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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 #

Triacs 400V 30A ALTNSTR ISO 50-50-50 mA TO220

Q4030LH5TP
Littelfuse
1: $6.99
1,233In Stock

Mfr. Part No.
Q4030LH5TP

Mouser Part No
576-Q4030LH5TP

Littelfuse

Triacs 400V 30A ALTNSTR ISO 50-50-50 mA TO220

Datasheet

1,233In Stock

$6.99

$3.68

Min.: 1
Mult.: 1

Triacs 600V 16A ALTNSTR ISO 10-10-10 mA TO220

Q6016LH2TP
Littelfuse
1: $5.95
1,377In Stock

Mfr. Part No.
Q6016LH2TP

Mouser Part No
576-Q6016LH2TP

Littelfuse

Triacs 600V 16A ALTNSTR ISO 10-10-10 mA TO220

Datasheet

1,377In Stock

$5.95

$3.07

$2.80

$2.73

Min.: 1
Mult.: 1

Triacs 800V 8A 35-35-35mA

Q8008LH4TP
Littelfuse
1: $5.12
1,983In Stock

Mfr. Part No.
Q8008LH4TP

Mouser Part No
576-Q8008LH4TP

Littelfuse

Triacs 800V 8A 35-35-35mA

Datasheet

1,983In Stock

$5.12

$2.60

$2.36

$2.23

Min.: 1
Mult.: 1

Triacs 800V 12A 50-50-50mA

Q8012RH5TP
Littelfuse
1: $5.26
965In Stock

Mfr. Part No.
Q8012RH5TP

Mouser Part No
576-Q8012RH5TP

Littelfuse

Triacs 800V 12A 50-50-50mA

Datasheet

965In Stock

$5.26

$3.46

$2.45

$2.32

Min.: 1
Mult.: 1

Triacs 800V 16A

Q8016NH4RP
Littelfuse
1: $6.91
997In Stock

Mfr. Part No.
Q8016NH4RP

Mouser Part No
576-Q8016NH4RP

Littelfuse

Triacs 800V 16A

Learn More

Datasheet

997In Stock

Cut Tape

$6.91

$4.89

$3.50

Reel

$3.16

MouseReel Available

Min.: 1
Mult.: 1

: 500

Triacs TRIAC TO263 800V 25A HT ALTN

QJ8025NH4RP
Littelfuse
1: $10.12
1,322In Stock

Mfr. Part No.
QJ8025NH4RP

Mouser Part No
576-QJ8025NH4RP

Littelfuse

Triacs TRIAC TO263 800V 25A HT ALTN

Learn More

Datasheet

1,322In Stock

Cut Tape

$10.12

$6.84

$5.11

Reel

$4.83

Min.: 1
Mult.: 1

: 500

SCRs 600V 40A 15mA TO263 High Temp 150c SCRs

SJ6040N2RP
Littelfuse
1: $9.40
745In Stock

Mfr. Part No.
SJ6040N2RP

Mouser Part No
576-SJ6040N2RP

Littelfuse

SCRs 600V 40A 15mA TO263 High Temp 150c SCRs

Learn More

Datasheet

745In Stock

Cut Tape

$9.40

$6.32

$4.62

Reel

$4.38

MouseReel Available

Min.: 1
Mult.: 1

: 500

ESD Protection Diodes / TVS Diodes 60V 2200W BI-DIR SLD AEC-Q101

SLD60-018
Littelfuse
1: $2.37
5,674In Stock

Mfr. Part No.
SLD60-018

Mouser Part No
576-SLD60-018

Littelfuse

ESD Protection Diodes / TVS Diodes 60V 2200W BI-DIR SLD AEC-Q101

Learn More

Datasheet

5,674In Stock

Cut Tape

$2.37

$2.27

$2.07

$1.60

Reel

$1.56

Min.: 1
Mult.: 1

: 800

ESD Protection Diodes / TVS Diodes 600W 28V 5% Bi-Directional

SMA6J28CA
Littelfuse
1: $0.443
32,679In Stock

Mfr. Part No.
SMA6J28CA

Mouser Part No
576-SMA6J28CA

Littelfuse

ESD Protection Diodes / TVS Diodes 600W 28V 5% Bi-Directional

Datasheet

32,679In Stock

Cut Tape

$0.443

$0.299

$0.215

$0.193

Reel

$0.134

View

MouseReel Available

Min.: 1
Mult.: 1

: 5,000

ESD Protection Diodes / TVS Diodes 400W 250V 5% Uni-Directional

SMAJ250A
Littelfuse
1: $0.272
8,537In Stock

Mfr. Part No.
SMAJ250A

Mouser Part No
576-SMAJ250A

Littelfuse

ESD Protection Diodes / TVS Diodes 400W 250V 5% Uni-Directional

Learn More

Datasheet

8,537In Stock

Cut Tape

$0.272

$0.236

$0.227

Reel

$0.226

$0.212

MouseReel Available

Min.: 1
Mult.: 1

: 5,000

ESD Protection Diodes / TVS Diodes 400W 350V 5% Bi-Directional

SMAJ350CA
Littelfuse
1: $0.715
12,901In Stock

Mfr. Part No.
SMAJ350CA

Mouser Part No
576-SMAJ350CA

Littelfuse

ESD Protection Diodes / TVS Diodes 400W 350V 5% Bi-Directional

Learn More

Datasheet

12,901In Stock

Cut Tape

$0.715

$0.305

$0.275

$0.273

$0.267

Reel

$0.259

MouseReel Available

Min.: 1
Mult.: 1

: 5,000

ESD Protection Diodes / TVS Diodes 600W 250V 5% Uni-Directional

SMBJ250A
Littelfuse
1: $0.30
13,530In Stock

Mfr. Part No.
SMBJ250A

Mouser Part No
576-SMBJ250A

Littelfuse

ESD Protection Diodes / TVS Diodes 600W 250V 5% Uni-Directional

Learn More

Datasheet

13,530In Stock

Cut Tape

$0.30

$0.283

$0.267

Reel

$0.237

$0.232

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

ESD Protection Diodes / TVS Diodes 30pF30kV Bi 0201 Flip Chip

SP1005-01WTG
Littelfuse
1: $0.30
80,189In Stock

Mfr. Part No.
SP1005-01WTG

Mouser Part No
576-SP1005-01WTG

Littelfuse

ESD Protection Diodes / TVS Diodes 30pF30kV Bi 0201 Flip Chip

Learn More

Datasheet

80,189In Stock

Cut Tape

$0.30

$0.117

$0.112

Reel

$0.09

MouseReel Available

Min.: 1
Mult.: 1

: 10,000

ESD Protection Diodes / TVS Diodes .3pF 10KV 28V SOD8820

SP3130-01ETG
Littelfuse
1: $0.272
17,695In Stock

Mfr. Part No.
SP3130-01ETG

Mouser Part No
576-SP3130-01ETG

Littelfuse

ESD Protection Diodes / TVS Diodes .3pF 10KV 28V SOD8820

Learn More

Datasheet

17,695In Stock

Cut Tape

$0.272

$0.142

$0.136

Reel

$0.129

MouseReel Available

Min.: 1
Mult.: 1

: 10,000

Varistors SURFACE MOUNT SM7 VARISTORS

V50SM7
Littelfuse
1: $1.97
2,335In Stock

Mfr. Part No.
V50SM7

Mouser Part No
576-V50SM7

Littelfuse

Varistors SURFACE MOUNT SM7 VARISTORS

Learn More

Datasheet

2,335In Stock

Cut Tape

$1.97

$1.62

$1.54

$1.39

Reel

$1.29

View

MouseReel Available

Min.: 1
Mult.: 1

: 600

Board Mount Surge Protectors Overvoltage, Undervoltage & Reverse S Pr

LTC4365CDDB-1#TRMPBF
Analog Devices
1: $7.25
1,975In Stock

Mfr. Part No.
LTC4365CDDB-1#TRMPBF

Mouser Part No
584-C4365CDDB-1TMPF

Analog Devices

Board Mount Surge Protectors Overvoltage, Undervoltage & Reverse S Pr

Datasheet

1,975In Stock

Cut Tape

$7.25

$5.53

$5.11

$5.09

Reel

$4.06

View

MouseReel Available

Min.: 1
Mult.: 1

: 500

Board Mount Surge Protectors Surge Stopper w/ Fault Latchoff

LT4356CMS-3#PBF
Analog Devices
1: $10.12
645In Stock

Mfr. Part No.
LT4356CMS-3#PBF

Mouser Part No
584-LT4356CMS-3#PBF

Analog Devices

Board Mount Surge Protectors Surge Stopper w/ Fault Latchoff

Datasheet

645In Stock

$10.12

$7.81

$7.72

$6.86

View

Min.: 1
Mult.: 1

Board Mount Surge Protectors Surge Stopper w/ Fault Latchoff

LT4356HMS-3#PBF
Analog Devices
1: $11.87
692In Stock

Mfr. Part No.
LT4356HMS-3#PBF

Mouser Part No
584-LT4356HMS-3#PBF

Analog Devices

Board Mount Surge Protectors Surge Stopper w/ Fault Latchoff

Datasheet

692In Stock

$11.87

$9.21

$8.12

$7.79

View

Min.: 1
Mult.: 1

Board Mount Surge Protectors Overvoltage Prot Cntr

LTC1696IS6#TRMPBF
Analog Devices
1: $9.72
923In Stock

Mfr. Part No.
LTC1696IS6#TRMPBF

Mouser Part No
584-LTC1696IS6TRMPBF

Analog Devices

Board Mount Surge Protectors Overvoltage Prot Cntr

Datasheet

923In Stock

Cut Tape

$9.72

$7.48

$6.94

$6.92

Reel

$5.55

View

MouseReel Available

Min.: 1
Mult.: 1

: 500

Board Mount Surge Protectors Overvoltage, Undervoltage & Reverse S Pr

LTC4365HDDB#TRPBF
Analog Devices
1: $8.59
3,636In Stock
3,890On Order

Mfr. Part No.
LTC4365HDDB#TRPBF

Mouser Part No
584-LTC4365HDDBTRPBF

Analog Devices

Board Mount Surge Protectors Overvoltage, Undervoltage & Reverse S Pr

Datasheet

3,636In Stock

3,890On Order

Cut Tape

$8.59

$6.59

$6.09

$5.53

View

Reel

$4.70

MouseReel Available

Min.: 1
Mult.: 1

: 2,500

Board Mount Surge Protectors 100V Overvoltage, Undervoltage & Reverse

LTC4367CMS8-1#PBF
Analog Devices
1: $8.41
759In Stock

Mfr. Part No.
LTC4367CMS8-1#PBF

Mouser Part No
584-LTC4367CMS8-1PBF

Analog Devices

Board Mount Surge Protectors 100V Overvoltage, Undervoltage & Reverse

Datasheet

759In Stock

$8.41

$6.45

$6.23

$5.69

View

Min.: 1
Mult.: 1

NTC (Negative Temperature Coefficient) Thermistors 10Kohms 2% 250mm UL Recognized

NTCALUG03A103G251
Vishay / BC Components
1: $8.54
1,200In Stock

Mfr. Part No.
NTCALUG03A103G251

Mouser Part No
594-NTCALUG3A103G251

Vishay / BC Components

NTC (Negative Temperature Coefficient) Thermistors 10Kohms 2% 250mm UL Recognized

Learn More

Datasheet

1,200In Stock

$8.54

$7.32

$6.41

$5.69

View

Min.: 1
Mult.: 1

NTC (Negative Temperature Coefficient) Thermistors 10Kohms 1% 1000mm

NTCLE410E3103F102
Vishay / BC Components
1: $4.08
4,686In Stock

Mfr. Part No.
NTCLE410E3103F102

Mouser Part No
594-NTCL410E3103F102

Vishay / BC Components

NTC (Negative Temperature Coefficient) Thermistors 10Kohms 1% 1000mm

4,686In Stock

$4.08

$3.06

$2.72

$2.59

View

Min.: 1
Mult.: 1

NTC (Negative Temperature Coefficient) Thermistors 10Kohms 2% Radial

NTCLE100E3103GT1
Vishay / BC Components
1: $1.23
3,443In Stock

Mfr. Part No.
NTCLE100E3103GT1

Mouser Part No
594-NTCLE100E3103GT1

Vishay / BC Components

NTC (Negative Temperature Coefficient) Thermistors 10Kohms 2% Radial

Learn More

Datasheet

3,443In Stock

Cut Tape

$1.23

$1.16

$1.09

$1.04

View

Reel

$0.762

Min.: 1
Mult.: 1

: 1,500

NTC (Negative Temperature Coefficient) Thermistors 2.2Kohms 5% SMD

NTCS0603E3222JMT
Vishay / BC Components
1: $0.472
21,274In Stock

Mfr. Part No.
NTCS0603E3222JMT

Mouser Part No
594-NTCS0603E3222JMT

Vishay / BC Components

NTC (Negative Temperature Coefficient) Thermistors 2.2Kohms 5% SMD

Learn More

Datasheet

21,274In Stock

Cut Tape

$0.472

$0.442

$0.39

$0.372

Reel

$0.275

View

MouseReel Available

Min.: 1
Mult.: 1

: 4,000

Circuit Protection

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