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: 361,793
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 PTC (Positive Temperature Coefficient) Thermistors PTC EL LDD 16D5 500R 1000 160 T E3 554In Stock
Min.: 1
Mult.: 1
: 500

Vishay Semiconductors ESD Protection Diodes / TVS Diodes 1.5KW,51V 5%,UNIDIR,SMC TVS 3,495In Stock
Min.: 1
Mult.: 1
: 3,500

Vishay Semiconductors ESD Protection Diodes / TVS Diodes 600W,30V 5%,UNIDIR,SMB TVS 6,555In Stock
Min.: 1
Mult.: 1
: 750

Vishay Semiconductors ESD Protection Diodes / TVS Diodes 600W,30V 5%,UNIDIR,SMB TVS 7,937In Stock
Min.: 1
Mult.: 1
: 750

Vishay Semiconductors ESD Protection Diodes / TVS Diodes 1.5KW,36V 5%,SMB PAR 4,400In Stock
Min.: 1
Mult.: 1
: 750


Kinetic Technologies ESD Protection Diodes / TVS Diodes Dual-channel Active choke for EMI suppression w/ Integrated ESD Protection 2,093In Stock
Min.: 1
Mult.: 1
: 1,000
Eaton Electrical Circuit Breakers FAZ-NA UL 489 MCB 3P 3A C CURVE 4In Stock
Min.: 1
Mult.: 1
Vishay Semiconductors ESD Protection Diodes / TVS Diodes 5000W 130V Unidirect 700In Stock
Min.: 1
Mult.: 1
: 800

Littelfuse ESD Protection Diodes / TVS Diodes 1-CH 0201 9V Uni-Di .20pF 20kV SESD 44,492In Stock
75,000On Order
Min.: 1
Mult.: 1
: 75,000

Bourns Varistors CHIP GUARD 30,856In Stock
Min.: 1
Mult.: 1
: 10,000

Bourns Surface Mount Fuses 1.6A Slow Blow 0402 SinglFuse 15,595In Stock
Min.: 1
Mult.: 1
: 10,000

WeEn Semiconductors Triacs RAIL-THYR AND TRIACS 3,412In Stock
Min.: 1
Mult.: 1

TDK NTC (Negative Temperature Coefficient) Thermistors 0603 10K 3% B 4000 55/125/56 23,532In Stock
Min.: 1
Mult.: 1
: 4,000

TDK NTC (Negative Temperature Coefficient) Thermistors 220k 4600 3% 3,816In Stock
2,000On Order
Min.: 1
Mult.: 1

TDK Gas Discharge Tubes - GDTs / Gas Plasma Arrestors T61-C600X 569In Stock
Min.: 1
Mult.: 1

Siemens Circuit Breakers BRKR 3VA52 4P 60A 35KA FTFM 1In Stock
Min.: 1
Mult.: 1
Schneider Electric Circuit Breakers MOLDED CASE CIRCUIT BRKR 600Y/347V 25A 2In Stock
Min.: 1
Mult.: 1
E-T-A Circuit Breakers Miniaturised single pole thermal circuit breaker with push-to-reset tease free, trip-free, snap action mechanism (R-type TO CBE to EN 60934), threadneck mounting. Approved to CBE standard EN 60934 (IEC 60934). For higher current rati 183In Stock
50On Order
Min.: 1
Mult.: 1

E-T-A Circuit Breakers Single pole thermal circuit breaker with press-to-reset, tease-free, trip-free, snap action mechanism. Type 2-5700 can be supplied as a push-push switch/circuit breaker (R-type TO CBE to EN 60934 in press-to-reset configuration; S-typ 78In Stock
Min.: 1
Mult.: 1


Weidmuller Industrial Surge Protectors III R 230V/6KV AC 22In Stock
Min.: 1
Mult.: 1

Amphenol Advanced Sensors NTC (Negative Temperature Coefficient) Thermistors Glass Encapsulated 10K Ohm +/- 10% 25C 3,391In Stock
Min.: 1
Mult.: 1

Bel Fuse Surface Mount Fuses 7A 350 VAC 72 VCD 14,572In Stock
5,000On Order
Min.: 1
Mult.: 1
: 5,000

Bel Fuse Fuses with Leads - Through Hole 250mA 350V 10,849In Stock
Min.: 1
Mult.: 1

Bel Fuse Surface Mount Fuses 0603 SMD Fuse. Slow Blow 8A 8,068In Stock
9,500On Order
Min.: 1
Mult.: 1
: 5,000

Bel Fuse Cartridge Fuses FUSE, CERAMIC TUBE 12A, 600VAC/600VDC 760In Stock
Min.: 1
Mult.: 1