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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: 359,624

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Part #

Varistors MOV 510V 10mm 2.5KA 10% Silcn Coatng Strt Leads AEC-Q200

511KH10-AT
YAGEO
1: €0.456
2,620In Stock
400On Order
New Product

Mfr. Part No.
511KH10-AT

Mouser Part No
603-511KH10-AT

New Product

YAGEO

Varistors MOV 510V 10mm 2.5KA 10% Silcn Coatng Strt Leads AEC-Q200

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Datasheet

2,620In Stock

400On Order

€0.456

€0.281

€0.243

€0.218

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Min.: 1
Mult.: 1

NTC (Negative Temperature Coefficient) Thermistors Assembly Probe EP1 Type R0=30kOhms 3% Temp. Range -30 to 120

PB2EP-43-EP1
Shibaura Electronics
1: €5.21
100In Stock
New Product

Mfr. Part No.
PB2EP-43-EP1

Mouser Part No
603-PB2EP-43-EP1

New Product

Shibaura Electronics

NTC (Negative Temperature Coefficient) Thermistors Assembly Probe EP1 Type R0=30kOhms 3% Temp. Range -30 to 120

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Datasheet

100In Stock

€5.21

€4.75

€4.03

€3.86

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Min.: 1
Mult.: 1

NTC (Negative Temperature Coefficient) Thermistors Assembly Probe EPW1 Type R50=3.485kOhms 2% Temp. Range -20 to 120

PB3M-42D-EPW1
Shibaura Electronics
1: €4.34
100In Stock
New Product

Mfr. Part No.
PB3M-42D-EPW1

Mouser Part No
603-PB3M-42D-EPW1

New Product

Shibaura Electronics

NTC (Negative Temperature Coefficient) Thermistors Assembly Probe EPW1 Type R50=3.485kOhms 2% Temp. Range -20 to 120

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Datasheet

100In Stock

€4.34

€3.96

€3.35

€3.22

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Min.: 1
Mult.: 1

Industrial Surge Protectors SFP2-1S-1-10A-120AC-UT

1292457
Phoenix Contact
1: €193.99
1In Stock
9On Order
New Product

Mfr. Part No.
1292457

Mouser Part No
651-1292457

New Product

Phoenix Contact

Industrial Surge Protectors SFP2-1S-1-10A-120AC-UT

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Datasheet

1In Stock

9On Order

€193.99

Min.: 1
Mult.: 1

Industrial & Electrical Fuses Specialty Fuses POWR-SPEED SQB ESR 1500VDC 3XL BOLT 450A

ESR3XLUB0450XI
Littelfuse
1: €528.31
3In Stock
New Product

Mfr. Part No.
ESR3XLUB0450XI

Mouser Part No
576-ESR3XLUB0450XI

New Product

Littelfuse

Industrial & Electrical Fuses Specialty Fuses POWR-SPEED SQB ESR 1500VDC 3XL BOLT 450A

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Datasheet

3In Stock

€528.31

€433.80

€394.87

Quote

Min.: 1
Mult.: 1

ESD Protection Diodes / TVS Diodes 30V, 100A ,DNF2020-6L

SC3000-01UTG
Littelfuse
1: €1.37
3,100In Stock
New Product

Mfr. Part No.
SC3000-01UTG

Mouser Part No
576-SC3000-01UTG

New Product

Littelfuse

ESD Protection Diodes / TVS Diodes 30V, 100A ,DNF2020-6L

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Datasheet

3,100In Stock

Cut Tape

€1.37

€0.869

€0.573

€0.449

Reel

€0.349

View

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

SCRs 8A 800V Std TO-251 V-PAK

SJ8008VTP
Littelfuse
1: €2.67
750In Stock
New Product

Mfr. Part No.
SJ8008VTP

Mouser Part No
576-SJ8008VTP

New Product

Littelfuse

SCRs 8A 800V Std TO-251 V-PAK

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Datasheet

750In Stock

€2.67

€1.74

€1.20

€0.998

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Min.: 1
Mult.: 1

NTC (Negative Temperature Coefficient) Thermistors Assembly Probe MP1 Type R(100) =3.3kOhms +/-5% Temp. Range -30 to 200

PT3FC-51F-MP1
Shibaura Electronics
1: €10.42
99In Stock
New Product

Mfr. Part No.
PT3FC-51F-MP1

Mouser Part No
603-PT3FC-51F-MP1

New Product

Shibaura Electronics

NTC (Negative Temperature Coefficient) Thermistors Assembly Probe MP1 Type R(100) =3.3kOhms +/-5% Temp. Range -30 to 200

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Datasheet

99In Stock

€10.42

€9.49

€8.07

€7.71

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Min.: 1
Mult.: 1

NTC (Negative Temperature Coefficient) Thermistors Assembly Probe OCK1 Type R200=1.0kOhms 5% Temp. Range -20 to 300

PTM-312-OCK1
Shibaura Electronics
1: €5.21
100In Stock
New Product

Mfr. Part No.
PTM-312-OCK1

Mouser Part No
603-PTM-312-OCK1

New Product

Shibaura Electronics

NTC (Negative Temperature Coefficient) Thermistors Assembly Probe OCK1 Type R200=1.0kOhms 5% Temp. Range -20 to 300

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Datasheet

100In Stock

€5.21

€4.75

€4.03

€3.86

View

Min.: 1
Mult.: 1

NTC (Negative Temperature Coefficient) Thermistors Assembly Probe KN2 Type R100=3.3kOhms 2.5% Temp. Range -20 to 300

PTM-51F-KN2
Shibaura Electronics
1: €5.21
99In Stock
New Product

Mfr. Part No.
PTM-51F-KN2

Mouser Part No
603-PTM-51F-KN2

New Product

Shibaura Electronics

NTC (Negative Temperature Coefficient) Thermistors Assembly Probe KN2 Type R100=3.3kOhms 2.5% Temp. Range -20 to 300

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Datasheet

99In Stock

€5.21

€4.75

€4.03

€3.86

View

Min.: 1
Mult.: 1

Industrial Surge Protectors SFP2-1S-1-5A-120AC-UT

1292315
Phoenix Contact
1: €185.13
5In Stock
New Product

Mfr. Part No.
1292315

Mouser Part No
651-1292315

New Product

Phoenix Contact

Industrial Surge Protectors SFP2-1S-1-5A-120AC-UT

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Datasheet

5In Stock

€185.13

Min.: 1
Mult.: 1

ESD Protection Diodes / TVS Diodes ESD 3.3V BI

CDDFN2-T3V3SC
Bourns
1: €0.361
8,400In Stock
New Product

Mfr. Part No.
CDDFN2-T3V3SC

Mouser Part No
652-CDDFN2-T3V3SC

New Product

Bourns

ESD Protection Diodes / TVS Diodes ESD 3.3V BI

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Datasheet

8,400In Stock

Cut Tape

€0.361

€0.25

€0.123

€0.102

Reel

€0.045

View

MouseReel Available

Min.: 1
Mult.: 1

: 12,000

Industrial & Electrical Fuses POWrFuse BD 1000Vdc 600A

PF-1NH100E600B2
Bourns
1: €313.70
4In Stock
New Product

Mfr. Part No.
PF-1NH100E600B2

Mouser Part No
652-PF-1NH100E600B2

New Product

Bourns

Industrial & Electrical Fuses POWrFuse BD 1000Vdc 600A

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Datasheet

4In Stock

€313.70

€249.44

€229.87

Min.: 1
Mult.: 1

Industrial & Electrical Fuses Specialty Fuses POWR-SPEED SQB ESR 1500VDC 3XL BOLT 315A

ESR3XLUB0315XI
Littelfuse
1: €502.64
2In Stock
1Expected 17/09/2026
New Product

Mfr. Part No.
ESR3XLUB0315XI

Mouser Part No
576-ESR3XLUB0315XI

New Product

Littelfuse

Industrial & Electrical Fuses Specialty Fuses POWR-SPEED SQB ESR 1500VDC 3XL BOLT 315A

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Datasheet

2In Stock

1Expected 17/09/2026

€502.64

€412.72

€375.68

Quote

Min.: 1
Mult.: 1

Triacs 0.8A 600V Sens SOT-89

LX809MBRP
Littelfuse
1: €1.17
700In Stock
200On Order
New Product

Mfr. Part No.
LX809MBRP

Mouser Part No
576-LX809MBRP

New Product

Littelfuse

Triacs 0.8A 600V Sens SOT-89

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Datasheet

700In Stock

200On Order

Cut Tape

€1.17

€0.72

€0.473

€0.377

Reel

€0.32

View

MouseReel Available

Min.: 1
Mult.: 1

: 1,000

NTC (Negative Temperature Coefficient) Thermistors Assembly Probe CE2 Type R37=29.37kOhms 2.5% Temp. Range -20 to 90

PT2C-51F-CE2
Shibaura Electronics
1: €5.21
100In Stock
New Product

Mfr. Part No.
PT2C-51F-CE2

Mouser Part No
603-PT2C-51F-CE2

New Product

Shibaura Electronics

NTC (Negative Temperature Coefficient) Thermistors Assembly Probe CE2 Type R37=29.37kOhms 2.5% Temp. Range -20 to 90

Learn More

Datasheet

100In Stock

€5.21

€4.75

€4.03

€3.86

View

Min.: 1
Mult.: 1

Industrial Surge Protectors SFP2-1S-1-20A-230AC-UT

1292605
Phoenix Contact
1: €220.56
2In Stock
24On Order
New Product

Mfr. Part No.
1292605

Mouser Part No
651-1292605

New Product

Phoenix Contact

Industrial Surge Protectors SFP2-1S-1-20A-230AC-UT

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Datasheet

2In Stock

24On Order

€220.56

Min.: 1
Mult.: 1

Industrial & Electrical Fuses POWrFuse BD 1000Vdc 550A

PF-1NH100E550B2
Bourns
1: €313.70
4In Stock
New Product

Mfr. Part No.
PF-1NH100E550B2

Mouser Part No
652-PF-1NH100E550B2

New Product

Bourns

Industrial & Electrical Fuses POWrFuse BD 1000Vdc 550A

Learn More

Datasheet

4In Stock

€313.70

€249.44

€229.87

Min.: 1
Mult.: 1

NTC (Negative Temperature Coefficient) Thermistors Glass Encapsulated NTC Thermistor, Probe, Surface Mount 15K4

20012616-00
TE Connectivity
1: €328.67
1In Stock
New Product

Mfr. Part No.
20012616-00

Mouser Part No
571-20012616-00

New Product

TE Connectivity

NTC (Negative Temperature Coefficient) Thermistors Glass Encapsulated NTC Thermistor, Probe, Surface Mount 15K4

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Datasheet

1In Stock

€328.67

€263.75

€261.36

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Min.: 1
Mult.: 1

NTC (Negative Temperature Coefficient) Thermistors Assembly Probe KT1 Type R25=10kOhms 5% Temp. Range -30 to 80

KTEC-41-KT1
Shibaura Electronics
1: €4.34
100In Stock
New Product

Mfr. Part No.
KTEC-41-KT1

Mouser Part No
603-KTEC-41-KT1

New Product

Shibaura Electronics

NTC (Negative Temperature Coefficient) Thermistors Assembly Probe KT1 Type R25=10kOhms 5% Temp. Range -30 to 80

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Datasheet

100In Stock

€4.34

€3.96

€3.35

€3.22

View

Min.: 1
Mult.: 1

NTC (Negative Temperature Coefficient) Thermistors Assembly Probe KTM1 Type R25=10kOhms 2% Temp. Range -30 to 100

KTM-41-KTM1
Shibaura Electronics
1: €5.21
88In Stock
New Product

Mfr. Part No.
KTM-41-KTM1

Mouser Part No
603-KTM-41-KTM1

New Product

Shibaura Electronics

NTC (Negative Temperature Coefficient) Thermistors Assembly Probe KTM1 Type R25=10kOhms 2% Temp. Range -30 to 100

Learn More

Datasheet

88In Stock

€5.21

€4.75

€4.03

€3.86

View

Min.: 1
Mult.: 1

NTC (Negative Temperature Coefficient) Thermistors Assembly Probe CE1 Type R25=10kOhms 3% Temp. Range -30 to 80

PTC-43C-CE1
Shibaura Electronics
1: €5.21
100In Stock
New Product

Mfr. Part No.
PTC-43C-CE1

Mouser Part No
603-PTC-43C-CE1

New Product

Shibaura Electronics

NTC (Negative Temperature Coefficient) Thermistors Assembly Probe CE1 Type R25=10kOhms 3% Temp. Range -30 to 80

Learn More

Datasheet

100In Stock

€5.21

€4.75

€4.03

€3.86

View

Min.: 1
Mult.: 1

ESD Protection Diodes / TVS Diodes SOD323 03V 400W BIDIR

CDSOD323-T03SC-Q
Bourns
1: €1.03
1,924In Stock
New Product

Mfr. Part No.
CDSOD323-T03SC-Q

Mouser Part No
652-CDSOD323-T03SC-Q

New Product

Bourns

ESD Protection Diodes / TVS Diodes SOD323 03V 400W BIDIR

Learn More

Datasheet

1,924In Stock

Cut Tape

€1.03

€0.645

€0.424

€0.33

Reel

€0.255

View

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

ESD Protection Diodes / TVS Diodes SOD323 36V 400W BIDIR

CDSOD323-T36SC-Q
Bourns
1: €1.03
2,092In Stock
New Product

Mfr. Part No.
CDSOD323-T36SC-Q

Mouser Part No
652-CDSOD323-T36SC-Q

New Product

Bourns

ESD Protection Diodes / TVS Diodes SOD323 36V 400W BIDIR

Learn More

Datasheet

2,092In Stock

Cut Tape

€1.03

€0.645

€0.424

€0.33

Reel

€0.255

View

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

ESD Protection Diodes / TVS Diodes TVS 6KA RATED 700V BI AXIAL

AK6-700C-FL
Littelfuse
1: €114.19
4In Stock
New Product

Mfr. Part No.
AK6-700C-FL

Mouser Part No
576-AK6-700C-FL

New Product

Littelfuse

ESD Protection Diodes / TVS Diodes TVS 6KA RATED 700V BI AXIAL

Learn More

Datasheet

4In Stock

€114.19

€104.25

Min.: 1
Mult.: 1

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