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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: 365,613

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Download Table (.CSV)

Part #

ESD Protection Diodes / TVS Diodes 600W 400V 5% Uni-Directional

SMBJ400A
Littelfuse
1: $0.529
23,201In Stock

Mfr. Part No.
SMBJ400A

Mouser Part No
576-SMBJ400A

Littelfuse

ESD Protection Diodes / TVS Diodes 600W 400V 5% Uni-Directional

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Datasheet

23,201In Stock

Cut Tape

$0.529

$0.378

$0.269

$0.267

Reel

$0.247

$0.242

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

ESD Protection Diodes / TVS Diodes 6 CH DIODE ARRAY

SP723APP
Littelfuse
1: $4.26
1,400In Stock

Mfr. Part No.
SP723APP

Mouser Part No
576-SP723APP

Littelfuse

ESD Protection Diodes / TVS Diodes 6 CH DIODE ARRAY

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Datasheet

1,400In Stock

$4.26

$2.43

$2.42

$2.27

View

Min.: 1
Mult.: 1

SCRs SCR TO263 600V 50A HJ TEMP

SV6050NA2RP
Littelfuse
1: $12.21
814In Stock

Mfr. Part No.
SV6050NA2RP

Mouser Part No
576-SV6050NA2RP

Littelfuse

SCRs SCR TO263 600V 50A HJ TEMP

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Datasheet

814In Stock

Cut Tape

$12.21

$8.67

$6.98

Reel

$6.62

MouseReel Available

Min.: 1
Mult.: 1

: 500

ESD Protection Diodes / TVS Diodes 24V 5kW BI-DIR TP5KP AEC-Q101

TP5KP24CA
Littelfuse
1: $3.35
1,459In Stock

Mfr. Part No.
TP5KP24CA

Mouser Part No
576-TP5KP24CA

Littelfuse

ESD Protection Diodes / TVS Diodes 24V 5kW BI-DIR TP5KP AEC-Q101

Learn More

Datasheet

1,459In Stock

Cut Tape

$3.35

$2.57

$1.99

$1.79

Reel

$1.43

$1.34

Min.: 1
Mult.: 1

: 800

ESD Protection Diodes / TVS Diodes 3kW 28V AEC-Q101 5% Uni-Directional

TPSMD28A
Littelfuse
1: $2.22
7,734In Stock

Mfr. Part No.
TPSMD28A

Mouser Part No
576-TPSMD28A

Littelfuse

ESD Protection Diodes / TVS Diodes 3kW 28V AEC-Q101 5% Uni-Directional

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Datasheet

7,734In Stock

Cut Tape

$2.22

$1.33

$0.931

$0.731

Reel

$0.526

View

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

Board Mount Surge Protectors Overvoltage, Undervoltage & Reverse S Pr

LTC4365HTS8#WTRPBF
Analog Devices
1: $9.60
1,178In Stock

Mfr. Part No.
LTC4365HTS8#WTRPBF

Mouser Part No
584-4365HTS8#WTRPBF

Analog Devices

Board Mount Surge Protectors Overvoltage, Undervoltage & Reverse S Pr

Datasheet

1,178In Stock

Cut Tape

$9.60

$7.39

$6.84

$6.79

View

Reel

$5.45

MouseReel Available

Min.: 1
Mult.: 1

: 2,500

Board Mount Surge Protectors 140V High Efficiency Sw. Surge Stopper

LTC7862IFE#PBF
Analog Devices
1: $16.17
649In Stock

Mfr. Part No.
LTC7862IFE#PBF

Mouser Part No
584-7862IFEPB

Analog Devices

Board Mount Surge Protectors 140V High Efficiency Sw. Surge Stopper

Datasheet

649In Stock

$16.17

$12.24

$11.78

$11.04

View

Min.: 1
Mult.: 1

Board Mount Surge Protectors Overvoltage/Overcurrent Prot Cntr

LTC4361IDC-2#TRMPBF
Analog Devices
1: $8.09
1,627In Stock

Mfr. Part No.
LTC4361IDC-2#TRMPBF

Mouser Part No
584-C4361IDC-2TRMPBF

Analog Devices

Board Mount Surge Protectors Overvoltage/Overcurrent Prot Cntr

Datasheet

1,627In Stock

Cut Tape

$8.09

$6.19

$5.72

$5.69

Reel

$4.58

View

MouseReel Available

Min.: 1
Mult.: 1

: 500

Board Mount Surge Protectors Hi V Surge Stopper

LTC4366CTS8-2#TRMPBF
Analog Devices
1: $12.08
915In Stock
500On Order

Mfr. Part No.
LTC4366CTS8-2#TRMPBF

Mouser Part No
584-C4366CTS8-2TMPF

Analog Devices

Board Mount Surge Protectors Hi V Surge Stopper

Datasheet

915In Stock

500On Order

Cut Tape

$12.08

$9.38

$8.69

$8.01

Reel

$7.38

$7.11

MouseReel Available

Min.: 1
Mult.: 1

: 500

Board Mount Surge Protectors L Q C Surge Stopper

LTC4380IMS-4#PBF
Analog Devices
1: $12.88
1,791In Stock

Mfr. Part No.
LTC4380IMS-4#PBF

Mouser Part No
584-LTC4380IMS-4#PBF

Analog Devices

Board Mount Surge Protectors L Q C Surge Stopper

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Datasheet

1,791In Stock

More Info Available

$12.88

$10.01

$9.94

$8.78

View

Min.: 1
Mult.: 1

Varistors 275vRMS 350DCv MOV

VDRS10P275BSE
Vishay / BC Components
1: $0.758
7,616In Stock
8,000On Order

Mfr. Part No.
VDRS10P275BSE

Mouser Part No
594-2381-594-52716

Vishay / BC Components

Varistors 275vRMS 350DCv MOV

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Datasheet

7,616In Stock

8,000On Order

$0.758

$0.475

$0.413

$0.412

View

Min.: 1
Mult.: 1

Varistors 1206 40volts 56A 61.0V to 77.0V

MLV1206E34003T
Vishay / BC Components
1: $0.829
8,670In Stock

Mfr. Part No.
MLV1206E34003T

Mouser Part No
594-MLV1206E34003T

Vishay / BC Components

Varistors 1206 40volts 56A 61.0V to 77.0V

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Datasheet

8,670In Stock

Cut Tape

$0.829

$0.522

$0.46

$0.428

Reel

$0.355

View

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

NTC (Negative Temperature Coefficient) Thermistors 10K 1% 80MM AWG24

NTCALUG01A103F800
Vishay / BC Components
1: $7.99
929In Stock

Mfr. Part No.
NTCALUG01A103F800

Mouser Part No
594-NTALUG01A103F800

Vishay / BC Components

NTC (Negative Temperature Coefficient) Thermistors 10K 1% 80MM AWG24

Learn More

Datasheet

929In Stock

$7.99

$7.19

$6.89

$6.54

View

Min.: 1
Mult.: 1

NTC (Negative Temperature Coefficient) Thermistors NTC 47Kohms 3%

NTCS0402E3473HXT
Vishay / BC Components
1: $0.529
12,325In Stock

Mfr. Part No.
NTCS0402E3473HXT

Mouser Part No
594-NTCS0402E3473HXT

Vishay / BC Components

NTC (Negative Temperature Coefficient) Thermistors NTC 47Kohms 3%

Learn More

Datasheet

12,325In Stock

Cut Tape

$0.529

$0.452

$0.406

$0.368

View

Reel

$0.29

MouseReel Available

Min.: 1
Mult.: 1

: 10,000

NTC (Negative Temperature Coefficient) Thermistors 100Kohms 2% SMD

NTCS0805E3104GXT
Vishay / BC Components
1: $0.872
7,104In Stock
4,000On Order

Mfr. Part No.
NTCS0805E3104GXT

Mouser Part No
594-NTCS0805E3104GXT

Vishay / BC Components

NTC (Negative Temperature Coefficient) Thermistors 100Kohms 2% SMD

Learn More

Datasheet

7,104In Stock

4,000On Order

Cut Tape

$0.872

$0.821

$0.766

$0.729

View

Reel

$0.47

MouseReel Available

Min.: 1
Mult.: 1

: 4,000

NTC (Negative Temperature Coefficient) Thermistors 2.2Kohms 2% SMD

NTCS0805E3222GMT
Vishay / BC Components
1: $0.872
7,075In Stock

Mfr. Part No.
NTCS0805E3222GMT

Mouser Part No
594-NTCS0805E3222GMT

Vishay / BC Components

NTC (Negative Temperature Coefficient) Thermistors 2.2Kohms 2% SMD

Learn More

Datasheet

7,075In Stock

Cut Tape

$0.872

$0.821

$0.766

$0.731

View

Reel

$0.528

MouseReel Available

Min.: 1
Mult.: 1

: 4,000

ESD Protection Diodes / TVS Diodes 5W 27V +/-3V AEC-Q101 Qualified

SM5A27HE3/2D
Vishay Semiconductors
1: $3.69
1,137In Stock

Mfr. Part No.
SM5A27HE3/2D

Mouser Part No
625-SM5A27HE3

Vishay Semiconductors

ESD Protection Diodes / TVS Diodes 5W 27V +/-3V AEC-Q101 Qualified

Learn More

Datasheet

1,137In Stock

Cut Tape

$3.69

$2.80

$2.29

Reel

$2.29

MouseReel Available

Min.: 1
Mult.: 1

: 750

Circuit Breakers CBMC E4 24DC/1-4A S-R

1065727
Phoenix Contact
1: $166.29
45In Stock

Mfr. Part No.
1065727

Mouser Part No
651-1065727

Phoenix Contact

Circuit Breakers CBMC E4 24DC/1-4A S-R

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Datasheet

45In Stock

$166.29

Min.: 1
Mult.: 1

Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 2-Pole 150V FLAT Horizontal

2017-15-SMH-RPLF
Bourns
1: $3.59
2,193In Stock

Mfr. Part No.
2017-15-SMH-RPLF

Mouser Part No
652-2017-15-SMH-RPLF

Bourns

Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 2-Pole 150V FLAT Horizontal

Learn More

Datasheet

2,193In Stock

Cut Tape

$3.59

$3.30

$2.75

$2.53

Reel

$1.77

View

MouseReel Available

Min.: 1
Mult.: 1

: 2,000

Gas Discharge Tubes - GDTs / Gas Plasma Arrestors GAS DISCHARGE TUBE MINI 3POLE 420VOLT

2036-42-SM-RPLF
Bourns
1: $3.52
1,741In Stock

Mfr. Part No.
2036-42-SM-RPLF

Mouser Part No
652-2036-42-SM-RPLF

Bourns

Gas Discharge Tubes - GDTs / Gas Plasma Arrestors GAS DISCHARGE TUBE MINI 3POLE 420VOLT

Datasheet

1,741In Stock

Cut Tape

$3.52

$3.07

$2.47

$2.10

Reel

$1.46

View

MouseReel Available

Min.: 1
Mult.: 1

: 1,000

ESD Protection Diodes / TVS Diodes DIO TVS VWM 75V 5kW BIDIR SMC AECQ

5.0SMDJ75CA-QH
Bourns
1: $5.46
1,331In Stock

Mfr. Part No.
5.0SMDJ75CA-QH

Mouser Part No
652-5.0SMDJ75CA-QH

Bourns

ESD Protection Diodes / TVS Diodes DIO TVS VWM 75V 5kW BIDIR SMC AECQ

Learn More

Datasheet

1,331In Stock

Cut Tape

$5.46

$3.58

$2.79

Reel

$2.35

$1.99

$1.89

MouseReel Available

Min.: 1
Mult.: 1

: 500

Varistors AV AUTO SERIES 14V

AV14K1210401NIR1
Bourns
1: $1.03
12,368In Stock

Mfr. Part No.
AV14K1210401NIR1

Mouser Part No
652-AV14K1210401NIR1

Bourns

Varistors AV AUTO SERIES 14V

Learn More

Datasheet

12,368In Stock

Cut Tape

$1.03

$0.626

$0.475

$0.425

Reel

$0.293

View

MouseReel Available

Min.: 1
Mult.: 1

: 2,500

Varistors AVHT AUTO SERIES 17V

AV17K1812801NIR1HT
Bourns
1: $2.07
6,582In Stock

Mfr. Part No.
AV17K1812801NIR1HT

Mouser Part No
652-AV17K1812801NI1H

Bourns

Varistors AVHT AUTO SERIES 17V

Learn More

Datasheet

6,582In Stock

Cut Tape

$2.07

$1.27

$0.841

$0.787

Reel

$0.581

View

MouseReel Available

Min.: 1
Mult.: 1

: 1,000

Varistors AVHT AUTO SERIES 20V

AV20K1210401NIR1HT
Bourns
1: $1.33
13,724In Stock

Mfr. Part No.
AV20K1210401NIR1HT

Mouser Part No
652-AV20K1210401NI1H

Bourns

Varistors AVHT AUTO SERIES 20V

Learn More

Datasheet

13,724In Stock

Cut Tape

$1.33

$0.801

$0.512

$0.476

Reel

$0.306

View

MouseReel Available

Min.: 1
Mult.: 1

: 2,500

Resettable Fuses - PPTC 30V 1.35A-HD 40A MAX

MF-R135-2
Bourns
1: $0.801
10,990In Stock

Mfr. Part No.
MF-R135-2

Mouser Part No
652-MF-R135-2

Bourns

Resettable Fuses - PPTC 30V 1.35A-HD 40A MAX

Learn More

Datasheet

10,990In Stock

Cut Tape

$0.801

$0.588

$0.551

$0.416

Reel

$0.315

View

Min.: 1
Mult.: 1

: 3,000

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