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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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Part #

ESD Protection Diodes / TVS Diodes 600W,60V 5%,UNIDIR,SMB TVS

SMBJ60AHE3_B/I
Vishay Semiconductors
1: $1.05
2,843In Stock

Mfr. Part #
SMBJ60AHE3_B/I

Mouser Part #
78-SMBJ60AHE3BI

Vishay Semiconductors

ESD Protection Diodes / TVS Diodes 600W,60V 5%,UNIDIR,SMB TVS

Learn More

Datasheet

2,843In Stock

Cut Tape

$1.05

$0.651

$0.42

$0.32

Reel

$0.247

View

Min.: 1
Mult.: 1

: 3,200

ESD Protection Diodes / TVS Diodes ESD 3.3V

VCUT03G1-SD0-G4-08
Vishay Semiconductors
1: $0.442
27,120In Stock

Mfr. Part #
VCUT03G1-SD0-G4-08

Mouser Part #
78-VCUT03G1SD0G408

Vishay Semiconductors

ESD Protection Diodes / TVS Diodes ESD 3.3V

Datasheet

27,120In Stock

Cut Tape

$0.442

$0.308

$0.151

$0.126

View

Reel

$0.056

Min.: 1
Mult.: 1

: 15,000

NTC Thermistors

NCP02XH103D05RH
Murata Electronics
1: $0.273
9,383In Stock

Mfr. Part #
NCP02XH103D05RH

Mouser Part #
81-NCP02XH103D05RH

Murata Electronics

NTC Thermistors

Learn More

Datasheet

9,383In Stock

Cut Tape

$0.273

$0.241

$0.212

$0.17

View

Reel

$0.113

Min.: 1
Mult.: 1

: 20,000

Circuit Breaker Accessories MPR SURGE SUPPRESSOR

MPR-SS
L-Com
1: $219.62
5In Stock
New At Mouser

Mfr. Part #
MPR-SS

Mouser Part #
17-MPR-SS

New At Mouser

L-Com

Circuit Breaker Accessories MPR SURGE SUPPRESSOR

5In Stock

$219.62

$197.02

$195.22

$191.63

View

Min.: 1
Mult.: 1

ESD Protection Diodes / TVS Diodes 400W,16V 5%,BIDIR,SMA TVS

P4SMA16CAHM3_A/I
Vishay Semiconductors
1: $1.11
7,180In Stock

Mfr. Part #
P4SMA16CAHM3_A/I

Mouser Part #
78-P4SMA16CAHM3_A/I

Vishay Semiconductors

ESD Protection Diodes / TVS Diodes 400W,16V 5%,BIDIR,SMA TVS

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Datasheet

7,180In Stock

Cut Tape

$1.11

$0.688

$0.445

$0.341

Reel

$0.241

View

Min.: 1
Mult.: 1

: 7,500

ESD Protection Diodes / TVS Diodes 600W,33V 5%,UNIDIR,SMB TVS

SM6T33AHE3_B/I
Vishay Semiconductors
1: $1.05
2,823In Stock

Mfr. Part #
SM6T33AHE3_B/I

Mouser Part #
78-SM6T33AHE3BI

Vishay Semiconductors

ESD Protection Diodes / TVS Diodes 600W,33V 5%,UNIDIR,SMB TVS

Learn More

Datasheet

2,823In Stock

Cut Tape

$1.05

$0.651

$0.42

$0.32

Reel

$0.247

View

Min.: 1
Mult.: 1

: 3,200

ESD Protection Diodes / TVS Diodes 600W,16V 5%,UNIDIR,SMB TVS

SMBJ16AHE3_B/H
Vishay Semiconductors
1: $1.04
7,339In Stock

Mfr. Part #
SMBJ16AHE3_B/H

Mouser Part #
78-SMBJ16AHE3BH

Vishay Semiconductors

ESD Protection Diodes / TVS Diodes 600W,16V 5%,UNIDIR,SMB TVS

Learn More

Datasheet

7,339In Stock

Cut Tape

$1.04

$0.65

$0.419

$0.319

Reel

$0.287

View

Min.: 1
Mult.: 1

: 750

ESD Protection Diodes / TVS Diodes 600W,24V 5%,UNIDIR,SMB TVS

SMBJ24AHE3_B/H
Vishay Semiconductors
1: $1.00
8,170In Stock

Mfr. Part #
SMBJ24AHE3_B/H

Mouser Part #
78-SMBJ24AHE3BH

Vishay Semiconductors

ESD Protection Diodes / TVS Diodes 600W,24V 5%,UNIDIR,SMB TVS

Learn More

Datasheet

8,170In Stock

Cut Tape

$1.00

$0.614

$0.397

$0.207

Reel

$0.19

Min.: 1
Mult.: 1

: 750

NTC Thermistors NTC,10K,1%,0402,125C,AEC-Q200,ECO

NTCGS103JF103FT7
TDK
1: $0.13
25,463In Stock

Mfr. Part #
NTCGS103JF103FT7

Mouser Part #
810-NTCGS103JF103FT7

TDK

NTC Thermistors NTC,10K,1%,0402,125C,AEC-Q200,ECO

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Datasheet

25,463In Stock

Cut Tape

$0.13

$0.105

$0.091

$0.086

Reel

$0.057

View

MouseReel Available

Min.: 1
Mult.: 1

: 10,000

Circuit Breakers

IUGH34-9414-1
AIRPAX
1: $191.69
2In Stock

Mfr. Part #
IUGH34-9414-1

Mouser Part #
874-IUGH34-9414-1

AIRPAX

Circuit Breakers

2In Stock

$191.69

$181.61

$171.54

$165.61

Min.: 1
Mult.: 1

Circuit Breakers MotBreak GV4PE Therm/Mag 115A 50kA Elink

GV4PE115N
Schneider Electric
1: $1,525.33
1In Stock
New At Mouser

Mfr. Part #
GV4PE115N

Mouser Part #
996-GV4PE115N

New At Mouser

Schneider Electric

Circuit Breakers MotBreak GV4PE Therm/Mag 115A 50kA Elink

Datasheet

1In Stock

$1,525.33

$1,424.88

Min.: 1
Mult.: 1

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

AD55ABB
Bourns
1: $2.85
2,467In Stock

Mfr. Part #
AD55ABB

Mouser Part #
652-AD55ABB

Bourns

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

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Datasheet

2,467In Stock

$2.85

$2.63

$1.96

$1.76

View

Min.: 1
Mult.: 1

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

SD82WBB
Bourns
1: $2.98
4,997In Stock

Mfr. Part #
SD82WBB

Mouser Part #
652-SD82WBB

Bourns

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

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Datasheet

4,997In Stock

Cut Tape

$2.98

$2.76

$2.74

$2.29

View

Reel

$1.30

MouseReel Available

Min.: 1
Mult.: 1

: 4,000

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

GDT28H-110-B
Bourns
1: $2.99
201In Stock

Mfr. Part #
GDT28H-110-B

Mouser Part #
652-GDT28H-110-B

Bourns

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

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Datasheet

201In Stock

$2.99

$2.44

$1.96

$1.76

View

Min.: 1
Mult.: 1

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

P4SMA30CAHE3_A/I
Vishay Semiconductors
1: $0.923
2,246In Stock
15,000Expected 9/9/2026

Mfr. Part #
P4SMA30CAHE3_A/I

Mouser Part #
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 9/9/2026

Cut Tape

$0.923

$0.571

$0.368

$0.281

Reel

$0.189

View

Min.: 1
Mult.: 1

: 7,500

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

P6SMB300AHM3_D/H
Vishay Semiconductors
1: $1.65
4,500In Stock

Mfr. Part #
P6SMB300AHM3_D/H

Mouser Part #
78-P6SMB300AHM3DH

Vishay Semiconductors

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

Learn More

Datasheet

4,500In Stock

Cut Tape

$1.65

$1.03

$0.679

$0.529

Reel

$0.477

View

Min.: 1
Mult.: 1

: 750

ESD Protection Diodes / TVS Diodes 400W,45V 5%,BIDIR,SMA TVS

SMAJ45CAHE3_A/H
Vishay Semiconductors
1: $0.91
9,000In Stock

Mfr. Part #
SMAJ45CAHE3_A/H

Mouser Part #
78-SMAJ45CAHE3_A/H

Vishay Semiconductors

ESD Protection Diodes / TVS Diodes 400W,45V 5%,BIDIR,SMA TVS

Datasheet

9,000In Stock

Cut Tape

$0.91

$0.569

$0.367

$0.28

Reel

$0.216

View

Min.: 1
Mult.: 1

: 1,800

ESD Protection Diodes / TVS Diodes 400W,6.0V 5%,BIDIR,SMA TVS

SMAJ6.0CAHE3_A/H
Vishay Semiconductors
1: $0.923
8,986In Stock

Mfr. Part #
SMAJ6.0CAHE3_A/H

Mouser Part #
78-SMAJ6.0CAHE3_A/H

Vishay Semiconductors

ESD Protection Diodes / TVS Diodes 400W,6.0V 5%,BIDIR,SMA TVS

Datasheet

8,986In Stock

Cut Tape

$0.923

$0.568

$0.367

$0.28

Reel

$0.211

View

MouseReel Available

Min.: 1
Mult.: 1

: 1,800

ESD Protection Diodes / TVS Diodes 600W,26V 5%,UNIDIR,SMB TVS

SMBJ26AHE3_B/I
Vishay Semiconductors
1: $1.05
1,899In Stock

Mfr. Part #
SMBJ26AHE3_B/I

Mouser Part #
78-SMBJ26AHE3BI

Vishay Semiconductors

ESD Protection Diodes / TVS Diodes 600W,26V 5%,UNIDIR,SMB TVS

Learn More

Datasheet

1,899In Stock

Cut Tape

$1.05

$0.651

$0.42

$0.32

Reel

$0.247

View

Min.: 1
Mult.: 1

: 3,200

ESD Protection Diodes / TVS Diodes 600W,5.0V 5%,UNIDIR,SMB TVS

SMBJ5.0AHM3_B/I
Vishay Semiconductors
1: $1.21
6,376In Stock

Mfr. Part #
SMBJ5.0AHM3_B/I

Mouser Part #
78-SMBJ5.0AHM3BI

Vishay Semiconductors

ESD Protection Diodes / TVS Diodes 600W,5.0V 5%,UNIDIR,SMB TVS

Learn More

Datasheet

6,376In Stock

Cut Tape

$1.21

$0.751

$0.486

$0.373

Reel

$0.29

View

MouseReel Available

Min.: 1
Mult.: 1

: 3,200

NTC Thermistors

NCP02XH103F05RH
Murata Electronics
1: $0.156
11,269In Stock
20,000Expected 3/8/2027

Mfr. Part #
NCP02XH103F05RH

Mouser Part #
81-NCP02XH103F05RH

Murata Electronics

NTC Thermistors

Learn More

Datasheet

11,269In Stock

20,000Expected 3/8/2027

Cut Tape

$0.156

$0.125

$0.111

$0.092

View

Reel

$0.061

Min.: 1
Mult.: 1

: 20,000

NTC Thermistors

NCU15WF104FBSRC
Murata Electronics
1: $0.169
9,268In Stock

Mfr. Part #
NCU15WF104FBSRC

Mouser Part #
81-NCU15WF104FBSRC

Murata Electronics

NTC Thermistors

Learn More

Datasheet

9,268In Stock

$0.169

$0.146

$0.129

$0.105

View

Min.: 1
Mult.: 1

NTC Thermistors

NCU15WM474E6SRC
Murata Electronics
1: $0.143
6,765In Stock

Mfr. Part #
NCU15WM474E6SRC

Mouser Part #
81-NCU15WM474E6SRC

Murata Electronics

NTC Thermistors

Learn More

Datasheet

6,765In Stock

$0.143

$0.112

$0.099

$0.085

View

Min.: 1
Mult.: 1

NTC Thermistors

NCU15XV103E60RC
Murata Electronics
1: $0.156
5,723In Stock

Mfr. Part #
NCU15XV103E60RC

Mouser Part #
81-NCU15XV103E60RC

Murata Electronics

NTC Thermistors

Learn More

Datasheet

5,723In Stock

$0.156

$0.144

$0.127

$0.104

View

Min.: 1
Mult.: 1

NTC Thermistors

NCU15XW222E6SRC
Murata Electronics
1: $0.143
9,965In Stock

Mfr. Part #
NCU15XW222E6SRC

Mouser Part #
81-NCU15XW222E6SRC

Murata Electronics

NTC Thermistors

Learn More

Datasheet

9,965In Stock

$0.143

$0.112

$0.099

$0.085

View

Min.: 1
Mult.: 1

Circuit Protection

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