.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: 359.326

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 #

SCRs 600V 40A 15mA TO263 High Temp 150c SCRs

SJ6040N2RP
Littelfuse
1: Rp140.530
745In Stock

Mfr. Part No.
SJ6040N2RP

Mouser Part No
576-SJ6040N2RP

Littelfuse

SCRs 600V 40A 15mA TO263 High Temp 150c SCRs

Learn More

Datasheet

745In Stock

Cut Tape

Rp140.530

Rp95.216

Rp69.348

Reel

Rp64.578

MouseReel Available

Min.: 1
Mult.: 1

: 500

Surface Mount Fuses 1A SMD

F0805B1R00FSTR
KYOCERA AVX
1: Rp20.364
4.838In Stock

Mfr. Part No.
F0805B1R00FSTR

Mouser Part No
581-F0805B1R00FSTR

KYOCERA AVX

Surface Mount Fuses 1A SMD

Learn More

Datasheet

4.838In Stock

Cut Tape

Rp20.364

Rp16.383

Rp13.796

Rp11.962

Reel

Rp8.476

View

MouseReel Available

Min.: 1
Mult.: 1

: 3.000

NTC (Negative Temperature Coefficient) Thermistors 10Kohms 1% 1000mm

NTCLE410E3103F102
Vishay / BC Components
1: Rp52.286
4.659In Stock

Mfr. Part No.
NTCLE410E3103F102

Mouser Part No
594-NTCL410E3103F102

Vishay / BC Components

NTC (Negative Temperature Coefficient) Thermistors 10Kohms 1% 1000mm

4.659In Stock

Rp52.286

Rp39.260

Rp34.857

Rp33.206

View

Min.: 1
Mult.: 1

NTC (Negative Temperature Coefficient) Thermistors 4.7Kohms 3% NTC Epoxy PVC 3977K

NTCLE400E3472HA
Vishay / BC Components
1: Rp53.937
1.330In Stock

Mfr. Part No.
NTCLE400E3472HA

Mouser Part No
594-NTCLE400E3472HA

Vishay / BC Components

NTC (Negative Temperature Coefficient) Thermistors 4.7Kohms 3% NTC Epoxy PVC 3977K

Learn More

Datasheet

1.330In Stock

Rp53.937

Rp44.030

Rp35.775

Rp33.206

View

Min.: 1
Mult.: 1

NTC (Negative Temperature Coefficient) Thermistors 2.2Kohms 5% SMD

NTCS0603E3222JMT
Vishay / BC Components
1: Rp6.238
19.254In Stock

Mfr. Part No.
NTCS0603E3222JMT

Mouser Part No
594-NTCS0603E3222JMT

Vishay / BC Components

NTC (Negative Temperature Coefficient) Thermistors 2.2Kohms 5% SMD

Learn More

Datasheet

19.254In Stock

Cut Tape

Rp6.238

Rp5.889

Rp5.210

Rp4.770

Reel

Rp3.449

View

MouseReel Available

Min.: 1
Mult.: 1

: 4.000

NTC (Negative Temperature Coefficient) Thermistors 10kOhms

NTCS0805E3103HLT
Vishay / BC Components
1: Rp8.256
9.763In Stock

Mfr. Part No.
NTCS0805E3103HLT

Mouser Part No
594-NTCS0805E3103HLT

Vishay / BC Components

NTC (Negative Temperature Coefficient) Thermistors 10kOhms

Learn More

Datasheet

9.763In Stock

Cut Tape

Rp8.256

Rp7.705

Rp7.173

Rp6.825

View

Reel

Rp5.063

MouseReel Available

Min.: 1
Mult.: 1

: 4.000

NTC (Negative Temperature Coefficient) Thermistors 470Kohms 1% SMD

NTCS0805E3474FXT
Vishay / BC Components
1: Rp12.842
4.948In Stock

Mfr. Part No.
NTCS0805E3474FXT

Mouser Part No
594-NTCS0805E3474FXT

Vishay / BC Components

NTC (Negative Temperature Coefficient) Thermistors 470Kohms 1% SMD

Learn More

Datasheet

4.948In Stock

Cut Tape

Rp12.842

Rp12.035

Rp11.246

Rp10.567

View

Reel

Rp6.861

MouseReel Available

Min.: 1
Mult.: 1

: 4.000

PTC (Positive Temperature Coefficient) Thermistors Automotive 1% 47-k o hm linear thermisto A 595-TMP6431QDECTQ1

TMP6431QDECRQ1
Texas Instruments
1: Rp3.853
21.130In Stock

Mfr. Part No.
TMP6431QDECRQ1

Mouser Part No
595-TMP6431QDECRQ1

Texas Instruments

PTC (Positive Temperature Coefficient) Thermistors Automotive 1% 47-k o hm linear thermisto A 595-TMP6431QDECTQ1

Learn More

Datasheet

21.130In Stock

Cut Tape

Rp3.853

Rp3.541

Rp3.119

Rp2.954

View

Reel

Rp1.926

MouseReel Available

Min.: 1
Mult.: 1

: 10.000

Circuit Breakers CBMC E4 24DC/1-10A S-R

1065729
Phoenix Contact
1: Rp2.133.456
92In Stock

Mfr. Part No.
1065729

Mouser Part No
651-1065729

Phoenix Contact

Circuit Breakers CBMC E4 24DC/1-10A S-R

Learn More

Datasheet

92In Stock

Rp2.133.456

Min.: 1
Mult.: 1

Industrial Surge Protectors PLT-SEC-T3-120-P-UT/PT

2907922
Phoenix Contact
1: Rp2.645.493
23In Stock

Mfr. Part No.
2907922

Mouser Part No
651-2907922

Phoenix Contact

Industrial Surge Protectors PLT-SEC-T3-120-P-UT/PT

Learn More

Datasheet

23In Stock

Rp2.645.493

Min.: 1
Mult.: 1

Cartridge Fuses FUSE 10 3X85 2A PV

3062766
Phoenix Contact
1: Rp836.394
66In Stock

Mfr. Part No.
3062766

Mouser Part No
651-3062766

Phoenix Contact

Cartridge Fuses FUSE 10 3X85 2A PV

Datasheet

66In Stock

Rp836.394

Min.: 1
Mult.: 1

Gas Discharge Tubes - GDTs / Gas Plasma Arrestors Sparkover100V/s 350V 3 Pole

2026-35-C2LF
Bourns
1: Rp39.444
1.859In Stock

Mfr. Part No.
2026-35-C2LF

Mouser Part No
652-2026-35-C2LF

Bourns

Gas Discharge Tubes - GDTs / Gas Plasma Arrestors Sparkover100V/s 350V 3 Pole

Learn More

Datasheet

1.859In Stock

Rp39.444

Rp35.591

Rp30.271

Rp26.969

View

Min.: 1
Mult.: 1

Gas Discharge Tubes - GDTs / Gas Plasma Arrestors GAS DISCHARGE TUBE MINI 3POLE 90VOLT

2036-09-SMLF
Bourns
1: Rp31.188
1.595In Stock

Mfr. Part No.
2036-09-SMLF

Mouser Part No
652-2036-09-SMLF

Bourns

Gas Discharge Tubes - GDTs / Gas Plasma Arrestors GAS DISCHARGE TUBE MINI 3POLE 90VOLT

Datasheet

1.595In Stock

Rp31.188

Rp28.987

Rp25.501

Rp23.483

View

Min.: 1
Mult.: 1

Varistors Chip Guard 0402 12 VOLTS

CG0402MLC-12LGA
Bourns
1: Rp4.587
42.401In Stock

Mfr. Part No.
CG0402MLC-12LGA

Mouser Part No
652-CG0402MLC-12LGA

Bourns

Varistors Chip Guard 0402 12 VOLTS

Learn More

Datasheet

42.401In Stock

Cut Tape

Rp4.587

Rp2.734

Rp2.348

Rp2.146

View

Reel

Rp1.725

MouseReel Available

Min.: 1
Mult.: 1

: 10.000

Resettable Fuses - PPTC 2920 Resettable SMD PPTC 3.0A/16V

MF-LSMF300/16X-2
Bourns
1: Rp17.979
13.791In Stock

Mfr. Part No.
MF-LSMF300/16X-2

Mouser Part No
652-MF-LSMF300/16X-2

Bourns

Resettable Fuses - PPTC 2920 Resettable SMD PPTC 3.0A/16V

Learn More

Datasheet

13.791In Stock

Cut Tape

Rp17.979

Rp14.989

Rp13.246

Rp10.989

View

Reel

Rp7.925

MouseReel Available

Min.: 1
Mult.: 1

: 4.000

Resettable Fuses - PPTC 2920 Resettable SMD PPTC 6.0A/12V

MF-LSMF600/12X-2
Bourns
1: Rp19.814
5.910In Stock

Mfr. Part No.
MF-LSMF600/12X-2

Mouser Part No
652-MF-LSMF600/12X-2

Bourns

Resettable Fuses - PPTC 2920 Resettable SMD PPTC 6.0A/12V

Learn More

Datasheet

5.910In Stock

Cut Tape

Rp19.814

Rp15.686

Rp13.558

Rp12.714

View

Reel

Rp8.109

MouseReel Available

Min.: 1
Mult.: 1

: 4.000

Resettable Fuses - PPTC 30V 750MA-HD 40A MAX

MF-MSHT075KX-2
Bourns
1: Rp13.393
15.407In Stock

Mfr. Part No.
MF-MSHT075KX-2

Mouser Part No
652-MF-MSHT075KX-2

Bourns

Resettable Fuses - PPTC 30V 750MA-HD 40A MAX

Learn More

Datasheet

15.407In Stock

Cut Tape

Rp13.393

Rp11.246

Rp9.870

Rp6.238

Reel

Rp5.265

View

MouseReel Available

Min.: 1
Mult.: 1

: 2.000

Resettable Fuses - PPTC PTC RESETTABLE 0.17A 60V RADIAL LEADED

MF-R017-2
Bourns
1: Rp8.439
10.744In Stock

Mfr. Part No.
MF-R017-2

Mouser Part No
652-MF-R017-2

Bourns

Resettable Fuses - PPTC PTC RESETTABLE 0.17A 60V RADIAL LEADED

Learn More

Datasheet

10.744In Stock

Cut Tape

Rp8.439

Rp6.329

Rp5.926

Rp4.476

Reel

Rp3.247

View

Min.: 1
Mult.: 1

: 3.000

Resettable Fuses - PPTC PTC 7.5A 16V RADIAL LEADED HI-TEMP

MF-RHT750-0
Bourns
1: Rp22.933
7.284In Stock

Mfr. Part No.
MF-RHT750-0

Mouser Part No
652-MF-RHT750-0

Bourns

Resettable Fuses - PPTC PTC 7.5A 16V RADIAL LEADED HI-TEMP

Learn More

Datasheet

7.284In Stock

Rp22.933

Rp20.181

Rp15.062

Rp14.732

View

Min.: 1
Mult.: 1

Resettable Fuses - PPTC 240V .33A-HD 4.5A MAX

MF-RM033/240-2
Bourns
1: Rp12.659
13.355In Stock

Mfr. Part No.
MF-RM033/240-2

Mouser Part No
652-MF-RM033/240-2

Bourns

Resettable Fuses - PPTC 240V .33A-HD 4.5A MAX

Learn More

Datasheet

13.355In Stock

Cut Tape

Rp12.659

Rp11.521

Rp9.577

Rp8.843

View

Reel

Rp5.706

Min.: 1
Mult.: 1

: 4.000

Resettable Fuses - PPTC 60V .145A-HD 3A MAX

MF-RX014/250-0
Bourns
1: Rp13.393
10.511In Stock

Mfr. Part No.
MF-RX014/250-0

Mouser Part No
652-MF-RX014/250-0

Bourns

Resettable Fuses - PPTC 60V .145A-HD 3A MAX

Learn More

Datasheet

10.511In Stock

Rp13.393

Rp10.237

Rp9.595

Rp7.247

View

Min.: 1
Mult.: 1

Thermal Cut-offs Trip Temp 72c 5c TOL

NR72CB0
Bourns
1: Rp24.217
4.427In Stock

Mfr. Part No.
NR72CB0

Mouser Part No
652-NR72CB0

Bourns

Thermal Cut-offs Trip Temp 72c 5c TOL

Learn More

Datasheet

4.427In Stock

Rp24.217

Rp15.356

Rp15.007

Rp13.760

View

Min.: 1
Mult.: 1

Varistors PV 130V 10%

PV130K3225R2
Bourns
1: Rp13.393
6.457In Stock

Mfr. Part No.
PV130K3225R2

Mouser Part No
652-PV130K3225R2

Bourns

Varistors PV 130V 10%

Learn More

Datasheet

6.457In Stock

Cut Tape

Rp13.393

Rp8.347

Rp7.412

Rp6.916

Reel

Rp5.962

View

MouseReel Available

Min.: 1
Mult.: 1

: 1.500

Varistors PV 60V 10%

PV60K3225R2
Bourns
1: Rp13.393
4.694In Stock

Mfr. Part No.
PV60K3225R2

Mouser Part No
652-PV60K3225R2

Bourns

Varistors PV 60V 10%

Learn More

Datasheet

4.694In Stock

Cut Tape

Rp13.393

Rp8.402

Rp7.412

Rp6.916

Reel

Rp5.926

View

MouseReel Available

Min.: 1
Mult.: 1

: 1.500

Thermal Cut-offs HC TCO 82C BL-51

SA82SB0
Bourns
1: Rp16.328
8.360In Stock

Mfr. Part No.
SA82SB0

Mouser Part No
652-SA82SB0

Bourns

Thermal Cut-offs HC TCO 82C BL-51

Learn More

Datasheet

8.360In Stock

Cut Tape

Rp16.328

Rp15.356

Rp14.383

Rp13.723

View

Reel

Rp8.641

MouseReel Available

Min.: 1
Mult.: 1

: 5.000

Circuit Protection

Types of Circuit Protection

Customer Service Office

Company

Resources

Support