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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: 359,447

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Part #

Fuses with Leads - Through Hole FUSE, CERAMIC TUBE 4A, 600VAC/600VDC

0ADAP4000-RE
Bel Fuse
1: $4.94
1,306In Stock

Mfr. Part #
0ADAP4000-RE

Mouser Part #
530-0ADAP4000-RE

Bel Fuse

Fuses with Leads - Through Hole FUSE, CERAMIC TUBE 4A, 600VAC/600VDC

Datasheet

1,306In Stock

$4.94

$4.56

$3.78

$3.50

View

Min.: 1
Mult.: 1

Cartridge Fuses 250V 4A 3.6X10 FA PT PB-FREE

0874004.MXEP
Littelfuse
1: $3.81
1,214In Stock

Mfr. Part #
0874004.MXEP

Mouser Part #
576-0874004.MXEP

Littelfuse

Cartridge Fuses 250V 4A 3.6X10 FA PT PB-FREE

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Datasheet

1,214In Stock

$3.81

$3.16

$2.91

$2.42

View

Min.: 1
Mult.: 1

Cartridge Fuses 250V 1A 3.6X10 FA PT PB-FREE

0875001.MRET1P
Littelfuse
1: $4.59
1,981In Stock

Mfr. Part #
0875001.MRET1P

Mouser Part #
576-0875001.MRET1P

Littelfuse

Cartridge Fuses 250V 1A 3.6X10 FA PT PB-FREE

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Datasheet

1,981In Stock

Cut Tape

$4.59

$4.19

$4.03

$3.17

View

Reel

$1.98

Min.: 1
Mult.: 1

: 1,000

Fuse Holder MINI Blade

0FHM0001HXGLO
Littelfuse
1: $12.62
400In Stock

Mfr. Part #
0FHM0001HXGLO

Mouser Part #
576-0FHM0001HXGLO

Littelfuse

Fuse Holder MINI Blade

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Datasheet

400In Stock

$12.62

$10.48

$9.41

$8.02

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Min.: 1
Mult.: 1

Industrial & Electrical Fuses 1000VDC 1AMP Midget

0SPF001.H
Littelfuse
1: $25.19
156In Stock

Mfr. Part #
0SPF001.H

Mouser Part #
576-0SPF001.H

Littelfuse

Industrial & Electrical Fuses 1000VDC 1AMP Midget

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Datasheet

156In Stock

$25.19

$22.76

$20.62

$17.63

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Min.: 1
Mult.: 1

ESD Protection Diodes / TVS Diodes TVS Hi-Power Diode

20KPA300A
Littelfuse
1: $23.27
679In Stock

Mfr. Part #
20KPA300A

Mouser Part #
576-20KPA300A

Littelfuse

ESD Protection Diodes / TVS Diodes TVS Hi-Power Diode

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Datasheet

679In Stock

Cut Tape

$23.27

$15.95

$14.94

Reel

$13.01

Min.: 1
Mult.: 1

: 800

ESD Protection Diodes / TVS Diodes TVS Hi Power Diode 30KPA Axial

30KPA198CA
Littelfuse
1: $37.26
582In Stock

Mfr. Part #
30KPA198CA

Mouser Part #
576-30KPA198CA

Littelfuse

ESD Protection Diodes / TVS Diodes TVS Hi Power Diode 30KPA Axial

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Datasheet

582In Stock

Cut Tape

$37.26

$27.82

$27.79

$22.76

Reel

$22.74

Min.: 1
Mult.: 1

: 800

ESD Protection Diodes / TVS Diodes TVS Hi-Power Diode Axial

30KPA90CA-B
Littelfuse
1: $23.83
175In Stock

Mfr. Part #
30KPA90CA-B

Mouser Part #
576-30KPA90CA-B

Littelfuse

ESD Protection Diodes / TVS Diodes TVS Hi-Power Diode Axial

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Datasheet

175In Stock

$23.83

$17.51

$17.50

Min.: 1
Mult.: 1

NTC Thermistors NTC THERMISTOR 100K OHM 0.5C MELF

HM104J1A
Littelfuse
1: $2.63
5,264In Stock

Mfr. Part #
HM104J1A

Mouser Part #
576-HM104J1A

Littelfuse

NTC Thermistors NTC THERMISTOR 100K OHM 0.5C MELF

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Datasheet

5,264In Stock

$2.63

$2.03

$1.69

$1.66

View

Min.: 1
Mult.: 1

Industrial & Electrical Fuses .3A 600VAC 300VDC Slo-Blo

KLDR.300TXP
Littelfuse
1: $59.85
71In Stock

Mfr. Part #
KLDR.300TXP

Mouser Part #
576-KLDR.300TXP

Littelfuse

Industrial & Electrical Fuses .3A 600VAC 300VDC Slo-Blo

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Datasheet

71In Stock

$59.85

$49.66

$42.08

$37.92

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Min.: 1
Mult.: 1

Industrial & Electrical Fuses 350A 500VAC 500VDC FF L50QS POWR-SPEED

L50QS350.V
Littelfuse
1: $203.44
60In Stock

Mfr. Part #
L50QS350.V

Mouser Part #
576-L50QS350.V

Littelfuse

Industrial & Electrical Fuses 350A 500VAC 500VDC FF L50QS POWR-SPEED

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Datasheet

60In Stock

$203.44

$173.17

$162.89

$135.34

$118.37

Min.: 1
Mult.: 1

Triacs 400V 6A 25-25-25mA

Q4006L4TP
Littelfuse
1: $3.91
1,472In Stock

Mfr. Part #
Q4006L4TP

Mouser Part #
576-Q4006L4TP

Littelfuse

Triacs 400V 6A 25-25-25mA

Datasheet

1,472In Stock

$3.91

$1.98

$1.78

$1.64

$1.61

Min.: 1
Mult.: 1

Triacs 600V 12A 50-50-50 mA

Q6012LH5TP
Littelfuse
1: $4.95
1,477In Stock

Mfr. Part #
Q6012LH5TP

Mouser Part #
576-Q6012LH5TP

Littelfuse

Triacs 600V 12A 50-50-50 mA

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Datasheet

1,477In Stock

$4.95

$2.70

$2.46

$2.39

Min.: 1
Mult.: 1

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

Q6030LH5TP
Littelfuse
1: $7.15
2,460In Stock

Mfr. Part #
Q6030LH5TP

Mouser Part #
576-Q6030LH5TP

Littelfuse

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

Datasheet

2,460In Stock

$7.15

$4.32

$4.25

Min.: 1
Mult.: 1

Triacs 600V 35A 50-50-50mA

Q6035RH5TP
Littelfuse
1: $7.85
738In Stock

Mfr. Part #
Q6035RH5TP

Mouser Part #
576-Q6035RH5TP

Littelfuse

Triacs 600V 35A 50-50-50mA

Datasheet

738In Stock

$7.85

$4.20

$4.10

Min.: 1
Mult.: 1

Triacs TRIAC TO220 800V 10A ALTERN

Q8010RH2TP
Littelfuse
1: $4.95
1,014In Stock

Mfr. Part #
Q8010RH2TP

Mouser Part #
576-Q8010RH2TP

Littelfuse

Triacs TRIAC TO220 800V 10A ALTERN

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Datasheet

1,014In Stock

$4.95

$2.52

$2.29

$2.21

Min.: 1
Mult.: 1

Triacs 800V 25A

Q8025NH6RP
Littelfuse
1: $10.00
970In Stock

Mfr. Part #
Q8025NH6RP

Mouser Part #
576-Q8025NH6RP

Littelfuse

Triacs 800V 25A

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Datasheet

970In Stock

Cut Tape

$10.00

$6.77

$4.94

Reel

$4.60

MouseReel Available

Min.: 1
Mult.: 1

: 500

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

QJ6025LH5TP
Littelfuse
1: $8.27
908In Stock

Mfr. Part #
QJ6025LH5TP

Mouser Part #
576-QJ6025LH5TP

Littelfuse

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

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Datasheet

908In Stock

$8.27

$4.88

$4.38

Min.: 1
Mult.: 1

SCRs 400V 10A Sensing

S4010LS2TP
Littelfuse
1: $3.91
1,366In Stock

Mfr. Part #
S4010LS2TP

Mouser Part #
576-S4010LS2TP

Littelfuse

SCRs 400V 10A Sensing

Datasheet

1,366In Stock

$3.91

$2.56

$1.78

$1.61

Min.: 1
Mult.: 1

SCRs 600V 25A

S6025RTP
Littelfuse
1: $4.99
962In Stock

Mfr. Part #
S6025RTP

Mouser Part #
576-S6025RTP

Littelfuse

SCRs 600V 25A

Datasheet

962In Stock

$4.99

$2.90

$2.24

Min.: 1
Mult.: 1

SCRs 55A 800V

S8055NRP
Littelfuse
1: $8.61
739In Stock

Mfr. Part #
S8055NRP

Mouser Part #
576-S8055NRP

Littelfuse

SCRs 55A 800V

Datasheet

739In Stock

Cut Tape

$8.61

$5.82

$4.63

Reel

$4.63

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: $1.48
11,721In Stock

Mfr. Part #
SP00R6-01WTG

Mouser Part #
576-SP00R6-01WTG

Littelfuse

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

Learn More

Datasheet

11,721In Stock

Cut Tape

$1.48

$0.701

$0.603

$0.467

View

Reel

$0.29

MouseReel Available

Min.: 1
Mult.: 1

: 10,000

ESD Protection Diodes / TVS Diodes 12V 100W

SP12-01WTG-C-HV
Littelfuse
1: $0.481
122,238In Stock

Mfr. Part #
SP12-01WTG-C-HV

Mouser Part #
576-SP12-01WTG-C-HV

Littelfuse

ESD Protection Diodes / TVS Diodes 12V 100W

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Datasheet

122,238In Stock

Cut Tape

$0.481

$0.211

$0.183

$0.137

Reel

$0.068

View

MouseReel Available

Min.: 1
Mult.: 1

: 10,000

Industrial & Electrical Fuses 6A 1500 VDC Solar 30kA Photovoltaic

SPXV006.T
Littelfuse
1: $54.46
183In Stock

Mfr. Part #
SPXV006.T

Mouser Part #
576-SPXV006.T

Littelfuse

Industrial & Electrical Fuses 6A 1500 VDC Solar 30kA Photovoltaic

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Datasheet

183In Stock

$54.46

$45.19

$34.71

$30.63

View

Min.: 1
Mult.: 1

PTC Thermistors .7ohms 20%

PTCCL17H112DBE
Vishay / BC Components
1: $4.08
1,125In Stock

Mfr. Part #
PTCCL17H112DBE

Mouser Part #
594-2381-663-51121

Vishay / BC Components

PTC Thermistors .7ohms 20%

Datasheet

1,125In Stock

$4.08

$3.25

$2.90

$2.76

View

Min.: 1
Mult.: 1

Circuit Protection

Types of Circuit Protection

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