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: 362,093
Select Image Part # Mfr. Description Datasheet Availability Pricing (SGD) Filter the results in the table by unit price based on your quantity. Qty. RoHS
Vishay Semiconductors SCRs NEW INPUT THYRISTOR - SUPER-248 973In Stock
Min.: 1
Mult.: 1

Bourns Thermal Cut-offs TCO, High Current, SMD, 90C, Self Hold AEC-Q200 15,363In Stock
Min.: 1
Mult.: 1
: 4,000

YAGEO ESD Protection Diodes / TVS Diodes BID Wkg5V 1CH SMD SOD323 Bkdn6V 4,046In Stock
15,000Expected 9/2/2027
Min.: 1
Mult.: 1
: 3,000

Vishay ESD Protection Diodes / TVS Diodes 600W,30V 5%, SlimSMA BIDIR TVS 2,310In Stock
Min.: 1
Mult.: 1
: 3,500

Vishay ESD Protection Diodes / TVS Diodes ESD PROTECTION DIODE SOT23 7,893In Stock
40,000On Order
Min.: 1
Mult.: 1
: 10,000

Bel Fuse Cartridge Fuses Barrier circuit fuse for use in intrinsic safety, 250mA 450In Stock
Min.: 1
Mult.: 1
: 500

Littelfuse Triacs 16 Amp Standard High Temperature Alternistor TRIAC-TO263 693In Stock
Min.: 1
Mult.: 1
: 500


Semtech ESD Protection Diodes / TVS Diodes UCLAMP, 1-LINE 3.6V TVS 16,313In Stock
Min.: 1
Mult.: 1
: 15,000

Bel Fuse Cartridge Fuses Barrier circuit fuse for use in intrinsic safety, 50mA 874In Stock
Min.: 1
Mult.: 1
: 500

Littelfuse Triacs 12 Amp High Temperature High dvdt TRIAC-TO263 1,100In Stock
Min.: 1
Mult.: 1

Bourns Gas Discharge Tubes - GDTs / Gas Plasma Arrestors Next-Generation GDT 5mm 470V, REEL 2,812In Stock
Min.: 1
Mult.: 1
: 1,500

Eaton Electrical Circuit Breakers EG 3P 80A adj therm 18kA CB w/end cap 1In Stock
Min.: 1
Mult.: 1
Littelfuse ESD Protection Diodes / TVS Diodes Zen TVS 600W 18V BI SOD-123FL TR13 4,990In Stock
Min.: 1
Mult.: 1
: 5,000

Littelfuse ESD Protection Diodes / TVS Diodes Zen TVS 600W 60V UNI SOD-123FL TR13 4,639In Stock
Min.: 1
Mult.: 1
: 5,000

TE Connectivity / P&B Circuit Breakers W52-A162A1-8=CKTBKR,THERM,ROCK,QC.250RED OPAQUE 250VAC 499In Stock
1,000Expected 11/1/2027
Min.: 1
Mult.: 1

Vishay Semiconductors ESD Protection Diodes / TVS Diodes 400W,11V 5%,UNIDIR,SMA TVS 7,430In Stock
Min.: 1
Mult.: 1
: 7,500
Vishay ESD Protection Diodes / TVS Diodes 600W,24V 5%, SlimSMA BIDIR TVS 3,150In Stock
Min.: 1
Mult.: 1
: 3,500

Littelfuse ESD Protection Diodes / TVS Diodes TVS 30KW 5%BI P600 39V TR13 1,172In Stock
Min.: 1
Mult.: 1
: 800



Littelfuse Industrial & Electrical Fuses 2A 600VAC 300VDC Fast Acting 1,197In Stock
Min.: 1
Mult.: 1



Phoenix Contact Circuit Breakers CBM E4 24DC/0.5-10A NO-R 135In Stock
Min.: 1
Mult.: 1

TDK Varistors 460VAC 10% 4032mm 50,104In Stock
Min.: 1
Mult.: 1

Amphenol Advanced Sensors NTC (Negative Temperature Coefficient) Thermistors Insulated chip & leads, 5KOhm +/-1% @ 25 C 14,231In Stock
Min.: 1
Mult.: 1

Littelfuse Industrial & Electrical Fuses 4A 1500VDC Solar 50kA Photovoltaic 686In Stock
Min.: 1
Mult.: 1

Semtech ESD Protection Diodes / TVS Diodes RailClamp 8-Line 5V 0.6pF 5A SLP2611N9T 31,476In Stock
Min.: 1
Mult.: 1
: 10,000

Semtech ESD Protection Diodes / TVS Diodes LOW CAP TVS & TELCOM INTERFACE 11,000In Stock
Min.: 1
Mult.: 1
: 3,000