.hide-partial { max-height: none; } .show-more { display: none; }

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.
More...

Please view our selection of circuit protection devices below.

.catnav-wrapper { height: auto; overflow: visible; } .catalog-nav-tabs ul { white-space: normal; }

Types of Circuit Protection

List Images

Results: 359.646

Search within results

In Stock

Normally Stocked

Active

New Products

RoHS Compliant

Filter by

.search-refine-wrapper { display: inline-block; min-width: 100%; } .scroll-body { overflow-x: visible; } .search-table-wrapper { overflow: visible; } .hide-partial { max-height: none; } .show-more { display: none; }

Part #

Industrial Surge Protectors SFP2-1S-1-5A-120AC-UT

1292315
Phoenix Contact
1: 185,13 €
5In Stock
New Product

Mfr. Part No.
1292315

Mouser Part No
651-1292315

New Product

Phoenix Contact

Industrial Surge Protectors SFP2-1S-1-5A-120AC-UT

Learn More

Datasheet

5In Stock

185,13 €

Min.: 1
Mult.: 1

ESD Protection Diodes / TVS Diodes ESD 3.3V BI

CDDFN2-T3V3SC
Bourns
1: 0,361 €
8.400In Stock
New Product

Mfr. Part No.
CDDFN2-T3V3SC

Mouser Part No
652-CDDFN2-T3V3SC

New Product

Bourns

ESD Protection Diodes / TVS Diodes ESD 3.3V BI

Learn More

Datasheet

8.400In Stock

Cut Tape

0,361 €

0,25 €

0,123 €

0,102 €

Reel

0,045 €

View

MouseReel Available

Min.: 1
Mult.: 1

: 12.000

ESD Protection Diodes / TVS Diodes ESD 5V UNI

CDDFN2-T5V0SC
Bourns
1: 0,327 €
8.393In Stock
New Product

Mfr. Part No.
CDDFN2-T5V0SC

Mouser Part No
652-CDDFN2-T5V0SC

New Product

Bourns

ESD Protection Diodes / TVS Diodes ESD 5V UNI

Learn More

Datasheet

8.393In Stock

Cut Tape

0,327 €

0,227 €

0,111 €

0,093 €

Reel

0,043 €

View

MouseReel Available

Min.: 1
Mult.: 1

: 12.000

Industrial & Electrical Fuses POWrFuse BD 1000Vdc 600A

PF-1NH100E600B2
Bourns
1: 313,70 €
4In Stock
New Product

Mfr. Part No.
PF-1NH100E600B2

Mouser Part No
652-PF-1NH100E600B2

New Product

Bourns

Industrial & Electrical Fuses POWrFuse BD 1000Vdc 600A

Learn More

Datasheet

4In Stock

313,70 €

249,44 €

229,87 €

Min.: 1
Mult.: 1

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

ESR3XLUB0315XI
Littelfuse
1: 502,64 €
2In Stock
1Expected 12/29/2026
New Product

Mfr. Part No.
ESR3XLUB0315XI

Mouser Part No
576-ESR3XLUB0315XI

New Product

Littelfuse

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

Learn More

Datasheet

2In Stock

1Expected 12/29/2026

502,64 €

412,72 €

375,68 €

Quote

Min.: 1
Mult.: 1

Triacs 0.8A 600V Sens SOT-89

LX809MBRP
Littelfuse
1: 1,17 €
700In Stock
200On Order
New Product

Mfr. Part No.
LX809MBRP

Mouser Part No
576-LX809MBRP

New Product

Littelfuse

Triacs 0.8A 600V Sens SOT-89

Learn More

Datasheet

700In Stock

200On Order

Cut Tape

1,17 €

0,72 €

0,473 €

0,377 €

Reel

0,32 €

View

MouseReel Available

Min.: 1
Mult.: 1

: 1.000

NTC (Negative Temperature Coefficient) Thermistors Assembly Probe CE2 Type R37=29.37kOhms 2.5% Temp. Range -20 to 90

PT2C-51F-CE2
Shibaura Electronics
1: 5,21 €
100In Stock
New Product

Mfr. Part No.
PT2C-51F-CE2

Mouser Part No
603-PT2C-51F-CE2

New Product

Shibaura Electronics

NTC (Negative Temperature Coefficient) Thermistors Assembly Probe CE2 Type R37=29.37kOhms 2.5% Temp. Range -20 to 90

Learn More

Datasheet

100In Stock

5,21 €

4,75 €

4,03 €

3,86 €

View

Min.: 1
Mult.: 1

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

1292605
Phoenix Contact
1: 220,56 €
2In Stock
24On Order
New Product

Mfr. Part No.
1292605

Mouser Part No
651-1292605

New Product

Phoenix Contact

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

Learn More

Datasheet

2In Stock

24On Order

220,56 €

Min.: 1
Mult.: 1

Industrial & Electrical Fuses POWrFuse BD 1000Vdc 550A

PF-1NH100E550B2
Bourns
1: 313,70 €
4In Stock
New Product

Mfr. Part No.
PF-1NH100E550B2

Mouser Part No
652-PF-1NH100E550B2

New Product

Bourns

Industrial & Electrical Fuses POWrFuse BD 1000Vdc 550A

Learn More

Datasheet

4In Stock

313,70 €

249,44 €

229,87 €

Min.: 1
Mult.: 1

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

ESR3XLUB0250XI
Littelfuse
1: 449,28 €
3In Stock
New Product

Mfr. Part No.
ESR3XLUB0250XI

Mouser Part No
576-ESR3XLUB0250XI

New Product

Littelfuse

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

Learn More

Datasheet

3In Stock

449,28 €

368,91 €

335,81 €

Quote

Min.: 1
Mult.: 1

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

SC712-02HTG
Littelfuse
1: 1,12 €
2.084In Stock
100Expected 11/17/2026
New Product

Mfr. Part No.
SC712-02HTG

Mouser Part No
576-SC712-02HTG

New Product

Littelfuse

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

Learn More

Datasheet

2.084In Stock

100Expected 11/17/2026

Cut Tape

1,12 €

0,703 €

0,461 €

0,359 €

Reel

0,278 €

View

MouseReel Available

Min.: 1
Mult.: 1

: 3.000

NTC (Negative Temperature Coefficient) Thermistors Assembly Probe HT1 Type R100=3.3kOhms 2.5% Temp. Range -20 to 180

PT3H-51F-HT1
Shibaura Electronics
1: 5,21 €
100In Stock
New Product

Mfr. Part No.
PT3H-51F-HT1

Mouser Part No
603-PT3H-51F-HT1

New Product

Shibaura Electronics

NTC (Negative Temperature Coefficient) Thermistors Assembly Probe HT1 Type R100=3.3kOhms 2.5% Temp. Range -20 to 180

Learn More

Datasheet

100In Stock

5,21 €

4,75 €

4,03 €

3,86 €

View

Min.: 1
Mult.: 1

NTC (Negative Temperature Coefficient) Thermistors Assembly Probe EP1 Type R100=3.3kOhms 5% Temp. Range -30 to 120

PT3M-51F-EP1
Shibaura Electronics
1: 5,21 €
100In Stock
New Product

Mfr. Part No.
PT3M-51F-EP1

Mouser Part No
603-PT3M-51F-EP1

New Product

Shibaura Electronics

NTC (Negative Temperature Coefficient) Thermistors Assembly Probe EP1 Type R100=3.3kOhms 5% Temp. Range -30 to 120

Learn More

Datasheet

100In Stock

5,21 €

4,75 €

4,03 €

3,86 €

View

Min.: 1
Mult.: 1

ESD Protection Diodes / TVS Diodes DIO TVS VWM 12V 400W BIDIR SOD323 AUTO GRADE

CDSOD323-T12SC-Q
Bourns
1: 1,03 €
2.100In Stock
New Product

Mfr. Part No.
CDSOD323-T12SC-Q

Mouser Part No
652-CDSOD323-T12SC-Q

New Product

Bourns

ESD Protection Diodes / TVS Diodes DIO TVS VWM 12V 400W BIDIR SOD323 AUTO GRADE

Learn More

Datasheet

2.100In Stock

Cut Tape

1,03 €

0,645 €

0,424 €

0,33 €

Reel

0,255 €

View

MouseReel Available

Min.: 1
Mult.: 1

: 3.000

ESD Protection Diodes / TVS Diodes 18 V, 0.6 pF, 10 kV

AQ3118-02JTG
Littelfuse
1: 1,07 €
2.663In Stock
New Product

Mfr. Part No.
AQ3118-02JTG

Mouser Part No
576-AQ3118-02JTG

New Product

Littelfuse

ESD Protection Diodes / TVS Diodes 18 V, 0.6 pF, 10 kV

Learn More

Datasheet

2.663In Stock

Cut Tape

1,07 €

0,67 €

0,44 €

0,343 €

Reel

0,237 €

View

MouseReel Available

Min.: 1
Mult.: 1

: 3.000

ESD Protection Diodes / TVS Diodes TVS SURF MT DO214AA - SMBJ85CA CR T&R

SMBJ85CA-E
Littelfuse
1: 0,516 €
2.312In Stock
New Product

Mfr. Part No.
SMBJ85CA-E

Mouser Part No
576-SMBJ85CAE

New Product

Littelfuse

ESD Protection Diodes / TVS Diodes TVS SURF MT DO214AA - SMBJ85CA CR T&R

Datasheet

2.312In Stock

Cut Tape

0,516 €

0,268 €

0,20 €

0,151 €

Reel

0,081 €

0,077 €

Min.: 1
Mult.: 1

: 3.000

Varistors MOV 510V 10mm 2.5KA 10% Silcn Coatng Strt Leads AEC-Q200

511KH10-AT
YAGEO
1: 0,80 €
2.630In Stock
400On Order
New Product

Mfr. Part No.
511KH10-AT

Mouser Part No
603-511KH10-AT

New Product

YAGEO

Varistors MOV 510V 10mm 2.5KA 10% Silcn Coatng Strt Leads AEC-Q200

Learn More

Datasheet

2.630In Stock

400On Order

0,80 €

0,48 €

0,307 €

0,285 €

View

Min.: 1
Mult.: 1

NTC (Negative Temperature Coefficient) Thermistors Assembly Probe EP1 Type R0=30kOhms 3% Temp. Range -30 to 120

PB2EP-43-EP1
Shibaura Electronics
1: 5,21 €
100In Stock
New Product

Mfr. Part No.
PB2EP-43-EP1

Mouser Part No
603-PB2EP-43-EP1

New Product

Shibaura Electronics

NTC (Negative Temperature Coefficient) Thermistors Assembly Probe EP1 Type R0=30kOhms 3% Temp. Range -30 to 120

Learn More

Datasheet

100In Stock

5,21 €

4,75 €

4,03 €

3,86 €

View

Min.: 1
Mult.: 1

Industrial Surge Protectors SFP2-1S-1-10A-120AC-UT

1292457
Phoenix Contact
1: 193,99 €
1In Stock
9On Order
New Product

Mfr. Part No.
1292457

Mouser Part No
651-1292457

New Product

Phoenix Contact

Industrial Surge Protectors SFP2-1S-1-10A-120AC-UT

Learn More

Datasheet

1In Stock

9On Order

193,99 €

Min.: 1
Mult.: 1

ESD Protection Diodes / TVS Diodes ESD 5V BI SOD323

CDSOD323-T12C-Q
Bourns
1: 1,02 €
2.081In Stock
New Product

Mfr. Part No.
CDSOD323-T12C-Q

Mouser Part No
652-CDSOD323-T12C-Q

New Product

Bourns

ESD Protection Diodes / TVS Diodes ESD 5V BI SOD323

Learn More

Datasheet

2.081In Stock

Cut Tape

1,02 €

0,637 €

0,418 €

0,323 €

Reel

0,255 €

View

MouseReel Available

Min.: 1
Mult.: 1

: 3.000

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

CDSOT23-SM712-Q
Bourns
1: 1,30 €
1.218In 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

Learn More

Datasheet

1.218In Stock

24.000On Order

Cut Tape

1,30 €

0,72 €

0,544 €

0,425 €

Reel

0,311 €

View

Min.: 1
Mult.: 1

: 3.000

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

SC1003-01ETG
Littelfuse
1: 0,516 €
10.080In Stock
New Product

Mfr. Part No.
SC1003-01ETG

Mouser Part No
576-SC1003-01ETG

New Product

Littelfuse

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

Learn More

Datasheet

10.080In Stock

Cut Tape

0,516 €

0,316 €

0,201 €

0,168 €

Reel

0,094 €

View

MouseReel Available

Min.: 1
Mult.: 1

: 10.000

NTC (Negative Temperature Coefficient) Thermistors Assembly Probe MP3 Type R200=1.0kOhms 5% Temp. Range -40 to 200

PL3FC-312-MP3
Shibaura Electronics
1: 10,42 €
100In Stock
New Product

Mfr. Part No.
PL3FC-312-MP3

Mouser Part No
603-PL3FC-312-MP3

New Product

Shibaura Electronics

NTC (Negative Temperature Coefficient) Thermistors Assembly Probe MP3 Type R200=1.0kOhms 5% Temp. Range -40 to 200

Learn More

Datasheet

100In Stock

10,42 €

9,49 €

8,07 €

7,71 €

View

Min.: 1
Mult.: 1

NTC (Negative Temperature Coefficient) Thermistors Assembly Probe RT1 Type R100=3.3kOhms 2.5% Temp. Range -20 to 180

PTP-51F-RT1
Shibaura Electronics
1: 5,21 €
100In Stock
New Product

Mfr. Part No.
PTP-51F-RT1

Mouser Part No
603-PTP-51F-RT1

New Product

Shibaura Electronics

NTC (Negative Temperature Coefficient) Thermistors Assembly Probe RT1 Type R100=3.3kOhms 2.5% Temp. Range -20 to 180

Learn More

Datasheet

100In Stock

5,21 €

4,75 €

4,03 €

3,86 €

View

Min.: 1
Mult.: 1

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

CDSOD323-T24LC-Q
Bourns
1: 1,07 €
2.044In Stock
New Product

Mfr. Part No.
CDSOD323-T24LC-Q

Mouser Part No
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

1,07 €

0,667 €

0,439 €

0,341 €

Reel

0,264 €

View

MouseReel Available

Min.: 1
Mult.: 1

: 3.000

Circuit Protection

Types of Circuit Protection

Customer Service Office

Company

Resources

Support