Circuit Protection

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.
Results: 359,338
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 Mfr.
Description Datasheet Availability Pricing (TWD) Filter the results in the table by unit price based on your quantity.
Qty. RoHS
Littelfuse Automotive Fuses FUSE - ZCASE MEGA 32V M10 80A 480 PC
Datasheet
338In Stock
Min.: 1
Mult.: 1
Vishay Semiconductors ESD Protection Diodes / TVS Diodes ESD PROTECTION DIODE SOT23
Datasheet
29,539In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 3,000

Comchip Technology ESD Protection Diodes / TVS Diodes DIODE ESD UNI-DIRECTIONAL 5VWM 5A SOD-723
Datasheet
5,193In Stock
Min.: 1
Mult.: 1
: 8,000

CTS Electronic Components NTC Thermistors 30K, +/-0.2C: 0C-70C, B3942, uninsulated wire
Datasheet
249In Stock
251Expected 11/12/2026
Min.: 1
Mult.: 1

Eaton Electronics ESD Protection Diodes / TVS Diodes AUTO TVS DIODE, SMAJE FAMILY, 33Vdc, Uni
Datasheet
2,984In Stock
Min.: 1
Mult.: 1
: 5,000
Carling Technologies Circuit Breakers C Series 120A DC Hydraulic/Magnetic Circuit Breaker, UL489A, Black Handle
Datasheet
8In Stock
Min.: 1
Mult.: 1
CTS Electronic Components NTC Thermistors 1K, +/-0.2C: 0C-70C, B3977,Teflon insulated wire
Datasheet
500In Stock
Min.: 1
Mult.: 1

Comchip Technology ESD Protection Diodes / TVS Diodes DIODE ESD BI-DIRECTIONAL 5VWM 5A SOD-723
Datasheet
4,352In Stock
Min.: 1
Mult.: 1
: 8,000

CTS Electronic Components NTC Thermistors 3K, +/-0.2C: 0C-70C, B3977, uninsulated wire
Datasheet
500In Stock
Min.: 1
Mult.: 1

CTS Electronic Components NTC Thermistors 50K, +/-0.2C: 0C-70C, B4260, Teflon insulated wire
Datasheet
250In Stock
Min.: 1
Mult.: 1

Eaton Electrical 699B147G01
Eaton Electrical Circuit Breaker Accessories LATCH CHECK SWITCH
Datasheet
2In Stock
Min.: 1
Mult.: 1
Eaton Electrical JT3250FA
Eaton Electrical Circuit Breaker Accessories 250A 3P Thermal Mag Fixed/Adj Trip Unit 1In Stock
Min.: 1
Mult.: 1
CTS Electronic Components NTC Thermistors 20K, +/-0.2C: 0C-70C, B4260, Teflon insulated wire
Datasheet
386In Stock
114Expected 11/12/2026
Min.: 1
Mult.: 1

Eaton Electrical LT340032
Eaton Electrical Circuit Breaker Accessories LG 3 Pole 400A LSI Electronic Trip Unit 1In Stock
Min.: 1
Mult.: 1
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
Min.: 1
Mult.: 1

Eaton Electrical Circuit Breakers EHD 1P 25A W/O TERM W/KPR1A L&L
Datasheet
1In Stock
Min.: 1
Mult.: 1
Eaton Electrical Circuit Breakers EHD 1P 70A W/O TERMS. W/KPR1A L & L ENDS
Datasheet
1In Stock
Min.: 1
Mult.: 1
Eaton Electrical Circuit Breakers UL/CSA/IEC SLASH RTD TM MCCB 80A 3P
Datasheet
1In Stock
Min.: 1
Mult.: 1
Eaton Electrical Circuit Breakers PDG2,1P,60A,25KA/480V,FXFXTMTU
Datasheet
1In Stock
Min.: 1
Mult.: 1
Eaton Electrical Circuit Breakers PDG2,3P,200A,50KA/480V,FXFXTMTU
Datasheet
1In Stock
Min.: 1
Mult.: 1
Eaton Electrical Circuit Breakers PDG2,3P,175A,65KA/480V,FXFXTMTU
Datasheet
1In Stock
Min.: 1
Mult.: 1
Eaton Electrical Circuit Breakers BR 30A/2 Pole Com. Trip 120/240V 22K
Datasheet
3In Stock
Min.: 1
Mult.: 1
Eaton Electrical Circuit Breakers PDG2,3P,20A,25KA/480V,FXFXTMTU
Datasheet
2In Stock
Min.: 1
Mult.: 1
Eaton Electrical Circuit Breakers PDG2, 50A, MCP, STD CALIBRATION-HMCPS
Datasheet
1In Stock
Min.: 1
Mult.: 1
Vishay / BC Components NTC Thermistors NTC Mini Ni 0.4 ld 10K 1% blk 0.4e/1e A
Datasheet
1,902In Stock
Min.: 1
Mult.: 1