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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 #

Automotive Fuses FUSE - ZCASE MEGA 32V M10 80A 480 PC

3298080.ZXM10
Littelfuse
1: $12.08
338In Stock
New Product

Mfr. Part No.
3298080.ZXM10

Mouser Part No
576-3298080.ZXM10

New Product

Littelfuse

Automotive Fuses FUSE - ZCASE MEGA 32V M10 80A 480 PC

Datasheet

338In Stock

$12.08

$11.66

$10.33

$8.33

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Min.: 1
Mult.: 1

ESD Protection Diodes / TVS Diodes ESD PROTECTION DIODE SOT23

VGSOT24C-HG3-08
Vishay Semiconductors
1: $0.55
29,539In Stock
New Product

Mfr. Part No.
VGSOT24C-HG3-08

Mouser Part No
78-VGSOT24C-HG3-08

New Product

Vishay Semiconductors

ESD Protection Diodes / TVS Diodes ESD PROTECTION DIODE SOT23

Learn More

Datasheet

29,539In Stock

Cut Tape

$0.55

$0.286

$0.213

$0.16

Reel

$0.122

View

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

NTC (Negative Temperature Coefficient) Thermistors 30K, +/-0.2C: 0C-70C, B3942, uninsulated wire

TTS-30KC5-BG
CTS Electronic Components
1: $2.24
249In Stock
251Expected 2026/11/12
New Product

Mfr. Part No.
TTS-30KC5-BG

Mouser Part No
774-TTS30KC5BG

New Product

CTS Electronic Components

NTC (Negative Temperature Coefficient) Thermistors 30K, +/-0.2C: 0C-70C, B3942, uninsulated wire

Learn More

Datasheet

249In Stock

251Expected 2026/11/12

$2.24

$1.93

$1.84

$1.67

View

Min.: 1
Mult.: 1

ESD Protection Diodes / TVS Diodes AUTO TVS DIODE, SMAJE FAMILY, 33Vdc, Uni

SMAJE33AH
Eaton Electronics
1: $0.43
2,984In Stock
New Product

Mfr. Part No.
SMAJE33AH

Mouser Part No
504-MAJE33AH

New Product

Eaton Electronics

ESD Protection Diodes / TVS Diodes AUTO TVS DIODE, SMAJE FAMILY, 33Vdc, Uni

Learn More

Datasheet

2,984In Stock

Cut Tape

$0.43

$0.277

$0.164

$0.124

Reel

$0.084

View

Min.: 1
Mult.: 1

: 5,000

Circuit Breakers C Series 120A DC Hydraulic/Magnetic Circuit Breaker, UL489A, Black Handle

CA1-P0-D6-812-321-MT
Carling Technologies
1: $65.76
8In Stock
New Product

Mfr. Part No.
CA1-P0-D6-812-321-MT

Mouser Part No
691-CA1-P0D6812321MT

New Product

Carling Technologies

Circuit Breakers C Series 120A DC Hydraulic/Magnetic Circuit Breaker, UL489A, Black Handle

Datasheet

8In Stock

$65.76

$54.54

$50.32

$41.65

View

Min.: 1
Mult.: 1

NTC (Negative Temperature Coefficient) Thermistors 1K, +/-0.2C: 0C-70C, B3977,Teflon insulated wire

TTS-1KC3-BZ
CTS Electronic Components
1: $2.41
500In Stock
New Product

Mfr. Part No.
TTS-1KC3-BZ

Mouser Part No
774-TTS1KC3BZ

New Product

CTS Electronic Components

NTC (Negative Temperature Coefficient) Thermistors 1K, +/-0.2C: 0C-70C, B3977,Teflon insulated wire

Learn More

Datasheet

500In Stock

$2.41

$2.08

$1.97

$1.79

View

Min.: 1
Mult.: 1

ESD Protection Diodes / TVS Diodes DIODE ESD UNI-DIRECTIONAL 5VWM 5A SOD-723

CPDE5V0U-HF
Comchip Technology
1: $0.361
5,193In Stock
New Product

Mfr. Part No.
CPDE5V0U-HF

Mouser Part No
750-CPDE5V0U-HF

New Product

Comchip Technology

ESD Protection Diodes / TVS Diodes DIODE ESD UNI-DIRECTIONAL 5VWM 5A SOD-723

Learn More

Datasheet

5,193In Stock

Cut Tape

$0.361

$0.254

$0.16

$0.099

Reel

$0.049

View

Min.: 1
Mult.: 1

: 8,000

NTC (Negative Temperature Coefficient) Thermistors 20K, +/-0.2C: 0C-70C, B4260, Teflon insulated wire

TTS-20KC6-BZ
CTS Electronic Components
1: $2.41
386In Stock
114Expected 2026/11/12
New Product

Mfr. Part No.
TTS-20KC6-BZ

Mouser Part No
774-TTS20KC6BZ

New Product

CTS Electronic Components

NTC (Negative Temperature Coefficient) Thermistors 20K, +/-0.2C: 0C-70C, B4260, Teflon insulated wire

Learn More

Datasheet

386In Stock

114Expected 2026/11/12

$2.41

$2.08

$1.97

$1.79

View

Min.: 1
Mult.: 1

ESD Protection Diodes / TVS Diodes DIODE ESD BI-DIRECTIONAL 5VWM 5A SOD-723

CPDE5V0-HF
Comchip Technology
1: $0.361
4,352In Stock
New Product

Mfr. Part No.
CPDE5V0-HF

Mouser Part No
750-CPDE5V0-HF

New Product

Comchip Technology

ESD Protection Diodes / TVS Diodes DIODE ESD BI-DIRECTIONAL 5VWM 5A SOD-723

Learn More

Datasheet

4,352In Stock

Cut Tape

$0.361

$0.254

$0.16

$0.099

Reel

$0.049

View

Min.: 1
Mult.: 1

: 8,000

NTC (Negative Temperature Coefficient) Thermistors 3K, +/-0.2C: 0C-70C, B3977, uninsulated wire

TTS-3KC3-BG
CTS Electronic Components
1: $2.24
500In Stock
New Product

Mfr. Part No.
TTS-3KC3-BG

Mouser Part No
774-TTS3KC3BG

New Product

CTS Electronic Components

NTC (Negative Temperature Coefficient) Thermistors 3K, +/-0.2C: 0C-70C, B3977, uninsulated wire

Learn More

Datasheet

500In Stock

$2.24

$1.93

$1.84

$1.67

View

Min.: 1
Mult.: 1

Circuit Breaker Accessories 250A 3P Thermal Mag Fixed/Adj Trip Unit

JT3250FA
Eaton Electrical
1: $1,803.44
1In Stock
New Product

Mfr. Part No.
JT3250FA

Mouser Part No
504-JT3250FA

New Product

Eaton Electrical

Circuit Breaker Accessories 250A 3P Thermal Mag Fixed/Adj Trip Unit

1In Stock

$1,803.44

Min.: 1
Mult.: 1

NTC (Negative Temperature Coefficient) Thermistors 50K, +/-0.2C: 0C-70C, B4260, Teflon insulated wire

TTS-50KC6-BZ
CTS Electronic Components
1: $2.41
250In Stock
New Product

Mfr. Part No.
TTS-50KC6-BZ

Mouser Part No
774-TTS50KC6BZ

New Product

CTS Electronic Components

NTC (Negative Temperature Coefficient) Thermistors 50K, +/-0.2C: 0C-70C, B4260, Teflon insulated wire

Learn More

Datasheet

250In Stock

$2.41

$2.08

$1.97

$1.79

View

Min.: 1
Mult.: 1

Circuit Breaker Accessories LG 3 Pole 400A LSI Electronic Trip Unit

LT340032
Eaton Electrical
1: $3,885.47
1In Stock
New Product

Mfr. Part No.
LT340032

Mouser Part No
504-LT340032

New Product

Eaton Electrical

Circuit Breaker Accessories LG 3 Pole 400A LSI Electronic Trip Unit

1In Stock

$3,885.47

Min.: 1
Mult.: 1

Circuit Breaker Accessories LATCH CHECK SWITCH

699B147G01
Eaton Electrical
1: $1,226.55
2In Stock
New Product

Mfr. Part No.
699B147G01

Mouser Part No
504-699B147G01

New Product

Eaton Electrical

Circuit Breaker Accessories LATCH CHECK SWITCH

Datasheet

2In Stock

$1,226.55

Min.: 1
Mult.: 1

Circuit Breakers BR 30A/2 Pole Com. Trip 120/240V 22K

BRH230
Eaton Electrical
1: $449.01
3In Stock
New Product

Mfr. Part No.
BRH230

Mouser Part No
504-BRH230

New Product

Eaton Electrical

Circuit Breakers BR 30A/2 Pole Com. Trip 120/240V 22K

Datasheet

3In Stock

$449.01

$330.62

$310.20

$278.36

View

Min.: 1
Mult.: 1

Circuit Breakers PDG2,3P,20A,25KA/480V,FXFXTMTU

PDG23F0020TFFJ
Eaton Electrical
1: $738.75
2In Stock
New Product

Mfr. Part No.
PDG23F0020TFFJ

Mouser Part No
504-PDG23F0020TFFJ

New Product

Eaton Electrical

Circuit Breakers PDG2,3P,20A,25KA/480V,FXFXTMTU

Datasheet

2In Stock

$738.75

$611.98

$564.01

Min.: 1
Mult.: 1

Circuit Breakers PDG2, 50A, MCP, STD CALIBRATION-HMCPS

PDG23M0050MSAN
Eaton Electrical
1: $824.89
1In Stock
New Product

Mfr. Part No.
PDG23M0050MSAN

Mouser Part No
504-PDG23M0050MSAN

New Product

Eaton Electrical

Circuit Breakers PDG2, 50A, MCP, STD CALIBRATION-HMCPS

Datasheet

1In Stock

$824.89

$683.33

$629.76

Min.: 1
Mult.: 1

NTC (Negative Temperature Coefficient) Thermistors NTC Mini Ni 0.4 ld 10K 1% blk 0.4e/1e A

NTCLE213E3103FHB0A
Vishay / BC Components
1: $1.92
1,902In Stock
New Product

Mfr. Part No.
NTCLE213E3103FHB0A

Mouser Part No
594-NTCLE213E313FHB

New Product

Vishay / BC Components

NTC (Negative Temperature Coefficient) Thermistors NTC Mini Ni 0.4 ld 10K 1% blk 0.4e/1e A

Datasheet

1,902In Stock

$1.92

$1.44

$1.15

$1.08

View

Min.: 1
Mult.: 1

Connectorised Surge Protectors 4.3-10 F/F BULKHEAD COAXIAL RF SURGE PROTECTOR 698

PE73SP1061
Pasternack
1: $203.46
1In Stock
New Product

Mfr. Part No.
PE73SP1061

Mouser Part No
28-PE73SP1061

New Product

Pasternack

Connectorised Surge Protectors 4.3-10 F/F BULKHEAD COAXIAL RF SURGE PROTECTOR 698

Datasheet

1In Stock

$203.46

$181.73

$178.26

$177.62

View

Min.: 1
Mult.: 1

Circuit Breakers 1PH/BR LC 70A MLO 2/4 Cir Al Bus N3R

BR24L70RP
Eaton Electrical
1: $371.45
1In Stock
New Product

Mfr. Part No.
BR24L70RP

Mouser Part No
504-BR24L70RP

New Product

Eaton Electrical

Circuit Breakers 1PH/BR LC 70A MLO 2/4 Cir Al Bus N3R

Datasheet

1In Stock

$371.45

$321.87

$293.24

$260.09

View

Min.: 1
Mult.: 1

Circuit Breakers CH 30MA GFI 60A/2 POLE 120/240V 10K

CH260EPD
Eaton Electrical
1: $1,377.07
1In Stock
New Product

Mfr. Part No.
CH260EPD

Mouser Part No
504-CH260EPD

New Product

Eaton Electrical

Circuit Breakers CH 30MA GFI 60A/2 POLE 120/240V 10K

1In Stock

$1,377.07

Min.: 1
Mult.: 1

Circuit Breaker Accessories PD AUX&ALM SW 1NO/1NC PIGTAIL-30 INCHES

PDGXAC
Eaton Electrical
1: $213.14
3In Stock
4Expected 2026/10/16
New Product

Mfr. Part No.
PDGXAC

Mouser Part No
504-PDGXAC

New Product

Eaton Electrical

Circuit Breaker Accessories PD AUX&ALM SW 1NO/1NC PIGTAIL-30 INCHES

Datasheet

3In Stock

4Expected 2026/10/16

$213.14

$176.74

$164.69

$135.63

$125.94

Min.: 1
Mult.: 1

ESD Protection Diodes / TVS Diodes ESD PROTECTION DIODE DFN1006-2A

VESD16D1-HD1HG3-08
Vishay
1: $0.511
9,750In Stock
New Product

Mfr. Part No.
VESD16D1-HD1HG3-08

Mouser Part No
78-VESD16D1-HD1H3-08

New Product

Vishay

ESD Protection Diodes / TVS Diodes ESD PROTECTION DIODE DFN1006-2A

9,750In Stock

Cut Tape

$0.511

$0.361

$0.176

$0.147

Reel

$0.067

View

Min.: 1
Mult.: 1

: 10,000

Circuit Breakers Type BR Breaker 100A/2 Pole 120/240V 10K

BR2100
Eaton Electrical
1: $449.62
3In Stock
New Product

Mfr. Part No.
BR2100

Mouser Part No
504-BR2100

New Product

Eaton Electrical

Circuit Breakers Type BR Breaker 100A/2 Pole 120/240V 10K

Datasheet

3In Stock

$449.62

$372.46

$343.32

View

Min.: 1
Mult.: 1

Circuit Breakers Type BR Breaker 20A/2 Pole 120/240V 10K

BR220
Eaton Electrical
1: $162.08
3In Stock
New Product

Mfr. Part No.
BR220

Mouser Part No
504-BR220

New Product

Eaton Electrical

Circuit Breakers Type BR Breaker 20A/2 Pole 120/240V 10K

Datasheet

3In Stock

$162.08

$134.40

$125.23

$103.13

View

Min.: 1
Mult.: 1

Circuit Protection

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