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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: 359,642

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Part #

Triacs 600V 25A 50mA HI TEMP TO-220AB Isolated

QJ6025LH5TP
Littelfuse
1: $8.65
908In Stock

Mfr. Part No.
QJ6025LH5TP

Mouser Part No
576-QJ6025LH5TP

Littelfuse

Triacs 600V 25A 50mA HI TEMP TO-220AB Isolated

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Datasheet

908In Stock

$8.65

$5.10

$4.58

Min.: 1
Mult.: 1

SCRs 400V 10A Sensing

S4010LS2TP
Littelfuse
1: $4.09
1,366In Stock

Mfr. Part No.
S4010LS2TP

Mouser Part No
576-S4010LS2TP

Littelfuse

SCRs 400V 10A Sensing

Datasheet

1,366In Stock

$4.09

$2.68

$1.86

$1.69

Min.: 1
Mult.: 1

SCRs 600V 25A

S6025RTP
Littelfuse
1: $5.22
962In Stock

Mfr. Part No.
S6025RTP

Mouser Part No
576-S6025RTP

Littelfuse

SCRs 600V 25A

Datasheet

962In Stock

$5.22

$3.03

$2.34

Min.: 1
Mult.: 1

SCRs 55A 800V

S8055NRP
Littelfuse
1: $9.00
739In Stock

Mfr. Part No.
S8055NRP

Mouser Part No
576-S8055NRP

Littelfuse

SCRs 55A 800V

Datasheet

739In Stock

Cut Tape

$9.00

$6.09

$4.84

Reel

$4.84

MouseReel Available

Min.: 1
Mult.: 1

: 500

ESD Protection Diodes / TVS Diodes 0.3V 3A 0.2pF 12kV WLCSP0201 Bi-dir TVS

SP00R6-01WTG
Littelfuse
1: $1.55
11,721In Stock

Mfr. Part No.
SP00R6-01WTG

Mouser Part No
576-SP00R6-01WTG

Littelfuse

ESD Protection Diodes / TVS Diodes 0.3V 3A 0.2pF 12kV WLCSP0201 Bi-dir TVS

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Datasheet

11,721In Stock

Cut Tape

$1.55

$0.733

$0.631

$0.488

View

Reel

$0.303

MouseReel Available

Min.: 1
Mult.: 1

: 10,000

ESD Protection Diodes / TVS Diodes 12V 100W

SP12-01WTG-C-HV
Littelfuse
1: $0.503
122,238In Stock

Mfr. Part No.
SP12-01WTG-C-HV

Mouser Part No
576-SP12-01WTG-C-HV

Littelfuse

ESD Protection Diodes / TVS Diodes 12V 100W

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Datasheet

122,238In Stock

Cut Tape

$0.503

$0.22

$0.192

$0.143

Reel

$0.071

View

MouseReel Available

Min.: 1
Mult.: 1

: 10,000

Industrial & Electrical Fuses 6A 1500 VDC Solar 30kA Photovoltaic

SPXV006.T
Littelfuse
1: $56.97
183In Stock

Mfr. Part No.
SPXV006.T

Mouser Part No
576-SPXV006.T

Littelfuse

Industrial & Electrical Fuses 6A 1500 VDC Solar 30kA Photovoltaic

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Datasheet

183In Stock

$56.97

$47.27

$36.31

$32.04

View

Min.: 1
Mult.: 1

PTC (Positive Temperature Coefficient) Thermistors .7ohms 20%

PTCCL17H112DBE
Vishay / BC Components
1: $4.27
1,125In Stock

Mfr. Part No.
PTCCL17H112DBE

Mouser Part No
594-2381-663-51121

Vishay / BC Components

PTC (Positive Temperature Coefficient) Thermistors .7ohms 20%

Datasheet

1,125In Stock

$4.27

$3.40

$3.03

$2.88

View

Min.: 1
Mult.: 1

NTC (Negative Temperature Coefficient) Thermistors 4.7Kohms 3%

NTCLE400E3472H
Vishay / BC Components
1: $3.05
2,443In Stock

Mfr. Part No.
NTCLE400E3472H

Mouser Part No
594-NTCLE400E3472H

Vishay / BC Components

NTC (Negative Temperature Coefficient) Thermistors 4.7Kohms 3%

Datasheet

2,443In Stock

$3.05

$2.91

$2.71

$2.57

View

Min.: 1
Mult.: 1

NTC (Negative Temperature Coefficient) Thermistors 47Kohms 5% SMD

NTCS0603E3473JHT
Vishay / BC Components
1: $0.381
9,951In Stock

Mfr. Part No.
NTCS0603E3473JHT

Mouser Part No
594-NTCS0603E3473JHT

Vishay / BC Components

NTC (Negative Temperature Coefficient) Thermistors 47Kohms 5% SMD

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Datasheet

9,951In Stock

Cut Tape

$0.381

$0.358

$0.197

$0.19

Reel

$0.189

MouseReel Available

Min.: 1
Mult.: 1

: 4,000

NTC (Negative Temperature Coefficient) Thermistors Glass Protected NTC Thermistor 0805, 2.2kOhms, 5%, 210mW

NTCS0805E3222JMT
Vishay / BC Components
1: $0.503
10,307In Stock

Mfr. Part No.
NTCS0805E3222JMT

Mouser Part No
594-NTCS0805E3222JMT

Vishay / BC Components

NTC (Negative Temperature Coefficient) Thermistors Glass Protected NTC Thermistor 0805, 2.2kOhms, 5%, 210mW

Datasheet

10,307In Stock

Cut Tape

$0.503

$0.476

$0.422

$0.389

Reel

$0.245

View

MouseReel Available

Min.: 1
Mult.: 1

: 4,000

NTC (Negative Temperature Coefficient) Thermistors 10K 1% 3435K 80MM AWG24

NTCALUG01A103F800L
Vishay / BC Components
1: $7.60
529In Stock

Mfr. Part No.
NTCALUG01A103F800L

Mouser Part No
594-NTLUG01A103F800L

Vishay / BC Components

NTC (Negative Temperature Coefficient) Thermistors 10K 1% 3435K 80MM AWG24

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Datasheet

529In Stock

$7.60

$6.83

$6.56

$6.20

View

Min.: 1
Mult.: 1

PTC (Positive Temperature Coefficient) Thermistors 1% 100-kohm linear t hermistor in 0402 A A 595-TMP6331DECT

TMP6331DECR
Texas Instruments
1: $0.218
37,319In Stock

Mfr. Part No.
TMP6331DECR

Mouser Part No
595-TMP6331DECR

Texas Instruments

PTC (Positive Temperature Coefficient) Thermistors 1% 100-kohm linear t hermistor in 0402 A A 595-TMP6331DECT

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Datasheet

37,319In Stock

Cut Tape

$0.218

$0.199

$0.174

$0.166

Reel

$0.11

View

MouseReel Available

Min.: 1
Mult.: 1

: 10,000

ESD Protection Diodes / TVS Diodes 1500W 130V Bidirect

1.5KE130CA-E3/54
Vishay Semiconductors
1: $1.84
4,224In Stock

Mfr. Part No.
1.5KE130CA-E3/54

Mouser Part No
625-1.5KE130CA-E3

Vishay Semiconductors

ESD Protection Diodes / TVS Diodes 1500W 130V Bidirect

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Datasheet

4,224In Stock

Cut Tape

$1.84

$1.01

$0.846

$0.662

Reel

$0.469

View

Min.: 1
Mult.: 1

: 1,400

ESD Protection Diodes / TVS Diodes 5000W 45V Unidirect

5KP45A-E3/54
Vishay Semiconductors
1: $5.37
1,157In Stock

Mfr. Part No.
5KP45A-E3/54

Mouser Part No
625-5KP45A-E3

Vishay Semiconductors

ESD Protection Diodes / TVS Diodes 5000W 45V Unidirect

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Datasheet

1,157In Stock

Cut Tape

$5.37

$2.91

$2.61

$2.05

Reel

$1.84

Min.: 1
Mult.: 1

: 800

ESD Protection Diodes / TVS Diodes 600W 30V 5% Uni

SMBG30A-E3/52
Vishay Semiconductors
1: $1.31
4,050In Stock

Mfr. Part No.
SMBG30A-E3/52

Mouser Part No
625-SMBG30A-E3

Vishay Semiconductors

ESD Protection Diodes / TVS Diodes 600W 30V 5% Uni

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Datasheet

4,050In Stock

Cut Tape

$1.31

$0.597

$0.567

Reel

$0.566

$0.545

MouseReel Available

Min.: 1
Mult.: 1

: 750

ESD Protection Diodes / TVS Diodes 1500W 5.0V Unidirect

SMCG5.0A-E3/57T
Vishay Semiconductors
1: $3.24
2,054In Stock

Mfr. Part No.
SMCG5.0A-E3/57T

Mouser Part No
625-SMCG5.0A-E3

Vishay Semiconductors

ESD Protection Diodes / TVS Diodes 1500W 5.0V Unidirect

Learn More

Datasheet

2,054In Stock

Cut Tape

$3.24

$1.52

$1.24

$1.04

Reel

$0.96

View

MouseReel Available

Min.: 1
Mult.: 1

: 850

Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 6MM 90V 3POLE RADIAL LEADS GDT

GTCR36-900M-R10
Littelfuse
1: $3.67
1,304In Stock

Mfr. Part No.
GTCR36-900M-R10

Mouser Part No
650-GTCR36-900M-R10

Littelfuse

Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 6MM 90V 3POLE RADIAL LEADS GDT

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Datasheet

1,304In Stock

$3.67

$2.82

$2.22

$2.09

View

Min.: 1
Mult.: 1

Industrial Surge Protectors TTC-6P-3-24DC-PT-I

1061383
Phoenix Contact
1: $280.17
7In Stock

Mfr. Part No.
1061383

Mouser Part No
651-1061383

Phoenix Contact

Industrial Surge Protectors TTC-6P-3-24DC-PT-I

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Datasheet

7In Stock

$280.17

Min.: 1
Mult.: 1

Circuit Breakers CAPAROC E2 12-24DC/2-10A

1110984
Phoenix Contact
1: $116.51
160In Stock

Mfr. Part No.
1110984

Mouser Part No
651-1110984

Phoenix Contact

Circuit Breakers CAPAROC E2 12-24DC/2-10A

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Datasheet

160In Stock

$116.51

Min.: 1
Mult.: 1

Surge Protection Accessories PT 2XEX(i)-BE

2839279
Phoenix Contact
1: $214.43
21In Stock

Mfr. Part No.
2839279

Mouser Part No
651-2839279

Phoenix Contact

Surge Protection Accessories PT 2XEX(i)-BE

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Datasheet

21In Stock

$214.43

Min.: 1
Mult.: 1

Industrial Surge Protectors PT 3-HF-12DC-ST

2858043
Phoenix Contact
1: $252.96
25In Stock

Mfr. Part No.
2858043

Mouser Part No
651-2858043

Phoenix Contact

Industrial Surge Protectors PT 3-HF-12DC-ST

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Datasheet

25In Stock

$252.96

Min.: 1
Mult.: 1

Gas Discharge Tubes - GDTs / Gas Plasma Arrestors GAS DISCHARGE TUBE 2POLE 600VOLT

2027-60-BT1LF
Bourns
1: $2.19
3,035In Stock

Mfr. Part No.
2027-60-BT1LF

Mouser Part No
652-2027-60-BT1LF

Bourns

Gas Discharge Tubes - GDTs / Gas Plasma Arrestors GAS DISCHARGE TUBE 2POLE 600VOLT

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Datasheet

3,035In Stock

Cut Tape

$2.19

$2.03

$1.69

$1.55

Reel

$1.11

View

Min.: 1
Mult.: 1

: 1,000

Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 60volts

2031-15T-SM-RPLF
Bourns
1,500: $0.945
10,500In Stock

Mfr. Part No.
2031-15T-SM-RPLF

Mouser Part No
652-2031-15T-SM-RPLF

Bourns

Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 60volts

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Datasheet

10,500In Stock

Reel

$0.945

$0.87

$0.828

Min.: 1,500
Mult.: 1,500

: 1,500

Gas Discharge Tubes - GDTs / Gas Plasma Arrestors GAS DISCHARGE TUBE HIGH VOLTAGE

2039-110-SM-RPLF
Bourns
1: $1.67
5,236In Stock

Mfr. Part No.
2039-110-SM-RPLF

Mouser Part No
652-2039-110-SM-RPLF

Bourns

Gas Discharge Tubes - GDTs / Gas Plasma Arrestors GAS DISCHARGE TUBE HIGH VOLTAGE

Datasheet

5,236In Stock

Cut Tape

$1.67

$1.54

$1.27

$1.18

Reel

$0.831

View

MouseReel Available

Min.: 1
Mult.: 1

: 1,500

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