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: 359,631
Select Image Part # Mfr. Description Datasheet Availability Pricing (USD) Filter the results in the table by unit price based on your quantity. Qty. RoHS
TDK NTC Thermistors 0805 4.7K 3% B 3650 55/125/56 9,262In Stock
Min.: 1
Mult.: 1
: 4,000

TDK Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 2 ELECT / 3000v 440In Stock
3,000On Order
Min.: 1
Mult.: 1
: 100

TDK Gas Discharge Tubes - GDTs / Gas Plasma Arrestors T23-A250XF4 1,067In Stock
Min.: 1
Mult.: 1

Siemens Circuit Breakers BRKR 3VA52 3P 250A 35KA FTFM 1In Stock
Min.: 1
Mult.: 1
Square D Industrial Surge Protectors SPD T1 EMA 100KA 480V 3P3W 1In Stock
Min.: 1
Mult.: 1

Littelfuse ESD Protection Diodes / TVS Diodes AK6 - CA 270V 12In Stock
Min.: 1
Mult.: 1

APC by Schneider Electric Power Outlet Strips Rack PDU, Metered, 1U, 20A, 120V, (8) 5-20 1In Stock
Min.: 1
Mult.: 1
Vishay Semiconductors ESD Protection Diodes / TVS Diodes 1.5KW,18V 5%,UNIDIR,SMC TVS 1,770In Stock
Min.: 1
Mult.: 1
: 3,500

Vishay Semiconductors ESD Protection Diodes / TVS Diodes 1.5KW,91V 5%,UNIDIR,SMC TVS 3,734In Stock
Min.: 1
Mult.: 1
: 3,500

Vishay Semiconductors ESD Protection Diodes / TVS Diodes 600W,8.2V 5%,BIDIR,SMB TVS 3,030In Stock
Min.: 1
Mult.: 1
: 3,200

Vishay ESD Protection Diodes / TVS Diodes 8W,13V 5%,SMD PAR 322In Stock
750Expected 8/25/2026
Min.: 1
Mult.: 1
: 750
Vishay ESD Protection Diodes / TVS Diodes 8W,14V 5%,SMD PAR 720In Stock
Min.: 1
Mult.: 1
: 750
Vishay Semiconductors ESD Protection Diodes / TVS Diodes 600W,36V 5%,BIDIR,SMB TVS 1,148In Stock
Min.: 1
Mult.: 1
: 3,200

HUBER+SUHNER Connectorized Surge Protectors COAXIAL SURGE PROTECTOR DEVICE, GDT technology up to 2.5 GHz 5In Stock
Min.: 1
Mult.: 1


E-T-A Circuit Breakers The 3120-N...4 IP65 rated thermal circuit breaker/switch combination unites overcurrent protection and the function of an ON/OFF switch within a single component. The trip element is a thermal bimetal. Type 3120-N...4 is ideally suite 41In Stock
Min.: 1
Mult.: 1


E-T-A Circuit Breaker Accessories 265In Stock
Min.: 1
Mult.: 1

TE Connectivity / Measurement Specialties NTC Thermistors SUPER STABLE GLASS NTC THERMISTOR 24In Stock
Min.: 1
Mult.: 1
Littelfuse Fuse Clips 3AG/3AB PCB FUSE CLIP WITH ANGLED LEADS 4,997In Stock
Min.: 1
Mult.: 1

TDK PTC Thermistors 80C 12Vdc 4ohms Disc PTC Heating 2,345In Stock
Min.: 1
Mult.: 1


TDK Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 1.5kV 20% 10A A71-H15X 3,624In Stock
10,200On Order
Min.: 1
Mult.: 1

ABB Circuit Breaker Accessories KIT FCCUAL3X750KCMIL XT7/M F 3PCS 13In Stock
Min.: 1
Mult.: 1
Square D Circuit Breakers MOLDED CASE CIRCUIT BREAKER 600V 150A 1In Stock
Min.: 1
Mult.: 1
HUBER+SUHNER Connectorized Surge Protectors COAXIAL SURGE PROTECTOR DEVICE, Quarter-wave stub technology with integrated high-pass filter 14In Stock
Min.: 1
Mult.: 1
E-T-A Circuit Breakers Single pole switch/thermal circuit breaker (S-type TO CBE to EN 60934) with tease-free, trip-free, snap action mechanism. Designed for snap-in panel mounting utilising round hole or industry standard fuse-holder cut-out dimensions. Fe 93In Stock
Min.: 1
Mult.: 1

KYOCERA AVX Surface Mount Fuses .028A 7.5mOhm Green LGA Miniature 0402 10,254In Stock
60,000On Order
Min.: 1
Mult.: 1
: 5,000