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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 #

ESD Protection Diodes / TVS Diodes ESD 430V BI

AK6-430C-Y
Littelfuse
1: $100.37
89In Stock

Mfr. Part #
AK6-430C-Y

Mouser Part #
576-AK6-430C-Y

Littelfuse

ESD Protection Diodes / TVS Diodes ESD 430V BI

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Datasheet

89In Stock

$100.37

$89.58

$89.57

Quote

Min.: 1
Mult.: 1

Industrial & Electrical Fuses 1.25A 600VAC 300VDC Slo-Blo

KLDR1.25TXP
Littelfuse
1: $54.08
98In Stock

Mfr. Part #
KLDR1.25TXP

Mouser Part #
576-KLDR1.25TXP

Littelfuse

Industrial & Electrical Fuses 1.25A 600VAC 300VDC Slo-Blo

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Datasheet

98In Stock

$54.08

$44.95

$38.29

$33.57

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Min.: 1
Mult.: 1

Industrial & Electrical Fuses 1.5A 600VAC 300VDC Fast Acting

KLKR01.5T
Littelfuse
1: $41.26
148In Stock

Mfr. Part #
KLKR01.5T

Mouser Part #
576-KLKR01.5T

Littelfuse

Industrial & Electrical Fuses 1.5A 600VAC 300VDC Fast Acting

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Datasheet

148In Stock

$41.26

$34.35

$20.02

$19.89

Min.: 1
Mult.: 1

Triacs 400V 8A Sensing 5-5-5-10mA

L4008L6TP
Littelfuse
1: $4.37
1,572In Stock

Mfr. Part #
L4008L6TP

Mouser Part #
576-L4008L6TP

Littelfuse

Triacs 400V 8A Sensing 5-5-5-10mA

Datasheet

1,572In Stock

$4.37

$2.21

$1.95

$1.86

Min.: 1
Mult.: 1

Industrial & Electrical Fuses 200A 700VAC 700VDC FF L70QS POWR-SPEED

L70QS200.V
Littelfuse
1: $208.69
65In Stock

Mfr. Part #
L70QS200.V

Mouser Part #
576-L70QS200.V

Littelfuse

Industrial & Electrical Fuses 200A 700VAC 700VDC FF L70QS POWR-SPEED

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Datasheet

65In Stock

$208.69

$179.24

$154.53

$138.28

Min.: 1
Mult.: 1

Triacs 600V 16A 80-80-80mA

Q6016LH6TP
Littelfuse
1: $5.71
5,012In Stock

Mfr. Part #
Q6016LH6TP

Mouser Part #
576-Q6016LH6TP

Littelfuse

Triacs 600V 16A 80-80-80mA

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Datasheet

5,012In Stock

$5.71

$2.96

$2.70

$2.68

Min.: 1
Mult.: 1

Triacs 1000V 12A 50-50-50mA

QK012LH5TP
Littelfuse
1: $7.70
900In Stock

Mfr. Part #
QK012LH5TP

Mouser Part #
576-QK012LH5TP

Littelfuse

Triacs 1000V 12A 50-50-50mA

Datasheet

900In Stock

$7.70

$5.04

$3.72

$3.30

View

Min.: 1
Mult.: 1

SCRs 25A 400V

S4025NRP
Littelfuse
1: $5.95
926In Stock

Mfr. Part #
S4025NRP

Mouser Part #
576-S4025NRP

Littelfuse

SCRs 25A 400V

Datasheet

926In Stock

Cut Tape

$5.95

$3.93

$2.78

Reel

$2.29

MouseReel Available

Min.: 1
Mult.: 1

: 500

SCRs 1000V 40A SCR TO220

SK040RTP
Littelfuse
1: $7.98
1,862In Stock

Mfr. Part #
SK040RTP

Mouser Part #
576-SK040RTP

Littelfuse

SCRs 1000V 40A SCR TO220

Datasheet

1,862In Stock

$7.98

$5.38

$4.19

Min.: 1
Mult.: 1

ESD Protection Diodes / TVS Diodes 6 CH DIODE ARRAY

SP721APP
Littelfuse
1: $4.59
1,280In Stock

Mfr. Part #
SP721APP

Mouser Part #
576-SP721APP

Littelfuse

ESD Protection Diodes / TVS Diodes 6 CH DIODE ARRAY

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Datasheet

1,280In Stock

$4.59

$2.13

$1.95

$1.53

$1.52

Min.: 1
Mult.: 1

ESD Protection Diodes / TVS Diodes 6Ch High Energy SCR Array

SP725ABG
Littelfuse
1: $4.82
1,719In Stock

Mfr. Part #
SP725ABG

Mouser Part #
576-SP725ABG

Littelfuse

ESD Protection Diodes / TVS Diodes 6Ch High Energy SCR Array

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Datasheet

1,719In Stock

$4.82

$2.25

$2.05

$1.83

$1.82

Min.: 1
Mult.: 1

Surface Mount Fuses 62.5mA fuse

F0603G0R06FNTR
KYOCERA AVX
1: $1.17
21,857In Stock

Mfr. Part #
F0603G0R06FNTR

Mouser Part #
581-F0603G0R06FNTR

KYOCERA AVX

Surface Mount Fuses 62.5mA fuse

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Datasheet

21,857In Stock

Cut Tape

$1.17

$1.07

$0.892

$0.823

Reel

$0.551

View

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

PTC Thermistors 2.8ohms 25%

PTCCL21H701HBE
Vishay / BC Components
1: $6.58
1,361In Stock

Mfr. Part #
PTCCL21H701HBE

Mouser Part #
594-2381-664-57013

Vishay / BC Components

PTC Thermistors 2.8ohms 25%

Datasheet

1,361In Stock

$6.58

$5.60

$4.91

$4.37

View

Min.: 1
Mult.: 1

NTC Thermistors 100Kohms 3% SMD

NTCS0603E3104HXT
Vishay / BC Components
1: $0.559
11,391In Stock

Mfr. Part #
NTCS0603E3104HXT

Mouser Part #
594-NTCS0603E3104HXT

Vishay / BC Components

NTC Thermistors 100Kohms 3% SMD

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Datasheet

11,391In Stock

Cut Tape

$0.559

$0.481

$0.438

$0.424

View

Reel

$0.308

MouseReel Available

Min.: 1
Mult.: 1

: 4,000

NTC Thermistors 2.2Kohms 3%

NTCS0603E3222HMT
Vishay / BC Components
1: $0.559
27,667In Stock

Mfr. Part #
NTCS0603E3222HMT

Mouser Part #
594-NTCS0603E3222HMT

Vishay / BC Components

NTC Thermistors 2.2Kohms 3%

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Datasheet

27,667In Stock

Cut Tape

$0.559

$0.521

$0.462

$0.434

Reel

$0.303

View

MouseReel Available

Min.: 1
Mult.: 1

: 4,000

NTC Thermistors 4.7Kohms 2% SMD

NTCS0603E3472GHT
Vishay / BC Components
1: $0.78
5,678In Stock

Mfr. Part #
NTCS0603E3472GHT

Mouser Part #
594-NTCS0603E3472GHT

Vishay / BC Components

NTC Thermistors 4.7Kohms 2% SMD

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Datasheet

5,678In Stock

Cut Tape

$0.78

$0.738

$0.69

$0.657

View

Reel

$0.423

MouseReel Available

Min.: 1
Mult.: 1

: 4,000

NTC Thermistors 100Kohms 3% SMD

NTCS0805E3104HXT
Vishay / BC Components
1: $0.468
7,920In Stock

Mfr. Part #
NTCS0805E3104HXT

Mouser Part #
594-NTCS0805E3104HXT

Vishay / BC Components

NTC Thermistors 100Kohms 3% SMD

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Datasheet

7,920In Stock

Cut Tape

$0.468

$0.42

$0.394

$0.382

View

Reel

$0.294

MouseReel Available

Min.: 1
Mult.: 1

: 4,000

PTC Thermistors 8.4ohms 20% 265V Series

PTCCL13H321HTE
Vishay / BC Components
1: $1.99
2,112In Stock

Mfr. Part #
PTCCL13H321HTE

Mouser Part #
594-PTCCL13H321HTE

Vishay / BC Components

PTC Thermistors 8.4ohms 20% 265V Series

Datasheet

2,112In Stock

Cut Tape

$1.99

$1.89

$1.57

$1.53

View

Reel

$1.08

Min.: 1
Mult.: 1

: 750

ESD Protection Diodes / TVS Diodes 1500W 9.0V

SMCJ9.0CA-13-F
Diodes Incorporated
1: $1.81
2,915In Stock

Mfr. Part #
SMCJ9.0CA-13-F

Mouser Part #
621-SMCJ9.0CA-13-F

Diodes Incorporated

ESD Protection Diodes / TVS Diodes 1500W 9.0V

Datasheet

2,915In Stock

Cut Tape

$1.81

$0.845

$0.75

Reel

$0.689

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

ESD Protection Diodes / TVS Diodes 200W 39V 5% Unidir

TGL41-39A-E3/97
Vishay Semiconductors
1: $1.52
9,694In Stock

Mfr. Part #
TGL41-39A-E3/97

Mouser Part #
625-TGL41-39A-E3/97

Vishay Semiconductors

ESD Protection Diodes / TVS Diodes 200W 39V 5% Unidir

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Datasheet

9,694In Stock

Cut Tape

$1.52

$1.14

$0.954

$0.785

Reel

$0.581

View

MouseReel Available

Min.: 1
Mult.: 1

: 5,000

Industrial Surge Protectors PT-IQ-4X1-24DC-UT

2800982
Phoenix Contact
1: $506.14
4In Stock

Mfr. Part #
2800982

Mouser Part #
651-2800982

Phoenix Contact

Industrial Surge Protectors PT-IQ-4X1-24DC-UT

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Datasheet

4In Stock

$506.14

Min.: 1
Mult.: 1

Industrial Surge Protectors VAL-SEC-T2-2+0- 120DC-FM

2907874
Phoenix Contact
1: $388.31
7In Stock

Mfr. Part #
2907874

Mouser Part #
651-2907874

Phoenix Contact

Industrial Surge Protectors VAL-SEC-T2-2+0- 120DC-FM

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Datasheet

7In Stock

$388.31

Min.: 1
Mult.: 1

Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 75V 7KA 20% 2-POLE SMD

GDT25-07-S1-RP
Bourns
1: $1.39
10,290In Stock

Mfr. Part #
GDT25-07-S1-RP

Mouser Part #
652-GDT25-07-S1-RP

Bourns

Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 75V 7KA 20% 2-POLE SMD

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Datasheet

10,290In Stock

Cut Tape

$1.39

$1.20

$1.04

$0.963

Reel

$0.751

View

MouseReel Available

Min.: 1
Mult.: 1

: 1,500

Varistors IsoMOV 3KA 230Vrms Bulk In-Line

IsoM3-230-B-L2
Bourns
1: $2.05
3,145In Stock

Mfr. Part #
IsoM3-230-B-L2

Mouser Part #
652-ISOM3-230-B-L2

Bourns

Varistors IsoMOV 3KA 230Vrms Bulk In-Line

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Datasheet

3,145In Stock

$2.05

$1.43

$1.28

$1.24

View

Min.: 1
Mult.: 1

Varistors IsoMOV 5KA 380Vrms Bulk In-Line

IsoM5-380-B-L2
Bourns
1: $2.93
4,027In Stock

Mfr. Part #
IsoM5-380-B-L2

Mouser Part #
652-ISOM5-380-B-L2

Bourns

Varistors IsoMOV 5KA 380Vrms Bulk In-Line

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Datasheet

4,027In Stock

$2.93

$2.00

$1.64

$1.59

View

Min.: 1
Mult.: 1

Circuit Protection

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