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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: 359,646

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Part #

ESD Protection Diodes / TVS Diodes 36V Vwm TransZorb eSMP TO-277A SMPC

SMPC36AN-M3/H
Vishay Semiconductors
1: $1.74
6,275In Stock

Mfr. Part No.
SMPC36AN-M3/H

Mouser Part No
78-SMPC36AN-M3/H

Vishay Semiconductors

ESD Protection Diodes / TVS Diodes 36V Vwm TransZorb eSMP TO-277A SMPC

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Datasheet

6,275In Stock

Cut Tape

$1.74

$0.847

$0.717

$0.559

Reel

$0.438

View

MouseReel Available

Min.: 1
Mult.: 1

: 1,500

Triacs 8A 35mA 600V IGT 3 QUAD INTERNL ISLTD

BTA08-600CW3G
Littelfuse
1: $6.07
1,070In Stock

Mfr. Part No.
BTA08-600CW3G

Mouser Part No
863-BTA08-600CW3G

Littelfuse

Triacs 8A 35mA 600V IGT 3 QUAD INTERNL ISLTD

Datasheet

1,070In Stock

$6.07

$3.16

$2.87

$2.86

Min.: 1
Mult.: 1

Triacs 12A 50mA 800V IGT 3 QUAD INTERNL ISLTD

BTA12-800BW3G
Littelfuse
1: $6.60
900In Stock

Mfr. Part No.
BTA12-800BW3G

Mouser Part No
863-BTA12-800BW3G

Littelfuse

Triacs 12A 50mA 800V IGT 3 QUAD INTERNL ISLTD

Datasheet

900In Stock

$6.60

$3.45

$3.21

Min.: 1
Mult.: 1

Triacs ISO TO220 25A 35mA TRIAC

BTA25-800CW3G
Littelfuse
1: $10.61
934In Stock

Mfr. Part No.
BTA25-800CW3G

Mouser Part No
863-BTA25-800CW3G

Littelfuse

Triacs ISO TO220 25A 35mA TRIAC

Datasheet

934In Stock

$10.61

$6.26

$5.70

$5.28

Min.: 1
Mult.: 1

SCRs 800V 12A

MCR12NG
Littelfuse
1: $4.05
1,276In Stock

Mfr. Part No.
MCR12NG

Mouser Part No
863-MCR12NG

Littelfuse

SCRs 800V 12A

Datasheet

1,276In Stock

Cut Tape

$4.05

$2.46

$1.84

$1.66

Reel

$1.66

Min.: 1
Mult.: 1

: 1,000

SCRs 400V 25A

MCR25DG
Littelfuse
1: $3.45
2,622In Stock

Mfr. Part No.
MCR25DG

Mouser Part No
863-MCR25DG

Littelfuse

SCRs 400V 25A

Datasheet

2,622In Stock

Cut Tape

$3.45

$1.71

$1.55

$1.33

Reel

$1.33

Min.: 1
Mult.: 1

: 1,000

Triacs THY SPECIAL TRIAC

T2500DG
Littelfuse
1: $3.54
1,877In Stock

Mfr. Part No.
T2500DG

Mouser Part No
863-T2500DG

Littelfuse

Triacs THY SPECIAL TRIAC

Datasheet

1,877In Stock

Cut Tape

$3.54

$1.92

$1.74

$1.52

Reel

$1.52

Min.: 1
Mult.: 1

: 1,000

Inrush Current Limiters 10 Ohms 2amp 2800k

B57153S0100M054
TDK
1: $1.12
9,844In Stock

Mfr. Part No.
B57153S0100M054

Mouser Part No
871-B57153S100M54

TDK

Inrush Current Limiters 10 Ohms 2amp 2800k

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Datasheet

9,844In Stock

$1.12

$1.03

$0.85

$0.786

View

Reel

$0.486

Min.: 1
Mult.: 1

: 3,000

Inrush Current Limiters 4.7 Ohms 3amp 2800k

B57153S0479M054
TDK
1: $1.12
3,688In Stock

Mfr. Part No.
B57153S0479M054

Mouser Part No
871-B57153S479M54

TDK

Inrush Current Limiters 4.7 Ohms 3amp 2800k

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Datasheet

3,688In Stock

$1.12

$1.01

$0.85

$0.786

View

Reel

$0.471

Min.: 1
Mult.: 1

: 3,000

Inrush Current Limiters S 238/15 M51

B57238S0150M051
TDK
1: $1.90
2,917In Stock

Mfr. Part No.
B57238S0150M051

Mouser Part No
871-B57238S0150M051

TDK

Inrush Current Limiters S 238/15 M51

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Datasheet

2,917In Stock

Cut Tape

$1.90

$1.77

$1.47

$1.35

Reel

$1.00

View

Min.: 1
Mult.: 1

: 1,000

NTC (Negative Temperature Coefficient) Thermistors 5k 3988 1%

B57861S0502F045
TDK
1: $3.60
1,930In Stock

Mfr. Part No.
B57861S0502F045

Mouser Part No
871-B57861S502F45

TDK

NTC (Negative Temperature Coefficient) Thermistors 5k 3988 1%

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Datasheet

1,930In Stock

$3.60

$3.45

$3.26

$3.13

View

Min.: 1
Mult.: 1

Varistors 275VAC 10% 5mm StandarD

B72205S0271K111
TDK
1: $0.435
26,602In Stock

Mfr. Part No.
B72205S0271K111

Mouser Part No
871-B72205S0271K111

TDK

Varistors 275VAC 10% 5mm StandarD

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Datasheet

26,602In Stock

Cut Tape

$0.435

$0.267

$0.23

$0.212

View

Reel

$0.155

Min.: 1
Mult.: 1

: 7,500

Varistors 320VAC 10% 20mm SuperioR MP

B72220P3321K101
TDK
1: $0.952
7,339In Stock

Mfr. Part No.
B72220P3321K101

Mouser Part No
871-B72220P3321K101

TDK

Varistors 320VAC 10% 20mm SuperioR MP

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Datasheet

7,339In Stock

$0.952

$0.864

$0.862

$0.858

$0.778

Min.: 1
Mult.: 1

Varistors 320VAC 10% 20mm SuperioR MP

B72220P3321K503
TDK
1: $3.78
3,159In Stock

Mfr. Part No.
B72220P3321K503

Mouser Part No
871-B72220P3321K503

TDK

Varistors 320VAC 10% 20mm SuperioR MP

Datasheet

3,159In Stock

$3.78

$2.37

$2.00

$1.69

View

Min.: 1
Mult.: 1

Varistors 140VAC 10% 20mm AdvanceD

B72220S2141K101
TDK
1: $1.28
15,441In Stock

Mfr. Part No.
B72220S2141K101

Mouser Part No
871-B72220S2141K101

TDK

Varistors 140VAC 10% 20mm AdvanceD

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Datasheet

15,441In Stock

$1.28

$0.842

$0.672

$0.658

View

Min.: 1
Mult.: 1

Varistors Leaded Disk Varistor 710pF, 680VAC, 895VDC

B72225S4681K101
TDK
1: $5.89
1,031In Stock

Mfr. Part No.
B72225S4681K101

Mouser Part No
871-B72225S4681K101

TDK

Varistors Leaded Disk Varistor 710pF, 680VAC, 895VDC

Datasheet

1,031In Stock

$5.89

$4.13

$3.73

$3.51

$3.24

Min.: 1
Mult.: 1

Varistors 1206 35Vrms 100A

B72520E0350K062
TDK
1: $0.775
27,227In Stock

Mfr. Part No.
B72520E0350K062

Mouser Part No
871-B72520E0350K062

TDK

Varistors 1206 35Vrms 100A

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Datasheet

27,227In Stock

Cut Tape

$0.775

$0.48

$0.437

$0.405

Reel

$0.336

View

MouseReel Available

Min.: 1
Mult.: 1

: 2,000

Varistors 1206 11V 200A 800pF

B72520T110K62
TDK
1: $1.60
9,417In Stock

Mfr. Part No.
B72520T110K62

Mouser Part No
871-B72520T110K62

TDK

Varistors 1206 11V 200A 800pF

Learn More

Datasheet

9,417In Stock

Cut Tape

$1.60

$0.70

$0.509

$0.465

Reel

$0.337

View

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

Varistors 1210 59VDC 3500pF 1500A

B72530U1450K062
TDK
1: $1.56
8,095In Stock

Mfr. Part No.
B72530U1450K062

Mouser Part No
871-B72530U1450K062

TDK

Varistors 1210 59VDC 3500pF 1500A

Learn More

Datasheet

8,095In Stock

Cut Tape

$1.56

$1.02

$0.898

$0.84

View

Reel

$0.665

MouseReel Available

Min.: 1
Mult.: 1

: 1,500

Varistors 1812 30Vrms 800A

B72580E0300K062
TDK
1: $2.15
16,247In Stock

Mfr. Part No.
B72580E0300K062

Mouser Part No
871-B72580E0300K062

TDK

Varistors 1812 30Vrms 800A

Learn More

Datasheet

16,247In Stock

Cut Tape

$2.15

$1.43

$1.08

$1.01

Reel

$0.726

View

MouseReel Available

Min.: 1
Mult.: 1

: 1,000

Varistors 50VAC 10% 3225mm

B72650M0500K072
TDK
1: $0.925
8,833In Stock

Mfr. Part No.
B72650M0500K072

Mouser Part No
871-B72650M0500K072

TDK

Varistors 50VAC 10% 3225mm

Learn More

Datasheet

8,833In Stock

Cut Tape

$0.925

$0.642

$0.581

$0.551

View

Reel

$0.46

MouseReel Available

Min.: 1
Mult.: 1

: 2,000

Varistors 0612 50V 30A 56pF

B72724D0200A062
TDK
1: $1.80
10,914In Stock

Mfr. Part No.
B72724D0200A062

Mouser Part No
871-B72724D200A62

TDK

Varistors 0612 50V 30A 56pF

Learn More

Datasheet

10,914In Stock

Cut Tape

$1.80

$1.09

$0.702

$0.642

Reel

$0.437

View

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

Circuit Breakers Cir Brkr Hyd Mag

IUGN11-35721-15
AIRPAX
1: $200.72
33In Stock

Mfr. Part No.
IUGN11-35721-15

Mouser Part No
874-IUGN113572115

AIRPAX

Circuit Breakers Cir Brkr Hyd Mag

Datasheet

33In Stock

$200.72

$175.30

$121.79

$107.05

View

Min.: 1
Mult.: 1

ESD Protection Diodes / TVS Diodes UNI UUSD EMI/ESD PROTECTION

ECLAMP2515K.TCT
Semtech
1: $1.75
2,814In Stock

Mfr. Part No.
ECLAMP2515K.TCT

Mouser Part No
947-ECLAMP2515K.TCT

Semtech

ESD Protection Diodes / TVS Diodes UNI UUSD EMI/ESD PROTECTION

Learn More

Datasheet

2,814In Stock

Cut Tape

$1.75

$1.28

$1.10

$0.906

Reel

$0.715

View

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

ESD Protection Diodes / TVS Diodes MARKETING PART NUMBER

RCLAMP0551P.TST
Semtech
1: $1.51
33,845In Stock

Mfr. Part No.
RCLAMP0551P.TST

Mouser Part No
947-RCLAMP0551P.TST

Semtech

ESD Protection Diodes / TVS Diodes MARKETING PART NUMBER

Learn More

Datasheet

33,845In Stock

Cut Tape

$1.51

$0.715

$0.588

$0.476

View

Reel

$0.302

MouseReel Available

Min.: 1
Mult.: 1

: 30,000

Circuit Protection

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