.hide-partial { max-height: none; } .show-more { display: none; }

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.
More...

Please view our selection of circuit protection devices below.

.catnav-wrapper { height: auto; overflow: visible; } .catalog-nav-tabs ul { white-space: normal; }

Types of Circuit Protection

List Images

Results: 359,338

Search within results

In Stock

Normally Stocked

Active

New Products

RoHS Compliant

Filter by

.search-refine-wrapper { display: inline-block; min-width: 100%; } .scroll-body { overflow-x: visible; } .search-table-wrapper { overflow: visible; } .hide-partial { max-height: none; } .show-more { display: none; }

Part #

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

3298080.ZXM10
Littelfuse
1: ₩18,844.8
338In 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

338In Stock

₩18,844.8

₩18,189.6

₩16,114.8

₩12,994.8

View

Min.: 1
Mult.: 1

ESD Protection Diodes / TVS Diodes ESD PROTECTION DIODE SOT23

VGSOT24C-HG3-08
Vishay Semiconductors
1: ₩858
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

₩858

₩446.2

₩332.3

₩251.2

Reel

₩190.3

View

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

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

CPDE5V0U-HF
Comchip Technology
1: ₩561.6
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

₩561.6

₩396.2

₩251.2

₩154.4

Reel

₩76.4

View

Min.: 1
Mult.: 1

: 8,000

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

TTS-30KC5-BG
CTS Electronic Components
1: ₩3,494.4
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

₩3,494.4

₩3,010.8

₩2,870.4

₩2,605.2

View

Min.: 1
Mult.: 1

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

SMAJE33AH
Eaton Electronics
1: ₩670.8
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

₩670.8

₩432.1

₩255.8

₩193.4

Reel

₩131

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: ₩102,554.4
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

₩102,554.4

₩85,082.4

₩78,483.6

₩64,958.4

View

Min.: 1
Mult.: 1

NTC Thermistors 1K, +/-0.2C: 0C-70C, B3977,Teflon insulated wire

TTS-1KC3-BZ
CTS Electronic Components
1: ₩3,759.6
500In Stock
New Product

Mfr. Part #
TTS-1KC3-BZ

Mouser Part #
774-TTS1KC3BZ

New Product

CTS Electronic Components

NTC Thermistors 1K, +/-0.2C: 0C-70C, B3977,Teflon insulated wire

Learn More

Datasheet

500In Stock

₩3,759.6

₩3,244.8

₩3,073.2

₩2,792.4

View

Min.: 1
Mult.: 1

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

CPDE5V0-HF
Comchip Technology
1: ₩561.6
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

₩561.6

₩396.2

₩251.2

₩154.4

Reel

₩76.4

View

Min.: 1
Mult.: 1

: 8,000

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

TTS-3KC3-BG
CTS Electronic Components
1: ₩3,494.4
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

₩3,494.4

₩3,010.8

₩2,870.4

₩2,605.2

View

Min.: 1
Mult.: 1

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

TTS-50KC6-BZ
CTS Electronic Components
1: ₩3,759.6
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

₩3,759.6

₩3,244.8

₩3,073.2

₩2,792.4

View

Min.: 1
Mult.: 1

Circuit Breaker Accessories LATCH CHECK SWITCH

699B147G01
Eaton Electrical
1: ₩1,913,059.2
2In Stock
New Product

Mfr. Part #
699B147G01

Mouser Part #
504-699B147G01

New Product

Eaton Electrical

Circuit Breaker Accessories LATCH CHECK SWITCH

Datasheet

2In Stock

₩1,913,059.2

Min.: 1
Mult.: 1

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

JT3250FA
Eaton Electrical
1: ₩2,812,867.2
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

₩2,812,867.2

Min.: 1
Mult.: 1

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

TTS-20KC6-BZ
CTS Electronic Components
1: ₩3,759.6
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

₩3,759.6

₩3,244.8

₩3,073.2

₩2,792.4

View

Min.: 1
Mult.: 1

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

LT340032
Eaton Electrical
1: ₩6,060,241.2
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

₩6,060,241.2

Min.: 1
Mult.: 1

Connectorized Surge Protectors Type N F/F In/Out Bulkhead Coax RF Surge Protector, DC - 7GHz and 3GHz - 4GHz, DC Pass, 90W, IP67, 20kA, Gas Discharge Tube, BiDirect

PE73SP1038
Pasternack
1: ₩213,283.2
6In Stock
New Product

Mfr. Part #
PE73SP1038

Mouser Part #
28-PE73SP1038

New Product

Pasternack

Connectorized Surge Protectors Type N F/F In/Out Bulkhead Coax RF Surge Protector, DC - 7GHz and 3GHz - 4GHz, DC Pass, 90W, IP67, 20kA, Gas Discharge Tube, BiDirect

Datasheet

6In Stock

₩213,283.2

₩183,565.2

₩177,231.6

₩173,971.2

View

Min.: 1
Mult.: 1

Circuit Breakers EHD 1P 25A W/O TERM W/KPR1A L&L

EHD1025WD01
Eaton Electrical
1: ₩621,098.4
1In Stock
New Product

Mfr. Part #
EHD1025WD01

Mouser Part #
504-EHD1025WD01

New Product

Eaton Electrical

Circuit Breakers EHD 1P 25A W/O TERM W/KPR1A L&L

Datasheet

1In Stock

₩621,098.4

₩418,906.8

₩397,472.4

₩364,197.6

Min.: 1
Mult.: 1

Circuit Breakers EHD 1P 70A W/O TERMS. W/KPR1A L & L ENDS

EHD1070WD01
Eaton Electrical
1: ₩1,235,254.8
1In Stock
New Product

Mfr. Part #
EHD1070WD01

Mouser Part #
504-EHD1070WD01

New Product

Eaton Electrical

Circuit Breakers EHD 1P 70A W/O TERMS. W/KPR1A L & L ENDS

Datasheet

1In Stock

₩1,235,254.8

₩967,574.4

₩923,208

View

Min.: 1
Mult.: 1

Circuit Breakers UL/CSA/IEC SLASH RTD TM MCCB 80A 3P

NZMB1-A80-NA
Eaton Electrical
1: ₩2,054,769.6
1In Stock
New Product

Mfr. Part #
NZMB1-A80-NA

Mouser Part #
504-NZMB1-A80-NA

New Product

Eaton Electrical

Circuit Breakers UL/CSA/IEC SLASH RTD TM MCCB 80A 3P

Datasheet

1In Stock

₩2,054,769.6

Min.: 1
Mult.: 1

Circuit Breakers PDG2,1P,60A,25KA/480V,FXFXTMTU

PDG21F0060TFFJ
Eaton Electrical
1: ₩620,427.6
1In Stock
New Product

Mfr. Part #
PDG21F0060TFFJ

Mouser Part #
504-PDG21F0060TFFJ

New Product

Eaton Electrical

Circuit Breakers PDG2,1P,60A,25KA/480V,FXFXTMTU

Datasheet

1In Stock

₩620,427.6

₩513,957.6

₩473,772

View

Min.: 1
Mult.: 1

Circuit Breakers PDG2,3P,200A,50KA/480V,FXFXTMTU

PDG23K0200TFFJ
Eaton Electrical
1: ₩2,101,850.4
1In Stock
New Product

Mfr. Part #
PDG23K0200TFFJ

Mouser Part #
504-PDG23K0200TFFJ

New Product

Eaton Electrical

Circuit Breakers PDG2,3P,200A,50KA/480V,FXFXTMTU

Datasheet

1In Stock

₩2,101,850.4

Min.: 1
Mult.: 1

Circuit Breakers PDG2,3P,175A,65KA/480V,FXFXTMTU

PDG23M0175TFFL
Eaton Electrical
1: ₩2,078,668.8
1In Stock
New Product

Mfr. Part #
PDG23M0175TFFL

Mouser Part #
504-PDG23M0175TFFL

New Product

Eaton Electrical

Circuit Breakers PDG2,3P,175A,65KA/480V,FXFXTMTU

Datasheet

1In Stock

₩2,078,668.8

Min.: 1
Mult.: 1

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

BRH230
Eaton Electrical
1: ₩700,330.8
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

₩700,330.8

₩515,673.6

₩483,818.4

View

Min.: 1
Mult.: 1

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

PDG23F0020TFFJ
Eaton Electrical
1: ₩1,152,247.2
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

₩1,152,247.2

₩954,517.2

₩879,699.6

Min.: 1
Mult.: 1

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

PDG23M0050MSAN
Eaton Electrical
1: ₩1,286,594.4
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

₩1,286,594.4

₩1,065,807.6

₩982,254

Min.: 1
Mult.: 1

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

NTCLE213E3103FHB0A
Vishay / BC Components
1: ₩2,995.2
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

₩2,995.2

₩2,246.4

₩1,794

₩1,684.8

View

Min.: 1
Mult.: 1

Circuit Protection

Types of Circuit Protection

Customer Service Office

Company

Resources

Support