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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: 359,239

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Part #

NTC Thermistors 10k, DO-35 glass NTC, B3977

TTDO-10KC3-8
CTS Electronic Components
1: NT$46.96
497In Stock
New Product

Mfr. Part #
TTDO-10KC3-8

Mouser Part #
774-TTDO10KC38

New Product

CTS Electronic Components

NTC Thermistors 10k, DO-35 glass NTC, B3977

Learn More

Datasheet

497In Stock

NT$46.96

NT$40.51

NT$38.36

NT$35.10

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Min.: 1
Mult.: 1

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

3298080.ZXM10
Littelfuse
1: NT$433.07
339In Stock
New Product

Mfr. Part #
3298080.ZXM10

Mouser Part #
576-3298080.ZXM10

New Product

Littelfuse

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

Datasheet

339In Stock

NT$433.07

NT$418.01

NT$370.33

NT$298.63

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Min.: 1
Mult.: 1

ESD Protection Diodes / TVS Diodes ESD PROTECTION DIODE SOT23

VGSOT24C-HG3-08
Vishay Semiconductors
1: NT$19.72
29,539In Stock
New Product

Mfr. Part #
VGSOT24C-HG3-08

Mouser Part #
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

NT$19.72

NT$10.25

NT$7.64

NT$5.77

Reel

NT$4.37

View

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

NTC Thermistors 30K, +/-0.2C: 0C-70C, B3942, uninsulated wire

TTS-30KC5-BG
CTS Electronic Components
1: NT$80.30
249In Stock
251Expected 11/12/2026
New Product

Mfr. Part #
TTS-30KC5-BG

Mouser Part #
774-TTS30KC5BG

New Product

CTS Electronic Components

NTC Thermistors 30K, +/-0.2C: 0C-70C, B3942, uninsulated wire

Learn More

Datasheet

249In Stock

251Expected 11/12/2026

NT$80.30

NT$69.19

NT$65.96

NT$59.87

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Min.: 1
Mult.: 1

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

SMAJE33AH
Eaton Electronics
1: NT$15.42
2,984In Stock
New Product

Mfr. Part #
SMAJE33AH

Mouser Part #
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

NT$15.42

NT$9.93

NT$5.88

NT$4.45

Reel

NT$3.01

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: NT$2,356.78
8In Stock
New Product

Mfr. Part #
CA1-P0-D6-812-321-MT

Mouser Part #
691-CA1-P0D6812321MT

New Product

Carling Technologies

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

Datasheet

8In Stock

NT$2,356.78

NT$1,955.26

NT$1,803.61

NT$1,492.79

View

Min.: 1
Mult.: 1

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

CPDE5V0U-HF
Comchip Technology
1: NT$12.91
5,193In Stock
New Product

Mfr. Part #
CPDE5V0U-HF

Mouser Part #
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

NT$12.91

NT$9.11

NT$5.77

NT$3.55

Reel

NT$1.76

View

Min.: 1
Mult.: 1

: 8,000

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

CPDE5V0-HF
Comchip Technology
1: NT$12.91
4,352In Stock
New Product

Mfr. Part #
CPDE5V0-HF

Mouser Part #
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

NT$12.91

NT$9.11

NT$5.77

NT$3.55

Reel

NT$1.76

View

Min.: 1
Mult.: 1

: 8,000

NTC Thermistors 3K, +/-0.2C: 0C-70C, B3977, uninsulated wire

TTS-3KC3-BG
CTS Electronic Components
1: NT$80.30
500In Stock
New Product

Mfr. Part #
TTS-3KC3-BG

Mouser Part #
774-TTS3KC3BG

New Product

CTS Electronic Components

NTC Thermistors 3K, +/-0.2C: 0C-70C, B3977, uninsulated wire

Learn More

Datasheet

500In Stock

NT$80.30

NT$69.19

NT$65.96

NT$59.87

View

Min.: 1
Mult.: 1

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

JT3250FA
Eaton Electrical
1: NT$64,641.85
1In Stock
New Product

Mfr. Part #
JT3250FA

Mouser Part #
504-JT3250FA

New Product

Eaton Electrical

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

1In Stock

NT$64,641.85

Min.: 1
Mult.: 1

NTC Thermistors 20K, +/-0.2C: 0C-70C, B4260, Teflon insulated wire

TTS-20KC6-BZ
CTS Electronic Components
1: NT$86.40
386In Stock
114Expected 11/12/2026
New Product

Mfr. Part #
TTS-20KC6-BZ

Mouser Part #
774-TTS20KC6BZ

New Product

CTS Electronic Components

NTC Thermistors 20K, +/-0.2C: 0C-70C, B4260, Teflon insulated wire

Learn More

Datasheet

386In Stock

114Expected 11/12/2026

NT$86.40

NT$74.57

NT$70.62

NT$64.17

View

Min.: 1
Mult.: 1

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

LT340032
Eaton Electrical
1: NT$139,269.00
1In Stock
New Product

Mfr. Part #
LT340032

Mouser Part #
504-LT340032

New Product

Eaton Electrical

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

1In Stock

NT$139,269.00

Min.: 1
Mult.: 1

NTC Thermistors 50K, +/-0.2C: 0C-70C, B4260, Teflon insulated wire

TTS-50KC6-BZ
CTS Electronic Components
1: NT$86.40
250In Stock
New Product

Mfr. Part #
TTS-50KC6-BZ

Mouser Part #
774-TTS50KC6BZ

New Product

CTS Electronic Components

NTC Thermistors 50K, +/-0.2C: 0C-70C, B4260, Teflon insulated wire

Learn More

Datasheet

250In Stock

NT$86.40

NT$74.57

NT$70.62

NT$64.17

View

Min.: 1
Mult.: 1

Circuit Breaker Accessories LATCH CHECK SWITCH

699B147G01
Eaton Electrical
1: NT$43,963.57
2In Stock
New Product

Mfr. Part #
699B147G01

Mouser Part #
504-699B147G01

New Product

Eaton Electrical

Circuit Breaker Accessories LATCH CHECK SWITCH

Datasheet

2In Stock

NT$43,963.57

Min.: 1
Mult.: 1

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

BRH230
Eaton Electrical
1: NT$16,094.14
3In Stock
New Product

Mfr. Part #
BRH230

Mouser Part #
504-BRH230

New Product

Eaton Electrical

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

Datasheet

3In Stock

NT$16,094.14

NT$11,850.58

NT$11,118.52

View

Min.: 1
Mult.: 1

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

PDG23F0020TFFJ
Eaton Electrical
1: NT$26,479.53
2In Stock
New Product

Mfr. Part #
PDG23F0020TFFJ

Mouser Part #
504-PDG23F0020TFFJ

New Product

Eaton Electrical

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

Datasheet

2In Stock

NT$26,479.53

NT$21,935.54

NT$20,216.17

Min.: 1
Mult.: 1

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

PDG23M0050MSAN
Eaton Electrical
1: NT$29,566.93
1In Stock
New Product

Mfr. Part #
PDG23M0050MSAN

Mouser Part #
504-PDG23M0050MSAN

New Product

Eaton Electrical

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

Datasheet

1In Stock

NT$29,566.93

NT$24,493.08

NT$22,572.95

Min.: 1
Mult.: 1

NTC Thermistors NTC Mini Ni 0.4 ld 10K 1% blk 0.4e/1e A

NTCLE213E3103FHB0A
Vishay / BC Components
1: NT$68.83
1,902In Stock
New Product

Mfr. Part #
NTCLE213E3103FHB0A

Mouser Part #
594-NTCLE213E313FHB

New Product

Vishay / BC Components

NTC Thermistors NTC Mini Ni 0.4 ld 10K 1% blk 0.4e/1e A

Datasheet

1,902In Stock

NT$68.83

NT$51.62

NT$41.23

NT$38.72

View

Min.: 1
Mult.: 1

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

PE73SP1061
Pasternack
1: NT$7,292.61
1In Stock
New Product

Mfr. Part #
PE73SP1061

Mouser Part #
28-PE73SP1061

New Product

Pasternack

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

Datasheet

1In Stock

NT$7,292.61

NT$6,513.95

NT$6,389.55

NT$6,366.60

View

Min.: 1
Mult.: 1

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

BR24L70RP
Eaton Electrical
1: NT$13,313.97
1In Stock
New Product

Mfr. Part #
BR24L70RP

Mouser Part #
504-BR24L70RP

New Product

Eaton Electrical

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

Datasheet

1In Stock

NT$13,313.97

NT$11,536.89

NT$10,510.86

View

Min.: 1
Mult.: 1

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

CH260EPD
Eaton Electrical
1: NT$49,359.00
1In Stock
New Product

Mfr. Part #
CH260EPD

Mouser Part #
504-CH260EPD

New Product

Eaton Electrical

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

1In Stock

NT$49,359.00

Min.: 1
Mult.: 1

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

PDGXAC
Eaton Electrical
1: NT$7,639.64
3In Stock
4Expected 9/28/2026
New Product

Mfr. Part #
PDGXAC

Mouser Part #
504-PDGXAC

New Product

Eaton Electrical

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

Datasheet

3In Stock

4Expected 9/28/2026

NT$7,639.64

NT$6,335.05

NT$5,903.06

NT$4,861.62

Quote

Min.: 1
Mult.: 1

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

VESD16D1-HD1HG3-08
Vishay
1: NT$18.28
9,750In Stock
New Product

Mfr. Part #
VESD16D1-HD1HG3-08

Mouser Part #
78-VESD16D1-HD1H3-08

New Product

Vishay

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

9,750In Stock

Cut Tape

NT$18.28

NT$12.94

NT$6.31

NT$5.27

Reel

NT$2.44

View

Min.: 1
Mult.: 1

: 10,000

Varistors G20, Hybrid design, 20 mm, Vrms=300V, GDT Voltage 1000(800-1200)V , 105C

B72220G3301K101
TDK
1: NT$143.76
Lead-Time 10 Weeks
New Product

Mfr. Part #
B72220G3301K101

Mouser Part #
871-B72220G3301K101

New Product

TDK

Varistors G20, Hybrid design, 20 mm, Vrms=300V, GDT Voltage 1000(800-1200)V , 105C

Learn More

Datasheet

Lead-Time 10 Weeks

NT$143.76

NT$92.49

NT$83.17

NT$72.06

View

Min.: 1
Mult.: 1

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

BR2100
Eaton Electrical
1: NT$16,115.65
3In Stock
New Product

Mfr. Part #
BR2100

Mouser Part #
504-BR2100

New Product

Eaton Electrical

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

Datasheet

3In Stock

NT$16,115.65

NT$11,121.75

NT$10,187.49

View

Min.: 1
Mult.: 1

Circuit Protection

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