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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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Part #

Varistors 50VAC 10% 10mm StandarD

B72210S0500K101
TDK
1: $0.558
10,920In Stock

Mfr. Part No.
B72210S0500K101

Mouser Part No
871-B72210S500K101

TDK

Varistors 50VAC 10% 10mm StandarD

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Datasheet

10,920In Stock

$0.558

$0.345

$0.298

$0.276

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Min.: 1
Mult.: 1

Varistors 250VAC 10% 14mm StandarD

B72214S0251K101
TDK
1: $0.422
14,102In Stock

Mfr. Part No.
B72214S0251K101

Mouser Part No
871-B72214S251K101

TDK

Varistors 250VAC 10% 14mm StandarD

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Datasheet

14,102In Stock

$0.422

$0.267

$0.216

$0.215

Min.: 1
Mult.: 1

Varistors 300VAC 10% 14mm AdvanceD Thermofused

B72214T2301K105
TDK
1: $3.82
2,121In Stock

Mfr. Part No.
B72214T2301K105

Mouser Part No
871-B72214T2301K105

TDK

Varistors 300VAC 10% 14mm AdvanceD Thermofused

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Datasheet

2,121In Stock

$3.82

$2.41

$2.14

$1.82

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Min.: 1
Mult.: 1

Varistors 25VAC 10% 20mm AEC-Q200

B72220S1250K102
TDK
1: $5.43
1,807In Stock

Mfr. Part No.
B72220S1250K102

Mouser Part No
871-B72220S1250K102

TDK

Varistors 25VAC 10% 20mm AEC-Q200

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Datasheet

1,807In Stock

$5.43

$3.48

$3.13

$2.72

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Min.: 1
Mult.: 1

Varistors 60VAC 10% 20mm StandarD

B72220S0600K101
TDK
1: $1.20
5,454In Stock

Mfr. Part No.
B72220S0600K101

Mouser Part No
871-B72220S600K101

TDK

Varistors 60VAC 10% 20mm StandarD

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Datasheet

5,454In Stock

$1.20

$0.809

$0.713

$0.666

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Min.: 1
Mult.: 1

Varistors 95VAC 10% 20mm StandarD

B72220S0950K101
TDK
1: $1.25
6,630In Stock
4,500Expected 8/10/2026

Mfr. Part No.
B72220S0950K101

Mouser Part No
871-B72220S950K101

TDK

Varistors 95VAC 10% 20mm StandarD

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Datasheet

6,630In Stock

4,500Expected 8/10/2026

$1.25

$0.809

$0.713

$0.666

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Min.: 1
Mult.: 1

Varistors 550VAC 10% 40mm High E

B72240L0551K102
TDK
1: $25.42
250In Stock

Mfr. Part No.
B72240L0551K102

Mouser Part No
871-B72240L0551K102

TDK

Varistors 550VAC 10% 40mm High E

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Datasheet

250In Stock

$25.42

$20.22

$18.55

$17.76

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Min.: 1
Mult.: 1

Varistors 10mm, 680Vac, 10%, Compact Series

B72310S0681K101
TDK
1: $0.816
8,131In Stock

Mfr. Part No.
B72310S0681K101

Mouser Part No
871-B72310S0681K101

TDK

Varistors 10mm, 680Vac, 10%, Compact Series

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Datasheet

8,131In Stock

$0.816

$0.522

$0.456

$0.419

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Min.: 1
Mult.: 1

Varistors 14mm, 350Vac, 10%, AdvanceD Compact Series

B72314S2351K101
TDK
1: $0.626
7,525In Stock

Mfr. Part No.
B72314S2351K101

Mouser Part No
871-B72314S2351K101

TDK

Varistors 14mm, 350Vac, 10%, AdvanceD Compact Series

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Datasheet

7,525In Stock

$0.626

$0.396

$0.344

$0.309

View

Min.: 1
Mult.: 1

Varistors 0603 4.0V 30A

B72500T0040M060
TDK
1: $0.326
54,686In Stock

Mfr. Part No.
B72500T0040M060

Mouser Part No
871-B72500T40M60

TDK

Varistors 0603 4.0V 30A

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Datasheet

54,686In Stock

Cut Tape

$0.326

$0.199

$0.17

$0.156

Reel

$0.125

View

MouseReel Available

Min.: 1
Mult.: 1

: 4,000

Varistors 20Vrms 80A

B72510E0200K062
TDK
1: $0.694
24,139In Stock

Mfr. Part No.
B72510E0200K062

Mouser Part No
871-B72510E0200K062

TDK

Varistors 20Vrms 80A

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Datasheet

24,139In Stock

Cut Tape

$0.694

$0.431

$0.375

$0.348

Reel

$0.301

View

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

Varistors 1210 58VDC 2000pF 1000A

B72530T6400K062
TDK
1: $1.50
5,834In Stock

Mfr. Part No.
B72530T6400K062

Mouser Part No
871-B72530T6400K062

TDK

Varistors 1210 58VDC 2000pF 1000A

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Datasheet

5,834In Stock

Cut Tape

$1.50

$0.971

$0.857

$0.801

Reel

$0.681

View

MouseReel Available

Min.: 1
Mult.: 1

: 1,500

Gas Discharge Tubes - GDTs / Gas Plasma Arrestors EM90X

B88069X0190S102
TDK
1: $1.89
1,850In Stock

Mfr. Part No.
B88069X0190S102

Mouser Part No
871-B88069X190S102

TDK

Gas Discharge Tubes - GDTs / Gas Plasma Arrestors EM90X

Datasheet

1,850In Stock

$1.89

$1.44

$1.35

Reel

$1.28

$1.16

View

Min.: 1
Mult.: 1

: 100

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

B88069X2190T502
TDK
1: $3.26
1,633In Stock

Mfr. Part No.
B88069X2190T502

Mouser Part No
871-B88069X2190T502

TDK

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

Datasheet

1,633In Stock

Cut Tape

$3.26

$3.01

$2.50

$2.31

Reel

$1.81

View

Min.: 1
Mult.: 1

: 500

Circuit Breakers Cir Brkr Hyd Mag

IAGN66-1-72-30.0
AIRPAX
1: $187.54
25In Stock

Mfr. Part No.
IAGN66-1-72-30.0

Mouser Part No
874-IAGN6617230

AIRPAX

Circuit Breakers Cir Brkr Hyd Mag

Datasheet

25In Stock

$187.54

$170.64

$118.63

Quote

Min.: 1
Mult.: 1

Circuit Breakers CIRCUIT BREAKER

PP21-2-5.00A-OB-V
AIRPAX
1: $58.25
34In Stock

Mfr. Part No.
PP21-2-5.00A-OB-V

Mouser Part No
874-PP21-2-500A-OB-V

AIRPAX

Circuit Breakers CIRCUIT BREAKER

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Datasheet

34In Stock

$58.25

$53.05

$53.03

$51.19

View

Min.: 1
Mult.: 1

ESD Protection Diodes / TVS Diodes 1-Line Femto Farad RailClamp w/ EOS

RClamp3361Z.TFT
Semtech
1: $0.857
14,989In Stock

Mfr. Part No.
RClamp3361Z.TFT

Mouser Part No
947-RCLAMP3361Z.TFT

Semtech

ESD Protection Diodes / TVS Diodes 1-Line Femto Farad RailClamp w/ EOS

Learn More

14,989In Stock

Cut Tape

$0.857

$0.613

$0.491

$0.413

View

Reel

$0.257

MouseReel Available

Min.: 1
Mult.: 1

: 15,000

Circuit Breakers MAN-START 600VAC 40AMP IEC

GV3P25
Schneider Electric
1: $509.39
6In Stock

Mfr. Part No.
GV3P25

Mouser Part No
996-GV3P25

Schneider Electric

Circuit Breakers MAN-START 600VAC 40AMP IEC

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Datasheet

6In Stock

$509.39

Min.: 1
Mult.: 1

Industrial Surge Protectors Eaton DIN Rail Surge, 480 Vac rating, th

470-0405-AG
Eaton
1: $487.27
1In Stock

Mfr. Part No.
470-0405-AG

Mouser Part No
545-470-0405-AG

Eaton

Industrial Surge Protectors Eaton DIN Rail Surge, 480 Vac rating, th

1In Stock

$487.27

$466.66

Min.: 1
Mult.: 1

Fuse Holder Accessories ZCase Box Cover

873-716
Littelfuse
1: $9.34
94In Stock

Mfr. Part No.
873-716

Mouser Part No
576-873-716

Littelfuse

Fuse Holder Accessories ZCase Box Cover

94In Stock

$9.34

$8.61

$8.28

$6.38

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Min.: 1
Mult.: 1

Gas Discharge Tubes - GDTs / Gas Plasma Arrestors NextGen HV GDT 8 mm 1300 V

GDT28H-130-B
Bourns
1: $3.13
397In Stock

Mfr. Part No.
GDT28H-130-B

Mouser Part No
652-GDT28H-130-B

Bourns

Gas Discharge Tubes - GDTs / Gas Plasma Arrestors NextGen HV GDT 8 mm 1300 V

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Datasheet

397In Stock

$3.13

$2.56

$2.05

$1.84

View

Min.: 1
Mult.: 1

Gas Discharge Tubes - GDTs / Gas Plasma Arrestors NextGen HV GDT 8 mm 3300 V

GDT28H-330-B
Bourns
1: $3.13
397In Stock

Mfr. Part No.
GDT28H-330-B

Mouser Part No
652-GDT28H-330-B

Bourns

Gas Discharge Tubes - GDTs / Gas Plasma Arrestors NextGen HV GDT 8 mm 3300 V

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Datasheet

397In Stock

$3.13

$2.56

$2.05

$1.84

View

Min.: 1
Mult.: 1

ESD Protection Diodes / TVS Diodes 600W,12V 5%, DFN3820A BIDIR TVS

6DFN12CA-M3/H
Vishay
1: $1.03
4,163In Stock
New At Mouser

Mfr. Part No.
6DFN12CA-M3/H

Mouser Part No
78-6DFN12CA-M3/H

New At Mouser

Vishay

ESD Protection Diodes / TVS Diodes 600W,12V 5%, DFN3820A BIDIR TVS

Datasheet

4,163In Stock

Cut Tape

$1.03

$0.643

$0.415

$0.316

Reel

$0.243

View

Min.: 1
Mult.: 1

: 3,500

ESD Protection Diodes / TVS Diodes 600W,36V 5%,BIDIR,SMB TVS

P6SMB36CAHE3_B/H
Vishay Semiconductors
1: $1.37
6,158In Stock

Mfr. Part No.
P6SMB36CAHE3_B/H

Mouser Part No
78-P6SMB36CAHE3BH

Vishay Semiconductors

ESD Protection Diodes / TVS Diodes 600W,36V 5%,BIDIR,SMB TVS

Learn More

Datasheet

6,158In Stock

Cut Tape

$1.37

$0.855

$0.56

$0.432

Reel

$0.39

View

Min.: 1
Mult.: 1

: 750

ESD Protection Diodes / TVS Diodes 1KW,30V 5%,UNIDIR,SMB TVS

SMB10J30AHE3_B/I
Vishay Semiconductors
1: $1.69
2,580In Stock

Mfr. Part No.
SMB10J30AHE3_B/I

Mouser Part No
78-SMB10J30AHE3BI

Vishay Semiconductors

ESD Protection Diodes / TVS Diodes 1KW,30V 5%,UNIDIR,SMB TVS

Learn More

Datasheet

2,580In Stock

Cut Tape

$1.69

$1.05

$0.687

$0.532

Reel

$0.418

View

Min.: 1
Mult.: 1

: 3,200

Circuit Protection

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