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: 362.143
Select Image Part # Mfr. Description Datasheet Availability Pricing (EUR) Filter the results in the table by unit price based on your quantity. Qty. RoHS
PolyPhaser Connectorised Surge Protectors Type N F/M Bulkhead Coaxial RF Surge Protector, 10MHz - 1GHz, DC Block, 1.5kW, 3.5mJ, 20kA, Blocking Cap, Hole Mount, Use IS-B50LN-C2-ME 300In Stock
73On Order
Min.: 1
Mult.: 1

PolyPhaser Connectorised Surge Protectors Type N F/F Bulkhead Coaxial RF Surge Protector, 10MHz - 1GHz, DC Block, 1.5kW, 120uJ, 20kA, Blocking Cap, Hole Mount 367In Stock
72Expected 8/21/2026
Min.: 1
Mult.: 1

PolyPhaser Connectorised Surge Protectors Type N F/F Coaxial RF Surge Protector, 40MHz - 400MHz, 100W, IP67, 60 V Max., 2.5mJ, 20kA, Hybrid, Bracket Down, Hole Mount 8In Stock
55On Order
Min.: 1
Mult.: 1

PolyPhaser Connectorised Surge Protectors Type N F/F Coaxial RF Surge Protector, 800MHz - 2.5GHz, 300W, IP67, 36 V Max., 1.5mJ, 20kA, Hybrid, Bracket Down, Hole Mount 44In Stock
Min.: 1
Mult.: 1

PolyPhaser Connectorised Surge Protectors Type N F/M Bulkhead Coaxial RF Surge Protector, 1.2GHz - 1.6GHz, 10W, IP67, 6 V Max., 175uJ, 15kA, Avalanche Diode 20In Stock
8Expected 8/18/2026
Min.: 1
Mult.: 1



PolyPhaser Surge Protection Accessories Ground Strap Adapter Kit for SX Series N Connectors 51In Stock
Min.: 1
Mult.: 1

PolyPhaser Connectorised Surge Protectors Type N F/M Bulkhead Coaxial RF Surge Protector, DC - 6GHz, 1000W, IP67, 60 V Max., 2.5mJ, 20kA, Gas Discharge Tube 43In Stock
29On Order
Min.: 1
Mult.: 1

PolyPhaser Connectorised Surge Protectors RF Surge Protector SPD, SMA F/F, DC - 6GHz, 150W, 60 V Max., 10kA, Gas Discharge Tube 70In Stock
Min.: 1
Mult.: 1
PolyPhaser Connectorised Surge Protectors RF Surge Protector SPD, SMA F/M, DC - 6GHz, 150W, 60 V Max., 10kA, Gas Discharge Tube 61In Stock
Min.: 1
Mult.: 1
PolyPhaser Connectorised Surge Protectors 7/16 F/F Bulkhead Coaxial RF Surge Protector, 300MHz - 1.2GHz, DC Block, 2.5kW, IP67, .005uJ, 40kA, Filter, Low PIM 11In Stock
Min.: 1
Mult.: 1
PolyPhaser Connectorised Surge Protectors 7/16 F/F Coaxial RF Surge Protector, 100MHz - 512MHz, DC Block, 750W, IP67, .5uJ, 20kA, Filter, Low PIM -155 dBc, Bracket Down, Hole Mount 7In Stock
Min.: 1
Mult.: 1

PolyPhaser Connectorised Surge Protectors 7/16 F/F Coaxial RF Surge Protector, 100MHz - 512MHz, DC Block, 750W, IP67, .5uJ, 20kA, Filter, Bracket Down, Hole Mount 9In Stock
Min.: 1
Mult.: 1

TE Connectivity NTC (Negative Temperature Coefficient) Thermistors ESAPP-ESA PLATINUM NON-FLIGHT
6In Stock
Min.: 1
Mult.: 1

Schneider Electric Circuit Breakers NSX400F 36kA AC 4P4D 400A 2.3 1In Stock
Min.: 1
Mult.: 1
PolyPhaser Connectorised Surge Protectors Type N F/F Coaxial RF Surge Protector, 400MHz - 1.2GHz, 300W, IP67, 36 V Max., 25uJ, 20kA, Hybrid, Bracket Down, Hole Mount 9In Stock
Min.: 1
Mult.: 1

PolyPhaser Connectorised Surge Protectors Type N F/F Coaxial RF Surge Protector, 1.5MHz - 700MHz, DC Block, 2kW, 3.5mJ, 50kA, Blocking Cap, Bracket Up, Hole Mount 37In Stock
10Expected 8/21/2026
Min.: 1
Mult.: 1

PolyPhaser Connectorised Surge Protectors Type N F/F Bulkhead Coaxial RF Surge Protector, 698MHz - 2.7GHz, DC Block, 500W, IP67, .005uJ, 40kA, Filter 26In Stock
40Expected 8/11/2026
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, Low PIM, Hole Mount 55In Stock
Min.: 1
Mult.: 1

PolyPhaser Connectorised Surge Protectors Type N F/F Bulkhead Coaxial RF Surge Protector, 300MHz - 1.2GHz, DC Block, 2.5kW, IP67, .0075uJ, 40kA, Filter 43In Stock
Min.: 1
Mult.: 1

PolyPhaser Connectorised Surge Protectors Type N F/F Bulkhead Coaxial RF Surge Protector, DC - 3.0GHz, DC Pass, 60V, 2000W, IP67, 20kA, Gas Tube, Bracket Included 70In Stock
Min.: 1
Mult.: 1

PolyPhaser Connectorised Surge Protectors Type N F/F Coaxial RF Surge Protector, 800MHz - 2.5GHz, 300W, IP67, 6 V Max., 175uJ, 20kA, Hybrid, Bracket Down, Hole Mount 59In Stock
21Expected 8/21/2026
Min.: 1
Mult.: 1

PolyPhaser Connectorised Surge Protectors Type N F/F Coaxial RF Surge Protector, 800MHz - 2.5GHz, 300W, IP67, 6 V Max., 175uJ, 20kA, Hybrid, Bracket Up, Hole Mount 9In Stock
Min.: 1
Mult.: 1

PolyPhaser Connectorised Surge Protectors Type N F/M Coaxial RF Surge Protector, 1.5MHz - 700MHz, DC Block, 2kW, 10mJ, 50kA, Blocking Cap, Bracket Up, Hole Mount 30In Stock
Min.: 1
Mult.: 1

PolyPhaser Connectorised Surge Protectors Type N F/F Bulkhead Coaxial RF Surge Protector, 10MHz - 1GHz, DC Block, 100W, 120uJ, 20kA, Blocking Cap, Hole Mount 20In Stock
5Expected 8/18/2026
Min.: 1
Mult.: 1

PolyPhaser Connectorised Surge Protectors TNC F/F Coaxial RF Surge Protector, 800MHz - 2.5GHz, 300W, IP67, 15 V Max., 500uJ, 20kA, Hybrid, Bracket Down, Hole Mount 45In Stock
9Expected 8/18/2026
Min.: 1
Mult.: 1