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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: 362,093

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Part #

Varistors 35VAC 45VDC 1800pF AEC-Q200

V45MLA1812NRAUTO
Littelfuse
1: $4.15
1,404In Stock

Mfr. Part No.
V45MLA1812NRAUTO

Mouser Part No
576-V45MLA1812NRAUTO

Littelfuse

Varistors 35VAC 45VDC 1800pF AEC-Q200

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Datasheet

1,404In Stock

Cut Tape

$4.15

$2.99

$2.82

$2.41

Reel

$1.75

View

MouseReel Available

Min.: 1
Mult.: 1

: 1,000

Automotive Fuses 500AMP 48VDC 125VAC

0CNN500.V
Littelfuse
1: $92.92
1,117In Stock

Mfr. Part No.
0CNN500.V

Mouser Part No
576-0CNN500.V

Littelfuse

Automotive Fuses 500AMP 48VDC 125VAC

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Datasheet

1,117In Stock

$92.92

$77.06

$53.79

$48.55

Min.: 1
Mult.: 1

ESD Protection Diodes / TVS Diodes TVS Hi Power Diode 30KPA Axial

30KPA30CA
Littelfuse
1: $31.93
1,519In Stock

Mfr. Part No.
30KPA30CA

Mouser Part No
576-30KPA30CA

Littelfuse

ESD Protection Diodes / TVS Diodes TVS Hi Power Diode 30KPA Axial

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Datasheet

1,519In Stock

Cut Tape

$31.93

$24.33

$22.41

$20.93

Reel

$20.93

Min.: 1
Mult.: 1

: 800

Triacs 400V 10A 50-50-50mA

Q4010L5TP
Littelfuse
1: $4.68
11,106In Stock

Mfr. Part No.
Q4010L5TP

Mouser Part No
576-Q4010L5TP

Littelfuse

Triacs 400V 10A 50-50-50mA

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Datasheet

11,106In Stock

$4.68

$2.38

$2.15

$2.01

Min.: 1
Mult.: 1

Industrial Surge Protectors PT-IQ-5-HF-12DC-PT

2801293
Phoenix Contact
1: $523.60
55In Stock

Mfr. Part No.
2801293

Mouser Part No
651-2801293

Phoenix Contact

Industrial Surge Protectors PT-IQ-5-HF-12DC-PT

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Datasheet

55In Stock

$523.60

Min.: 1
Mult.: 1

Circuit Breakers CBMC E4 24DC/1-10ANO

2906032
Phoenix Contact
1: $158.15
402In Stock

Mfr. Part No.
2906032

Mouser Part No
651-2906032

Phoenix Contact

Circuit Breakers CBMC E4 24DC/1-10ANO

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Datasheet

Product Comments

402In Stock

$158.15

Min.: 1
Mult.: 1

SCRs New Input Thyristor - D2PAK-e3

VS-16TTS08STRL-M3
Vishay Semiconductors
1: $6.96
7,244In Stock

Mfr. Part No.
VS-16TTS08STRL-M3

Mouser Part No
78-VS-16TTS08STRL-M3

Vishay Semiconductors

SCRs New Input Thyristor - D2PAK-e3

Datasheet

7,244In Stock

Cut Tape

$6.96

$4.62

$3.29

$2.80

Reel

$2.80

Min.: 1
Mult.: 1

: 800

ESD Protection Diodes / TVS Diodes Zen TVS 600W 58V UNI SOD-123FL TR13

SZSMF6L58AT3G
Littelfuse
1: $0.952
4,000In Stock
New Product

Mfr. Part No.
SZSMF6L58AT3G

Mouser Part No
576-SZSMF6L58AT3G

New Product

Littelfuse

ESD Protection Diodes / TVS Diodes Zen TVS 600W 58V UNI SOD-123FL TR13

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Datasheet

4,000In Stock

Cut Tape

$0.952

$0.585

$0.375

$0.284

Reel

$0.193

View

MouseReel Available

Min.: 1
Mult.: 1

: 5,000

ESD Protection Diodes / TVS Diodes SOD-962 VRMW 15V 1uA TVS Diodes

DF2S20ASL,L3F
Toshiba
1: $0.258
9,260In Stock
New Product

Mfr. Part No.
DF2S20ASL,L3F

Mouser Part No
757-DF2S20ASLL3F

New Product

Toshiba

ESD Protection Diodes / TVS Diodes SOD-962 VRMW 15V 1uA TVS Diodes

Datasheet

9,260In Stock

Cut Tape

$0.258

$0.174

$0.086

$0.071

Reel

$0.033

View

Min.: 1
Mult.: 1

: 10,000

ESD Protection Diodes / TVS Diodes 300W,530V MIN,UNIDIR,SMA TVS

SMAJ530HM3_B/H
Vishay Semiconductors
1: $1.24
743In Stock
New Product

Mfr. Part No.
SMAJ530HM3_B/H

Mouser Part No
78-SMAJ530HM3_B/H

New Product

Vishay Semiconductors

ESD Protection Diodes / TVS Diodes 300W,530V MIN,UNIDIR,SMA TVS

Datasheet

743In Stock

Cut Tape

$1.24

$0.766

$0.496

$0.381

Reel

$0.294

View

Min.: 1
Mult.: 1

: 1,800

ESD Protection Diodes / TVS Diodes ESD PROTECTION DIODE SOT23

VGSOT15-G3-08
Vishay Semiconductors
1: $0.639
13,990In Stock
30,000Expected 6/8/2026
New Product

Mfr. Part No.
VGSOT15-G3-08

Mouser Part No
78-VGSOT15-G3-08

New Product

Vishay Semiconductors

ESD Protection Diodes / TVS Diodes ESD PROTECTION DIODE SOT23

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Datasheet

13,990In Stock

30,000Expected 6/8/2026

Cut Tape

$0.639

$0.423

$0.227

$0.184

Reel

$0.151

View

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

ESD Protection Diodes / TVS Diodes ESD PROTECTION DIODE SOD323

VLIN3333-02GHE3A08
Vishay
1: $0.653
8,798In Stock
New Product

Mfr. Part No.
VLIN3333-02GHE3A08

Mouser Part No
78-VLIN3333-02HE3A08

New Product

Vishay

ESD Protection Diodes / TVS Diodes ESD PROTECTION DIODE SOD323

Datasheet

8,798In Stock

Cut Tape

$0.653

$0.45

$0.228

$0.186

Reel

$0.116

View

Min.: 1
Mult.: 1

: 3,000

ESD Protection Diodes / TVS Diodes Transient Voltage Suppressor, Common Anode, SC-59

SZMMQA18VT1G
onsemi
1: $0.694
2,918In Stock
New Product

Mfr. Part No.
SZMMQA18VT1G

Mouser Part No
863-SZMMQA18VT1G

New Product

onsemi

ESD Protection Diodes / TVS Diodes Transient Voltage Suppressor, Common Anode, SC-59

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Datasheet

2,918In Stock

Cut Tape

$0.694

$0.419

$0.265

Reel

$0.265

Min.: 1
Mult.: 1
Max.: 300

: 3,000

ESD Protection Diodes / TVS Diodes TVS Hi Power Diode 30KPA Axial

30KPA216CA
Littelfuse
1: $38.98
1,619In Stock

Mfr. Part No.
30KPA216CA

Mouser Part No
576-30KPA216CA

Littelfuse

ESD Protection Diodes / TVS Diodes TVS Hi Power Diode 30KPA Axial

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Datasheet

1,619In Stock

Cut Tape

$38.98

$30.31

$29.12

$23.80

Reel

$23.79

Min.: 1
Mult.: 1

: 800

Fuse Holder Accessories FBDIN1

FBDIN1
Littelfuse
1: $10.65
7,827In Stock
15Expected 19/8/2026

Mfr. Part No.
FBDIN1

Mouser Part No
576-FBDIN1

Littelfuse

Fuse Holder Accessories FBDIN1

Datasheet

7,827In Stock

15Expected 19/8/2026

$10.65

$9.36

$6.64

$4.76

View

Min.: 1
Mult.: 1

Circuit Breakers CBMC E4 24DC/1-4A+ IOL

2910410
Phoenix Contact
1: $294.44
85In Stock

Mfr. Part No.
2910410

Mouser Part No
651-2910410

Phoenix Contact

Circuit Breakers CBMC E4 24DC/1-4A+ IOL

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Datasheet

85In Stock

$294.44

Min.: 1
Mult.: 1

NTC (Negative Temperature Coefficient) Thermistors 10k 3988 3%

B57861S0103F045
TDK
1: $3.60
7,569In Stock

Mfr. Part No.
B57861S0103F045

Mouser Part No
871-B57861S103F45

TDK

NTC (Negative Temperature Coefficient) Thermistors 10k 3988 3%

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Datasheet

7,569In Stock

$3.60

$3.45

$3.26

$3.13

View

Min.: 1
Mult.: 1

ESD Protection Diodes / TVS Diodes TVS Hi Power Diode 30KPA Axial

30KPA120CA
Littelfuse
1: $30.52
1,367In Stock

Mfr. Part No.
30KPA120CA

Mouser Part No
576-30KPA120CA

Littelfuse

ESD Protection Diodes / TVS Diodes TVS Hi Power Diode 30KPA Axial

Learn More

Datasheet

1,367In Stock

Cut Tape

$30.52

$24.33

$22.41

$18.32

Reel

$18.31

Min.: 1
Mult.: 1

: 800

ESD Protection Diodes / TVS Diodes TVS Hi Power Diode 30KPA Axial

30KPA48CA
Littelfuse
1: $30.52
2,823In Stock

Mfr. Part No.
30KPA48CA

Mouser Part No
576-30KPA48CA

Littelfuse

ESD Protection Diodes / TVS Diodes TVS Hi Power Diode 30KPA Axial

Learn More

Datasheet

2,823In Stock

Cut Tape

$30.52

$24.33

$22.40

$18.32

Reel

$18.31

Min.: 1
Mult.: 1

: 800

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

1110984
Phoenix Contact
1: $116.51
163In 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

163In Stock

$116.51

Min.: 1
Mult.: 1

ESD Protection Diodes / TVS Diodes 3.3V, High Surge TVS for VBus Protection

UCLAMP3381P.TFT
Semtech
1: $1.94
62,089In Stock

Mfr. Part No.
UCLAMP3381P.TFT

Mouser Part No
947-UCLAMP3381P.TFT

Semtech

ESD Protection Diodes / TVS Diodes 3.3V, High Surge TVS for VBus Protection

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Datasheet

62,089In Stock

Cut Tape

$1.94

$0.951

$0.677

$0.604

View

Reel

$0.442

MouseReel Available

Min.: 1
Mult.: 1

: 15,000

PTC (Positive Temperature Coefficient) Thermistors 35ohms 10A 410V 30%

PTC305C20
Vishay / Cera-Mite
1: $21.76
552In Stock

Mfr. Part No.
PTC305C20

Mouser Part No
75-PTC305C20

Vishay / Cera-Mite

PTC (Positive Temperature Coefficient) Thermistors 35ohms 10A 410V 30%

Datasheet

552In Stock

$21.76

$19.23

$17.23

$16.32

View

Min.: 1
Mult.: 1

Varistors 50VAC 65VDC 1500pF AEC-Q200

V65MLA1812NRAUTO
Littelfuse
1: $4.15
2,543In Stock

Mfr. Part No.
V65MLA1812NRAUTO

Mouser Part No
576-V65MLA1812NRAUTO

Littelfuse

Varistors 50VAC 65VDC 1500pF AEC-Q200

Learn More

Datasheet

2,543In Stock

Cut Tape

$4.15

$2.99

$2.82

$2.41

Reel

$1.66

View

MouseReel Available

Min.: 1
Mult.: 1

: 1,000

Industrial & Electrical Fuses 4A 600VAC 600VDC Midget

KLKD004.T
Littelfuse
1: $30.33
1,235In Stock

Mfr. Part No.
KLKD004.T

Mouser Part No
576-KLKD004.T

Littelfuse

Industrial & Electrical Fuses 4A 600VAC 600VDC Midget

Learn More

Datasheet

1,235In Stock

$30.33

$27.12

$23.94

$21.80

View

Min.: 1
Mult.: 1

ESD Protection Diodes / TVS Diodes Low-Cap 3Ch ESD Prot ection Array

TPD3E001DRYR
Texas Instruments
1: $1.43
83,820In Stock

Mfr. Part No.
TPD3E001DRYR

Mouser Part No
595-TPD3E001DRYR

Texas Instruments

ESD Protection Diodes / TVS Diodes Low-Cap 3Ch ESD Prot ection Array

Datasheet

83,820In Stock

Cut Tape

$1.43

$0.845

$0.607

$0.481

Reel

$0.33

View

MouseReel Available

Min.: 1
Mult.: 1

: 5,000

Circuit Protection

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