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: 359’614
Select Image Part # Mfr. Description Datasheet Availability Pricing (CHF) Filter the results in the table by unit price based on your quantity. Qty. RoHS
TDK Varistors 60VAC 10% 20mm StandarD 5’036In Stock
Min.: 1
Mult.: 1

TDK Varistors 95VAC 10% 20mm StandarD 6’580In Stock
4’500Expected 10/8/2026
Min.: 1
Mult.: 1

TDK Varistors 550VAC 10% 40mm High E 250In Stock
Min.: 1
Mult.: 1

TDK Varistors 10mm, 680Vac, 10%, Compact Series 8’131In Stock
Min.: 1
Mult.: 1

TDK Varistors 14mm, 350Vac, 10%, AdvanceD Compact Series 7’525In Stock
Min.: 1
Mult.: 1

TDK Varistors 0603 4.0V 30A 48’316In Stock
Min.: 1
Mult.: 1
: 4’000

TDK Varistors 20Vrms 80A 28’129In Stock
Min.: 1
Mult.: 1
: 3’000

TDK Varistors 1210 58VDC 2000pF 1000A 5’824In Stock
Min.: 1
Mult.: 1
: 1’500


TDK Gas Discharge Tubes - GDTs / Gas Plasma Arrestors EM90X 1’850In Stock
Min.: 1
Mult.: 1
: 100

TDK Gas Discharge Tubes - GDTs / Gas Plasma Arrestors A71-H25X 1’633In Stock
Min.: 1
Mult.: 1
: 500

TDK Gas Discharge Tubes - GDTs / Gas Plasma Arrestors T23-A230XF4 966In Stock
Min.: 1
Mult.: 1

AIRPAX Circuit Breakers Cir Brkr Hyd Mag 25In Stock
Min.: 1
Mult.: 1
AIRPAX Circuit Breakers CIRCUIT BREAKER 34In Stock
Min.: 1
Mult.: 1


Semtech ESD Protection Diodes / TVS Diodes 1-Line Femto Farad RailClamp w/ EOS 12’989In Stock
Min.: 1
Mult.: 1
: 15’000

Schneider Electric Circuit Breakers MAN-START 600VAC 40AMP IEC 6In 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) 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 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 207In 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 14’737In 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.) 5’849In 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