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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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Types of Circuit Protection

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Results: 361,668

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Download Table (.CSV)

Part #

Resettable Fuses - PPTC 2920 Resettable SMD PPTC 1.85/15V

MF-LSMF185X-2
Bourns
1: $0.71
8,923In Stock

Mfr. Part No.
MF-LSMF185X-2

Mouser Part No
652-MF-LSMF185X-2

Bourns

Resettable Fuses - PPTC 2920 Resettable SMD PPTC 1.85/15V

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Datasheet

8,923In Stock

Cut Tape

$0.71

$0.583

$0.532

$0.442

View

Reel

$0.307

MouseReel Available

Min.: 1
Mult.: 1

: 6,000

Resettable Fuses - PPTC 30V 200MA-HD 20A MAX

MF-NSHT020KX-2
Bourns
1: $0.54
9,935In Stock

Mfr. Part No.
MF-NSHT020KX-2

Mouser Part No
652-MF-NSHT020KX-2

Bourns

Resettable Fuses - PPTC 30V 200MA-HD 20A MAX

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Datasheet

9,935In Stock

Cut Tape

$0.54

$0.411

$0.385

$0.291

Reel

$0.211

View

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

Resettable Fuses - PPTC 16V 100MA-HD 40A MAX

MF-PSHT010KX-2
Bourns
1: $0.38
13,138In Stock

Mfr. Part No.
MF-PSHT010KX-2

Mouser Part No
652-MF-PSHT010KX-2

Bourns

Resettable Fuses - PPTC 16V 100MA-HD 40A MAX

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Datasheet

13,138In Stock

Cut Tape

$0.38

$0.345

$0.286

$0.264

View

Reel

$0.20

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

Varistors ZV 50V 10%

ZV50K2220801NIR1HT
Bourns
1: $1.12
5,979In Stock

Mfr. Part No.
ZV50K2220801NIR1HT

Mouser Part No
652-ZV50K2220801NIRH

Bourns

Varistors ZV 50V 10%

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Datasheet

5,979In Stock

Cut Tape

$1.12

$0.728

$0.643

$0.603

Reel

$0.486

View

MouseReel Available

Min.: 1
Mult.: 1

: 1,000

Industrial Surge Protectors Din Rail AC Power Surge Suppressor, 40kA max, 480V Delta,3P

DS43S-480
Citel
1: $275.87
14In Stock

Mfr. Part No.
DS43S-480

Mouser Part No
703-DS43S-480

Citel

Industrial Surge Protectors Din Rail AC Power Surge Suppressor, 40kA max, 480V Delta,3P

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Datasheet

14In Stock

$275.87

$267.50

$238.80

$238.77

View

Min.: 1
Mult.: 1

ESD Protection Diodes / TVS Diodes TVS ARRAY4 ELMNTS

RSA6.1J4T2R
ROHM Semiconductor
1: $0.40
13,769In Stock

Mfr. Part No.
RSA6.1J4T2R

Mouser Part No
755-RSA6.1J4T2R

ROHM Semiconductor

ESD Protection Diodes / TVS Diodes TVS ARRAY4 ELMNTS

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Datasheet

13,769In Stock

Cut Tape

$0.40

$0.272

$0.168

$0.133

View

Reel

$0.105

MouseReel Available

Min.: 1
Mult.: 1

: 8,000

ESD Protection Diodes / TVS Diodes RASMID™ Series - Transient Voltage Suppressor

VS4V5BU1QST18R
ROHM Semiconductor
1: $0.27
36,415In Stock

Mfr. Part No.
VS4V5BU1QST18R

Mouser Part No
755-VS4V5BU1QST18R

ROHM Semiconductor

ESD Protection Diodes / TVS Diodes RASMID™ Series - Transient Voltage Suppressor

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Datasheet

36,415In Stock

Cut Tape

$0.27

$0.182

$0.07

$0.069

View

Reel

$0.059

MouseReel Available

Min.: 1
Mult.: 1

: 18,000

Triacs 600V 1A

BT134W-600,135
WeEn Semiconductors
1: $0.84
24,060In Stock

Mfr. Part No.
BT134W-600,135

Mouser Part No
771-BT134W-600-/T3

WeEn Semiconductors

Triacs 600V 1A

Datasheet

24,060In Stock

Cut Tape

$0.84

$0.519

$0.337

$0.316

Reel

$0.28

$0.18

MouseReel Available

Min.: 1
Mult.: 1

: 4,000

Triacs RAIL 3Q TRIAC

BTA208X-800B,127
WeEn Semiconductors
1: $1.41
9,408In Stock

Mfr. Part No.
BTA208X-800B,127

Mouser Part No
771-BTA208X-800B127

WeEn Semiconductors

Triacs RAIL 3Q TRIAC

Datasheet

9,408In Stock

$1.41

$0.661

$0.588

$0.46

View

Min.: 1
Mult.: 1

Triacs RAIL-THYR AND TRIACS

BTA316-800B,127
WeEn Semiconductors
1: $1.50
8,168In Stock

Mfr. Part No.
BTA316-800B,127

Mouser Part No
771-BTA316-800B127

WeEn Semiconductors

Triacs RAIL-THYR AND TRIACS

Datasheet

8,168In Stock

$1.50

$0.944

$0.626

$0.495

View

Min.: 1
Mult.: 1

Triacs RAIL-THYR AND TRIACS

BTA412Y-600B,127
WeEn Semiconductors
1: $1.76
4,550In Stock

Mfr. Part No.
BTA412Y-600B,127

Mouser Part No
771-BTA412Y-600B127

WeEn Semiconductors

Triacs RAIL-THYR AND TRIACS

Datasheet

4,550In Stock

$1.76

$0.839

$0.749

$0.592

View

Min.: 1
Mult.: 1

ESD Protection Diodes / TVS Diodes 3KW, 43V 5%,BIDIR,SMC TVS

SMC3K43CAHM3_A/H
Vishay Semiconductors
1: $2.46
2,195In Stock

Mfr. Part No.
SMC3K43CAHM3_A/H

Mouser Part No
78-SMC3K43CAHM3_A/H

Vishay Semiconductors

ESD Protection Diodes / TVS Diodes 3KW, 43V 5%,BIDIR,SMC TVS

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Datasheet

2,195In Stock

Cut Tape

$2.46

$1.57

$1.07

$0.912

Reel

$0.79

View

MouseReel Available

Min.: 1
Mult.: 1

: 850

ESD Protection Diodes / TVS Diodes 5000W Pppm Uni TVS SMC (DO-214AB)

SMC5K36A-M3/I
Vishay Semiconductors
1: $1.01
5,111In Stock

Mfr. Part No.
SMC5K36A-M3/I

Mouser Part No
78-SMC5K36A-M3/I

Vishay Semiconductors

ESD Protection Diodes / TVS Diodes 5000W Pppm Uni TVS SMC (DO-214AB)

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Datasheet

5,111In Stock

Cut Tape

$1.01

$0.791

$0.605

$0.543

Reel

$0.543

MouseReel Available

Min.: 1
Mult.: 1

: 3,500

ESD Protection Diodes / TVS Diodes 5000W Pppm Uni TVS SMC (DO-214AB)

SMC5K85A-M3/H
Vishay Semiconductors
1: $0.67
2,492In Stock

Mfr. Part No.
SMC5K85A-M3/H

Mouser Part No
78-SMC5K85A-M3/H

Vishay Semiconductors

ESD Protection Diodes / TVS Diodes 5000W Pppm Uni TVS SMC (DO-214AB)

Learn More

Datasheet

2,492In Stock

Cut Tape

$0.67

$0.584

$0.547

Reel

$0.546

MouseReel Available

Min.: 1
Mult.: 1

: 850

NTC (Negative Temperature Coefficient) Thermistors Glass encapsultd. DO-35 Type

135-503LAG-J01
Honeywell
1: $10.65
746In Stock

Mfr. Part No.
135-503LAG-J01

Mouser Part No
785-135-503LAG-J01

Honeywell

NTC (Negative Temperature Coefficient) Thermistors Glass encapsultd. DO-35 Type

Datasheet

746In Stock

$10.65

$9.61

$9.23

$8.77

View

Min.: 1
Mult.: 1

SCR Modules 1200 Volt 230 Amp

VS-VSKD236/12PBF
Vishay Semiconductors
1: $82.54
33In Stock
30On Order

Mfr. Part No.
VS-VSKD236/12PBF

Mouser Part No
844-VSKD236/12PBF

Vishay Semiconductors

SCR Modules 1200 Volt 230 Amp

Datasheet

33In Stock

30On Order

$82.54

$68.21

$61.43

Min.: 1
Mult.: 1

Triacs 8A 35mA 800V IGT 3 QUAD INTERNL ISLTD

BTA08-800CW3G
Littelfuse
1: $2.36
1,072In Stock

Mfr. Part No.
BTA08-800CW3G

Mouser Part No
863-BTA08-800CW3G

Littelfuse

Triacs 8A 35mA 800V IGT 3 QUAD INTERNL ISLTD

Datasheet

1,072In Stock

$2.36

$1.41

Min.: 1
Mult.: 1

Triacs THY SPECIAL TRIAC

T2800DG
Littelfuse
1: $2.55
3,525In Stock

Mfr. Part No.
T2800DG

Mouser Part No
863-T2800DG

Littelfuse

Triacs THY SPECIAL TRIAC

Datasheet

3,525In Stock

Cut Tape

$2.55

$1.50

$1.13

$0.966

Reel

$0.966

Min.: 1
Mult.: 1

: 1,000

Inrush Current Limiters 2.2 Ohms 7amps 2800k

B57237S0229M054
TDK
1: $1.53
2,686In Stock

Mfr. Part No.
B57237S0229M054

Mouser Part No
871-B57237S229M54

TDK

Inrush Current Limiters 2.2 Ohms 7amps 2800k

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Datasheet

2,686In Stock

$1.53

$1.41

$1.17

$1.08

Reel

$0.777

View

Min.: 1
Mult.: 1

: 750

NTC (Negative Temperature Coefficient) Thermistors NTC Thermistor 0402 47K F60 B-4108 NICA

B57250V2473F560
TDK
1: $0.12
34,956In Stock

Mfr. Part No.
B57250V2473F560

Mouser Part No
871-B57250V2473F560

TDK

NTC (Negative Temperature Coefficient) Thermistors NTC Thermistor 0402 47K F60 B-4108 NICA

Learn More

Datasheet

34,956In Stock

Cut Tape

$0.12

$0.102

$0.097

$0.081

Reel

$0.047

View

Min.: 1
Mult.: 1

: 10,000

Inrush Current Limiters S 364/1 M51

B57364S0109M051
TDK
1: $2.33
2,248In Stock
2,000On Order

Mfr. Part No.
B57364S0109M051

Mouser Part No
871-B57364S0109M051

TDK

Inrush Current Limiters S 364/1 M51

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Datasheet

2,248In Stock

2,000On Order

Cut Tape

$2.33

$2.07

$1.98

$1.87

View

Reel

$1.36

Min.: 1
Mult.: 1

: 1,000

NTC (Negative Temperature Coefficient) Thermistors 5k 3988 1%

B57867S0502F140
TDK
1: $2.09
1,608In Stock

Mfr. Part No.
B57867S0502F140

Mouser Part No
871-B57867S502F140

TDK

NTC (Negative Temperature Coefficient) Thermistors 5k 3988 1%

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Datasheet

1,608In Stock

$2.09

$1.99

$1.88

$1.80

View

Min.: 1
Mult.: 1

PTC (Positive Temperature Coefficient) Thermistors 160C 12Vdc 3ohms Disc PTC Heating

B59060A0160A010
TDK
1: $2.31
1,720In Stock

Mfr. Part No.
B59060A0160A010

Mouser Part No
871-B59060A0160A010

TDK

PTC (Positive Temperature Coefficient) Thermistors 160C 12Vdc 3ohms Disc PTC Heating

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Datasheet

1,720In Stock

$2.31

$1.89

$1.53

$1.43

View

Min.: 1
Mult.: 1

Gas Discharge Tubes - GDTs / Gas Plasma Arrestors M50-C90X

B88069X1590C253
TDK
1: $2.08
2,130In Stock

Mfr. Part No.
B88069X1590C253

Mouser Part No
871-B88069X1590C253

TDK

Gas Discharge Tubes - GDTs / Gas Plasma Arrestors M50-C90X

Datasheet

2,130In Stock

$2.08

$1.91

$1.57

$1.38

View

Min.: 1
Mult.: 1

Circuit Breakers Cir Brkr Hyd Mag

219-3-8303-11
AIRPAX
1: $335.45
7In Stock

Mfr. Part No.
219-3-8303-11

Mouser Part No
874-2193830311

AIRPAX

Circuit Breakers Cir Brkr Hyd Mag

Learn More

Datasheet

7In Stock

$335.45

$293.00

$203.57

$178.88

View

Min.: 1
Mult.: 1

Circuit Protection

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