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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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Part #

Triacs Triacs

MAC8NG
Littelfuse
1: CHF 1.85
1’833In Stock

Mfr. Part No.
MAC8NG

Mouser Part No
863-MAC8NG

Littelfuse

Triacs Triacs

Datasheet

1’833In Stock

Cut Tape

CHF 1.85

CHF 1.08

CHF 0.791

CHF 0.715

Reel

CHF 0.715

Min.: 1
Mult.: 1

: 1’000

Triacs Triacs

MAC8SNG
Littelfuse
1: CHF 1.68
3’754In Stock

Mfr. Part No.
MAC8SNG

Mouser Part No
863-MAC8SNG

Littelfuse

Triacs Triacs

Datasheet

3’754In Stock

Cut Tape

CHF 1.68

CHF 1.00

CHF 0.755

CHF 0.663

Reel

CHF 0.622

Min.: 1
Mult.: 1

: 1’000

NTC (Negative Temperature Coefficient) Thermistors 22 Ohms 2900 3%

B57164K0220K000
TDK
1: CHF 0.475
8’772In Stock

Mfr. Part No.
B57164K0220K000

Mouser Part No
871-B57164K220K

TDK

NTC (Negative Temperature Coefficient) Thermistors 22 Ohms 2900 3%

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Datasheet

8’772In Stock

CHF 0.475

CHF 0.446

CHF 0.417

CHF 0.398

View

Min.: 1
Mult.: 1

Inrush Current Limiters S 236/16/M

B57236S0160M000
TDK
1: CHF 0.854
5’883In Stock

Mfr. Part No.
B57236S0160M000

Mouser Part No
871-B57236S0160M000

TDK

Inrush Current Limiters S 236/16/M

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Datasheet

5’883In Stock

CHF 0.854

CHF 0.781

CHF 0.648

CHF 0.598

View

Min.: 1
Mult.: 1

Inrush Current Limiters S 236/80 M

B57236S0800M000
TDK
1: CHF 0.813
7’579In Stock

Mfr. Part No.
B57236S0800M000

Mouser Part No
871-B57236S0800M000

TDK

Inrush Current Limiters S 236/80 M

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Datasheet

7’579In Stock

CHF 0.813

CHF 0.726

CHF 0.616

CHF 0.568

View

Min.: 1
Mult.: 1

Inrush Current Limiters S 237/7 M51

B57237S0709M051
TDK
1: CHF 1.01
2’291In Stock

Mfr. Part No.
B57237S0709M051

Mouser Part No
871-B57237S0709M051

TDK

Inrush Current Limiters S 237/7 M51

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Datasheet

2’291In Stock

Cut Tape

CHF 1.01

CHF 0.926

CHF 0.797

CHF 0.735

Reel

CHF 0.551

View

Min.: 1
Mult.: 1

: 2’000

Inrush Current Limiters 10 Ohms 3.7amps 3060k

B57237S0100M054
TDK
1: CHF 1.24
16’441In Stock

Mfr. Part No.
B57237S0100M054

Mouser Part No
871-B57237S100M54

TDK

Inrush Current Limiters 10 Ohms 3.7amps 3060k

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Datasheet

16’441In Stock

CHF 1.24

CHF 1.10

CHF 0.945

CHF 0.87

View

Reel

CHF 0.564

Min.: 1
Mult.: 1

: 1’500

Inrush Current Limiters S 238/2.5/M

B57238S0259M000
TDK
1: CHF 0.789
2’538In Stock

Mfr. Part No.
B57238S0259M000

Mouser Part No
871-B57238S0259M000

TDK

Inrush Current Limiters S 238/2.5/M

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Datasheet

2’538In Stock

CHF 0.789

CHF 0.723

CHF 0.60

CHF 0.554

View

Min.: 1
Mult.: 1

NTC (Negative Temperature Coefficient) Thermistors 10k 4000 3%

B57321V2103J60
TDK
1: CHF 0.217
88’275In Stock

Mfr. Part No.
B57321V2103J60

Mouser Part No
871-B57321V2103J60

TDK

NTC (Negative Temperature Coefficient) Thermistors 10k 4000 3%

Learn More

Datasheet

88’275In Stock

Cut Tape

CHF 0.217

CHF 0.177

CHF 0.155

CHF 0.124

Reel

CHF 0.088

View

MouseReel Available

Min.: 1
Mult.: 1

: 4’000

NTC (Negative Temperature Coefficient) Thermistors 100.8kohm 4092 1.5% 50mW Probe K550

B57550K0104A001
TDK
1: CHF 4.07
2’816In Stock

Mfr. Part No.
B57550K0104A001

Mouser Part No
871-B57550K0104A001

TDK

NTC (Negative Temperature Coefficient) Thermistors 100.8kohm 4092 1.5% 50mW Probe K550

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Datasheet

2’816In Stock

CHF 4.07

CHF 3.66

CHF 3.51

CHF 3.32

View

Min.: 1
Mult.: 1

NTC (Negative Temperature Coefficient) Thermistors 1K J62 B-3450 NTC Thermistor 0805

B57620C5102J062
TDK
1: CHF 0.314
8’777In Stock

Mfr. Part No.
B57620C5102J062

Mouser Part No
871-B57620C5102J062

TDK

NTC (Negative Temperature Coefficient) Thermistors 1K J62 B-3450 NTC Thermistor 0805

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Datasheet

8’777In Stock

Cut Tape

CHF 0.314

CHF 0.293

CHF 0.259

CHF 0.246

Reel

CHF 0.21

View

MouseReel Available

Min.: 1
Mult.: 1

: 2’000

NTC (Negative Temperature Coefficient) Thermistors 2.2k 3900 1%

B57891S0222F008
TDK
1: CHF 1.40
1’772In Stock

Mfr. Part No.
B57891S0222F008

Mouser Part No
871-B57891S222F8

TDK

NTC (Negative Temperature Coefficient) Thermistors 2.2k 3900 1%

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Datasheet

1’772In Stock

CHF 1.40

CHF 1.31

CHF 1.18

CHF 1.12

View

Min.: 1
Mult.: 1

Varistors 25VAC 10% 7mm StandarD

B72207S0250K211
TDK
1: CHF 0.273
21’971In Stock

Mfr. Part No.
B72207S0250K211

Mouser Part No
871-B72207S0250K211

TDK

Varistors 25VAC 10% 7mm StandarD

Learn More

Datasheet

21’971In Stock

Cut Tape

CHF 0.273

CHF 0.167

CHF 0.143

CHF 0.132

View

Reel

CHF 0.095

Min.: 1
Mult.: 1

: 7’500

Varistors 11VAC 10% 10mm StandarD

B72210S0110K101
TDK
1: CHF 0.298
13’339In Stock

Mfr. Part No.
B72210S0110K101

Mouser Part No
871-B72210S110K101

TDK

Varistors 11VAC 10% 10mm StandarD

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Datasheet

13’339In Stock

CHF 0.298

CHF 0.183

CHF 0.158

CHF 0.147

CHF 0.14

Min.: 1
Mult.: 1

Varistors 550VAC 10% 14mm MP AdvanceD

B72214P2551K101
TDK
1: CHF 0.91
3’196In Stock

Mfr. Part No.
B72214P2551K101

Mouser Part No
871-B72214P2551K101

TDK

Varistors 550VAC 10% 14mm MP AdvanceD

Datasheet

3’196In Stock

CHF 0.91

CHF 0.527

CHF 0.445

CHF 0.429

Min.: 1
Mult.: 1

Varistors 350VAC 10% 14mm StandarD

B72214S0351K103
TDK
1: CHF 0.371
8’681In Stock

Mfr. Part No.
B72214S0351K103

Mouser Part No
871-B72214S0351K103

TDK

Varistors 350VAC 10% 14mm StandarD

Datasheet

8’681In Stock

CHF 0.371

CHF 0.233

CHF 0.203

CHF 0.188

View

Min.: 1
Mult.: 1

Varistors 230VAC 10% 14mm StandarD

B72214S0231K101
TDK
1: CHF 0.322
9’584In Stock

Mfr. Part No.
B72214S0231K101

Mouser Part No
871-B72214S231K101

TDK

Varistors 230VAC 10% 14mm StandarD

Learn More

Datasheet

9’584In Stock

CHF 0.322

CHF 0.202

CHF 0.175

CHF 0.163

View

Min.: 1
Mult.: 1

Varistors 20VAC 10% 20mm StandarD

B72220S0200K131
TDK
1: CHF 0.885
4’078In Stock

Mfr. Part No.
B72220S0200K131

Mouser Part No
871-B72220S0200K131

TDK

Varistors 20VAC 10% 20mm StandarD

Learn More

Datasheet

4’078In Stock

Cut Tape

CHF 0.885

CHF 0.578

CHF 0.509

CHF 0.476

Reel

CHF 0.375

View

Min.: 1
Mult.: 1

: 1’500

Varistors 26 VDC .7J 54V-CL 200A PK

B72520T200K62
TDK
1: CHF 0.945
10’192In Stock

Mfr. Part No.
B72520T200K62

Mouser Part No
871-B72520T200K62

TDK

Varistors 26 VDC .7J 54V-CL 200A PK

Datasheet

10’192In Stock

Cut Tape

CHF 0.945

CHF 0.579

CHF 0.37

CHF 0.327

View

Reel

CHF 0.179

MouseReel Available

Min.: 1
Mult.: 1

: 3’000

Varistors 0402 14V RMS 20A

B72590T0140L060
TDK
1: CHF 0.434
67’020In Stock

Mfr. Part No.
B72590T0140L060

Mouser Part No
871-B72590T140L60

TDK

Varistors 0402 14V RMS 20A

Learn More

Datasheet

67’020In Stock

Cut Tape

CHF 0.434

CHF 0.285

CHF 0.178

CHF 0.15

View

Reel

CHF 0.066

Min.: 1
Mult.: 1

: 10’000

Varistors 35VAC 10% 3225mm

B72650M0350K072
TDK
1: CHF 0.555
4’331In Stock

Mfr. Part No.
B72650M0350K072

Mouser Part No
871-B72650M0350K072

TDK

Varistors 35VAC 10% 3225mm

Learn More

Datasheet

4’331In Stock

Cut Tape

CHF 0.555

CHF 0.439

Reel

CHF 0.439

CHF 0.281

MouseReel Available

Min.: 1
Mult.: 1

: 2’000

Gas Discharge Tubes - GDTs / Gas Plasma Arrestors EC230XG

B88069X0850T502
TDK
1: CHF 1.35
2’681In Stock

Mfr. Part No.
B88069X0850T502

Mouser Part No
871-B88069X0850T502

TDK

Gas Discharge Tubes - GDTs / Gas Plasma Arrestors EC230XG

Datasheet

2’681In Stock

Cut Tape

CHF 1.35

CHF 1.24

CHF 1.03

CHF 0.945

Reel

CHF 0.746

View

Min.: 1
Mult.: 1

: 500

Gas Discharge Tubes - GDTs / Gas Plasma Arrestors A71-H25X

B88069X2190S102
TDK
1: CHF 1.83
5’554In Stock

Mfr. Part No.
B88069X2190S102

Mouser Part No
871-B88069X2190S102

TDK

Gas Discharge Tubes - GDTs / Gas Plasma Arrestors A71-H25X

Datasheet

5’554In Stock

CHF 1.83

Reel

CHF 1.80

CHF 1.74

CHF 1.72

Min.: 1
Mult.: 1

: 200

Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 4.5kV 20% 3kA EHV63-H45B2

B88069X2643B252
TDK
1: CHF 3.64
1’101In Stock

Mfr. Part No.
B88069X2643B252

Mouser Part No
871-B88069X2643B252

TDK

Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 4.5kV 20% 3kA EHV63-H45B2

Datasheet

1’101In Stock

CHF 3.64

CHF 3.05

CHF 2.40

CHF 2.12

View

Min.: 1
Mult.: 1

Gas Discharge Tubes - GDTs / Gas Plasma Arrestors T83-A500XF4

B88069X3771B502
TDK
1: CHF 2.97
1’079In Stock

Mfr. Part No.
B88069X3771B502

Mouser Part No
871-B88069X3771B502

TDK

Gas Discharge Tubes - GDTs / Gas Plasma Arrestors T83-A500XF4

Datasheet

1’079In Stock

CHF 2.97

CHF 2.50

CHF 1.96

CHF 1.74

View

Min.: 1
Mult.: 1

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