.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: 359,642

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 #

NTC (Negative Temperature Coefficient) Thermistors 10KOhm 20% Thermisto w/adjacent leads

112-103FAJ-B01
Honeywell
1: $45.42
152In Stock

Mfr. Part No.
112-103FAJ-B01

Mouser Part No
785-112-103FAJ-B01

Honeywell

NTC (Negative Temperature Coefficient) Thermistors 10KOhm 20% Thermisto w/adjacent leads

Datasheet

152In Stock

$45.42

$42.43

$40.95

$38.94

View

Min.: 1
Mult.: 1

SCRs 35A 1200V Single SCR

VS-40TPS12-M3
Vishay Semiconductors
1: $12.29
759In Stock

Mfr. Part No.
VS-40TPS12-M3

Mouser Part No
844-40TPS12-M3

Vishay Semiconductors

SCRs 35A 1200V Single SCR

Datasheet

759In Stock

$12.29

$7.37

$5.85

Min.: 1
Mult.: 1

Triacs 8A 35mA 800V IGT 3 QUAD INTERNL ISLTD

BTA08-800CW3G
Littelfuse
1: $5.56
1,062In Stock

Mfr. Part No.
BTA08-800CW3G

Mouser Part No
863-BTA08-800CW3G

Littelfuse

Triacs 8A 35mA 800V IGT 3 QUAD INTERNL ISLTD

Datasheet

1,062In Stock

$5.56

$2.84

$2.58

$2.34

View

Min.: 1
Mult.: 1

SCRs 600V 25A

MCR25MG
Littelfuse
1: $5.44
803In Stock

Mfr. Part No.
MCR25MG

Mouser Part No
863-MCR25MG

Littelfuse

SCRs 600V 25A

Datasheet

803In Stock

Cut Tape

$5.44

$3.59

$2.48

Reel

$2.48

Min.: 1
Mult.: 1

: 1,000

Triacs THY SPECIAL TRIAC

T2800DG
Littelfuse
1: $3.84
3,355In Stock

Mfr. Part No.
T2800DG

Mouser Part No
863-T2800DG

Littelfuse

Triacs THY SPECIAL TRIAC

Datasheet

3,355In Stock

Cut Tape

$3.84

$2.38

$1.73

$1.54

Reel

$1.54

Min.: 1
Mult.: 1

: 1,000

NTC (Negative Temperature Coefficient) Thermistors NTC Thermistor 0402 47K F60 B-4108 NICA

B57250V2473F560
TDK
1: $0.163
34,657In Stock

Mfr. Part No.
B57250V2473F560

Mouser Part No
871-B57250V2473F560

TDK

NTC (Negative Temperature Coefficient) Thermistors NTC Thermistor 0402 47K F60 B-4108 NICA

Learn More

Datasheet

34,657In Stock

Cut Tape

$0.163

$0.141

$0.132

$0.11

View

Reel

$0.057

Min.: 1
Mult.: 1

: 10,000

Inrush Current Limiters S 364/1 M51

B57364S0109M051
TDK
1: $4.24
2,207In Stock

Mfr. Part No.
B57364S0109M051

Mouser Part No
871-B57364S0109M051

TDK

Inrush Current Limiters S 364/1 M51

Learn More

Datasheet

2,207In Stock

Cut Tape

$4.24

$3.52

$3.25

$2.69

View

Reel

$1.90

Min.: 1
Mult.: 1

: 2,000

NTC (Negative Temperature Coefficient) Thermistors 10kohm 3950 3% 200mW Probe M702/10K/J

B57702M0103J000
TDK
1: $7.72
1,267In Stock

Mfr. Part No.
B57702M0103J000

Mouser Part No
871-B57702M0103J000

TDK

NTC (Negative Temperature Coefficient) Thermistors 10kohm 3950 3% 200mW Probe M702/10K/J

Learn More

Datasheet

1,267In Stock

$7.72

$6.62

$5.79

$5.15

View

Min.: 1
Mult.: 1

NTC (Negative Temperature Coefficient) Thermistors 5k 3988

B57863S0502F040
TDK
1: $3.66
4,753In Stock

Mfr. Part No.
B57863S0502F040

Mouser Part No
871-B57863S502F40

TDK

NTC (Negative Temperature Coefficient) Thermistors 5k 3988

Learn More

Datasheet

4,753In Stock

$3.66

$3.50

$3.30

$3.17

View

Min.: 1
Mult.: 1

PTC (Positive Temperature Coefficient) Thermistors 160C 12Vdc 3ohms Disc PTC Heating

B59060A0160A010
TDK
1: $3.14
1,660In Stock

Mfr. Part No.
B59060A0160A010

Mouser Part No
871-B59060A0160A010

TDK

PTC (Positive Temperature Coefficient) Thermistors 160C 12Vdc 3ohms Disc PTC Heating

Learn More

Datasheet

1,660In Stock

$3.14

$2.57

$2.08

$1.94

View

Min.: 1
Mult.: 1

PTC (Positive Temperature Coefficient) Thermistors 180C 12Vdc 3ohms Disc PTC Heating

B59060A0180A010
TDK
1: $2.03
1,945In Stock

Mfr. Part No.
B59060A0180A010

Mouser Part No
871-B59060A0180A010

TDK

PTC (Positive Temperature Coefficient) Thermistors 180C 12Vdc 3ohms Disc PTC Heating

Learn More

Datasheet

1,945In Stock

$2.03

$1.93

$1.82

$1.74

View

Min.: 1
Mult.: 1

Varistors 625VAC 10% 10mm StandarD

B72210S0621K101
TDK
1: $0.898
8,400In Stock

Mfr. Part No.
B72210S0621K101

Mouser Part No
871-B72210S0621K101

TDK

Varistors 625VAC 10% 10mm StandarD

Learn More

Datasheet

8,400In Stock

$0.898

$0.575

$0.503

$0.468

View

Min.: 1
Mult.: 1

Varistors 20VAC 10% 10mm StandarD

B72210S0200K101
TDK
1: $0.503
9,612In Stock

Mfr. Part No.
B72210S0200K101

Mouser Part No
871-B72210S200K101

TDK

Varistors 20VAC 10% 10mm StandarD

Learn More

Datasheet

9,612In Stock

$0.503

$0.31

$0.268

$0.248

View

Min.: 1
Mult.: 1

Varistors 460VAC 10% 10mm AdvanceD

B72210S2461K101
TDK
1: $1.55
11,103In Stock

Mfr. Part No.
B72210S2461K101

Mouser Part No
871-B72210S2461K101

TDK

Varistors 460VAC 10% 10mm AdvanceD

Learn More

Datasheet

11,103In Stock

$1.55

$0.945

$0.602

$0.533

View

Min.: 1
Mult.: 1

Varistors 35VAC 10% 10mm StandarD

B72210S0350K101
TDK
1: $0.503
17,167In Stock

Mfr. Part No.
B72210S0350K101

Mouser Part No
871-B72210S350K101

TDK

Varistors 35VAC 10% 10mm StandarD

Learn More

Datasheet

17,167In Stock

$0.503

$0.31

$0.265

$0.248

View

Min.: 1
Mult.: 1

Varistors 14VAC 10% 20mm StandarD

B72220S0140K101
TDK
1: $1.25
4,374In Stock

Mfr. Part No.
B72220S0140K101

Mouser Part No
871-B72220S140K101

TDK

Varistors 14VAC 10% 20mm StandarD

Learn More

Datasheet

4,374In Stock

$1.25

$0.793

$0.69

$0.651

View

Min.: 1
Mult.: 1

Varistors 550VAC 10% 25mm SuperioR

B72225S4551K101
TDK
1: $4.91
845In Stock

Mfr. Part No.
B72225S4551K101

Mouser Part No
871-B72225S4551K101

TDK

Varistors 550VAC 10% 25mm SuperioR

Learn More

Datasheet

845In Stock

$4.91

$3.96

$3.70

$3.41

View

Min.: 1
Mult.: 1

Varistors 0603 5.6V Ceradiode

B72500D0050H160
TDK
1: $0.626
46,155In Stock

Mfr. Part No.
B72500D0050H160

Mouser Part No
871-B72500D0050H160

TDK

Varistors 0603 5.6V Ceradiode

Learn More

Datasheet

46,155In Stock

Cut Tape

$0.626

$0.389

$0.243

$0.204

Reel

$0.113

View

MouseReel Available

Min.: 1
Mult.: 1

: 4,000

Varistors 5.6 VDC 19V-CL

B72500D50A60
TDK
1: $0.272
166,530In Stock

Mfr. Part No.
B72500D50A60

Mouser Part No
871-B72500D50A60

TDK

Varistors 5.6 VDC 19V-CL

Learn More

Datasheet

166,530In Stock

Cut Tape

$0.272

$0.218

$0.131

$0.106

Reel

$0.06

View

MouseReel Available

Min.: 1
Mult.: 1

: 4,000

Varistors 0603 25V 30A 300mJ

B72500T0250K060
TDK
1: $0.734
18,539In Stock

Mfr. Part No.
B72500T0250K060

Mouser Part No
871-B72500T0250K060

TDK

Varistors 0603 25V 30A 300mJ

Learn More

Datasheet

18,539In Stock

Cut Tape

$0.734

$0.452

$0.287

$0.261

Reel

$0.131

View

MouseReel Available

Min.: 1
Mult.: 1

: 4,000

Varistors 1206 14V 200A 700pF

B72520T140K62
TDK
1: $0.734
8,851In Stock

Mfr. Part No.
B72520T140K62

Mouser Part No
871-B72520T140K62

TDK

Varistors 1206 14V 200A 700pF

Learn More

Datasheet

8,851In Stock

Cut Tape

$0.734

$0.46

$0.40

$0.371

View

Reel

$0.291

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

Varistors 1206 8.0V 200A

B72520T0080L062
TDK
1: $0.734
8,669In Stock

Mfr. Part No.
B72520T0080L062

Mouser Part No
871-B72520T80L62

TDK

Varistors 1206 8.0V 200A

Learn More

Datasheet

8,669In Stock

Cut Tape

$0.734

$0.46

$0.40

$0.371

View

Reel

$0.291

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

Varistors 1210 65V 126A 1200pF

B72530T6500K062
TDK
1: $1.20
7,048In Stock

Mfr. Part No.
B72530T6500K062

Mouser Part No
871-B72530T6500K062

TDK

Varistors 1210 65V 126A 1200pF

Learn More

Datasheet

7,048In Stock

Cut Tape

$1.20

$0.774

$0.68

$0.676

$0.666

Reel

$0.661

MouseReel Available

Min.: 1
Mult.: 1

: 2,000

Varistors 30VAC 10% 3225mm

B72650M0300K072
TDK
1: $1.13
9,244In Stock

Mfr. Part No.
B72650M0300K072

Mouser Part No
871-B72650M0300K072

TDK

Varistors 30VAC 10% 3225mm

Learn More

Datasheet

9,244In Stock

Cut Tape

$1.13

$0.709

$0.641

$0.597

Reel

$0.457

View

MouseReel Available

Min.: 1
Mult.: 1

: 2,000

Gas Discharge Tubes - GDTs / Gas Plasma Arrestors ES300XP

B88069X4180B502
TDK
1: $3.30
1,926In Stock

Mfr. Part No.
B88069X4180B502

Mouser Part No
871-B88069X4180B502

TDK

Gas Discharge Tubes - GDTs / Gas Plasma Arrestors ES300XP

Datasheet

1,926In Stock

$3.30

$3.05

$2.53

$2.34

View

Min.: 1
Mult.: 1

Circuit Protection

Types of Circuit Protection

Customer Service Office

Company

Resources

Support