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: 359,643
Select Image Part # Mfr. Description Datasheet Availability Pricing (USD) Filter the results in the table by unit price based on your quantity. Qty. RoHS
Vishay Semiconductors ESD Protection Diodes / TVS Diodes 300W,550V MIN,UNIDIR,SMA TVS 5,387In Stock
Min.: 1
Mult.: 1
: 1,800

Vishay ESD Protection Diodes / TVS Diodes ESD PROTECTION DIODE SOT323 4,427In Stock
Min.: 1
Mult.: 1
: 3,000

Vishay ESD Protection Diodes / TVS Diodes ESD PROTECTION DIODE DFN1006-2A 9,750In Stock
Min.: 1
Mult.: 1
: 10,000

Murata Electronics NTC Thermistors 9,383In Stock
Min.: 1
Mult.: 1
: 20,000
TDK Varistors G20, Hybrid design, 20 mm, Vrms=300V, GDT Voltage 1000(800-1200)V , 105C 696In Stock
Min.: 1
Mult.: 1

Vishay Semiconductors ESD Protection Diodes / TVS Diodes 600W,14V 5%,UNIDIR,SMB TVS 9,278In Stock
Min.: 1
Mult.: 1
: 3,200

Eaton Electrical Circuit Breakers Type CH Breaker 40A/3 Pole 240V 10K 3In Stock
Min.: 1
Mult.: 1
Eaton Electrical Circuit Breakers CH GFCI BREAKER, 30A, PIGTAIL, 10KAIC 1In Stock
Min.: 1
Mult.: 1
Eaton Electrical Circuit Breakers FAZ UL 1077 2P 2.5A D CURVE 1In Stock
Min.: 1
Mult.: 1
Eaton Electrical Circuit Breakers HFD-DC BREAKER - LINE & LOAD TERMINALS 1In Stock
Min.: 1
Mult.: 1
Eaton Electrical Circuit Breakers PDG2,3P,35A,25KA/480V,FXFXTMTU 2In Stock
Min.: 1
Mult.: 1
Eaton Electrical Circuit Breakers QBHW2015, 2P, 15A 22kAIC, 240V 1In Stock
Min.: 1
Mult.: 1
Vishay ESD Protection Diodes / TVS Diodes ESD PROTECTION DIODE SOT323 14,700In Stock
Min.: 1
Mult.: 1
: 3,000

Eaton Electrical Circuit Breakers Type BR Breaker 100A/2 Pole 120/240V 10K 3In Stock
Min.: 1
Mult.: 1
Eaton Electrical Circuit Breakers Type BR Breaker 20A/2 Pole 120/240V 10K 3In Stock
Min.: 1
Mult.: 1
Eaton Electrical Circuit Breakers PDG2,3P,20A,35KA/480V,FXFXTMTU 3In Stock
Min.: 1
Mult.: 1


Bourns Fuse Holder CFB1 FUSE BLOCK, NO FUSE 21In Stock
Min.: 1
Mult.: 1

Citel Connectorized Surge Protectors Indoor 10Gb/s (Cat6A) POE Surge Protective Device with Mounting Kit 7In Stock
Min.: 1
Mult.: 1

Vishay ESD Protection Diodes / TVS Diodes ESD PROTECTION DIODE SOT323 4,129In Stock
15,000Expected 8/20/2026
Min.: 1
Mult.: 1
: 3,000

Panjit ESD Protection Diodes / TVS Diodes TVS, unidirectional, VRWM 60V, 5KW, SMC 3,100In Stock
Min.: 1
Mult.: 1
: 800

Littelfuse ESD Protection Diodes / TVS Diodes ESD 20V BI 15,142In Stock
Min.: 1
Mult.: 1
: 15,000

Littelfuse ESD Protection Diodes / TVS Diodes ESD 24V BI 12,948In Stock
Min.: 1
Mult.: 1
: 15,000
Littelfuse Triacs 35 Amp Standard High Temperature Alternistor TRIAC-TO263 923In Stock
Min.: 1
Mult.: 1
: 500

Bourns Gas Discharge Tubes - GDTs / Gas Plasma Arrestors NextGen HV GDT 8 mm 1000 V 1,564In Stock
Min.: 1
Mult.: 1
: 1,000

Bourns Gas Discharge Tubes - GDTs / Gas Plasma Arrestors NextGen HV GDT 8 mm 1300 V 1,828In Stock
Min.: 1
Mult.: 1
: 1,000