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. 
More...

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
Murata Electronics NTC Thermistors 9,300In Stock
Min.: 1
Mult.: 1


L-Com Circuit Breaker Accessories MPR SURGE SUPPRESSOR 5In Stock
Min.: 1
Mult.: 1
Vishay Semiconductors ESD Protection Diodes / TVS Diodes 400W,16V 5%,BIDIR,SMA TVS 7,180In Stock
Min.: 1
Mult.: 1
: 7,500

Vishay Semiconductors ESD Protection Diodes / TVS Diodes 600W,33V 5%,UNIDIR,SMB TVS 2,823In Stock
Min.: 1
Mult.: 1
: 3,200
Vishay Semiconductors ESD Protection Diodes / TVS Diodes 600W,16V 5%,UNIDIR,SMB TVS 7,339In Stock
Min.: 1
Mult.: 1
: 750

Vishay Semiconductors ESD Protection Diodes / TVS Diodes 600W,24V 5%,UNIDIR,SMB TVS 8,170In Stock
Min.: 1
Mult.: 1
: 750

AIRPAX Circuit Breakers 2In Stock
Min.: 1
Mult.: 1
Schneider Electric Circuit Breakers MotBreak GV4PE Therm/Mag 115A 50kA Elink 1In Stock
Min.: 1
Mult.: 1
Transtector Connectorized Surge Protectors Data Surge Protector SPD CPX Indoor CPX Rack Mount 14In Stock
Min.: 1
Mult.: 1
HUBER+SUHNER Connectorized Surge Protectors COAXIAL SURGE PROTECTOR DEVICE, Quarter-wave stub technology, NEMP tested 29In Stock
Min.: 1
Mult.: 1
HUBER+SUHNER Connectorized Surge Protectors COAXIAL SURGE PROTECTOR DEVICE, Slim Line GDT technology 10In Stock
Min.: 1
Mult.: 1
E-T-A Circuit Breakers Single pole thermal-magnetic circuit breakers with tease-free, trip-free, press-to-reset, snap action mechanism (R-type TM CBE to EN 60934; M-type with manual release (-H). Available with fast acting and standard magnetic tripping cha 69In Stock
Min.: 1
Mult.: 1

Citel Industrial Surge Protectors Din Rail AC Power Surge Suppressor, 70kA max, 230V Single Phase, 2P 16In Stock
Min.: 1
Mult.: 1

Vishay Semiconductors SCR Modules 1200 Volt 60 Amp 890 Amp IFSM 71In Stock
Min.: 1
Mult.: 1

TDK Gas Discharge Tubes - GDTs / Gas Plasma Arrestors A91H75XSE 948In Stock
1,800Expected 11/19/2026
Min.: 1
Mult.: 1

ABB Industrial Surge Protectors OVR SPD 3P+N 15KA 175V P 9In Stock
1Expected 9/10/2026
Min.: 1
Mult.: 1
ABB Circuit Breakers XT4H 250 TMF 250-2500 3P F F UL/CSA 2In Stock
Min.: 1
Mult.: 1
Siemens Circuit Breaker Accessories BREAKER MC FLANGE MAX-FLEX HDL 2In Stock
Min.: 1
Mult.: 1
Transtector Industrial Surge Protectors DC Surge Protector SPD I2R Indoor DIN-Rail 48 Vdc, Single-Mode SASD 30In Stock
Min.: 1
Mult.: 1
HUBER+SUHNER Connectorized Surge Protectors COAXIAL SURGE PROTECTOR DEVICE, GDT technology up to 1.0 GHz 15In Stock
120On Order
Min.: 1
Mult.: 1



E-T-A Circuit Breakers MoQ=10 Non-Preferred Part (Build to Order) - Alternative Stocked Part Number 2210-S211-P1M1-Z141-20A 93 15In Stock
Min.: 1
Mult.: 1

E-T-A Circuit Breakers Single, two and three pole magnetic circuit breakers with trip-free mechanism and push/pull on/off manual actuation. A choice of fast magnetic only or hydraulically delayed switching characteristics (Stype MO or HM CBE to EN 60934) en 23In Stock
Min.: 1
Mult.: 1
E-T-A Circuit Breakers Single, two and three pole rocker switch/thermal trip free circuit breakers (S-type TO CBE to EN 60934) of compact design for snap-in panel mounting. Available either with protection on one/both/all poles or, in the case of the double 120In Stock
Min.: 1
Mult.: 1

Eaton Electrical Circuit Breakers QCR Brk 2P 30A 240 Vac 10Kiac ring terms 3In Stock
Min.: 1
Mult.: 1
KYOCERA AVX Surface Mount Fuses Accu-Guard II Fuse F ast Speed 2,436In Stock
12,000Expected 11/9/2026
Min.: 1
Mult.: 1
: 3,000