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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: 359’646

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Part #

ESD Protection Diodes / TVS Diodes 20V 2.2A 4 CHANNEL

SP724AHTG
Littelfuse
1: CHF 1.52
113’467In Stock

Mfr. Part No.
SP724AHTG

Mouser Part No
576-SP724AHTG

Littelfuse

ESD Protection Diodes / TVS Diodes 20V 2.2A 4 CHANNEL

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Datasheet

113’467In Stock

Cut Tape

CHF 1.52

CHF 0.854

CHF 0.762

CHF 0.685

CHF 0.675

Reel

CHF 0.633

MouseReel Available

Min.: 1
Mult.: 1

: 3’000

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

LTC4368IMS-2#PBF
Analog Devices
1: CHF 7.04
9’652In Stock

Mfr. Part No.
LTC4368IMS-2#PBF

Mouser Part No
584-LTC4368IMS2PBF

Analog Devices

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

Datasheet

9’652In Stock

CHF 7.04

CHF 5.34

CHF 5.09

CHF 4.42

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Min.: 1
Mult.: 1
Max.: 1’000

ESD Protection Diodes / TVS Diodes Complete USB Port Pr ot Device

TPD4S014DSQR
Texas Instruments
1: CHF 1.26
26’712In Stock

Mfr. Part No.
TPD4S014DSQR

Mouser Part No
595-TPD4S014DSQR

Texas Instruments

ESD Protection Diodes / TVS Diodes Complete USB Port Pr ot Device

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Datasheet

26’712In Stock

Cut Tape

CHF 1.26

CHF 1.01

CHF 0.861

CHF 0.787

Reel

CHF 0.727

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MouseReel Available

Min.: 1
Mult.: 1

: 3’000

NTC (Negative Temperature Coefficient) Thermistors THERMISTOR

311P18-06S7R6
TE Connectivity / Measurement Specialties
1: CHF 465.70
41In Stock

Mfr. Part No.
311P18-06S7R6

Mouser Part No
657-311P18-06S7R6

TE Connectivity / Measurement Specialties

NTC (Negative Temperature Coefficient) Thermistors THERMISTOR

Datasheet

41In Stock

CHF 465.70

CHF 425.76

CHF 392.18

CHF 367.71

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Min.: 1
Mult.: 1

ESD Protection Diodes / TVS Diodes Dual, Quad, and Hex High-Speed Different

MAX3208EAUB+T
Analog Devices / Maxim Integrated
1: CHF 4.19
9’993In Stock

Mfr. Part No.
MAX3208EAUB+T

Mouser Part No
700-MAX3208EAUBT

Analog Devices / Maxim Integrated

ESD Protection Diodes / TVS Diodes Dual, Quad, and Hex High-Speed Different

Datasheet

9’993In Stock

Cut Tape

CHF 4.19

CHF 2.33

CHF 2.12

CHF 1.87

Reel

CHF 1.63

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MouseReel Available

Min.: 1
Mult.: 1

: 2’500

SCRs 20A If; 1200V Vr TO-247AD 3L

VS-30TPS12LHM3
Vishay Semiconductors
1: CHF 4.75
6’642In Stock

Mfr. Part No.
VS-30TPS12LHM3

Mouser Part No
78-VS-30TPS12LHM3

Vishay Semiconductors

SCRs 20A If; 1200V Vr TO-247AD 3L

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Datasheet

6’642In Stock

CHF 4.75

CHF 2.76

CHF 2.39

CHF 1.98

Min.: 1
Mult.: 1

ESD Protection Diodes / TVS Diodes 33V 200W UNI-DIR SZSMF AEC-Q101

SZSMF33AT1G
Littelfuse
1: CHF 0.532
178’751In Stock

Mfr. Part No.
SZSMF33AT1G

Mouser Part No
863-SZSMF33AT1G

Littelfuse

ESD Protection Diodes / TVS Diodes 33V 200W UNI-DIR SZSMF AEC-Q101

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Datasheet

178’751In Stock

Cut Tape

CHF 0.532

CHF 0.286

CHF 0.215

CHF 0.164

Reel

CHF 0.126

View

MouseReel Available

Min.: 1
Mult.: 1

: 3’000

ESD Protection Diodes / TVS Diodes 8-Line TVS Array Low Capacitance

RCLAMP0508M.TBT
Semtech
1: CHF 2.44
34’966In Stock

Mfr. Part No.
RCLAMP0508M.TBT

Mouser Part No
947-RCLAMP0508M.TBT

Semtech

ESD Protection Diodes / TVS Diodes 8-Line TVS Array Low Capacitance

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Datasheet

34’966In Stock

Cut Tape

CHF 2.44

CHF 2.03

CHF 1.31

Reel

CHF 1.20

CHF 1.10

CHF 1.08

MouseReel Available

Min.: 1
Mult.: 1

: 500

Circuit Breaker Accessories VARI-DEPTH H&LE MECH 4 SERIES C CB F FRM

373D958G22
Eaton Electrical
1: CHF 188.74
1In Stock
New Product

Mfr. Part No.
373D958G22

Mouser Part No
504-373D958G22

New Product

Eaton Electrical

Circuit Breaker Accessories VARI-DEPTH H&LE MECH 4 SERIES C CB F FRM

Datasheet

1In Stock

CHF 188.74

CHF 146.94

CHF 137.59

CHF 125.55

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Min.: 1
Mult.: 1

Circuit Breaker Accessories LG Handle Mech Close Couple Black

LHMCCB
Eaton Electrical
1: CHF 283.10
1In Stock
New Product

Mfr. Part No.
LHMCCB

Mouser Part No
504-LHMCCB

New Product

Eaton Electrical

Circuit Breaker Accessories LG Handle Mech Close Couple Black

Datasheet

1In Stock

CHF 283.10

CHF 217.25

CHF 204.49

CHF 183.67

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Min.: 1
Mult.: 1

Thermal Cut-offs TCO, High Current, SMD, 85C, Self Hold AEC-Q200

SD85ABB
Bourns
1: CHF 2.17
3’758In Stock

Mfr. Part No.
SD85ABB

Mouser Part No
652-SD85ABB

Bourns

Thermal Cut-offs TCO, High Current, SMD, 85C, Self Hold AEC-Q200

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Datasheet

3’758In Stock

Cut Tape

CHF 2.17

CHF 1.88

CHF 1.53

CHF 1.29

View

Reel

CHF 0.858

MouseReel Available

Min.: 1
Mult.: 1

: 4’000

Circuit Breaker Accessories 1A/1B ALARM SW

MA1L1RPK
Eaton Electrical
1: CHF 460.99
1In Stock
New Product

Mfr. Part No.
MA1L1RPK

Mouser Part No
504-MA1L1RPK

New Product

Eaton Electrical

Circuit Breaker Accessories 1A/1B ALARM SW

1In Stock

CHF 460.99

CHF 339.23

CHF 329.32

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Min.: 1
Mult.: 1

ESD Protection Diodes / TVS Diodes 600W,28V 5%, SlimSMA BIDIR TVS

SMA6F28CA-M3/H
Vishay Semiconductors
1: CHF 0.555
3’460In Stock
New Product

Mfr. Part No.
SMA6F28CA-M3/H

Mouser Part No
78-SMA6F28CA-M3\H

New Product

Vishay Semiconductors

ESD Protection Diodes / TVS Diodes 600W,28V 5%, SlimSMA BIDIR TVS

Datasheet

3’460In Stock

Cut Tape

CHF 0.555

CHF 0.341

CHF 0.218

CHF 0.166

Reel

CHF 0.127

View

Min.: 1
Mult.: 1

: 3’500

Thermal Cut-offs TCO, High Current, SMD, 55C, Self Hold AEC-Q200

SD55ABB
Bourns
1: CHF 1.89
3’194In Stock

Mfr. Part No.
SD55ABB

Mouser Part No
652-SD55ABB

Bourns

Thermal Cut-offs TCO, High Current, SMD, 55C, Self Hold AEC-Q200

Learn More

Datasheet

3’194In Stock

Cut Tape

CHF 1.89

CHF 1.75

CHF 1.74

CHF 1.45

View

Reel

CHF 0.858

MouseReel Available

Min.: 1
Mult.: 1

: 4’000

Thermal Cut-offs TCO, High Current, Axial Lead, 55C, Self Hold AEC-Q200

AD55ABB
Bourns
1: CHF 1.76
2’467In Stock

Mfr. Part No.
AD55ABB

Mouser Part No
652-AD55ABB

Bourns

Thermal Cut-offs TCO, High Current, Axial Lead, 55C, Self Hold AEC-Q200

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Datasheet

2’467In Stock

CHF 1.76

CHF 1.63

CHF 1.26

CHF 1.11

View

Min.: 1
Mult.: 1

Thermal Cut-offs TCO, High Current, SMD, 82C, non Self Hold AEC-Q200

SD82WBB
Bourns
1: CHF 1.84
4’997In Stock

Mfr. Part No.
SD82WBB

Mouser Part No
652-SD82WBB

Bourns

Thermal Cut-offs TCO, High Current, SMD, 82C, non Self Hold AEC-Q200

Learn More

Datasheet

4’997In Stock

Cut Tape

CHF 1.84

CHF 1.70

CHF 1.69

CHF 1.41

View

Reel

CHF 0.837

MouseReel Available

Min.: 1
Mult.: 1

: 4’000

Industrial & Electrical Fuses PDF EJO-1 FI 38KV 40E

9F60FPK040
Mersen
1: CHF 5’127.47
1In Stock
New Product

Mfr. Part No.
9F60FPK040

Mouser Part No
737-9F60FPK040

New Product

Mersen

Industrial & Electrical Fuses PDF EJO-1 FI 38KV 40E

Datasheet

1In Stock

CHF 5’127.47

Min.: 1
Mult.: 1

Industrial Surge Protectors TLP410UCUFOAM

TLP410UCUFOAM
Tripp Lite
Restricted Availability

Mfr. Part No.
TLP410UCUFOAM

Mouser Part No
545-TLP410UCUFOAM

Tripp Lite

Industrial Surge Protectors TLP410UCUFOAM

Datasheet

Restricted Availability

ESD Protection Diodes / TVS Diodes 1.5KW,51V 5%,UNIDIR,SMC TVS

1.5SMC51AHE3_A/I
Vishay Semiconductors
1: CHF 0.964
3’481In Stock

Mfr. Part No.
1.5SMC51AHE3_A/I

Mouser Part No
78-1.5SMC51AHE3_A/I

Vishay Semiconductors

ESD Protection Diodes / TVS Diodes 1.5KW,51V 5%,UNIDIR,SMC TVS

Learn More

Datasheet

3’481In Stock

Cut Tape

CHF 0.964

CHF 0.605

CHF 0.396

CHF 0.307

Reel

CHF 0.241

View

Min.: 1
Mult.: 1

: 3’500

NTC (Negative Temperature Coefficient) Thermistors

NCU15XW152E60RC
Murata Electronics
1: CHF 0.105
9’775In Stock
New Product

Mfr. Part No.
NCU15XW152E60RC

Mouser Part No
81-NCU15XW152E60RC

New Product

Murata Electronics

NTC (Negative Temperature Coefficient) Thermistors

Learn More

Datasheet

9’775In Stock

CHF 0.105

CHF 0.09

CHF 0.08

CHF 0.066

View

Min.: 1
Mult.: 1

Industrial & Electrical Fuses FUSE BASE, LV HRC, 160A, 660V,1-POLE

3NH3030
Siemens
1: CHF 103.96
6In Stock

Mfr. Part No.
3NH3030

Mouser Part No
982-3NH3030

Siemens

Industrial & Electrical Fuses FUSE BASE, LV HRC, 160A, 660V,1-POLE

Datasheet

6In Stock

CHF 103.96

CHF 92.70

CHF 85.31

CHF 76.07

CHF 75.43

Min.: 1
Mult.: 1

Circuit Breakers MINIATURE CIRCUIT BREAKER 240V 25A

QOU225H5283
Schneider Electric
1: CHF 143.05
1In Stock
New At Mouser

Mfr. Part No.
QOU225H5283

Mouser Part No
996-QOU225H5283

New At Mouser

Schneider Electric

Circuit Breakers MINIATURE CIRCUIT BREAKER 240V 25A

Datasheet

1In Stock

CHF 143.05

CHF 133.44

CHF 127.03

CHF 120.83

View

Min.: 1
Mult.: 1

Gas Discharge Tubes - GDTs / Gas Plasma Arrestors NextGen HV GDT 8 mm 1100 V

GDT28H-110-B
Bourns
1: CHF 1.85
201In Stock

Mfr. Part No.
GDT28H-110-B

Mouser Part No
652-GDT28H-110-B

Bourns

Gas Discharge Tubes - GDTs / Gas Plasma Arrestors NextGen HV GDT 8 mm 1100 V

Learn More

Datasheet

201In Stock

CHF 1.85

CHF 1.52

CHF 1.22

CHF 1.09

View

Min.: 1
Mult.: 1

ESD Protection Diodes / TVS Diodes 400W,30V 5%,BIDIR,SMA TVS

P4SMA30CAHE3_A/I
Vishay Semiconductors
1: CHF 0.572
2’246In Stock
15’000Expected 9/2/2026

Mfr. Part No.
P4SMA30CAHE3_A/I

Mouser Part No
78-P4SMA30CAHE3_A/I

Vishay Semiconductors

ESD Protection Diodes / TVS Diodes 400W,30V 5%,BIDIR,SMA TVS

Learn More

Datasheet

2’246In Stock

15’000Expected 9/2/2026

Cut Tape

CHF 0.572

CHF 0.354

CHF 0.227

CHF 0.174

Reel

CHF 0.117

View

Min.: 1
Mult.: 1

: 7’500

ESD Protection Diodes / TVS Diodes 600W,300V 5%,UNIDIR,SMB TVS

P6SMB300AHM3_D/H
Vishay Semiconductors
1: CHF 1.02
4’500In Stock

Mfr. Part No.
P6SMB300AHM3_D/H

Mouser Part No
78-P6SMB300AHM3DH

Vishay Semiconductors

ESD Protection Diodes / TVS Diodes 600W,300V 5%,UNIDIR,SMB TVS

Learn More

Datasheet

4’500In Stock

Cut Tape

CHF 1.02

CHF 0.64

CHF 0.42

CHF 0.328

Reel

CHF 0.296

View

Min.: 1
Mult.: 1

: 750

Circuit Protection

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