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: 359.447
Select Image Part # Mfr. Description Datasheet Availability Pricing (IDR) Filter the results in the table by unit price based on your quantity. Qty. RoHS
Littelfuse NTC (Negative Temperature Coefficient) Thermistors RB103J9W-2 THERMISTOR 3.805In Stock
Min.: 1
Mult.: 1

Bourns Gas Discharge Tubes - GDTs / Gas Plasma Arrestors NextGen HV GDT 8 mm 2700 V 305In Stock
Min.: 1
Mult.: 1

Vishay Semiconductors ESD Protection Diodes / TVS Diodes 600W,6.8V 5%,BIDIR,SMB TVS 2.614In Stock
Min.: 1
Mult.: 1
: 3.200

Vishay Semiconductors ESD Protection Diodes / TVS Diodes 5W,30V 5%,SMD PAR 740In Stock
Min.: 1
Mult.: 1
: 750
Vishay ESD Protection Diodes / TVS Diodes SM8 - A 24V 481In Stock
Min.: 1
Mult.: 1
: 750

Vishay Semiconductors ESD Protection Diodes / TVS Diodes 300W,550V MIN,UNIDIR,SMA TVS 5.387In Stock
Min.: 1
Mult.: 1
: 1.800

Vishay Semiconductors ESD Protection Diodes / TVS Diodes 600W,110V 5%,BIDIR,SMB TVS 5.897In Stock
Min.: 1
Mult.: 1
: 750

Vishay Semiconductors ESD Protection Diodes / TVS Diodes 600W,12V 5%,UNIDIR,SMB TVS 3.195In Stock
Min.: 1
Mult.: 1
: 3.200

Vishay Semiconductors ESD Protection Diodes / TVS Diodes 600W,36V 5%,UNIDIR,SMB TVS 2.459In Stock
Min.: 1
Mult.: 1
: 3.200

Vishay Semiconductors ESD Protection Diodes / TVS Diodes 600W,60V 5%,UNIDIR,SMB TVS 2.993In Stock
Min.: 1
Mult.: 1
: 3.200


Vishay Semiconductors ESD Protection Diodes / TVS Diodes ESD 3.3V 27.160In Stock
Min.: 1
Mult.: 1
: 15.000

Murata Electronics NTC (Negative Temperature Coefficient) Thermistors 9.383In Stock
Min.: 1
Mult.: 1
: 20.000
Transtector Industrial Surge Protectors AC Surge Protector SPD MCP Panel 120/208 Vac 3-Phase Wye SASD, MOV 100 kA 1In Stock
Min.: 1
Mult.: 1


E-T-A Circuit Breakers The 3120-N 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 is ideally suited for overload prot 40In Stock
50Expected 07/09/2026
Min.: 1
Mult.: 1
Eaton Electrical Circuit Breaker Accessories FAZ-NA 80A 3-P BUS BAR FOR 2 bkr 26In Stock
30On Order
Min.: 1
Mult.: 1
Vishay / BC Components NTC (Negative Temperature Coefficient) Thermistors 10Kohm 3% L=400mm 2.150In Stock
Min.: 1
Mult.: 1

TDK NTC (Negative Temperature Coefficient) Thermistors K 164/470 K/J52 5% NTC Thermistor 5.847In Stock
Min.: 1
Mult.: 1
: 1.500

TDK NTC (Negative Temperature Coefficient) 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

HUBER+SUHNER Connectorised 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