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: 369.846
Select Image Part # Mfr. Description Datasheet Availability Pricing (IDR) Filter the results in the table by unit price based on your quantity. Qty. RoHS
E-T-A Circuit Breakers 508,DM,24VDC,CL,20A,ATX 5In Stock
Min.: 1
Mult.: 1

TE Connectivity NTC (Negative Temperature Coefficient) Thermistors ESA PROBE-RTD PT1000 1000mm ENG MODEL 1In Stock
Min.: 1
Mult.: 1

Phoenix Contact Circuit Breakers PTCB TM1 4A F2 NO P 20In Stock
Min.: 1
Mult.: 1

Bourns Connectorised Surge Protectors AC SPD, thermal p, 20kA rated, 240V 15In Stock
Min.: 1
Mult.: 1

EPCOS / TDK Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 2 ELECT / 3000v 790In Stock
Min.: 1
Mult.: 1
Reel: 500

Pasternack Connectorised Surge Protectors Type N F/F In/Out Bulkhead Coax RF Surge Protector, DC - 7GHz and 3GHz - 4GHz, DC Pass, 90W, IP67, 20kA, Gas Discharge Tube, BiDirect 4In Stock
Min.: 1
Mult.: 1

PolyPhaser Connectorised Surge Protectors Type N M/F Bulkhead Coaxial RF Surge Protector, 700MHz to 1000MHz, Telemetry, DC Pass, 15V, IP67, 20kA, Hybrid, Flange Mount 8In Stock
Min.: 1
Mult.: 1

PolyPhaser Surge Protection Accessories L-Shaped Adapter 20In Stock
Min.: 1
Mult.: 1
PolyPhaser Connectorised Surge Protectors 7/16 M/F Coaxial RF Surge Protector, 400MHz - 2.5GHz, 600W, IP67, 24 V Max., 1mJ, 40kA, Hybrid, Bracket Down, Hole Mount 4In Stock
Min.: 1
Mult.: 1

PolyPhaser Connectorised Surge Protectors Type N M/F Coaxial RF Surge Protector, 650MHz - 2.7GHz, 400W, IP67, 30 V Max., 1.5mJ, 20kA, Hybrid, Bracket Down, Hole Mount 6In Stock
Min.: 1
Mult.: 1

PolyPhaser Connectorised Surge Protectors Type N M/F Coaxial RF Surge Protector, 800MHz - 2.5GHz, 300W, IP67, 6 V Max., 175uJ, 20kA, Hybrid, Bracket Up, Hole Mount 4In Stock
Min.: 1
Mult.: 1

PolyPhaser Connectorised Surge Protectors Type N M/F Coaxial RF Surge Protector, 800MHz - 2.5GHz, 300W, IP67, 36 V Max., 1.5mJ, 20kA, Hybrid, Bracket Down, Hole Mount 8In Stock
Min.: 1
Mult.: 1

PolyPhaser Connectorised Surge Protectors Type N F/F Bulkhead Coaxial RF Surge Protector, 1.2GHz - 1.6GHz, 10W, IP67, 6 V Max., 175uJ, 15kA, Avalanche Diode 8In Stock
Min.: 1
Mult.: 1

PolyPhaser Connectorised Surge Protectors UHF F/F Coaxial RF Surge Protector, 1.5MHz - 700MHz, DC Block, 2kW, 10mJ, 50kA, Blocking Cap, Bracket Up, Hole Mount 18In Stock
Min.: 1
Mult.: 1
PolyPhaser Connectorised Surge Protectors 75 Ohm Type F F/F Coaxial RF Surge Protector, 4MHz - 900MHz, DC Block, 100W, 50kA, Blocking Cap, Bracket Up, Hole Mount 4In Stock
Min.: 1
Mult.: 1
PolyPhaser Connectorised Surge Protectors Type N F/F Bulkhead Coaxial RF Surge Protector, 10MHz - 1GHz, DC Block, 1.5kW, 3.5mJ, 20kA, Blocking Cap, Hole Mount 4In Stock
12Expected 23/04/2026
Min.: 1
Mult.: 1
PolyPhaser Surge Protection Accessories IX Series Pole Mount Kit 8In Stock
Min.: 1
Mult.: 1
PolyPhaser Connectorised Surge Protectors Outdoor Twisted Pair Lightning Surge Protector, 4 Pair Gigabit Ethernet, PoE, UL 497B 3In Stock
6Expected 21/04/2026
Min.: 1
Mult.: 1
PolyPhaser Surge Protection Accessories Transition Clamp with Shims to Connect Copper to Galvanized Tower Legs for 1 1/4 to 2 1/4 inch 8In Stock
Min.: 1
Mult.: 1
PolyPhaser Connectorised Surge Protectors 4.3-10 F/F Bulkhead Coaxial RF Surge Protector, 698MHz - 2.7GHz, DC Block, 500W, IP67, .005uJ, 40kA, Filter, Low PIM 7In Stock
Min.: 1
Mult.: 1

PolyPhaser Connectorised Surge Protectors 7/16 F/M Bulkhead Coaxial RF Surge Protector, 698MHz - 2.7GHz, DC Block, 500W, IP67, .005uJ, 40kA, Filter, Low PIM 4In Stock
Min.: 1
Mult.: 1

PolyPhaser Connectorised Surge Protectors Type N F/M Bulkhead Coaxial RF Surge Protector, 698MHz - 2.7GHz, DC Block, 500W, IP67, .005uJ, 40kA, Filter 8In Stock
Min.: 1
Mult.: 1

PolyPhaser Connectorised Surge Protectors Type N M/F Coaxial RF Surge Protector, 0.5MHz - 1GHz, DC Block, 750W, IP67, 15mJ, 20kA, Filter, Bracket Down, Hole Mount 3In Stock
Min.: 1
Mult.: 1


E-T-A Circuit Breaker Accessories 508, DM, 40A Supply Module, IOLink, ATEX 2In Stock
Min.: 1
Mult.: 1



E-T-A Circuit Breaker Accessories 508, DM, 40A Supply Module, Modbus, ATEX 2In Stock
Min.: 1
Mult.: 1