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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: 359,631

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Part #

Industrial Surge Protectors VAL-SEC-T2-3C-350-FM

2905339
Phoenix Contact
1: $579.66
4In Stock

Mfr. Part #
2905339

Mouser Part #
651-2905339

Phoenix Contact

Industrial Surge Protectors VAL-SEC-T2-3C-350-FM

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Datasheet

4In Stock

$579.66

Min.: 1
Mult.: 1

Gas Discharge Tubes - GDTs / Gas Plasma Arrestors Miniature 3-Pole Gas Discharge Tube

2036-09-B2FLF
Bourns
1: $3.41
1,134In Stock

Mfr. Part #
2036-09-B2FLF

Mouser Part #
652-2036-09-B2FLF

Bourns

Gas Discharge Tubes - GDTs / Gas Plasma Arrestors Miniature 3-Pole Gas Discharge Tube

Datasheet

1,134In Stock

$3.41

$3.15

$2.61

$2.39

View

Min.: 1
Mult.: 1

Resettable Fuses - PPTC 2920 Resettable SMD PPTC 2.6A/16V

MF-LSMF260/16X-2
Bourns
1: $1.00
7,826In Stock

Mfr. Part #
MF-LSMF260/16X-2

Mouser Part #
652-MF-LSMF260/16X-2

Bourns

Resettable Fuses - PPTC 2920 Resettable SMD PPTC 2.6A/16V

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Datasheet

7,826In Stock

Cut Tape

$1.00

$0.803

$0.722

$0.545

View

Reel

$0.411

MouseReel Available

Min.: 1
Mult.: 1

: 4,000

Resettable Fuses - PPTC 42V 200MA-HD 40A MAX

MF-MSHT020KX-2
Bourns
1: $0.975
8,996In Stock

Mfr. Part #
MF-MSHT020KX-2

Mouser Part #
652-MF-MSHT020KX-2

Bourns

Resettable Fuses - PPTC 42V 200MA-HD 40A MAX

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Datasheet

8,996In Stock

Cut Tape

$0.975

$0.818

$0.719

$0.679

Reel

$0.545

View

MouseReel Available

Min.: 1
Mult.: 1

: 2,000

Resettable Fuses - PPTC PTC RESETTABLE 2.5A 30V RADIAL LEADED

MF-R250-AP-10
Bourns
1: $0.65
11,510In Stock

Mfr. Part #
MF-R250-AP-10

Mouser Part #
652-MF-R250-AP-10

Bourns

Resettable Fuses - PPTC PTC RESETTABLE 2.5A 30V RADIAL LEADED

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Datasheet

11,510In Stock

$0.65

$0.599

$0.497

$0.454

Reel

$0.29

View

Min.: 1
Mult.: 1

: 3,000

Resettable Fuses - PPTC 240V .55A-HD 7A MAX

MF-RM055/240-0
Bourns
1: $1.42
3,169In Stock

Mfr. Part #
MF-RM055/240-0

Mouser Part #
652-MF-RM055/240-0

Bourns

Resettable Fuses - PPTC 240V .55A-HD 7A MAX

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Datasheet

3,169In Stock

$1.42

$1.31

$1.04

$0.997

View

Min.: 1
Mult.: 1

Resettable Fuses - PPTC PTC RESETTABLE 1.35A 72V RADIAL LEADED

MF-RX135/72-2-14
Bourns
1: $0.923
9,341In Stock

Mfr. Part #
MF-RX135/72-2-14

Mouser Part #
652-MF-RX135/72-2-14

Bourns

Resettable Fuses - PPTC PTC RESETTABLE 1.35A 72V RADIAL LEADED

Datasheet

9,341In Stock

Cut Tape

$0.923

$0.849

$0.705

$0.65

Reel

$0.338

View

Min.: 1
Mult.: 1

: 3,000

Resettable Fuses - PPTC 1210 SMD High-Temp Polymer PTC, 16V/0.75

MF-USHT075KX-2
Bourns
1: $0.897
10,111In Stock

Mfr. Part #
MF-USHT075KX-2

Mouser Part #
652-MF-USHT075KX-2

Bourns

Resettable Fuses - PPTC 1210 SMD High-Temp Polymer PTC, 16V/0.75

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Datasheet

10,111In Stock

Cut Tape

$0.897

$0.683

$0.641

$0.484

Reel

$0.351

View

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

Thermal Cutoffs Trip Temp 72c 5c TOL

NR72AB0
Bourns
1: $2.16
3,041In Stock

Mfr. Part #
NR72AB0

Mouser Part #
652-NR72AB0

Bourns

Thermal Cutoffs Trip Temp 72c 5c TOL

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Datasheet

3,041In Stock

$2.16

$1.96

$1.70

$1.50

View

Min.: 1
Mult.: 1

Thermal Cutoffs HC TCO 85C BL-51

SA85SB0
Bourns
1: $1.40
8,998In Stock

Mfr. Part #
SA85SB0

Mouser Part #
652-SA85SB0

Bourns

Thermal Cutoffs HC TCO 85C BL-51

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Datasheet

8,998In Stock

Cut Tape

$1.40

$1.29

$1.08

$0.944

View

Reel

$0.605

MouseReel Available

Min.: 1
Mult.: 1

: 5,000

Thermal Cutoffs 72C Low Profile SMD HC TCO

SC72AAB
Bourns
1: $1.44
4,913In Stock

Mfr. Part #
SC72AAB

Mouser Part #
652-SC72AAB

Bourns

Thermal Cutoffs 72C Low Profile SMD HC TCO

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Datasheet

4,913In Stock

Cut Tape

$1.44

$1.34

$1.30

$1.10

View

Reel

$0.621

MouseReel Available

Min.: 1
Mult.: 1

: 5,000

Surface Mount Fuses 2A Fast Acting 0603 SinglFuse

SF-0603F200-2
Bourns
1: $0.702
19,061In Stock

Mfr. Part #
SF-0603F200-2

Mouser Part #
652-SF-0603F200-2

Bourns

Surface Mount Fuses 2A Fast Acting 0603 SinglFuse

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Datasheet

19,061In Stock

Cut Tape

$0.702

$0.606

$0.524

$0.481

View

Reel

$0.308

MouseReel Available

Min.: 1
Mult.: 1

: 5,000

Surface Mount Fuses .8A 32V TIME DELAY

SF-0603SP080-2
Bourns
1: $0.988
21,375In Stock

Mfr. Part #
SF-0603SP080-2

Mouser Part #
652-SF-0603SP080-2

Bourns

Surface Mount Fuses .8A 32V TIME DELAY

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Datasheet

21,375In Stock

Cut Tape

$0.988

$0.785

$0.662

$0.581

View

Reel

$0.367

MouseReel Available

Min.: 1
Mult.: 1

: 5,000

Surface Mount Fuses 0603 time-lag met-foil. 6A Auto

SF-0603SPA600R-2
Bourns
1: $1.38
9,045In Stock

Mfr. Part #
SF-0603SPA600R-2

Mouser Part #
652-SF-0603SPA600R-2

Bourns

Surface Mount Fuses 0603 time-lag met-foil. 6A Auto

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Datasheet

9,045In Stock

Cut Tape

$1.38

$0.90

$0.787

$0.736

View

Reel

$0.618

MouseReel Available

Min.: 1
Mult.: 1

: 5,000

Surface Mount Fuses 0603 time-lag met-foil. 8A Auto

SF-0603SPA800R-2
Bourns
1: $1.08
8,282In Stock

Mfr. Part #
SF-0603SPA800R-2

Mouser Part #
652-SF-0603SPA800R-2

Bourns

Surface Mount Fuses 0603 time-lag met-foil. 8A Auto

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Datasheet

8,282In Stock

Cut Tape

$1.08

$0.992

$0.878

$0.82

View

Reel

$0.594

MouseReel Available

Min.: 1
Mult.: 1

: 5,000

Surface Mount Fuses 1A 63V FAST ACTING

SF-1206FP100-2
Bourns
1: $0.884
13,981In Stock

Mfr. Part #
SF-1206FP100-2

Mouser Part #
652-SF-1206FP100-2

Bourns

Surface Mount Fuses 1A 63V FAST ACTING

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Datasheet

13,981In 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 1A 63V TIME DELAY

SF-1206SP100-2
Bourns
1: $0.819
15,520In Stock

Mfr. Part #
SF-1206SP100-2

Mouser Part #
652-SF-1206SP100-2

Bourns

Surface Mount Fuses 1A 63V TIME DELAY

Learn More

Datasheet

15,520In Stock

Cut Tape

$0.819

$0.745

$0.627

$0.551

View

Reel

$0.347

MouseReel Available

Min.: 1
Mult.: 1

: 5,000

Thyristor Surge Protection Devices - TSPD 15V (DRM) 500A (IPP) 30V (B

TISP4030H1BJR-S
Bourns
1: $1.82
21,243In Stock

Mfr. Part #
TISP4030H1BJR-S

Mouser Part #
652-TISP4030H1BJR-S

Bourns

Thyristor Surge Protection Devices - TSPD 15V (DRM) 500A (IPP) 30V (B

Learn More

Datasheet

21,243In Stock

Cut Tape

$1.82

$1.15

$0.646

$0.532

$0.459

Reel

$0.447

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

Thyristor Surge Protection Devices - TSPD 190V(DRM) 600A (IPP) 250V(B

TISP4250H3BJR-S
Bourns
1: $1.78
25,657In Stock

Mfr. Part #
TISP4250H3BJR-S

Mouser Part #
652-TISP4250H3BJR-S

Bourns

Thyristor Surge Protection Devices - TSPD 190V(DRM) 600A (IPP) 250V(B

Learn More

Datasheet

25,657In Stock

Cut Tape

$1.78

$0.927

$0.662

$0.55

Reel

$0.442

View

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

ESD Protection Diodes / TVS Diodes WE-TVS Standard 2.5uA 5VDC 5Channel

82402375
Wurth Elektronik
1: $0.793
5,446In Stock

Mfr. Part #
82402375

Mouser Part #
710-82402375

Wurth Elektronik

ESD Protection Diodes / TVS Diodes WE-TVS Standard 2.5uA 5VDC 5Channel

Learn More

Datasheet

5,446In Stock

Cut Tape

$0.793

$0.75

$0.703

$0.658

View

Reel

$0.441

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

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

SMC5K54A-M3/I
Vishay Semiconductors
1: $1.40
3,543In Stock

Mfr. Part #
SMC5K54A-M3/I

Mouser Part #
78-SMC5K54A-M3/I

Vishay Semiconductors

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

Learn More

Datasheet

3,543In Stock

Cut Tape

$1.40

$0.997

$0.714

$0.711

Reel

$0.71

View

MouseReel Available

Min.: 1
Mult.: 1

: 3,500

ESD Protection Diodes / TVS Diodes 1000watt 10volt

SMF10A-E3-08
Vishay Semiconductors
1: $0.741
31,851In Stock

Mfr. Part #
SMF10A-E3-08

Mouser Part #
78-SMF10A-E3-08

Vishay Semiconductors

ESD Protection Diodes / TVS Diodes 1000watt 10volt

Learn More

Datasheet

31,851In Stock

Cut Tape

$0.741

$0.354

$0.29

$0.234

Reel

$0.129

View

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

ESD Protection Diodes / TVS Diodes 5.0 Volt 33 Watt 5 Diode

VESD05A5A-HSF-GS08
Vishay Semiconductors
1: $0.962
14,020In Stock

Mfr. Part #
VESD05A5A-HSF-GS08

Mouser Part #
78-VESD05A5A-HSF

Vishay Semiconductors

ESD Protection Diodes / TVS Diodes 5.0 Volt 33 Watt 5 Diode

Datasheet

14,020In Stock

Cut Tape

$0.962

$0.488

$0.382

$0.293

Reel

$0.225

View

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

SCRs 8A It; 800V Vdrm SCR TO-263AB (D2PAK)

VS-12TTS08SLHM3
Vishay Semiconductors
1: $4.86
1,600In Stock

Mfr. Part #
VS-12TTS08SLHM3

Mouser Part #
78-VS-12TTS08SLHM3

Vishay Semiconductors

SCRs 8A It; 800V Vdrm SCR TO-263AB (D2PAK)

Learn More

Datasheet

1,600In Stock

Cut Tape

$4.86

$3.19

$2.22

$1.76

Reel

$1.73

MouseReel Available

Min.: 1
Mult.: 1

: 800

PTC Thermistors 470 OHM 50% SMD 0603

PRF18BE471QB5RB
Murata Electronics
1: $0.221
21,250In Stock

Mfr. Part #
PRF18BE471QB5RB

Mouser Part #
81-PRF18BE471QB5RB

Murata Electronics

PTC Thermistors 470 OHM 50% SMD 0603

Learn More

Datasheet

21,250In Stock

Cut Tape

$0.221

$0.20

$0.176

$0.166

Reel

$0.109

View

MouseReel Available

Min.: 1
Mult.: 1

: 4,000

Circuit Protection

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