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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: 362,125

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Part #

Industrial & Electrical Fuses POWrFuse BD 1000Vdc 630A

PF-1NH100E630B2
Bourns
1: $525.27
4In Stock
New Product

Mfr. Part #
PF-1NH100E630B2

Mouser Part #
652-PF-1NH100E630B2

New Product

Bourns

Industrial & Electrical Fuses POWrFuse BD 1000Vdc 630A

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Datasheet

4In Stock

$525.27

$417.67

$384.90

Min.: 1
Mult.: 1

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

ESR3XLUB0450XI
Littelfuse
1: $884.61
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

$884.61

$726.36

$661.18

Quote

Min.: 1
Mult.: 1

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

SJ8008VTP
Littelfuse
1: $4.46
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

$4.46

$2.91

$2.00

$1.67

View

Min.: 1
Mult.: 1

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

241KH20-AT
YAGEO
1: $2.98
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

$2.98

$1.84

$1.27

$1.19

View

Min.: 1
Mult.: 1

Varistors MOV 430V 20mm 6.5KA 10% Silcn Coatng Strt Leads AEC-Q200

431KH20-AT
YAGEO
1: $3.00
300In Stock
750On Order
New Product

Mfr. Part #
431KH20-AT

Mouser Part #
603-431KH20-AT

New Product

YAGEO

Varistors MOV 430V 20mm 6.5KA 10% Silcn Coatng Strt Leads AEC-Q200

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Datasheet

300In Stock

750On Order

$3.00

$1.86

$1.28

$1.19

View

Min.: 1
Mult.: 1

Varistors MOV 560V 20mm 6.5KA 10% Silcn Coatng Strt Leads AEC-Q200

561KH20-AT
YAGEO
1: $3.07
250In Stock
750On Order
New Product

Mfr. Part #
561KH20-AT

Mouser Part #
603-561KH20-AT

New Product

YAGEO

Varistors MOV 560V 20mm 6.5KA 10% Silcn Coatng Strt Leads AEC-Q200

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Datasheet

250In Stock

750On Order

$3.07

$1.92

$1.71

$1.42

View

Min.: 1
Mult.: 1

ESD Protection Diodes / TVS Diodes ESD 5V UNI

CDDFN2-T5V0SC
Bourns
1: $0.547
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

$0.547

$0.38

$0.186

$0.156

Reel

$0.068

View

MouseReel Available

Min.: 1
Mult.: 1

: 12,000

Industrial & Electrical Fuses POWrFuse BD 1000Vdc 600A

PF-1NH100E600B2
Bourns
1: $525.27
4In Stock
New Product

Mfr. Part #
PF-1NH100E600B2

Mouser Part #
652-PF-1NH100E600B2

New Product

Bourns

Industrial & Electrical Fuses POWrFuse BD 1000Vdc 600A

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Datasheet

4In Stock

$525.27

$417.67

$384.90

Min.: 1
Mult.: 1

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

SC1003-01ETG
Littelfuse
1: $0.864
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

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Datasheet

10,080In Stock

Cut Tape

$0.864

$0.528

$0.337

$0.281

Reel

$0.157

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: $1.79
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

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Datasheet

2,044In Stock

Cut Tape

$1.79

$1.12

$0.734

$0.572

Reel

$0.442

View

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

Industrial & Electrical Fuses POWrFuse BD 1000Vdc 250A

PF-01N100E250B2
Bourns
1: $456.55
6In Stock
New Product

Mfr. Part #
PF-01N100E250B2

Mouser Part #
652-PF-01N100E250B2

New Product

Bourns

Industrial & Electrical Fuses POWrFuse BD 1000Vdc 250A

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Datasheet

6In Stock

$456.55

$376.96

$323.42

$306.62

Min.: 1
Mult.: 1

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

ESR3XLUB0315XI
Littelfuse
1: $841.62
2In Stock
1Expected 2026-09-03
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

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Datasheet

2In Stock

1Expected 2026-09-03

$841.62

$691.07

$629.05

Quote

Min.: 1
Mult.: 1

Triacs 0.8A 600V Sens SOT-89

LX809MBRP
Littelfuse
1: $1.96
700In Stock
200Expected 2026-08-12
New Product

Mfr. Part #
LX809MBRP

Mouser Part #
576-LX809MBRP

New Product

Littelfuse

Triacs 0.8A 600V Sens SOT-89

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Datasheet

700In Stock

200Expected 2026-08-12

Cut Tape

$1.96

$1.21

$0.792

$0.631

Reel

$0.536

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: $3.00
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

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Datasheet

300In Stock

750On Order

$3.00

$1.86

$1.28

$1.19

View

Min.: 1
Mult.: 1

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

1292605
Phoenix Contact
1: $369.32
2In Stock
24Expected 2026-10-26
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 2026-10-26

$369.32

Min.: 1
Mult.: 1

Industrial & Electrical Fuses POWrFuse BD 1000Vdc 400A

PF-1NH100E400B2
Bourns
1: $525.27
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

$525.27

$417.67

$384.90

Min.: 1
Mult.: 1

Industrial & Electrical Fuses POWrFuse BD 1000Vdc 550A

PF-1NH100E550B2
Bourns
1: $525.27
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

$525.27

$417.67

$384.90

Min.: 1
Mult.: 1

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

ESR3XLDB0315XI
Littelfuse
1: $834.83
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

Learn More

Datasheet

3In Stock

$834.83

$685.48

$623.97

Quote

Min.: 1
Mult.: 1

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

ESR3XLUB0500XI
Littelfuse
1: $876.24
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

$876.24

$745.82

$668.71

Quote

Min.: 1
Mult.: 1

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

SC4340L-01ETG
Littelfuse
1: $0.893
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

$0.893

$0.541

$0.346

$0.287

Reel

$0.16

View

Min.: 1
Mult.: 1

: 10,000

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

SP1120-01WTG
Littelfuse
1: $0.389
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

$0.389

$0.235

$0.184

$0.176

View

Reel

$0.127

Min.: 1
Mult.: 1

: 10,000

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

SP4340L-01WTG
Littelfuse
1: $0.432
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

$0.432

$0.268

$0.212

$0.20

View

Reel

$0.145

Min.: 1
Mult.: 1

: 10,000

Varistors MOV 510V 20mm 6.5KA 10% Silcn Coatng Strt Leads AEC-Q200

511KH20-AT
YAGEO
1: $3.08
500In Stock
500On Order
New Product

Mfr. Part #
511KH20-AT

Mouser Part #
603-511KH20-AT

New Product

YAGEO

Varistors MOV 510V 20mm 6.5KA 10% Silcn Coatng Strt Leads AEC-Q200

Learn More

Datasheet

500In Stock

500On Order

$3.08

$1.90

$1.31

$1.22

View

Min.: 1
Mult.: 1

Varistors MOV 560V 10mm 2.5KA 10% Silcn Coatng Strt Leads AEC-Q200

561KH10-AT
YAGEO
1: $1.37
800In Stock
2,400On Order
New Product

Mfr. Part #
561KH10-AT

Mouser Part #
603-561KH10-AT

New Product

YAGEO

Varistors MOV 560V 10mm 2.5KA 10% Silcn Coatng Strt Leads AEC-Q200

Learn More

Datasheet

800In Stock

2,400On Order

$1.37

$0.821

$0.524

$0.487

View

Min.: 1
Mult.: 1

Industrial & Electrical Fuses POWrFuse BD 1000Vdc 350A

PF-01N100E350B2
Bourns
1: $479.58
6In Stock
New Product

Mfr. Part #
PF-01N100E350B2

Mouser Part #
652-PF-01N100E350B2

New Product

Bourns

Industrial & Electrical Fuses POWrFuse BD 1000Vdc 350A

Learn More

Datasheet

6In Stock

$479.58

$397.90

$339.70

Min.: 1
Mult.: 1

Circuit Protection

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