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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: 362,063

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Part #

Board Mount Surge Protectors Hi V Surge Stopper

LTC4366IDDB-2#TRMPBF
Analog Devices
1: $13.40
6,835In Stock

Mfr. Part No.
LTC4366IDDB-2#TRMPBF

Mouser Part No
584-C4366IDDB-2TMPF

Analog Devices

Board Mount Surge Protectors Hi V Surge Stopper

Datasheet

6,835In Stock

Cut Tape

$13.40

$10.44

$9.71

$8.89

Reel

$8.26

View

MouseReel Available

Min.: 1
Mult.: 1

: 500

Board Mount Surge Protectors 100V Overvoltage, Undervoltage & Reverse

LTC4367IMS8-1#PBF
Analog Devices
1: $8.96
7,315In Stock

Mfr. Part No.
LTC4367IMS8-1#PBF

Mouser Part No
584-LTC4367IMS8-1PBF

Analog Devices

Board Mount Surge Protectors 100V Overvoltage, Undervoltage & Reverse

Datasheet

7,315In Stock

$8.96

$6.90

$6.04

$5.79

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Min.: 1
Mult.: 1
Max.: 750

Varistors 620V 40KA MOV Disc Square 34mm

621KS34
YAGEO
1: $8.09
9,833In Stock

Mfr. Part No.
621KS34

Mouser Part No
603-621KS34

YAGEO

Varistors 620V 40KA MOV Disc Square 34mm

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Datasheet

9,833In Stock

$8.09

$6.19

$5.62

$4.54

View

Min.: 1
Mult.: 1

ESD Protection Diodes / TVS Diodes P6SMB - A 160V

P6SMB160A-Q
Bourns
1: $0.952
119,948In Stock

Mfr. Part No.
P6SMB160A-Q

Mouser Part No
652-P6SMB160A-Q

Bourns

ESD Protection Diodes / TVS Diodes P6SMB - A 160V

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Datasheet

119,948In Stock

Cut Tape

$0.952

$0.583

$0.374

$0.284

Reel

$0.218

View

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

Board Mount Surge Protectors 100mA 850Vimp

P850-G120-WH
Bourns
1: $3.24
24,235In Stock

Mfr. Part No.
P850-G120-WH

Mouser Part No
652-P850-G120-WH

Bourns

Board Mount Surge Protectors 100mA 850Vimp

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Datasheet

Product Comments

24,235In Stock

Cut Tape

$3.24

$2.82

$1.94

$1.58

$1.48

Reel

$1.22

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

ESD Protection Diodes / TVS Diodes 1KA high current bidirectional TVS diodes

PTVS1-029C-H
Bourns
1: $6.50
7,480In Stock

Mfr. Part No.
PTVS1-029C-H

Mouser Part No
652-PTVS1-029C-H

Bourns

ESD Protection Diodes / TVS Diodes 1KA high current bidirectional TVS diodes

Learn More

Datasheet

7,480In Stock

Cut Tape

$6.50

$4.18

$3.66

$3.44

$3.24

Reel

$2.80

MouseReel Available

Min.: 1
Mult.: 1

: 2,500

SCRs New Input Thyristor - D2PAK-e3

VS-25TTS08STRL-M3
Vishay Semiconductors
1: $6.99
7,780In Stock

Mfr. Part No.
VS-25TTS08STRL-M3

Mouser Part No
78-VS-25TTS08STRL-M3

Vishay Semiconductors

SCRs New Input Thyristor - D2PAK-e3

Datasheet

7,780In Stock

Cut Tape

$6.99

$4.64

$3.30

$2.82

Reel

$2.82

Min.: 1
Mult.: 1

: 800

PTC (Positive Temperature Coefficient) Thermistors 0603 470ohms 85C Temperature Sensor

B59641A0085A062
TDK
1: $0.517
155,118In Stock

Mfr. Part No.
B59641A0085A062

Mouser Part No
871-B59641A0085A062

TDK

PTC (Positive Temperature Coefficient) Thermistors 0603 470ohms 85C Temperature Sensor

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Datasheet

155,118In Stock

Cut Tape

$0.517

$0.472

$0.407

$0.335

Reel

$0.256

View

MouseReel Available

Min.: 1
Mult.: 1

: 4,000

ESD Protection Diodes / TVS Diodes RAILCLAMP0524S 5V SOT

RCLAMP0524S.TCT
Semtech
1: $1.82
70,925In Stock

Mfr. Part No.
RCLAMP0524S.TCT

Mouser Part No
947-RCLAMP0524S.TCT

Semtech

ESD Protection Diodes / TVS Diodes RAILCLAMP0524S 5V SOT

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Datasheet

70,925In Stock

Cut Tape

$1.82

$1.22

$1.07

$0.922

Reel

$0.698

View

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

NTC (Negative Temperature Coefficient) Thermistors 10 dia Power NTC 15ohm Y kink bulk

BN-LG10Y150MYB
Bourns
1: $0.558
15,058In Stock

Mfr. Part No.
BN-LG10Y150MYB

Mouser Part No
652-BN-LG10Y150MYB

Bourns

NTC (Negative Temperature Coefficient) Thermistors 10 dia Power NTC 15ohm Y kink bulk

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Datasheet

15,058In Stock

$0.558

$0.50

$0.438

$0.384

View

Min.: 1
Mult.: 1

Automotive Fuses POWrFuse BD 275Vac 500Vdc 15A

PF-KB1-15
Bourns
1: $29.13
144In Stock

Mfr. Part No.
PF-KB1-15

Mouser Part No
652-PF-KB1-15

Bourns

Automotive Fuses POWrFuse BD 275Vac 500Vdc 15A

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Datasheet

144In Stock

$29.13

$25.83

$25.73

$23.53

Min.: 1
Mult.: 1

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

MSP-VM48/RINJ
Citel
1: $208.87
20In Stock

Mfr. Part No.
MSP-VM48/RINJ

Mouser Part No
703-MSP-VM48/RINJ

Citel

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

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Datasheet

20In Stock

$208.87

$173.18

$163.44

$163.40

View

Min.: 1
Mult.: 1

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

6DFN16A-M3/I
Vishay Semiconductors
1: $1.01
27,820In Stock

Mfr. Part No.
6DFN16A-M3/I

Mouser Part No
78-6DFN16A-M3/I

Vishay Semiconductors

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

Learn More

Datasheet

27,820In Stock

Cut Tape

$1.01

$0.619

$0.397

$0.302

Reel

$0.201

View

Min.: 1
Mult.: 1

: 14,000

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

6DFN24A-M3/I
Vishay Semiconductors
1: $1.01
26,751In Stock

Mfr. Part No.
6DFN24A-M3/I

Mouser Part No
78-6DFN24A-M3/I

Vishay Semiconductors

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

Learn More

Datasheet

26,751In Stock

Cut Tape

$1.01

$0.62

$0.398

$0.303

View

Reel

$0.169

Min.: 1
Mult.: 1

: 14,000

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

6DFN33A-M3/I
Vishay Semiconductors
1: $0.979
27,287In Stock

Mfr. Part No.
6DFN33A-M3/I

Mouser Part No
78-6DFN33A-M3/I

Vishay Semiconductors

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

Learn More

Datasheet

27,287In Stock

Cut Tape

$0.979

$0.601

$0.386

$0.294

View

Reel

$0.167

Min.: 1
Mult.: 1

: 14,000

ESD Protection Diodes / TVS Diodes MSMP - A 8V

MSMP8.0AHM3/H
Vishay Semiconductors
1: $0.544
44,805In Stock

Mfr. Part No.
MSMP8.0AHM3/H

Mouser Part No
78-MSMP8.0AHM3/H

Vishay Semiconductors

ESD Protection Diodes / TVS Diodes MSMP - A 8V

Learn More

Datasheet

44,805In Stock

Cut Tape

$0.544

$0.242

$0.211

$0.158

Reel

$0.092

View

MouseReel Available

Min.: 1
Mult.: 1

: 4,500

ESD Protection Diodes / TVS Diodes T4F - A 43V

T4F43AHM3/H
Vishay Semiconductors
1: $0.626
35,928In Stock

Mfr. Part No.
T4F43AHM3/H

Mouser Part No
78-T4F43AHM3/H

Vishay Semiconductors

ESD Protection Diodes / TVS Diodes T4F - A 43V

Learn More

Datasheet

35,928In Stock

Cut Tape

$0.626

$0.295

$0.241

$0.186

Reel

$0.135

View

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

ESD Protection Diodes / TVS Diodes T4F - A 51V

T4F51AHM3/H
Vishay Semiconductors
1: $0.367
35,790In Stock

Mfr. Part No.
T4F51AHM3/H

Mouser Part No
78-T4F51AHM3/H

Vishay Semiconductors

ESD Protection Diodes / TVS Diodes T4F - A 51V

Learn More

Datasheet

35,790In Stock

Cut Tape

$0.367

$0.194

$0.166

$0.136

Reel

$0.118

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: $1.62
11,419In Stock

Mfr. Part No.
RCLAMP03354P.C

Mouser Part No
947-RCLAMP03354P.C

Semtech

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

Learn More

Datasheet

11,419In Stock

Cut Tape

$1.62

$0.925

$0.792

$0.626

Reel

$0.472

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: $128.57
4In Stock
New Product

Mfr. Part No.
GBKP1420

Mouser Part No
504-GBKP1420

New Product

Eaton Electrical

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

Datasheet

4In Stock

$128.57

$107.55

$101.90

$84.92

View

Min.: 1
Mult.: 1

Circuit Breaker Accessories UNDERVOLTAGE RELEASE

NZM4-XU480-525AC
Eaton Electrical
1: $1,176.44
1In Stock
New Product

Mfr. Part No.
NZM4-XU480-525AC

Mouser Part No
504-NZM4-XU480-525AC

New Product

Eaton Electrical

Circuit Breaker Accessories UNDERVOLTAGE RELEASE

Datasheet

1In Stock

$1,176.44

$1,089.02

$1,057.70

View

Min.: 1
Mult.: 1

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

FJHMVD12
Eaton Electrical
1: $343.35
3In Stock
New Product

Mfr. Part No.
FJHMVD12

Mouser Part No
504-FJHMVD12

New Product

Eaton Electrical

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

3In Stock

$343.35

$254.29

$240.77

$223.91

View

Min.: 1
Mult.: 1

Circuit Breaker Accessories Clamshell - Ground Bar Kit - 14 Terminal

GBK14CS
Eaton Electrical
1: $68.92
5In Stock
New Product

Mfr. Part No.
GBK14CS

Mouser Part No
504-GBK14CS

New Product

Eaton Electrical

Circuit Breaker Accessories Clamshell - Ground Bar Kit - 14 Terminal

Datasheet

5In Stock

$68.92

$57.17

$53.39

$47.89

View

Min.: 1
Mult.: 1

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

B88069X7931T702
TDK
1: $8.84
467In Stock
New Product

Mfr. Part No.
B88069X7931T702

Mouser Part No
871-B88069X7931T702

New Product

TDK

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

Datasheet

467In Stock

Cut Tape

$8.84

$7.89

$7.60

$5.92

Reel

$4.30

View

Min.: 1
Mult.: 1

: 700

Circuit Breaker Accessories 1A/1B ALARM SW

MA1L1RPK
Eaton Electrical
1: $778.86
1In Stock
New Product

Mfr. Part No.
MA1L1RPK

Mouser Part No
504-MA1L1RPK

New Product

Eaton Electrical

Circuit Breaker Accessories 1A/1B ALARM SW

1In Stock

$778.86

$573.13

$556.40

View

Min.: 1
Mult.: 1

Circuit Protection

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