.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: 361,668

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 #

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

KLKR01.5T
Littelfuse
1: €25.60
156In Stock

Mfr. Part No.
KLKR01.5T

Mouser Part No
576-KLKR01.5T

Littelfuse

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

Learn More

Datasheet

156In Stock

€25.60

€21.57

€15.73

€14.36

View

Min.: 1
Mult.: 1

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

L4008L6TP
Littelfuse
1: €2.61
1,572In Stock

Mfr. Part No.
L4008L6TP

Mouser Part No
576-L4008L6TP

Littelfuse

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

Datasheet

1,572In Stock

€2.61

€1.31

€1.16

Min.: 1
Mult.: 1

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

Learn More

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 0.2pF 22kV DFN-5

SP3422-04UTG
Littelfuse
1: €0.09
60,603In Stock

Mfr. Part No.
SP3422-04UTG

Mouser Part No
576-SP3422-04UTG

Littelfuse

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

Learn More

Datasheet

60,603In Stock

Cut Tape

€0.09

Reel

€0.09

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

Varistors 4VAC 5.6VDC 0.3J 300 0pF 8.5 V 18V

VC080505C150TP
KYOCERA AVX
1: €0.215
15,323In Stock

Mfr. Part No.
VC080505C150TP

Mouser Part No
581-VC080505C150TP

KYOCERA AVX

Varistors 4VAC 5.6VDC 0.3J 300 0pF 8.5 V 18V

Learn More

Datasheet

Product Comments

15,323In Stock

Cut Tape

€0.215

€0.164

€0.163

Reel

€0.162

MouseReel Available

Min.: 1
Mult.: 1

: 10,000

Varistors 13VAC 18VDC 0.1J 150 pF 25.5 V 42V

VCAS060318A400RP
KYOCERA AVX
1: €0.31
12,231In Stock
4,000On Order

Mfr. Part No.
VCAS060318A400RP

Mouser Part No
581-VCAS060318A400RP

KYOCERA AVX

Varistors 13VAC 18VDC 0.1J 150 pF 25.5 V 42V

Learn More

Datasheet

Product Comments

12,231In Stock

4,000On Order

Cut Tape

€0.31

€0.189

€0.163

€0.151

View

Reel

€0.126

MouseReel Available

Min.: 1
Mult.: 1

: 4,000

Board Mount Surge Protectors Surge Stopper w/ Ideal Diode

LTC4364IDE-1#PBF
Analog Devices
1: €10.42
225In 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

225In Stock

€10.42

€8.19

€6.80

€6.69

View

Min.: 1
Mult.: 1

Board Mount Surge Protectors 100V UV/OV & Reverse Prot Cntr w/ Bi-dir

LTC4368CDD-1#PBF
Analog Devices
1: €5.67
299In Stock
242On Order

Mfr. Part No.
LTC4368CDD-1#PBF

Mouser Part No
584-LTC4368CDD1PBF

Analog Devices

Board Mount Surge Protectors 100V UV/OV & Reverse Prot Cntr w/ Bi-dir

Datasheet

299In Stock

242On Order

€5.67

€4.36

€4.03

€3.59

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

Learn More

Datasheet

1,833In Stock

€1.63

€1.56

€1.47

€1.41

View

Min.: 1
Mult.: 1

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

Learn More

Datasheet

6,130In Stock

Cut Tape

€0.499

€0.47

€0.439

€0.418

View

Reel

€0.302

MouseReel Available

Min.: 1
Mult.: 1

: 4,000

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 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 200W 39V 5% Unidir

TGL41-39A-E3/97
Vishay Semiconductors
1: €0.998
9,990In Stock

Mfr. Part No.
TGL41-39A-E3/97

Mouser Part No
625-TGL41-39A-E3/97

Vishay Semiconductors

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

Learn More

Datasheet

9,990In Stock

Cut Tape

€0.998

€0.81

€0.63

€0.519

Reel

€0.378

View

MouseReel Available

Min.: 1
Mult.: 1

: 5,000

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

Learn More

Datasheet

3,870In Stock

Cut Tape

€1.09

€0.963

€0.96

Reel

€0.96

MouseReel Available

Min.: 1
Mult.: 1

: 2,000

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

Resettable Fuses - PPTC 2920 Resettable SMD PPTC 1.85/15V

MF-LSMF185X-2
Bourns
1: €0.611
8,923In Stock

Mfr. Part No.
MF-LSMF185X-2

Mouser Part No
652-MF-LSMF185X-2

Bourns

Resettable Fuses - PPTC 2920 Resettable SMD PPTC 1.85/15V

Learn More

Datasheet

8,923In Stock

Cut Tape

€0.611

€0.501

€0.458

€0.38

View

Reel

€0.264

MouseReel Available

Min.: 1
Mult.: 1

: 6,000

Resettable Fuses - PPTC 30V 200MA-HD 20A MAX

MF-NSHT020KX-2
Bourns
1: €0.464
9,935In Stock

Mfr. Part No.
MF-NSHT020KX-2

Mouser Part No
652-MF-NSHT020KX-2

Bourns

Resettable Fuses - PPTC 30V 200MA-HD 20A MAX

Learn More

Datasheet

9,935In Stock

Cut Tape

€0.464

€0.353

€0.331

€0.25

Reel

€0.181

View

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

Resettable Fuses - PPTC 16V 100MA-HD 40A MAX

MF-PSHT010KX-2
Bourns
1: €0.327
13,138In Stock

Mfr. Part No.
MF-PSHT010KX-2

Mouser Part No
652-MF-PSHT010KX-2

Bourns

Resettable Fuses - PPTC 16V 100MA-HD 40A MAX

Learn More

Datasheet

13,138In Stock

Cut Tape

€0.327

€0.297

€0.246

€0.227

View

Reel

€0.172

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

Varistors ZV 50V 10%

ZV50K2220801NIR1HT
Bourns
1: €0.963
5,979In Stock

Mfr. Part No.
ZV50K2220801NIR1HT

Mouser Part No
652-ZV50K2220801NIRH

Bourns

Varistors ZV 50V 10%

Learn More

Datasheet

5,979In Stock

Cut Tape

€0.963

€0.626

€0.553

€0.519

€0.501

Reel

€0.425

MouseReel Available

Min.: 1
Mult.: 1

: 1,000

Industrial Surge Protectors Din Rail AC Power Surge Suppressor, 40kA max, 480V Delta,3P

DS43S-480
Citel
1: €237.25
14In Stock

Mfr. Part No.
DS43S-480

Mouser Part No
703-DS43S-480

Citel

Industrial Surge Protectors Din Rail AC Power Surge Suppressor, 40kA max, 480V Delta,3P

Learn More

Datasheet

14In Stock

€237.25

€230.05

€205.37

€205.34

View

Min.: 1
Mult.: 1

ESD Protection Diodes / TVS Diodes TVS ARRAY4 ELMNTS

RSA6.1J4T2R
ROHM Semiconductor
1: €0.344
13,769In Stock

Mfr. Part No.
RSA6.1J4T2R

Mouser Part No
755-RSA6.1J4T2R

ROHM Semiconductor

ESD Protection Diodes / TVS Diodes TVS ARRAY4 ELMNTS

Learn More

Datasheet

13,769In Stock

Cut Tape

€0.344

€0.234

€0.144

€0.114

View

Reel

€0.094

MouseReel Available

Min.: 1
Mult.: 1

: 8,000

ESD Protection Diodes / TVS Diodes RASMID™ Series - Transient Voltage Suppressor

VS4V5BU1QST18R
ROHM Semiconductor
1: €0.232
36,415In Stock

Mfr. Part No.
VS4V5BU1QST18R

Mouser Part No
755-VS4V5BU1QST18R

ROHM Semiconductor

ESD Protection Diodes / TVS Diodes RASMID™ Series - Transient Voltage Suppressor

Learn More

Datasheet

36,415In Stock

Cut Tape

€0.232

€0.157

€0.06

€0.059

View

Reel

€0.051

MouseReel Available

Min.: 1
Mult.: 1

: 18,000

Triacs 600V 1A

BT134W-600,135
WeEn Semiconductors
1: €0.722
24,060In Stock

Mfr. Part No.
BT134W-600,135

Mouser Part No
771-BT134W-600-/T3

WeEn Semiconductors

Triacs 600V 1A

Datasheet

24,060In Stock

Cut Tape

€0.722

€0.446

€0.29

€0.272

Reel

€0.241

€0.155

MouseReel Available

Min.: 1
Mult.: 1

: 4,000

Circuit Protection

Types of Circuit Protection

Customer Service Office

Company

Resources

Support