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: 359,642
Select Image Part # Mfr. Description Datasheet Availability Pricing (SGD) Filter the results in the table by unit price based on your quantity. Qty. RoHS
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



Weidmuller Circuit Breakers CB4201-10, 2.5A/TS35 14In Stock
Min.: 1
Mult.: 1
Littelfuse Triacs 12 Amp High Temperature High dvdt TRIAC-TO263 1,100In Stock
Min.: 1
Mult.: 1

Semtech ESD Protection Diodes / TVS Diodes 1-Line 200V 1.9A TVS DO-214AA(SMB) 2,978In Stock
Min.: 1
Mult.: 1
: 3,000

Eaton Electrical GBKP1020
Eaton Electrical Circuit Breaker Accessories 10 TERM GROUND BAR+2/0 LUG-CH/BR PON 5In Stock
Min.: 1
Mult.: 1
Bourns Gas Discharge Tubes - GDTs / Gas Plasma Arrestors NextGen HV GDT 8 mm 1200 V 1,369In Stock
Min.: 1
Mult.: 1
: 1,000

Bourns Gas Discharge Tubes - GDTs / Gas Plasma Arrestors NextGen HV GDT 8 mm 1500 V 878In Stock
Min.: 1
Mult.: 1
: 1,000



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) integral type. Approved to CBE standard EN 60934 (IEC 60934). For higher current ratings see 297In Stock
Min.: 1
Mult.: 1



E-T-A Circuit Breakers MoQ=10 Non-Preferred Part (Build to Order) - Alternative Stocked Part Number 2210-S211-P1M1-Z141-8A 92 10In Stock
Min.: 1
Mult.: 1

E-T-A Circuit Breakers Single pole press-to-reset thermal circuit breaker with extremely fast overload switching performance (R-type TO CBE to EN 60934). Single hole threadneck mounting. Type 1410-G1 features changeover contacts suitable for providing statu 217In Stock
Min.: 1
Mult.: 1

E-T-A Circuit Breakers Single pole press-to-reset thermal circuit breaker with extremely fast overload switching performance (R-type TO CBE to EN 60934). Miniaturised construction minimises PCB real estate required. Largely temperature-insensitive.x -E. Ret 162In 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 208In Stock
Min.: 1
Mult.: 1

Amphenol Advanced Sensors NTC (Negative Temperature Coefficient) Thermistors Glass Encapsulated 30K Ohm +/- 5% 25C 2,060In Stock
Min.: 1
Mult.: 1

Bel Fuse Surface Mount Fuses 4 A, 125 VAC / VDC 14,743In Stock
Min.: 1
Mult.: 1
: 5,000

Bel Fuse Surface Mount Fuses Surface mount "Chip fuse" Silver Plated 0402 case size Fast Blow 250mA Tape and Reel (10000 pcs.) 8,600In Stock
Min.: 1
Mult.: 1
: 10,000

Bel Fuse Surface Mount Fuses Surface mount "Chip fuse" Silver Plated 0402 case size Fast Blow 2A Tape and Reel (10000 pcs.) 5,854In Stock
Min.: 1
Mult.: 1
: 10,000

Bel Fuse Fuses with Leads - Through Hole FUSE, CERAMIC TUBE 2A 1000VAC/VDC 924In Stock
Min.: 1
Mult.: 1

Bel Fuse Cartridge Fuses FUSE, CERAMIC TUBE 0.44A 1000VAC1000VDC 561In Stock
Min.: 1
Mult.: 1

Bel Fuse Cartridge Fuses 7,214In Stock
Min.: 1
Mult.: 1

Bel Fuse Surface Mount Fuses 1206 SMT Fuse Fast Acting, 3.5A 11,896In Stock
Min.: 1
Mult.: 1
: 5,000