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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: 365,610

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Download Table (.CSV)

Part #

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

MF-R250U
Bourns
1: $0.858
7,545In Stock

Mfr. Part No.
MF-R250U

Mouser Part No
652-MF-R250U

Bourns

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

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Datasheet

7,545In Stock

$0.858

$0.751

$0.631

$0.532

View

Min.: 1
Mult.: 1

Resettable Fuses - PPTC 30V 3A-HD 40A MAX

MF-R300-2
Bourns
1: $0.744
9,170In Stock

Mfr. Part No.
MF-R300-2

Mouser Part No
652-MF-R300-2

Bourns

Resettable Fuses - PPTC 30V 3A-HD 40A MAX

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Datasheet

9,170In Stock

Cut Tape

$0.744

$0.679

$0.565

$0.516

Reel

$0.326

View

Min.: 1
Mult.: 1

: 3,000

Varistors PV 140V 10%

PV140K4032R2
Bourns
1: $2.07
4,783In Stock

Mfr. Part No.
PV140K4032R2

Mouser Part No
652-PV140K4032R2

Bourns

Varistors PV 140V 10%

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Datasheet

4,783In Stock

Cut Tape

$2.07

$1.27

$0.841

$0.787

Reel

$0.506

View

MouseReel Available

Min.: 1
Mult.: 1

: 1,000

Thermal Cut-offs HC TCO 77C BL-51

SA77SB0
Bourns
1: $1.47
26,228In Stock

Mfr. Part No.
SA77SB0

Mouser Part No
652-SA77SB0

Bourns

Thermal Cut-offs HC TCO 77C BL-51

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Datasheet

26,228In Stock

Cut Tape

$1.47

$1.36

$1.13

$1.04

View

Reel

$0.655

MouseReel Available

Min.: 1
Mult.: 1

: 5,000

Thermal Cut-offs 72C Reinforced Cover SMD HC TCO

SC72AAA
Bourns
1: $1.86
4,783In Stock

Mfr. Part No.
SC72AAA

Mouser Part No
652-SC72AAA

Bourns

Thermal Cut-offs 72C Reinforced Cover SMD HC TCO

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Datasheet

4,783In Stock

Cut Tape

$1.86

$1.41

$1.21

$1.09

View

Reel

$0.822

MouseReel Available

Min.: 1
Mult.: 1

: 5,000

Surface Mount Fuses 1A Fast Acting 0402 SinglFuse

SF-0402F100-2
Bourns
1: $0.858
14,012In Stock

Mfr. Part No.
SF-0402F100-2

Mouser Part No
652-SF-0402F100-2

Bourns

Surface Mount Fuses 1A Fast Acting 0402 SinglFuse

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Datasheet

14,012In Stock

Cut Tape

$0.858

$0.819

$0.718

$0.542

View

Reel

$0.343

MouseReel Available

Min.: 1
Mult.: 1

: 10,000

Surface Mount Fuses 4A Fast Acting 0603 SinglFuse

SF-0603F400-2
Bourns
1: $0.744
21,956In Stock

Mfr. Part No.
SF-0603F400-2

Mouser Part No
652-SF-0603F400-2

Bourns

Surface Mount Fuses 4A Fast Acting 0603 SinglFuse

Learn More

Datasheet

21,956In Stock

Cut Tape

$0.744

$0.692

$0.613

$0.559

View

Reel

$0.322

MouseReel Available

Min.: 1
Mult.: 1

: 5,000

Surface Mount Fuses 3.15A Slow Blow 0603 SinglFuse

SF-0603S315-2
Bourns
1: $0.787
13,427In Stock

Mfr. Part No.
SF-0603S315-2

Mouser Part No
652-SF-0603S315-2

Bourns

Surface Mount Fuses 3.15A Slow Blow 0603 SinglFuse

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Datasheet

13,427In Stock

Cut Tape

$0.787

$0.774

$0.652

$0.416

View

Reel

$0.317

MouseReel Available

Min.: 1
Mult.: 1

: 5,000

Surface Mount Fuses .63A 32V TIME DELAY

SF-0603SP063-2
Bourns
1: $1.03
5,556In Stock

Mfr. Part No.
SF-0603SP063-2

Mouser Part No
652-SF-0603SP063-2

Bourns

Surface Mount Fuses .63A 32V TIME DELAY

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Datasheet

5,556In Stock

Cut Tape

$1.03

$0.864

$0.728

$0.605

View

Reel

$0.378

MouseReel Available

Min.: 1
Mult.: 1

: 5,000

Surface Mount Fuses 1A 32V TIME DELAY

SF-0603SP100-2
Bourns
1: $0.758
16,280In Stock

Mfr. Part No.
SF-0603SP100-2

Mouser Part No
652-SF-0603SP100-2

Bourns

Surface Mount Fuses 1A 32V TIME DELAY

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Datasheet

16,280In Stock

Cut Tape

$0.758

$0.711

$0.626

$0.592

View

Reel

$0.352

MouseReel Available

Min.: 1
Mult.: 1

: 5,000

Surface Mount Fuses 6A 50V TIME DELAY

SF-0603SP600-2
Bourns
1: $0.615
13,419In Stock

Mfr. Part No.
SF-0603SP600-2

Mouser Part No
652-SF-0603SP600-2

Bourns

Surface Mount Fuses 6A 50V TIME DELAY

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Datasheet

13,419In Stock

Cut Tape

$0.615

$0.529

$0.46

$0.399

$0.353

Reel

$0.352

MouseReel Available

Min.: 1
Mult.: 1

: 5,000

Surface Mount Fuses 0603 time-lag met-foil. 5A Auto

SF-0603SPA500R-2
Bourns
1: $1.39
4,537In Stock
5,000On Order

Mfr. Part No.
SF-0603SPA500R-2

Mouser Part No
652-SF-0603SPA500R-2

Bourns

Surface Mount Fuses 0603 time-lag met-foil. 5A Auto

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Datasheet

4,537In Stock

5,000On Order

Cut Tape

$1.39

$1.10

$0.914

$0.812

View

Reel

$0.512

MouseReel Available

Min.: 1
Mult.: 1

: 5,000

Thyristor Surge Protection Devices - TSPD Very Low Voltage Bidirectional

TISP4030L1AJR-S
Bourns
1: $1.16
19,646In Stock
10,000On Order

Mfr. Part No.
TISP4030L1AJR-S

Mouser Part No
652-TISP4030L1AJR-S

Bourns

Thyristor Surge Protection Devices - TSPD Very Low Voltage Bidirectional

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Datasheet

19,646In Stock

10,000On Order

Cut Tape

$1.16

$0.739

$0.398

$0.305

View

Reel

$0.226

MouseReel Available

Min.: 1
Mult.: 1

: 5,000

Surface Mount Fuses 1.25A 0402 micro

ERB-RD1R25X
Panasonic
1: $0.358
23,777In Stock

Mfr. Part No.
ERB-RD1R25X

Mouser Part No
667-ERB-RD1R25X

Panasonic

Surface Mount Fuses 1.25A 0402 micro

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Datasheet

23,777In Stock

Cut Tape

$0.358

$0.329

$0.273

$0.253

View

Reel

$0.156

MouseReel Available

Min.: 1
Mult.: 1

: 10,000

Surface Mount Fuses 1.25A 1206 microchip 63VDC

ERB-RG1R25V
Panasonic
1: $0.672
9,675In Stock

Mfr. Part No.
ERB-RG1R25V

Mouser Part No
667-ERB-RG1R25V

Panasonic

Surface Mount Fuses 1.25A 1206 microchip 63VDC

Learn More

Datasheet

9,675In Stock

Cut Tape

$0.672

$0.616

$0.512

$0.472

View

Reel

$0.303

MouseReel Available

Min.: 1
Mult.: 1

: 5,000

ESD Protection Diodes / TVS Diodes 5.5 Volt 36 Watt 3-Line USB Port

VBUS053AZ-HAF-GS08
Vishay Semiconductors
1: $0.486
48,207In Stock
30,000On Order

Mfr. Part No.
VBUS053AZ-HAF-GS08

Mouser Part No
78-VBUS053AZ-HAF

Vishay Semiconductors

ESD Protection Diodes / TVS Diodes 5.5 Volt 36 Watt 3-Line USB Port

Learn More

Datasheet

48,207In Stock

30,000On Order

Cut Tape

$0.486

$0.389

$0.337

$0.335

Reel

$0.296

View

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

NTC (Negative Temperature Coefficient) Thermistors 10K OHM 10% DO-35

103JG1KE
Littelfuse
1: $0.40
13,093In Stock

Mfr. Part No.
103JG1KE

Mouser Part No
803-103JG1KE

Littelfuse

NTC (Negative Temperature Coefficient) Thermistors 10K OHM 10% DO-35

Learn More

Datasheet

13,093In Stock

Cut Tape

$0.40

$0.368

$0.323

$0.307

View

Reel

$0.21

Min.: 1
Mult.: 1

: 5,000

Varistors 0402 39V 1.1 pF

AVRL101A1R1NTB
TDK
1: $1.14
19,050In Stock
20,000On Order

Mfr. Part No.
AVRL101A1R1NTB

Mouser Part No
810-AVRL101A1R1NTB

TDK

Varistors 0402 39V 1.1 pF

Learn More

Datasheet

19,050In Stock

20,000On Order

Cut Tape

$1.14

$0.734

$0.644

$0.601

View

Reel

$0.515

MouseReel Available

Min.: 1
Mult.: 1

: 10,000

NTC (Negative Temperature Coefficient) Thermistors THERMISTOR, NTC 10K OHM, 3%, 0201

NTCG063JH103HTB
TDK
1: $0.787
6,728In Stock

Mfr. Part No.
NTCG063JH103HTB

Mouser Part No
810-NTCG063JH103HT1

TDK

NTC (Negative Temperature Coefficient) Thermistors THERMISTOR, NTC 10K OHM, 3%, 0201

Learn More

Datasheet

6,728In Stock

Cut Tape

$0.787

$0.603

$0.558

$0.493

View

Reel

$0.39

MouseReel Available

Min.: 1
Mult.: 1

: 15,000

Triacs Triacs

2N6349AG
Littelfuse
1: $3.62
2,185In Stock
1,000On Order

Mfr. Part No.
2N6349AG

Mouser Part No
863-2N6349AG

Littelfuse

Triacs Triacs

Datasheet

2,185In Stock

1,000On Order

Cut Tape

$3.62

$2.35

$1.62

$1.41

Reel

$1.41

Min.: 1
Mult.: 1

: 1,000

Triacs 16A 35mA 800V IGT 3 QUAD INTERNL ISLTD

BTA16-800CW3G
Littelfuse
1: $6.09
1,281In Stock

Mfr. Part No.
BTA16-800CW3G

Mouser Part No
863-BTA16-800CW3G

Littelfuse

Triacs 16A 35mA 800V IGT 3 QUAD INTERNL ISLTD

Datasheet

1,281In Stock

$6.09

$3.49

$3.19

Min.: 1
Mult.: 1

Triacs Triacs

MAC15A8G
Littelfuse
1: $3.98
1,704In Stock

Mfr. Part No.
MAC15A8G

Mouser Part No
863-MAC15A8G

Littelfuse

Triacs Triacs

Datasheet

1,704In Stock

Cut Tape

$3.98

$2.27

$1.80

$1.74

Reel

$1.74

Min.: 1
Mult.: 1

: 1,000

ESD Protection Diodes / TVS Diodes 5 PIN BIDRECTNL QUAD

NUP4004M5T1G
onsemi
1: $1.43
31,217In Stock

Mfr. Part No.
NUP4004M5T1G

Mouser Part No
863-NUP4004M5T1G

onsemi

ESD Protection Diodes / TVS Diodes 5 PIN BIDRECTNL QUAD

Datasheet

31,217In Stock

Cut Tape

$1.43

$1.18

$0.844

$0.664

Reel

$0.562

View

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

Inrush Current Limiters 5OHMS 5A 330UF RMIN@IMAX 0.13OHMS

B57211P0120M301
TDK
1: $1.39
2,890In Stock

Mfr. Part No.
B57211P0120M301

Mouser Part No
871-B57211P0120M301

TDK

Inrush Current Limiters 5OHMS 5A 330UF RMIN@IMAX 0.13OHMS

Learn More

Datasheet

2,890In Stock

$1.39

$1.24

$1.07

$0.985

View

Min.: 1
Mult.: 1

NTC (Negative Temperature Coefficient) Thermistors 1307ohm 4036 2% 50mW Probe K524/100k/A005

B57524K0104A005
TDK
1: $9.48
360In Stock

Mfr. Part No.
B57524K0104A005

Mouser Part No
871-B57524K0104A005

TDK

NTC (Negative Temperature Coefficient) Thermistors 1307ohm 4036 2% 50mW Probe K524/100k/A005

Learn More

Datasheet

360In Stock

$9.48

$8.54

$8.19

$7.78

View

Min.: 1
Mult.: 1

Circuit Protection

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