 1000Vdc 500A

PF-1NH100E500B2
Bourns
1: $474.20
4In Stock
New Product

Mfr. Part #
PF-1NH100E500B2

Mouser Part #
652-PF-1NH100E500B2

New Product

Bourns

Industrial & Electrical Fuses POWrFuse BD 1000Vdc 500A

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Datasheet

4In Stock

$474.20

$377.07

$347.48

Min.: 1
Mult.: 1

Industrial & Electrical Fuses Specialty Fuses POWR-SPEED SQB ESR 1500VDC 3XL DIN 315A

ESR3XLDB0315XI
Littelfuse
1: $753.66
3In Stock
New Product

Mfr. Part #
ESR3XLDB0315XI

Mouser Part #
576-ESR3XLDB0315XI

New Product

Littelfuse

Industrial & Electrical Fuses Specialty Fuses POWR-SPEED SQB ESR 1500VDC 3XL DIN 315A

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Datasheet

3In Stock

$753.66

$618.84

$563.30

Quote

Min.: 1
Mult.: 1

Industrial & Electrical Fuses Specialty Fuses POWR-SPEED SQB ESR 1500VDC 3XL BOLT 500A

ESR3XLUB0500XI
Littelfuse
1: $791.05
3In Stock
New Product

Mfr. Part #
ESR3XLUB0500XI

Mouser Part #
576-ESR3XLUB0500XI

New Product

Littelfuse

Industrial & Electrical Fuses Specialty Fuses POWR-SPEED SQB ESR 1500VDC 3XL BOLT 500A

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Datasheet

3In Stock

$791.05

$673.31

$603.69

Quote

Min.: 1
Mult.: 1

ESD Protection Diodes / TVS Diodes 4V, 0.55pF, 20A, SOD882

SC4340L-01ETG
Littelfuse
1: $0.806
6,980In Stock
New Product

Mfr. Part #
SC4340L-01ETG

Mouser Part #
576-SC4340L-01ETG

New Product

Littelfuse

ESD Protection Diodes / TVS Diodes 4V, 0.55pF, 20A, SOD882

Learn More

6,980In Stock

Cut Tape

$0.806

$0.489

$0.312

$0.259

Reel

$0.144

View

Min.: 1
Mult.: 1

: 10,000

ESD Protection Diodes / TVS Diodes "20 V, 50pF, 5A,"

SP1120-01WTG
Littelfuse
1: $0.351
7,629In Stock
New Product

Mfr. Part #
SP1120-01WTG

Mouser Part #
576-SP1120-01WTG

New Product

Littelfuse

ESD Protection Diodes / TVS Diodes "20 V, 50pF, 5A,"

Learn More

7,629In Stock

Cut Tape

$0.351

$0.212

$0.166

$0.159

View

Reel

$0.114

Min.: 1
Mult.: 1

: 10,000

ESD Protection Diodes / TVS Diodes 4V, 0.45pF, 20A, Flipchip

SP4340L-01WTG
Littelfuse
1: $0.39
7,614In Stock
New Product

Mfr. Part #
SP4340L-01WTG

Mouser Part #
576-SP4340L-01WTG

New Product

Littelfuse

ESD Protection Diodes / TVS Diodes 4V, 0.45pF, 20A, Flipchip

Learn More

7,614In Stock

Cut Tape

$0.39

$0.242

$0.191

$0.181

View

Reel

$0.131

Min.: 1
Mult.: 1

: 10,000

Industrial & Electrical Fuses POWrFuse BD 1000Vdc 350A

PF-01N100E350B2
Bourns
1: $432.95
6In Stock
New Product

Mfr. Part #
PF-01N100E350B2

Mouser Part #
652-PF-01N100E350B2

New Product

Bourns

Industrial & Electrical Fuses POWrFuse BD 1000Vdc 350A

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Datasheet

6In Stock

$432.95

$359.22

$306.67

Min.: 1
Mult.: 1

Industrial & Electrical Fuses Specialty Fuses POWR-SPEED SQB ESR 1500VDC 3XL BOLT 450A

ESR3XLUB0450XI
Littelfuse
1: $798.60
3In Stock
New Product

Mfr. Part #
ESR3XLUB0450XI

Mouser Part #
576-ESR3XLUB0450XI

New Product

Littelfuse

Industrial & Electrical Fuses Specialty Fuses POWR-SPEED SQB ESR 1500VDC 3XL BOLT 450A

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Datasheet

3In Stock

$798.60

$655.75

$596.90

Quote

Min.: 1
Mult.: 1

ESD Protection Diodes / TVS Diodes 30V, 100A ,DNF2020-6L

SC3000-01UTG
Littelfuse
1: $2.07
3,100In Stock
New Product

Mfr. Part #
SC3000-01UTG

Mouser Part #
576-SC3000-01UTG

New Product

Littelfuse

ESD Protection Diodes / TVS Diodes 30V, 100A ,DNF2020-6L

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Datasheet

3,100In Stock

Cut Tape

$2.07

$1.31

$0.866

$0.679

Reel

$0.528

View

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

SCRs 8A 800V Std TO-251 V-PAK

SJ8008VTP
Littelfuse
1: $4.03
750In Stock
New Product

Mfr. Part #
SJ8008VTP

Mouser Part #
576-SJ8008VTP

New Product

Littelfuse

SCRs 8A 800V Std TO-251 V-PAK

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Datasheet

750In Stock

$4.03

$2.63

$1.81

$1.51

View

Min.: 1
Mult.: 1

Varistors MOV 240V 20mm 6.5KA 10% Silcn Coatng Strt Leads AEC-Q200

241KH20-AT
YAGEO
1: $2.69
300In Stock
750On Order
New Product

Mfr. Part #
241KH20-AT

Mouser Part #
603-241KH20-AT

New Product

YAGEO

Varistors MOV 240V 20mm 6.5KA 10% Silcn Coatng Strt Leads AEC-Q200

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Datasheet

300In Stock

750On Order

$2.69

$1.66

$1.15

$1.07

View

Min.: 1
Mult.: 1

ESD Protection Diodes / TVS Diodes ESD 5V UNI

CDDFN2-T5V0SC
Bourns
1: $0.494
8,400In Stock
New Product

Mfr. Part #
CDDFN2-T5V0SC

Mouser Part #
652-CDDFN2-T5V0SC

New Product

Bourns

ESD Protection Diodes / TVS Diodes ESD 5V UNI

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Datasheet

8,400In Stock

Cut Tape

$0.494

$0.343

$0.168

$0.14

Reel

$0.061

View

MouseReel Available

Min.: 1
Mult.: 1

: 12,000

Industrial & Electrical Fuses POWrFuse BD 1000Vdc 600A

PF-1NH100E600B2
Bourns
1: $474.20
4In Stock
New Product

Mfr. Part #
PF-1NH100E600B2

Mouser Part #
652-PF-1NH100E600B2

New Product

Bourns

Industrial & Electrical Fuses POWrFuse BD 1000Vdc 600A

Learn More

Datasheet

4In Stock

$474.20

$377.07

$347.48

Min.: 1
Mult.: 1

Industrial & Electrical Fuses Specialty Fuses POWR-SPEED SQB ESR 1500VDC 3XL BOLT 315A

ESR3XLUB0315XI
Littelfuse
1: $759.80
2In Stock
1Expected 9/3/2026
New Product

Mfr. Part #
ESR3XLUB0315XI

Mouser Part #
576-ESR3XLUB0315XI

New Product

Littelfuse

Industrial & Electrical Fuses Specialty Fuses POWR-SPEED SQB ESR 1500VDC 3XL BOLT 315A

Learn More

Datasheet

2In Stock

1Expected 9/3/2026

$759.80

$623.88

$567.89

Quote

Min.: 1
Mult.: 1

Triacs 0.8A 600V Sens SOT-89

LX809MBRP
Littelfuse
1: $1.77
700In Stock
200Expected 8/12/2026
New Product

Mfr. Part #
LX809MBRP

Mouser Part #
576-LX809MBRP

New Product

Littelfuse

Triacs 0.8A 600V Sens SOT-89

Learn More

Datasheet

700In Stock

200Expected 8/12/2026

Cut Tape

$1.77

$1.09

$0.715

$0.569

Reel

$0.484

View

MouseReel Available

Min.: 1
Mult.: 1

: 1,000

Varistors MOV 390V 20mm 6.5KA 10% Silcn Coatng Strt Leads AEC-Q200

391KH20-AT
YAGEO
1: $2.70
300In Stock
750On Order
New Product

Mfr. Part #
391KH20-AT

Mouser Part #
603-391KH20-AT

New Product

YAGEO

Varistors MOV 390V 20mm 6.5KA 10% Silcn Coatng Strt Leads AEC-Q200

Learn More

Datasheet

300In Stock

750On Order

$2.70

$1.68

$1.15

$1.08

View

Min.: 1
Mult.: 1

Industrial Surge Protectors SFP2-1S-1-20A-230AC-UT

1292605
Phoenix Contact
1: $333.41
2In Stock
24Expected 10/26/2026
New Product

Mfr. Part #
1292605

Mouser Part #
651-1292605

New Product

Phoenix Contact

Industrial Surge Protectors SFP2-1S-1-20A-230AC-UT

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Datasheet

2In Stock

24Expected 10/26/2026

$333.41

Min.: 1
Mult.: 1

Industrial & Electrical Fuses POWrFuse BD 1000Vdc 400A

PF-1NH100E400B2
Bourns
1: $474.20
4In Stock
New Product

Mfr. Part #
PF-1NH100E400B2

Mouser Part #
652-PF-1NH100E400B2

New Product

Bourns

Industrial & Electrical Fuses POWrFuse BD 1000Vdc 400A

Learn More

Datasheet

4In Stock

$474.20

$377.07

$347.48

Min.: 1
Mult.: 1

Industrial & Electrical Fuses POWrFuse BD 1000Vdc 550A

PF-1NH100E550B2
Bourns
1: $474.20
4In Stock
New Product

Mfr. Part #
PF-1NH100E550B2

Mouser Part #
652-PF-1NH100E550B2

New Product

Bourns

Industrial & Electrical Fuses POWrFuse BD 1000Vdc 550A

Learn More

Datasheet

4In Stock

$474.20

$377.07

$347.48

Min.: 1
Mult.: 1

ESD Protection Diodes / TVS Diodes 5V, 6A, SOD882

SC1003-01ETG
Littelfuse
1: $0.78
10,080In Stock
New Product

Mfr. Part #
SC1003-01ETG

Mouser Part #
576-SC1003-01ETG

New Product

Littelfuse

ESD Protection Diodes / TVS Diodes 5V, 6A, SOD882

Learn More

Datasheet

10,080In Stock

Cut Tape

$0.78

$0.477

$0.304

$0.254

Reel

$0.142

View

MouseReel Available

Min.: 1
Mult.: 1

: 10,000

ESD Protection Diodes / TVS Diodes DIO TVS VWM 24V 350W BIDIR SOD323 Automotive

CDSOD323-T24LC-Q
Bourns
1: $1.61
2,044In Stock
New Product

Mfr. Part #
CDSOD323-T24LC-Q

Mouser Part #
652-CDSOD323-T24LC-Q

New Product

Bourns

ESD Protection Diodes / TVS Diodes DIO TVS VWM 24V 350W BIDIR SOD323 Automotive

Learn More

Datasheet

2,044In Stock

Cut Tape

$1.61

$1.01

$0.663

$0.516

Reel

$0.399

View

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

Industrial & Electrical Fuses POWrFuse BD 1000Vdc 250A

PF-01N100E250B2
Bourns
1: $412.17
6In Stock
New Product

Mfr. Part #
PF-01N100E250B2

Mouser Part #
652-PF-01N100E250B2

New Product

Bourns

Industrial & Electrical Fuses POWrFuse BD 1000Vdc 250A

Learn More

Datasheet

6In Stock

$412.17

$340.31

$291.98

$276.81

Min.: 1
Mult.: 1

Industrial & Electrical Fuses Specialty Fuses POWR-SPEED SQB ESR 1500VDC 3XL BOLT 250A

ESR3XLUB0250XI
Littelfuse
1: $679.15
3In Stock
New Product

Mfr. Part #
ESR3XLUB0250XI

Mouser Part #
576-ESR3XLUB0250XI

New Product

Littelfuse

Industrial & Electrical Fuses Specialty Fuses POWR-SPEED SQB ESR 1500VDC 3XL BOLT 250A

Learn More

Datasheet

3In Stock

$679.15

$557.65

$507.62

Quote

Min.: 1
Mult.: 1

ESD Protection Diodes / TVS Diodes 7V & 12V 75pF 20A SOT23-3L

SC712-02HTG
Littelfuse
1: $1.69
2,100In Stock
100Expected 11/17/2026
New Product

Mfr. Part #
SC712-02HTG

Mouser Part #
576-SC712-02HTG

New Product

Littelfuse

ESD Protection Diodes / TVS Diodes 7V & 12V 75pF 20A SOT23-3L

Learn More

Datasheet

2,100In Stock

100Expected 11/17/2026

Cut Tape

$1.69

$1.06

$0.697

$0.543

Reel

$0.42

View

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

Circuit Protection

Types of Circuit Protection

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