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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: 361,799

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Part #

Triacs TRIAC TO220 800V 30A HT ALTN

QJ8030LH4TP
Littelfuse
1: €5.93
1,980In Stock

Mfr. Part No.
QJ8030LH4TP

Mouser Part No
576-QJ8030LH4TP

Littelfuse

Triacs TRIAC TO220 800V 30A HT ALTN

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Datasheet

1,980In Stock

€5.93

€5.01

€4.06

€3.61

€3.37

Min.: 1
Mult.: 1

SCRs 1000V 40A SCR TO220

SK040RTP
Littelfuse
1: €4.75
1,887In Stock

Mfr. Part No.
SK040RTP

Mouser Part No
576-SK040RTP

Littelfuse

SCRs 1000V 40A SCR TO220

Datasheet

1,887In Stock

€4.75

€3.19

€2.51

Min.: 1
Mult.: 1

ESD Protection Diodes / TVS Diodes 600W 440V 5% Bi-Directional

SMBJ440CA
Littelfuse
1: €0.301
10,888In Stock

Mfr. Part No.
SMBJ440CA

Mouser Part No
576-SMBJ440CA

Littelfuse

ESD Protection Diodes / TVS Diodes 600W 440V 5% Bi-Directional

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Datasheet

10,888In Stock

Cut Tape

€0.301

€0.284

€0.221

€0.192

Reel

€0.192

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

ESD Protection Diodes / TVS Diodes 0.2pF 22kV DFN-5

SP3422-04UTG
Littelfuse
1: €0.09
60,523In Stock

Mfr. Part No.
SP3422-04UTG

Mouser Part No
576-SP3422-04UTG

Littelfuse

ESD Protection Diodes / TVS Diodes 0.2pF 22kV DFN-5

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Datasheet

60,523In Stock

Cut Tape

€0.09

Reel

€0.09

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

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

SP725ABG
Littelfuse
1: €1.74
1,780In Stock

Mfr. Part No.
SP725ABG

Mouser Part No
576-SP725ABG

Littelfuse

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

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Datasheet

1,780In Stock

€1.74

€1.32

Min.: 1
Mult.: 1

ESD Protection Diodes / TVS Diodes 3kW 78V AEC-Q101 5% Uni-Directional

TPSMD78A
Littelfuse
1: €0.86
5,031In Stock

Mfr. Part No.
TPSMD78A

Mouser Part No
576-TPSMD78A

Littelfuse

ESD Protection Diodes / TVS Diodes 3kW 78V AEC-Q101 5% Uni-Directional

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Datasheet

5,031In Stock

Cut Tape

€0.86

€0.697

€0.50

€0.402

€0.387

Reel

€0.329

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

Board Mount Surge Protectors Overvoltage/Overcurrent Prot Cntr

LTC4361CDC-2#TRMPBF
Analog Devices
1: €4.47
2,848In Stock

Mfr. Part No.
LTC4361CDC-2#TRMPBF

Mouser Part No
584-C4361CDC-2TRMPBF

Analog Devices

Board Mount Surge Protectors Overvoltage/Overcurrent Prot Cntr

Datasheet

2,848In Stock

Cut Tape

€4.47

€3.41

€3.16

€2.86

€2.82

Reel

€2.69

MouseReel Available

Min.: 1
Mult.: 1

: 500

Board Mount Surge Protectors Overvoltage/Overcurrent Prot Cntr

LTC4361IDC-1#TRPBF
Analog Devices
1: €4.87
2,467In Stock

Mfr. Part No.
LTC4361IDC-1#TRPBF

Mouser Part No
584-C4361IDC-1TRPBF

Analog Devices

Board Mount Surge Protectors Overvoltage/Overcurrent Prot Cntr

Datasheet

2,467In Stock

Cut Tape

€4.87

€3.73

€3.44

€3.13

€3.10

Reel

€2.73

MouseReel Available

Min.: 1
Mult.: 1

: 2,500

Board Mount Surge Protectors 100V Overvoltage, Undervoltage & Reverse

LTC4367IMS8-1#TRPBF
Analog Devices
1: €5.50
1,570In Stock

Mfr. Part No.
LTC4367IMS8-1#TRPBF

Mouser Part No
584-C4367IMS8-1TRPBF

Analog Devices

Board Mount Surge Protectors 100V Overvoltage, Undervoltage & Reverse

Datasheet

1,570In Stock

Cut Tape

€5.50

€4.23

€3.91

€3.56

€3.54

Reel

€3.11

MouseReel Available

Min.: 1
Mult.: 1

: 2,500

Board Mount Surge Protectors Surge Stopper w/ Ideal Diode

LTC4364IDE-1#PBF
Analog Devices
1: €10.42
195In Stock

Mfr. Part No.
LTC4364IDE-1#PBF

Mouser Part No
584-LTC4364IDE-1#PBF

Analog Devices

Board Mount Surge Protectors Surge Stopper w/ Ideal Diode

Datasheet

195In Stock

€10.42

€8.19

€7.05

€6.80

View

Min.: 1
Mult.: 1

PTC (Positive Temperature Coefficient) Thermistors 2.8ohms 25%

PTCCL21H701HBE
Vishay / BC Components
1: €3.59
1,522In Stock

Mfr. Part No.
PTCCL21H701HBE

Mouser Part No
594-2381-664-57013

Vishay / BC Components

PTC (Positive Temperature Coefficient) Thermistors 2.8ohms 25%

Datasheet

1,522In Stock

€3.59

€3.22

€3.08

€2.89

View

Min.: 1
Mult.: 1

NTC (Negative Temperature Coefficient) Thermistors 10Kohms 1% AEC-Q200 80mm

NTCALUG02A103F800
Vishay / BC Components
1: €1.63
1,833In Stock

Mfr. Part No.
NTCALUG02A103F800

Mouser Part No
594-NTCALG02A103F800

Vishay / BC Components

NTC (Negative Temperature Coefficient) Thermistors 10Kohms 1% AEC-Q200 80mm

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Datasheet

1,833In Stock

€1.63

€1.56

€1.47

€1.41

View

Min.: 1
Mult.: 1

NTC (Negative Temperature Coefficient) Thermistors 10Kohm 2% Beta 3984K 38mm UL AEC-Q200

NTCALUG91A103GA
Vishay / BC Components
1: €1.87
3,033In Stock

Mfr. Part No.
NTCALUG91A103GA

Mouser Part No
594-NTCALUG91A103GA

Vishay / BC Components

NTC (Negative Temperature Coefficient) Thermistors 10Kohm 2% Beta 3984K 38mm UL AEC-Q200

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Datasheet

3,033In Stock

€1.87

€1.78

€1.64

€1.56

View

Min.: 1
Mult.: 1

NTC (Negative Temperature Coefficient) Thermistors 2.2Kohms 3%

NTCS0603E3222HMT
Vishay / BC Components
1: €0.353
27,667In Stock

Mfr. Part No.
NTCS0603E3222HMT

Mouser Part No
594-NTCS0603E3222HMT

Vishay / BC Components

NTC (Negative Temperature Coefficient) Thermistors 2.2Kohms 3%

Learn More

Datasheet

27,667In Stock

Cut Tape

€0.353

€0.332

€0.294

€0.28

Reel

€0.20

View

MouseReel Available

Min.: 1
Mult.: 1

: 4,000

NTC (Negative Temperature Coefficient) Thermistors 4.7Kohms 2% SMD

NTCS0603E3472GHT
Vishay / BC Components
1: €0.499
6,130In Stock

Mfr. Part No.
NTCS0603E3472GHT

Mouser Part No
594-NTCS0603E3472GHT

Vishay / BC Components

NTC (Negative Temperature Coefficient) Thermistors 4.7Kohms 2% SMD

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Datasheet

6,130In Stock

Cut Tape

€0.499

€0.47

€0.439

€0.418

View

Reel

€0.309

MouseReel Available

Min.: 1
Mult.: 1

: 4,000

PTC (Positive Temperature Coefficient) Thermistors 8.4ohms 20% 265V Series

PTCCL13H321HTE
Vishay / BC Components
1: €1.32
2,136In Stock

Mfr. Part No.
PTCCL13H321HTE

Mouser Part No
594-PTCCL13H321HTE

Vishay / BC Components

PTC (Positive Temperature Coefficient) Thermistors 8.4ohms 20% 265V Series

Datasheet

2,136In Stock

Cut Tape

€1.32

€1.25

€1.05

Reel

€0.839

€0.734

Min.: 1
Mult.: 1

: 750

ESD Protection Diodes / TVS Diodes 6600W, 22V Zener TVS AEC-Q101

DM8W22AQ-13
Diodes Incorporated
1: €2.21
1,305In Stock

Mfr. Part No.
DM8W22AQ-13

Mouser Part No
621-DM8W22AQ-13

Diodes Incorporated

ESD Protection Diodes / TVS Diodes 6600W, 22V Zener TVS AEC-Q101

Learn More

Datasheet

1,305In Stock

Cut Tape

€2.21

€1.62

€1.24

€1.20

Reel

€0.995

MouseReel Available

Min.: 1
Mult.: 1

: 750

ESD Protection Diodes / TVS Diodes 4-Ch Low Cap TVS 0.65pF 5Vrrm 6Vbr

DT1446-04TS-7
Diodes Incorporated
1: €0.103
109,094In Stock

Mfr. Part No.
DT1446-04TS-7

Mouser Part No
621-DT1446-04TS-7

Diodes Incorporated

ESD Protection Diodes / TVS Diodes 4-Ch Low Cap TVS 0.65pF 5Vrrm 6Vbr

Learn More

Datasheet

109,094In Stock

Cut Tape

€0.103

€0.101

Reel

€0.10

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

ESD Protection Diodes / TVS Diodes 1500W 85.0V

SMCJ85CA-13-F
Diodes Incorporated
1: €0.662
9,341In Stock

Mfr. Part No.
SMCJ85CA-13-F

Mouser Part No
621-SMCJ85CA-13-F

Diodes Incorporated

ESD Protection Diodes / TVS Diodes 1500W 85.0V

Datasheet

9,341In Stock

Cut Tape

€0.662

€0.496

€0.357

€0.31

€0.301

Reel

€0.247

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

ESD Protection Diodes / TVS Diodes 1500W 9.0V

SMCJ9.0CA-13-F
Diodes Incorporated
1: €0.662
2,902In Stock

Mfr. Part No.
SMCJ9.0CA-13-F

Mouser Part No
621-SMCJ9.0CA-13-F

Diodes Incorporated

ESD Protection Diodes / TVS Diodes 1500W 9.0V

Datasheet

2,902In Stock

Cut Tape

€0.662

€0.531

€0.493

Reel

€0.493

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

ESD Protection Diodes / TVS Diodes 600W 68V Bidirect

P6KE68CA-E3/54
Vishay Semiconductors
1: €0.74
8,000In Stock

Mfr. Part No.
P6KE68CA-E3/54

Mouser Part No
625-P6KE68CA-E3

Vishay Semiconductors

ESD Protection Diodes / TVS Diodes 600W 68V Bidirect

Learn More

Datasheet

8,000In Stock

Cut Tape

€0.74

€0.457

€0.296

€0.227

Reel

€0.156

View

Min.: 1
Mult.: 1

: 4,000

Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 3MM 140V 2POLE CHIP TYPE SMT

GTCC23-141M-R01-2
Littelfuse
1: €1.09
3,870In Stock

Mfr. Part No.
GTCC23-141M-R01-2

Mouser Part No
650-GTCC23-141MR01-2

Littelfuse

Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 3MM 140V 2POLE CHIP TYPE SMT

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Datasheet

3,870In Stock

Cut Tape

€1.09

€0.963

€0.96

Reel

€0.96

MouseReel Available

Min.: 1
Mult.: 1

: 2,000

Resettable Fuses - PPTC .12A 48V Nano SMD AEC-Q200

NANOASMDC012F-2
Littelfuse
1: €0.413
21,861In Stock

Mfr. Part No.
NANOASMDC012F-2

Mouser Part No
650-NANOASMDC012F-2

Littelfuse

Resettable Fuses - PPTC .12A 48V Nano SMD AEC-Q200

Learn More

Datasheet

21,861In Stock

Cut Tape

€0.413

€0.374

€0.31

€0.286

Reel

€0.173

View

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

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

2907874
Phoenix Contact
1: €220.47
6In Stock

Mfr. Part No.
2907874

Mouser Part No
651-2907874

Phoenix Contact

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

Learn More

Datasheet

6In Stock

€220.47

Min.: 1
Mult.: 1

Varistors AVHT AUTO SERIES 17V

AV17K1210401NIR1HT
Bourns
1: €0.31
13,606In Stock

Mfr. Part No.
AV17K1210401NIR1HT

Mouser Part No
652-AV17K1210401NI1H

Bourns

Varistors AVHT AUTO SERIES 17V

Learn More

Datasheet

13,606In Stock

Cut Tape

€0.31

€0.192

€0.166

€0.153

Reel

€0.132

View

MouseReel Available

Min.: 1
Mult.: 1

: 2,500

Circuit Protection

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