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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: 359,338

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Part #

Resettable Fuses - PPTC PTC 2.0A 16V RADIAL LEADED HI-TEMP

MF-RHT200-2
Bourns
1: $0.975
11,279In Stock

Mfr. Part #
MF-RHT200-2

Mouser Part #
652-MF-RHT200-2

Bourns

Resettable Fuses - PPTC PTC 2.0A 16V RADIAL LEADED HI-TEMP

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Datasheet

11,279In Stock

Cut Tape

$0.975

$0.748

$0.701

$0.529

Reel

$0.371

View

Min.: 1
Mult.: 1

: 3,000

Resettable Fuses - PPTC 240V .25A-HD 3.5A MAX

MF-RM025/240-2
Bourns
1: $0.962
13,702In Stock

Mfr. Part #
MF-RM025/240-2

Mouser Part #
652-MF-RM025/240-2

Bourns

Resettable Fuses - PPTC 240V .25A-HD 3.5A MAX

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Datasheet

13,702In Stock

Cut Tape

$0.962

$0.826

$0.733

$0.629

View

Reel

$0.426

Min.: 1
Mult.: 1

: 4,000

Resettable Fuses - PPTC PTC 0.12A 250V RADIAL LEADED TELECOM

MF-RX012/250-2
Bourns
1: $0.637
14,614In Stock

Mfr. Part #
MF-RX012/250-2

Mouser Part #
652-MF-RX012/250-2

Bourns

Resettable Fuses - PPTC PTC 0.12A 250V RADIAL LEADED TELECOM

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Datasheet

14,614In Stock

Cut Tape

$0.637

$0.576

$0.524

$0.485

View

Reel

$0.283

Min.: 1
Mult.: 1

: 6,000

Resettable Fuses - PPTC 72V 1.6A-HD 40A MAX

MF-RX160/72-0
Bourns
1: $0.429
11,291In Stock

Mfr. Part #
MF-RX160/72-0

Mouser Part #
652-MF-RX160/72-0

Bourns

Resettable Fuses - PPTC 72V 1.6A-HD 40A MAX

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Datasheet

11,291In Stock

$0.429

$0.391

$0.363

$0.35

View

Min.: 1
Mult.: 1

Resettable Fuses - PPTC 60V 1.85A-HD 40A MAX

MF-RX185/72-0
Bourns
1: $0.403
12,663In Stock

Mfr. Part #
MF-RX185/72-0

Mouser Part #
652-MF-RX185/72-0

Bourns

Resettable Fuses - PPTC 60V 1.85A-HD 40A MAX

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Datasheet

12,663In Stock

$0.403

$0.369

$0.351

$0.29

Min.: 1
Mult.: 1

Resettable Fuses - PPTC PTC RESETTABLE 3.0A 72V RADIAL LEADED

MF-RX300/72-2
Bourns
1: $0.897
7,348In Stock

Mfr. Part #
MF-RX300/72-2

Mouser Part #
652-MF-RX300/72-2

Bourns

Resettable Fuses - PPTC PTC RESETTABLE 3.0A 72V RADIAL LEADED

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Datasheet

7,348In Stock

Cut Tape

$0.897

$0.832

$0.705

$0.65

Reel

$0.436

View

Min.: 1
Mult.: 1

: 3,000

Varistors PV 300V 10%

PV300K3225R2
Bourns
1: $0.949
8,634In Stock

Mfr. Part #
PV300K3225R2

Mouser Part #
652-PV300K3225R2

Bourns

Varistors PV 300V 10%

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Datasheet

8,634In Stock

Cut Tape

$0.949

$0.592

$0.525

$0.49

Reel

$0.45

View

Min.: 1
Mult.: 1

: 1,000

Thermal Cutoffs 77C Low Profile SMD HC TCO

SC77AAB
Bourns
1: $1.18
9,540In Stock

Mfr. Part #
SC77AAB

Mouser Part #
652-SC77AAB

Bourns

Thermal Cutoffs 77C Low Profile SMD HC TCO

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Datasheet

9,540In Stock

Cut Tape

$1.18

$1.12

$1.05

$0.997

View

Reel

$0.64

MouseReel Available

Min.: 1
Mult.: 1

: 5,000

Surface Mount Fuses 0.5A Fast Acting 0402 SinglFuse

SF-0402F050-2
Bourns
1: $0.741
14,841In Stock

Mfr. Part #
SF-0402F050-2

Mouser Part #
652-SF-0402F050-2

Bourns

Surface Mount Fuses 0.5A Fast Acting 0402 SinglFuse

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Datasheet

14,841In Stock

Cut Tape

$0.741

$0.673

$0.559

$0.516

View

Reel

$0.341

MouseReel Available

Min.: 1
Mult.: 1

: 10,000

Surface Mount Fuses 0.8A Slow Blow 0603 SinglFuse

SF-0603S080-2
Bourns
1: $0.884
16,345In Stock

Mfr. Part #
SF-0603S080-2

Mouser Part #
652-SF-0603S080-2

Bourns

Surface Mount Fuses 0.8A Slow Blow 0603 SinglFuse

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Datasheet

16,345In Stock

Cut Tape

$0.884

$0.703

$0.593

$0.52

View

Reel

$0.328

MouseReel Available

Min.: 1
Mult.: 1

: 5,000

Surface Mount Fuses 2.5A Slow Blow 0603 SinglFuse

SF-0603S250-2
Bourns
1: $0.923
15,480In Stock

Mfr. Part #
SF-0603S250-2

Mouser Part #
652-SF-0603S250-2

Bourns

Surface Mount Fuses 2.5A Slow Blow 0603 SinglFuse

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Datasheet

15,480In Stock

Cut Tape

$0.923

$0.725

$0.593

$0.52

View

Reel

$0.328

MouseReel Available

Min.: 1
Mult.: 1

: 5,000

Thyristor Surge Protection Devices - TSPD Sidacs Very Low Volt Bidirectional

TISP4025H1BJR-S
Bourns
1: $1.78
9,422In Stock

Mfr. Part #
TISP4025H1BJR-S

Mouser Part #
652-TISP4025H1BJR-S

Bourns

Thyristor Surge Protection Devices - TSPD Sidacs Very Low Volt Bidirectional

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Datasheet

9,422In Stock

Cut Tape

$1.78

$1.12

$0.74

$0.576

Reel

$0.456

View

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

Thyristor Surge Protection Devices - TSPD 58V 600mA

TISP4070M3BJR-S
Bourns
1: $1.60
11,885In Stock

Mfr. Part #
TISP4070M3BJR-S

Mouser Part #
652-TISP4070M3BJR-S

Bourns

Thyristor Surge Protection Devices - TSPD 58V 600mA

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Datasheet

11,885In Stock

Cut Tape

$1.60

$1.00

$0.659

$0.512

Reel

$0.403

View

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

Thyristor Surge Protection Devices - TSPD BI-DIRECTIONL PRTCTR 120volts

TISP4145M3BJR-S
Bourns
1: $1.60
8,401In Stock

Mfr. Part #
TISP4145M3BJR-S

Mouser Part #
652-TISP4145M3BJR-S

Bourns

Thyristor Surge Protection Devices - TSPD BI-DIRECTIONL PRTCTR 120volts

Learn More

Datasheet

8,401In Stock

Cut Tape

$1.60

$1.00

$0.659

$0.512

Reel

$0.403

View

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

Connectorized Surge Protectors Din Rail POE Surge Suppressor, Type B

MJ8-POE-B
Citel
1: $152.05
126In Stock

Mfr. Part #
MJ8-POE-B

Mouser Part #
703-MJ8-POE-B

Citel

Connectorized Surge Protectors Din Rail POE Surge Suppressor, Type B

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Datasheet

126In Stock

$152.05

$126.09

$116.29

$116.27

View

Min.: 1
Mult.: 1

ESD Protection Diodes / TVS Diodes 600W 5V 5% Uni Low Profile

SMA6F5.0A-M3/6A
Vishay Semiconductors
1: $0.598
20,163In Stock

Mfr. Part #
SMA6F5.0A-M3/6A

Mouser Part #
78-SMA6F5.0A-M3/6A

Vishay Semiconductors

ESD Protection Diodes / TVS Diodes 600W 5V 5% Uni Low Profile

Learn More

Datasheet

20,163In Stock

Cut Tape

$0.598

$0.321

$0.28

$0.215

Reel

$0.169

View

MouseReel Available

Min.: 1
Mult.: 1

: 3,500

NTC Thermistors

NCP03XH153J05RL
Murata Electronics
1: $0.156
51,917In Stock

Mfr. Part #
NCP03XH153J05RL

Mouser Part #
81-NCP03XH153J05RL

Murata Electronics

NTC Thermistors

Learn More

Datasheet

51,917In Stock

Cut Tape

$0.156

$0.13

$0.114

$0.095

View

Reel

$0.07

MouseReel Available

Min.: 1
Mult.: 1

: 15,000

NTC Thermistors 0603 2.2K OHM 5% NTC AEC-Q200 125C

NTCG164BH222JTDS
TDK
1: $1.73
4,056In Stock

Mfr. Part #
NTCG164BH222JTDS

Mouser Part #
810-NTCG164BH222JTDS

TDK

NTC Thermistors 0603 2.2K OHM 5% NTC AEC-Q200 125C

Learn More

Datasheet

4,056In Stock

Cut Tape

$1.73

$1.64

$1.55

$1.47

View

Reel

$1.09

MouseReel Available

Min.: 1
Mult.: 1

: 4,000

NTC Thermistors 0603 6.8Kohm 5% Thermistor

NTCG164BH682JT1
TDK
1: $1.30
3,952In Stock

Mfr. Part #
NTCG164BH682JT1

Mouser Part #
810-NTCG164BH682JT1

TDK

NTC Thermistors 0603 6.8Kohm 5% Thermistor

Learn More

Datasheet

3,952In Stock

Cut Tape

$1.30

$1.23

$1.15

$1.10

View

Reel

$0.855

MouseReel Available

Min.: 1
Mult.: 1

: 4,000

Connectorized Surge Protectors SURGE,NN,0-1000MHZ

LAIL350NN
TE Connectivity
1: $78.68
34In Stock

Mfr. Part #
LAIL350NN

Mouser Part #
814-LAIL350NN

TE Connectivity

Connectorized Surge Protectors SURGE,NN,0-1000MHZ

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Datasheet

34In Stock

$78.68

$72.55

Min.: 1
Mult.: 1

SCRs 800V 25A

2N6509TG
Littelfuse
1: $5.56
896In Stock

Mfr. Part #
2N6509TG

Mouser Part #
863-2N6509TG

Littelfuse

SCRs 800V 25A

Datasheet

896In Stock

Cut Tape

$5.56

$3.69

$2.63

$2.59

Reel

$2.59

Min.: 1
Mult.: 1

: 1,000

Triacs 16a 50mA 800V IGT 3 QUAD INTERNL ISLTD

BTA16-800BW3G
Littelfuse
1: $6.25
1,457In Stock

Mfr. Part #
BTA16-800BW3G

Mouser Part #
863-BTA16-800BW3G

Littelfuse

Triacs 16a 50mA 800V IGT 3 QUAD INTERNL ISLTD

Datasheet

1,457In Stock

$6.25

$3.28

$3.03

Min.: 1
Mult.: 1

Triacs ISO TO220 16A 10MA TRIAC

BTA16-800SW3G
Littelfuse
1: $6.62
910In Stock

Mfr. Part #
BTA16-800SW3G

Mouser Part #
863-BTA16-800SW3G

Littelfuse

Triacs ISO TO220 16A 10MA TRIAC

Datasheet

910In Stock

$6.62

$3.48

$3.26

Min.: 1
Mult.: 1

Triacs Sensitive Gate

MAC12MG
Littelfuse
1: $4.25
1,284In Stock

Mfr. Part #
MAC12MG

Mouser Part #
863-MAC12MG

Littelfuse

Triacs Sensitive Gate

Datasheet

1,284In Stock

Cut Tape

$4.25

$2.67

$1.79

Reel

$1.79

Min.: 1
Mult.: 1

: 1,000

Triacs Triacs

MAC15A6G
Littelfuse
1: $3.56
2,516In Stock

Mfr. Part #
MAC15A6G

Mouser Part #
863-MAC15A6G

Littelfuse

Triacs Triacs

Datasheet

2,516In Stock

Cut Tape

$3.56

$2.31

$1.61

$1.46

Reel

$1.42

Min.: 1
Mult.: 1

: 1,000

Circuit Protection

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