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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: 359,447

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Part #

NTC Thermistors 10 dia Power NTC 15ohm Y kink bulk

BN-LG10Y150MYB
Bourns
1: $0.598
15,058In Stock

Mfr. Part #
BN-LG10Y150MYB

Mouser Part #
652-BN-LG10Y150MYB

Bourns

NTC Thermistors 10 dia Power NTC 15ohm Y kink bulk

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Datasheet

15,058In Stock

$0.598

$0.51

$0.443

$0.381

View

Min.: 1
Mult.: 1

Automotive Fuses POWrFuse BD 275Vac 500Vdc 15A

PF-KB1-15
Bourns
1: $27.85
144In Stock

Mfr. Part #
PF-KB1-15

Mouser Part #
652-PF-KB1-15

Bourns

Automotive Fuses POWrFuse BD 275Vac 500Vdc 15A

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Datasheet

144In Stock

$27.85

$24.69

$24.60

$22.49

Min.: 1
Mult.: 1

Connectorized Surge Protectors Combined Ethernet Surge Protective Device (SPD) and POE 48V injector/splitter

MSP-VM48/RINJ
Citel
1: $199.65
20In Stock

Mfr. Part #
MSP-VM48/RINJ

Mouser Part #
703-MSP-VM48/RINJ

Citel

Connectorized Surge Protectors Combined Ethernet Surge Protective Device (SPD) and POE 48V injector/splitter

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Datasheet

20In Stock

$199.65

$165.54

$156.23

$156.20

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Min.: 1
Mult.: 1

ESD Protection Diodes / TVS Diodes 600W,16V 5%, DFN3820A TVS

6DFN16A-M3/I
Vishay Semiconductors
1: $0.962
27,820In Stock

Mfr. Part #
6DFN16A-M3/I

Mouser Part #
78-6DFN16A-M3/I

Vishay Semiconductors

ESD Protection Diodes / TVS Diodes 600W,16V 5%, DFN3820A TVS

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Datasheet

27,820In Stock

Cut Tape

$0.962

$0.592

$0.38

$0.289

Reel

$0.192

View

Min.: 1
Mult.: 1

: 14,000

ESD Protection Diodes / TVS Diodes 600W,24V 5%, DFN3820A TVS

6DFN24A-M3/I
Vishay Semiconductors
1: $0.962
26,751In Stock

Mfr. Part #
6DFN24A-M3/I

Mouser Part #
78-6DFN24A-M3/I

Vishay Semiconductors

ESD Protection Diodes / TVS Diodes 600W,24V 5%, DFN3820A TVS

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Datasheet

26,751In Stock

Cut Tape

$0.962

$0.593

$0.381

$0.29

View

Reel

$0.161

Min.: 1
Mult.: 1

: 14,000

ESD Protection Diodes / TVS Diodes 600W,33V 5%, DFN3820A TVS

6DFN33A-M3/I
Vishay Semiconductors
1: $0.936
27,287In Stock

Mfr. Part #
6DFN33A-M3/I

Mouser Part #
78-6DFN33A-M3/I

Vishay Semiconductors

ESD Protection Diodes / TVS Diodes 600W,33V 5%, DFN3820A TVS

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Datasheet

27,287In Stock

Cut Tape

$0.936

$0.575

$0.369

$0.281

View

Reel

$0.16

Min.: 1
Mult.: 1

: 14,000

ESD Protection Diodes / TVS Diodes MSMP - A 8V

MSMP8.0AHM3/H
Vishay Semiconductors
1: $0.52
44,805In Stock

Mfr. Part #
MSMP8.0AHM3/H

Mouser Part #
78-MSMP8.0AHM3/H

Vishay Semiconductors

ESD Protection Diodes / TVS Diodes MSMP - A 8V

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Datasheet

44,805In Stock

Cut Tape

$0.52

$0.231

$0.202

$0.151

Reel

$0.088

View

MouseReel Available

Min.: 1
Mult.: 1

: 4,500

ESD Protection Diodes / TVS Diodes T4F - A 43V

T4F43AHM3/H
Vishay Semiconductors
1: $0.598
35,928In Stock

Mfr. Part #
T4F43AHM3/H

Mouser Part #
78-T4F43AHM3/H

Vishay Semiconductors

ESD Protection Diodes / TVS Diodes T4F - A 43V

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Datasheet

35,928In Stock

Cut Tape

$0.598

$0.282

$0.23

$0.178

Reel

$0.129

View

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

ESD Protection Diodes / TVS Diodes T4F - A 51V

T4F51AHM3/H
Vishay Semiconductors
1: $0.351
35,790In Stock

Mfr. Part #
T4F51AHM3/H

Mouser Part #
78-T4F51AHM3/H

Vishay Semiconductors

ESD Protection Diodes / TVS Diodes T4F - A 51V

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Datasheet

35,790In Stock

Cut Tape

$0.351

$0.186

$0.159

$0.13

Reel

$0.113

View

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

ESD Protection Diodes / TVS Diodes 4-Line 3.3V 0.3pF ESD SMF2510N10 Z-Ultra

RCLAMP03354P.C
Semtech
1: $1.55
11,199In Stock

Mfr. Part #
RCLAMP03354P.C

Mouser Part #
947-RCLAMP03354P.C

Semtech

ESD Protection Diodes / TVS Diodes 4-Line 3.3V 0.3pF ESD SMF2510N10 Z-Ultra

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Datasheet

11,199In Stock

Cut Tape

$1.55

$0.884

$0.757

$0.598

Reel

$0.451

View

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

Circuit Breaker Accessories 14 TERM GROUND BAR+2/0 LUG-CH/BR PON

GBKP1420
Eaton Electrical
1: $122.90
4In Stock
New Product

Mfr. Part #
GBKP1420

Mouser Part #
504-GBKP1420

New Product

Eaton Electrical

Circuit Breaker Accessories 14 TERM GROUND BAR+2/0 LUG-CH/BR PON

Datasheet

4In Stock

$122.90

$102.80

$97.41

$81.17

View

Min.: 1
Mult.: 1

Circuit Breaker Accessories UNDERVOLTAGE RELEASE

NZM4-XU480-525AC
Eaton Electrical
1: $1,112.46
1In Stock
New Product

Mfr. Part #
NZM4-XU480-525AC

Mouser Part #
504-NZM4-XU480-525AC

New Product

Eaton Electrical

Circuit Breaker Accessories UNDERVOLTAGE RELEASE

Datasheet

1In Stock

$1,112.46

$1,044.54

$998.14

View

Min.: 1
Mult.: 1

Circuit Breaker Accessories 1A/1B ALARM SW

MA1L1RPK
Eaton Electrical
1: $744.50
1In Stock
New Product

Mfr. Part #
MA1L1RPK

Mouser Part #
504-MA1L1RPK

New Product

Eaton Electrical

Circuit Breaker Accessories 1A/1B ALARM SW

1In Stock

$744.50

$573.30

$547.59

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Min.: 1
Mult.: 1

ESD Protection Diodes / TVS Diodes 600W,28V 5%, SlimSMA BIDIR TVS

SMA6F28CA-M3/H
Vishay Semiconductors
1: $0.897
3,460In Stock
New Product

Mfr. Part #
SMA6F28CA-M3/H

Mouser Part #
78-SMA6F28CA-M3\H

New Product

Vishay Semiconductors

ESD Protection Diodes / TVS Diodes 600W,28V 5%, SlimSMA BIDIR TVS

Datasheet

3,460In Stock

Cut Tape

$0.897

$0.55

$0.352

$0.268

Reel

$0.205

View

Min.: 1
Mult.: 1

: 3,500

Thermal Cutoffs TCO, High Current, SMD, 85C, Self Hold AEC-Q200

SD85ABB
Bourns
1: $3.51
3,758In Stock

Mfr. Part #
SD85ABB

Mouser Part #
652-SD85ABB

Bourns

Thermal Cutoffs TCO, High Current, SMD, 85C, Self Hold AEC-Q200

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Datasheet

3,758In Stock

Cut Tape

$3.51

$3.04

$2.46

$2.08

View

Reel

$1.33

MouseReel Available

Min.: 1
Mult.: 1

: 4,000

Circuit Breaker Accessories JG VARI DEPTH KIT - 12" SHAFT /BLACK

FJHMVD12
Eaton Electrical
1: $328.20
3In Stock
New Product

Mfr. Part #
FJHMVD12

Mouser Part #
504-FJHMVD12

New Product

Eaton Electrical

Circuit Breaker Accessories JG VARI DEPTH KIT - 12" SHAFT /BLACK

3In Stock

$328.20

$243.07

$230.15

$214.03

View

Min.: 1
Mult.: 1

Circuit Breaker Accessories Clamshell - Ground Bar Kit - 14 Terminal

GBK14CS
Eaton Electrical
1: $65.88
5In Stock
New Product

Mfr. Part #
GBK14CS

Mouser Part #
504-GBK14CS

New Product

Eaton Electrical

Circuit Breaker Accessories Clamshell - Ground Bar Kit - 14 Terminal

Datasheet

5In Stock

$65.88

$54.65

$50.96

$45.47

View

Min.: 1
Mult.: 1

Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 3 ELECT / 1100v

B88069X7931T702
TDK
1: $8.45
467In Stock
New Product

Mfr. Part #
B88069X7931T702

Mouser Part #
871-B88069X7931T702

New Product

TDK

Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 3 ELECT / 1100v

Datasheet

467In Stock

Cut Tape

$8.45

$7.54

$7.27

$5.66

Reel

$4.06

View

Min.: 1
Mult.: 1

: 700

Thermal Cutoffs TCO, High Current, Axial Lead, 55C, Self Hold AEC-Q200

AD55ABB
Bourns
1: $2.85
2,467In Stock

Mfr. Part #
AD55ABB

Mouser Part #
652-AD55ABB

Bourns

Thermal Cutoffs TCO, High Current, Axial Lead, 55C, Self Hold AEC-Q200

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Datasheet

2,467In Stock

$2.85

$2.63

$2.04

$1.79

View

Min.: 1
Mult.: 1

Thermal Cutoffs TCO, High Current, SMD, 82C, non Self Hold AEC-Q200

SD82WBB
Bourns
1: $2.98
4,997In Stock

Mfr. Part #
SD82WBB

Mouser Part #
652-SD82WBB

Bourns

Thermal Cutoffs TCO, High Current, SMD, 82C, non Self Hold AEC-Q200

Learn More

Datasheet

4,997In Stock

Cut Tape

$2.98

$2.76

$2.74

$2.29

View

Reel

$1.33

MouseReel Available

Min.: 1
Mult.: 1

: 4,000

Resettable Fuses - PPTC 6V POLYFUSE 0603 LoRho SL 1.75A

0603L175SLYR
Littelfuse
1: $2.13
16,259In Stock

Mfr. Part #
0603L175SLYR

Mouser Part #
576-0603L175SLYR

Littelfuse

Resettable Fuses - PPTC 6V POLYFUSE 0603 LoRho SL 1.75A

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Datasheet

16,259In Stock

Cut Tape

$2.13

$1.81

$1.60

$1.53

View

Reel

$1.04

MouseReel Available

Min.: 1
Mult.: 1

: 4,000

Automotive Fuses 200A 32VDC Limiter Fuse

0CNL200.V
Littelfuse
1: $52.08
916In Stock

Mfr. Part #
0CNL200.V

Mouser Part #
576-0CNL200.V

Littelfuse

Automotive Fuses 200A 32VDC Limiter Fuse

Datasheet

916In Stock

$52.08

$43.20

$30.21

$26.25

$25.08

Min.: 1
Mult.: 1

Resettable Fuses - PPTC 6V POLYFUSE 1206 LoRho SL 3.00A

1206L300SLTHYR
Littelfuse
1: $2.44
45,533In Stock

Mfr. Part #
1206L300SLTHYR

Mouser Part #
576-1206L300SLTHYR

Littelfuse

Resettable Fuses - PPTC 6V POLYFUSE 1206 LoRho SL 3.00A

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Datasheet

45,533In Stock

Cut Tape

$2.44

$2.25

$1.86

$1.69

View

Reel

$1.04

MouseReel Available

Min.: 1
Mult.: 1

: 4,000

ESD Protection Diodes / TVS Diodes 8.0SMDJ - CA 100V

8.0SMDJ100CA
Littelfuse
1: $7.02
6,383In Stock

Mfr. Part #
8.0SMDJ100CA

Mouser Part #
576-8.0SMDJ100CA

Littelfuse

ESD Protection Diodes / TVS Diodes 8.0SMDJ - CA 100V

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Datasheet

6,383In Stock

Cut Tape

$7.02

$4.08

$3.60

$3.19

View

Reel

$2.60

Min.: 1
Mult.: 1

: 3,000

Fuse Holder CLASS G FUSE BLOCK 480V 60A 3 POLE

LFG480603CDINR
Littelfuse
1: $119.83
468In Stock

Mfr. Part #
LFG480603CDINR

Mouser Part #
576-LFG480603CDINR

Littelfuse

Fuse Holder CLASS G FUSE BLOCK 480V 60A 3 POLE

Datasheet

468In Stock

$119.83

$99.11

$91.25

Min.: 1
Mult.: 1

Circuit Protection

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