.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: 366,152

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; }

Download Table (.CSV)

Part #

ESD Protection Diodes / TVS Diodes TVS AXIAL HI-POWER

15KPA40A
Littelfuse
1: $13.87
1,632In Stock

Mfr. Part No.
15KPA40A

Mouser Part No
576-15KPA40A

Littelfuse

ESD Protection Diodes / TVS Diodes TVS AXIAL HI-POWER

Learn More

Datasheet

1,632In Stock

Cut Tape

$13.87

$9.97

$9.18

$7.51

Reel

$7.51

Quote

Min.: 1
Mult.: 1

: 800

ESD Protection Diodes / TVS Diodes TVS AXIAL HI-POWER

15KPA90A
Littelfuse
1: $14.59
616In Stock

Mfr. Part No.
15KPA90A

Mouser Part No
576-15KPA90A

Littelfuse

ESD Protection Diodes / TVS Diodes TVS AXIAL HI-POWER

Learn More

Datasheet

616In Stock

Cut Tape

$14.59

$12.46

$10.05

$7.51

Reel

$7.51

Quote

Min.: 1
Mult.: 1

: 800

Resettable Fuses - PPTC 6V POLYFUSE 1812 LoRho SL 2.60A

1812L260SLPR
Littelfuse
1: $2.35
2,799In Stock

Mfr. Part No.
1812L260SLPR

Mouser Part No
576-1812L260SLPR

Littelfuse

Resettable Fuses - PPTC 6V POLYFUSE 1812 LoRho SL 2.60A

Learn More

Datasheet

2,799In Stock

Cut Tape

$2.35

$2.16

$1.80

$1.66

View

Reel

$1.04

MouseReel Available

Min.: 1
Mult.: 1

: 2,000

ESD Protection Diodes / TVS Diodes TVS Hi-Power Diode

20KPA300A
Littelfuse
1: $25.07
739In Stock

Mfr. Part No.
20KPA300A

Mouser Part No
576-20KPA300A

Littelfuse

ESD Protection Diodes / TVS Diodes TVS Hi-Power Diode

Learn More

Datasheet

739In Stock

Cut Tape

$25.07

$17.82

$16.70

$13.66

Reel

$13.64

Min.: 1
Mult.: 1

: 800

ESD Protection Diodes / TVS Diodes 5KP100CA

5KP100CA
Littelfuse
1: $6.02
1,274In Stock

Mfr. Part No.
5KP100CA

Mouser Part No
576-5KP100CA

Littelfuse

ESD Protection Diodes / TVS Diodes 5KP100CA

Learn More

Datasheet

1,274In Stock

Cut Tape

$6.02

$3.62

$3.56

$3.35

Reel

$3.00

$2.93

Min.: 1
Mult.: 1

: 800

ESD Protection Diodes / TVS Diodes 6.5Vso 5VAC 447A

5KP6.5CA
Littelfuse
1: $2.50
1,842In Stock

Mfr. Part No.
5KP6.5CA

Mouser Part No
576-5KP6.5CA

Littelfuse

ESD Protection Diodes / TVS Diodes 6.5Vso 5VAC 447A

Learn More

Datasheet

1,842In Stock

Cut Tape

$2.50

$2.45

$2.42

$2.36

Reel

$1.94

$1.89

Min.: 1
Mult.: 1

: 800

NTC (Negative Temperature Coefficient) Thermistors NTC THERMISTOR 100K OHM 0.5C MELF

HM104J1A
Littelfuse
1: $2.89
5,413In Stock

Mfr. Part No.
HM104J1A

Mouser Part No
576-HM104J1A

Littelfuse

NTC (Negative Temperature Coefficient) Thermistors NTC THERMISTOR 100K OHM 0.5C MELF

Learn More

Datasheet

5,413In Stock

$2.89

$2.23

$1.86

$1.83

View

Min.: 1
Mult.: 1

Industrial & Electrical Fuses 400A 300VAC 125VDC Class T

JLLN400.X
Littelfuse
1: $128.61
108In Stock

Mfr. Part No.
JLLN400.X

Mouser Part No
576-JLLN400.X

Littelfuse

Industrial & Electrical Fuses 400A 300VAC 125VDC Class T

Learn More

Datasheet

108In Stock

$128.61

$104.33

Min.: 1
Mult.: 1

Triacs 600V 12A 50-50-50 mA

Q6012LH5TP
Littelfuse
1: $4.78
1,478In Stock

Mfr. Part No.
Q6012LH5TP

Mouser Part No
576-Q6012LH5TP

Littelfuse

Triacs 600V 12A 50-50-50 mA

Learn More

Datasheet

1,478In Stock

$4.78

$2.52

$2.29

Min.: 1
Mult.: 1

Triacs 600V 30A ALTNSTR ISO 50-50-50 mA TO220

Q6030LH5TP
Littelfuse
1: $5.63
3,738In Stock
3,000On Order

Mfr. Part No.
Q6030LH5TP

Mouser Part No
576-Q6030LH5TP

Littelfuse

Triacs 600V 30A ALTNSTR ISO 50-50-50 mA TO220

Datasheet

3,738In Stock

3,000On Order

$5.63

$4.23

$4.05

Min.: 1
Mult.: 1

Triacs 600V 35A 50-50-50mA

Q6035RH5TP
Littelfuse
1: $7.76
768In Stock

Mfr. Part No.
Q6035RH5TP

Mouser Part No
576-Q6035RH5TP

Littelfuse

Triacs 600V 35A 50-50-50mA

Datasheet

768In Stock

$7.76

$4.12

$3.92

Min.: 1
Mult.: 1

Triacs TRIAC TO220 800V 10A ALTERN

Q8010RH2TP
Littelfuse
1: $4.80
1,014In Stock

Mfr. Part No.
Q8010RH2TP

Mouser Part No
576-Q8010RH2TP

Littelfuse

Triacs TRIAC TO220 800V 10A ALTERN

Learn More

Datasheet

1,014In Stock

$4.80

$2.49

$2.25

$2.12

Min.: 1
Mult.: 1

Triacs 800V 25A

Q8025NH6RP
Littelfuse
1: $9.42
970In Stock

Mfr. Part No.
Q8025NH6RP

Mouser Part No
576-Q8025NH6RP

Littelfuse

Triacs 800V 25A

Learn More

Datasheet

970In Stock

Cut Tape

$9.42

$6.35

$4.65

Reel

$4.40

MouseReel Available

Min.: 1
Mult.: 1

: 500

Triacs 600V 25A 50mA HI TEMP TO-220AB Isolated

QJ6025LH5TP
Littelfuse
1: $8.18
918In Stock

Mfr. Part No.
QJ6025LH5TP

Mouser Part No
576-QJ6025LH5TP

Littelfuse

Triacs 600V 25A 50mA HI TEMP TO-220AB Isolated

Learn More

Datasheet

918In Stock

$8.18

$4.18

Min.: 1
Mult.: 1

SCRs 55A 800V

S8055NRP
Littelfuse
1: $8.52
741In Stock

Mfr. Part No.
S8055NRP

Mouser Part No
576-S8055NRP

Littelfuse

SCRs 55A 800V

Datasheet

741In Stock

Cut Tape

$8.52

$5.75

$4.43

Reel

$4.43

MouseReel Available

Min.: 1
Mult.: 1

: 500

ESD Protection Diodes / TVS Diodes 0.3V 3A 0.2pF 12kV WLCSP0201 Bi-dir TVS

SP00R6-01WTG
Littelfuse
1: $1.49
13,153In Stock

Mfr. Part No.
SP00R6-01WTG

Mouser Part No
576-SP00R6-01WTG

Littelfuse

ESD Protection Diodes / TVS Diodes 0.3V 3A 0.2pF 12kV WLCSP0201 Bi-dir TVS

Learn More

Datasheet

13,153In Stock

Cut Tape

$1.49

$0.931

$0.609

$0.47

View

Reel

$0.347

MouseReel Available

Min.: 1
Mult.: 1

: 10,000

ESD Protection Diodes / TVS Diodes 12V 100W

SP12-01WTG-C-HV
Littelfuse
1: $0.472
123,768In Stock

Mfr. Part No.
SP12-01WTG-C-HV

Mouser Part No
576-SP12-01WTG-C-HV

Littelfuse

ESD Protection Diodes / TVS Diodes 12V 100W

Learn More

Datasheet

123,768In Stock

Cut Tape

$0.472

$0.247

$0.106

$0.10

View

Reel

$0.067

MouseReel Available

Min.: 1
Mult.: 1

: 10,000

ESD Protection Diodes / TVS Diodes 1.5kW 43V AEC-Q101 5% Uni-Directional

TPSMC43A
Littelfuse
1: $0.686
7,516In Stock

Mfr. Part No.
TPSMC43A

Mouser Part No
576-TPSMC43A

Littelfuse

ESD Protection Diodes / TVS Diodes 1.5kW 43V AEC-Q101 5% Uni-Directional

Learn More

Datasheet

7,516In Stock

Cut Tape

$0.686

$0.664

$0.652

$0.535

Reel

$0.406

View

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

ESD Protection Diodes / TVS Diodes 3kW 24V AEC-Q101 5% Uni-Directional

TPSMD24A
Littelfuse
1: $1.32
4,709In Stock
3,000On Order

Mfr. Part No.
TPSMD24A

Mouser Part No
576-TPSMD24A

Littelfuse

ESD Protection Diodes / TVS Diodes 3kW 24V AEC-Q101 5% Uni-Directional

Learn More

Datasheet

4,709In Stock

3,000On Order

Cut Tape

$1.32

$1.21

$0.994

$0.779

Reel

$0.568

View

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

Board Mount Surge Protectors Overvoltage Prot Cntr

LTC4360CSC8-2#TRMPBF
Analog Devices
1: $5.79
666In Stock

Mfr. Part No.
LTC4360CSC8-2#TRMPBF

Mouser Part No
584-C4360CSC8-2TMPF

Analog Devices

Board Mount Surge Protectors Overvoltage Prot Cntr

Datasheet

666In Stock

Cut Tape

$5.79

$4.39

$4.03

$3.93

Reel

$3.20

View

MouseReel Available

Min.: 1
Mult.: 1

: 500

Board Mount Surge Protectors Hi V Surge Stopper w/ C Lim

LT4363CMS-2#PBF
Analog Devices
1: $11.41
1,525In Stock
1,665On Order

Mfr. Part No.
LT4363CMS-2#PBF

Mouser Part No
584-LT4363CMS-2#PBF

Analog Devices

Board Mount Surge Protectors Hi V Surge Stopper w/ C Lim

Datasheet

1,525In Stock

1,665On Order

$11.41

$8.85

$7.98

$7.97

View

Min.: 1
Mult.: 1

NTC (Negative Temperature Coefficient) Thermistors 2Kohms Special Tol Special Tol

NTCLE203E3202SB0
Vishay / BC Components
1: $1.37
3,465In Stock

Mfr. Part No.
NTCLE203E3202SB0

Mouser Part No
594-NTCLE203E3202SB0

Vishay / BC Components

NTC (Negative Temperature Coefficient) Thermistors 2Kohms Special Tol Special Tol

Learn More

Datasheet

3,465In Stock

$1.37

$1.30

$1.21

$1.16

View

Min.: 1
Mult.: 1

NTC (Negative Temperature Coefficient) Thermistors 4.7Kohms 3%

NTCLE400E3472H
Vishay / BC Components
1: $2.43
2,473In Stock

Mfr. Part No.
NTCLE400E3472H

Mouser Part No
594-NTCLE400E3472H

Vishay / BC Components

NTC (Negative Temperature Coefficient) Thermistors 4.7Kohms 3%

Datasheet

2,473In Stock

$2.43

$2.36

$2.26

$2.19

View

Min.: 1
Mult.: 1

NTC (Negative Temperature Coefficient) Thermistors 4.7Kohms 3% SMD

NTCS0603E3472HHT
Vishay / BC Components
1: $0.343
11,860In Stock

Mfr. Part No.
NTCS0603E3472HHT

Mouser Part No
594-NTCS0603E3472HHT

Vishay / BC Components

NTC (Negative Temperature Coefficient) Thermistors 4.7Kohms 3% SMD

Learn More

Datasheet

11,860In Stock

Cut Tape

$0.343

$0.316

$0.285

$0.269

$0.267

Reel

$0.266

MouseReel Available

Min.: 1
Mult.: 1

: 4,000

NTC (Negative Temperature Coefficient) Thermistors 47Kohms 5% SMD

NTCS0603E3473JHT
Vishay / BC Components
1: $0.472
10,111In Stock

Mfr. Part No.
NTCS0603E3473JHT

Mouser Part No
594-NTCS0603E3473JHT

Vishay / BC Components

NTC (Negative Temperature Coefficient) Thermistors 47Kohms 5% SMD

Learn More

Datasheet

10,111In Stock

Cut Tape

$0.472

$0.442

$0.39

$0.325

Reel

$0.283

View

MouseReel Available

Min.: 1
Mult.: 1

: 4,000

Circuit Protection

Types of Circuit Protection

Customer Service Office

Company

Resources

Support