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Circuit Protection

Circuit Protection devices and components are available at Mouser from industry leading manufacturers. Mouser is an authorized distributor for many circuit protection manufacturers including Bourns, Eaton, TDK, Littelfuse, Semtech, Vishay, & more.
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Types of Circuit Protection

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Part #

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

PB2EP-43-EP1
Shibaura Electronics
1: $6.06
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

$6.06

$5.52

$4.69

$4.49

View

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: $5.05
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

$5.05

$4.60

$3.90

$3.74

View

Min.: 1
Mult.: 1

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

1292457
Phoenix Contact
1: $225.57
2In Stock
8Expected 06/10/2026
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

2In Stock

8Expected 06/10/2026

$225.57

Min.: 1
Mult.: 1

ESD Protection Diodes / TVS Diodes 5V, 6A, SOD882

SC1003-01ETG
Littelfuse
1: $0.60
10,070In Stock
New Product

Mfr. Part No.
SC1003-01ETG

Mouser Part No
576-SC1003-01ETG

New Product

Littelfuse

ESD Protection Diodes / TVS Diodes 5V, 6A, SOD882

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Datasheet

10,070In Stock

Cut Tape

$0.60

$0.367

$0.234

$0.195

Reel

$0.109

View

MouseReel Available

Min.: 1
Mult.: 1

: 10,000

NTC (Negative Temperature Coefficient) Thermistors Assembly Probe MG1 Type R180=1.247kOhms 3% Temp. Range -40 to 200

PL3C-312-MG1
Shibaura Electronics
1: $12.12
100In Stock
New Product

Mfr. Part No.
PL3C-312-MG1

Mouser Part No
603-PL3C-312-MG1

New Product

Shibaura Electronics

NTC (Negative Temperature Coefficient) Thermistors Assembly Probe MG1 Type R180=1.247kOhms 3% Temp. Range -40 to 200

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Datasheet

100In Stock

$12.12

$11.04

$9.38

$8.96

View

Min.: 1
Mult.: 1

NTC (Negative Temperature Coefficient) Thermistors Assembly Probe MP3 Type R200=1.0kOhms 5% Temp. Range -40 to 200

PL3FC-312-MP3
Shibaura Electronics
1: $12.12
100In Stock
New Product

Mfr. Part No.
PL3FC-312-MP3

Mouser Part No
603-PL3FC-312-MP3

New Product

Shibaura Electronics

NTC (Negative Temperature Coefficient) Thermistors Assembly Probe MP3 Type R200=1.0kOhms 5% Temp. Range -40 to 200

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Datasheet

100In Stock

$12.12

$11.04

$9.38

$8.96

View

Min.: 1
Mult.: 1

NTC (Negative Temperature Coefficient) Thermistors Assembly Probe KN3 Type R100=3.3kOhms 2.5% Temp. Range -20 to 300

PT3M-51F-KN3
Shibaura Electronics
1: $6.06
99In Stock
New Product

Mfr. Part No.
PT3M-51F-KN3

Mouser Part No
603-PT3M-51F-KN3

New Product

Shibaura Electronics

NTC (Negative Temperature Coefficient) Thermistors Assembly Probe KN3 Type R100=3.3kOhms 2.5% Temp. Range -20 to 300

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Datasheet

99In Stock

$6.06

$5.52

$4.69

$4.49

View

Min.: 1
Mult.: 1

NTC (Negative Temperature Coefficient) Thermistors Assembly Probe RT1 Type R100=3.3kOhms 2.5% Temp. Range -20 to 180

PTP-51F-RT1
Shibaura Electronics
1: $6.06
99In Stock
New Product

Mfr. Part No.
PTP-51F-RT1

Mouser Part No
603-PTP-51F-RT1

New Product

Shibaura Electronics

NTC (Negative Temperature Coefficient) Thermistors Assembly Probe RT1 Type R100=3.3kOhms 2.5% Temp. Range -20 to 180

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Datasheet

99In Stock

$6.06

$5.52

$4.69

$4.49

View

Min.: 1
Mult.: 1

ESD Protection Diodes / TVS Diodes DIO TVS VWM 24V 350W BIDIR SOD323 Automotive

CDSOD323-T24LC-Q
Bourns
1: $1.24
1,952In Stock
New Product

Mfr. Part No.
CDSOD323-T24LC-Q

Mouser Part No
652-CDSOD323-T24LC-Q

New Product

Bourns

ESD Protection Diodes / TVS Diodes DIO TVS VWM 24V 350W BIDIR SOD323 Automotive

Learn More

Datasheet

1,952In Stock

Cut Tape

$1.24

$0.776

$0.51

$0.397

Reel

$0.307

View

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

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

20012616-00
TE Connectivity
1: $382.17
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

$382.17

$306.69

$303.91

View

Min.: 1
Mult.: 1

ESD Protection Diodes / TVS Diodes TVS 3KW 30V 5%BI DO-214AB Foldback TR13

TPSMD30CA-FL
Littelfuse
1: $1.52
2,100In Stock
3,000Expected 16/09/2026
New Product

Mfr. Part No.
TPSMD30CA-FL

Mouser Part No
576-TPSMD30CA-FL

New Product

Littelfuse

ESD Protection Diodes / TVS Diodes TVS 3KW 30V 5%BI DO-214AB Foldback TR13

Learn More

Datasheet

2,100In Stock

3,000Expected 16/09/2026

Cut Tape

$1.52

$1.09

$0.784

$0.63

Reel

$0.531

View

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

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

KTEC-41-KT1
Shibaura Electronics
1: $5.05
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

$5.05

$4.60

$3.90

$3.74

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: $6.06
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

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Datasheet

88In Stock

$6.06

$5.52

$4.69

$4.49

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: $6.06
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

$6.06

$5.52

$4.69

$4.49

View

Min.: 1
Mult.: 1

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

CDSOD323-T03SC-Q
Bourns
1: $1.20
1,909In 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

1,909In Stock

Cut Tape

$1.20

$0.75

$0.493

$0.384

Reel

$0.297

View

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

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

CDSOD323-T36SC-Q
Bourns
1: $1.20
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

$1.20

$0.75

$0.493

$0.384

Reel

$0.297

View

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

NTC (Negative Temperature Coefficient) Thermistors SMD NTC Thermistor 1206 5kOhm 3% B-3455 HT Series

B57621C5502H062
TDK
1: $0.82
2,800In Stock
New Product

Mfr. Part No.
B57621C5502H062

Mouser Part No
871-B57621C5502H062

New Product

TDK

NTC (Negative Temperature Coefficient) Thermistors SMD NTC Thermistor 1206 5kOhm 3% B-3455 HT Series

Datasheet

2,800In Stock

Cut Tape

$0.82

$0.772

$0.629

$0.591

View

Reel

$0.427

MouseReel Available

Min.: 1
Mult.: 1

: 4,000

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

AK6-700C-FL
Littelfuse
1: $132.78
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

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Datasheet

4In Stock

$132.78

$121.22

Min.: 1
Mult.: 1

Industrial & Electrical Fuses Specialty Fuses POWR-SPEED SQB ESR 1500VDC 3XL BOLT 250A

ESR3XLUB0250XI
Littelfuse
1: $522.42
3In Stock
New Product

Mfr. Part No.
ESR3XLUB0250XI

Mouser Part No
576-ESR3XLUB0250XI

New Product

Littelfuse

Industrial & Electrical Fuses Specialty Fuses POWR-SPEED SQB ESR 1500VDC 3XL BOLT 250A

Learn More

Datasheet

3In Stock

$522.42

$428.96

$390.48

Quote

Min.: 1
Mult.: 1

ESD Protection Diodes / TVS Diodes 7V & 12V 75pF 20A SOT23-3L

SC712-02HTG
Littelfuse
1: $1.30
2,042In Stock
100Expected 17/11/2026
New Product

Mfr. Part No.
SC712-02HTG

Mouser Part No
576-SC712-02HTG

New Product

Littelfuse

ESD Protection Diodes / TVS Diodes 7V & 12V 75pF 20A SOT23-3L

Learn More

Datasheet

2,042In Stock

100Expected 17/11/2026

Cut Tape

$1.30

$0.817

$0.536

$0.418

Reel

$0.323

View

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

NTC (Negative Temperature Coefficient) Thermistors Assembly Probe HT1 Type R100=3.3kOhms 2.5% Temp. Range -20 to 180

PT3H-51F-HT1
Shibaura Electronics
1: $6.06
99In Stock
New Product

Mfr. Part No.
PT3H-51F-HT1

Mouser Part No
603-PT3H-51F-HT1

New Product

Shibaura Electronics

NTC (Negative Temperature Coefficient) Thermistors Assembly Probe HT1 Type R100=3.3kOhms 2.5% Temp. Range -20 to 180

Learn More

Datasheet

99In Stock

$6.06

$5.52

$4.69

$4.49

View

Min.: 1
Mult.: 1

NTC (Negative Temperature Coefficient) Thermistors Assembly Probe EP1 Type R100=3.3kOhms 5% Temp. Range -30 to 120

PT3M-51F-EP1
Shibaura Electronics
1: $6.06
49In Stock
100Expected 16/12/2026
New Product

Mfr. Part No.
PT3M-51F-EP1

Mouser Part No
603-PT3M-51F-EP1

New Product

Shibaura Electronics

NTC (Negative Temperature Coefficient) Thermistors Assembly Probe EP1 Type R100=3.3kOhms 5% Temp. Range -30 to 120

Learn More

Datasheet

49In Stock

100Expected 16/12/2026

$6.06

$5.52

$4.69

$4.49

View

Min.: 1
Mult.: 1

ESD Protection Diodes / TVS Diodes SOD323 12V 400W BIDIR

CDSOD323-T12SC-Q
Bourns
1: $1.20
1,991In Stock
New Product

Mfr. Part No.
CDSOD323-T12SC-Q

Mouser Part No
652-CDSOD323-T12SC-Q

New Product

Bourns

ESD Protection Diodes / TVS Diodes SOD323 12V 400W BIDIR

Learn More

Datasheet

1,991In Stock

Cut Tape

$1.20

$0.75

$0.493

$0.384

Reel

$0.297

View

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

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

ESR3XLDB0315XI
Littelfuse
1: $579.74
3In Stock
New Product

Mfr. Part No.
ESR3XLDB0315XI

Mouser Part No
576-ESR3XLDB0315XI

New Product

Littelfuse

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

Learn More

Datasheet

3In Stock

$579.74

$476.03

$433.31

Quote

Min.: 1
Mult.: 1

Industrial & Electrical Fuses Specialty Fuses POWR-SPEED SQB ESR 1500VDC 3XL BOLT 500A

ESR3XLUB0500XI
Littelfuse
1: $608.50
3In Stock
New Product

Mfr. Part No.
ESR3XLUB0500XI

Mouser Part No
576-ESR3XLUB0500XI

New Product

Littelfuse

Industrial & Electrical Fuses Specialty Fuses POWR-SPEED SQB ESR 1500VDC 3XL BOLT 500A

Learn More

Datasheet

3In Stock

$608.50

$517.93

$464.38

Quote

Min.: 1
Mult.: 1

Circuit Protection

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