Circuit Protection

Circuit Protection
Circuit Protection devices and components are available at Mouser from industry leading manufacturers. Mouser is an authorized distributor for many circuit protection manufacturers including Bourns, Eaton, TDK, Littelfuse, Semtech, Vishay, & more.
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Please view our selection of circuit protection devices below.
Results: 360.922
Select Image Part # Mfr. Description Datasheet Availability Pricing (ARS) Filter the results in the table by unit price based on your quantity. Qty. RoHS
PolyPhaser Connectorized 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 102In Stock
41Expected 10/16/2026
$ 376.012,14
$ 360.108,62
Min.: 1
Mult.: 1
PolyPhaser Connectorized 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 318In Stock
$ 194.687,64
$ 184.665,29
Min.: 1
Mult.: 1
PolyPhaser Connectorized Surge Protectors Type N F/F Bulkhead Coaxial RF Surge Protector, 10MHz - 1GHz, DC Block, 1.5kW, 120uJ, 20kA, Blocking Cap, Hole Mount 516In Stock
$ 191.694,85
$ 181.811,70
Min.: 1
Mult.: 1
PolyPhaser Connectorized Surge Protectors Type N F/F Bulkhead Coaxial RF Surge Protector, 698MHz - 2.7GHz, DC Block, 500W, IP67, .005uJ, 40kA, Filter 100In Stock
20Expected 10/9/2026
$ 296.546,73
$ 281.269,61
Min.: 1
Mult.: 1
PolyPhaser Connectorized Surge Protectors Type N F/F Coaxial RF Surge Protector, 100MHz - 512MHz, DC Block, 750W, IP67, .5uJ, 20kA, Filter, Bracket Down, Hole Mount 377In Stock
50Expected 10/15/2026
$ 278.572,62
$ 264.217,69
Min.: 1
Mult.: 1
TE Connectivity NTC Thermistors ESAPP-ESA PROBE-RTD PT1000, 2000mm 14In Stock
$ 2.513.974,37
$ 2.298.354,64
Min.: 1
Mult.: 1
PolyPhaser Connectorized 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 29In Stock
43On Order
$ 312.885,25
$ 299.643,92
Min.: 1
Mult.: 1
PolyPhaser Connectorized 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 37In Stock
25Expected 9/29/2026
$ 370.513,77
$ 354.853,85
Min.: 1
Mult.: 1
PolyPhaser Connectorized Surge Protectors Type N F/M Bulkhead Coaxial RF Surge Protector, 1.2GHz - 1.6GHz, 10W, IP67, 6 V Max., 175uJ, 15kA, Avalanche Diode 27In Stock
$ 230.635,86
$ 218.751,72
Min.: 1
Mult.: 1


PolyPhaser Surge Protection Accessories Ground Strap Adapter Kit for SX Series N Connectors 74In Stock
$ 107.044,27
$ 101.337,10
Min.: 1
Mult.: 1
PolyPhaser Connectorized Surge Protectors RF Surge Protector SPD, SMA F/F, DC - 6GHz, 150W, 60 V Max., 10kA, Gas Discharge Tube 110In Stock
$ 128.759,36
$ 121.903,80
Min.: 1
Mult.: 1
PolyPhaser Connectorized Surge Protectors RF Surge Protector SPD, SMA F/M, DC - 6GHz, 150W, 60 V Max., 10kA, Gas Discharge Tube 69In Stock
$ 139.616,91
$ 132.187,15
Min.: 1
Mult.: 1
PolyPhaser Connectorized Surge Protectors 7/16 F/F Bulkhead Coaxial RF Surge Protector, DC - 2.7GHz, 400W, IP67, 60 V Max., 420uJ, 20kA, Gas Discharge Tube 13In Stock
$ 218.647,32
$ 207.389,57
Min.: 1
Mult.: 1
PolyPhaser Connectorized 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
$ 311.528,06
$ 295.467,94
Min.: 1
Mult.: 1
PolyPhaser Connectorized Surge Protectors TNC F/F Coaxial RF Surge Protector, 800MHz - 2.5GHz, 300W, IP67, 15 V Max., 500uJ, 20kA, Hybrid, Bracket Down, Hole Mount 64In Stock
11Expected 12/25/2026
$ 356.802,64
$ 341.699,51
Min.: 1
Mult.: 1
PolyPhaser Connectorized Surge Protectors TNC F/F Bulkhead Coaxial RF Surge Protector, DC - 7GHz, DC Pass, 90W, IP67, 4mJ, 20kA, Gas Discharge Tube 47In Stock
51On Order
$ 133.422,54
$ 126.305,98
Min.: 1
Mult.: 1
PolyPhaser Connectorized Surge Protectors Type N F/F Bulkhead Coaxial RF Surge Protector, DC - 3.0GHz, DC Pass, 60V, 2000W, IP67, 20kA, Gas Tube, Bracket Included 83In Stock
$ 191.694,85
$ 181.811,70
Min.: 1
Mult.: 1
PolyPhaser Connectorized Surge Protectors Type N F/F Bulkhead Coaxial RF Surge Protector, 2GHz - 6GHz, DC Block, 10W, IP67, .5uJ, 10kA, Filter 35In Stock
$ 133.422,54
$ 126.305,98
Min.: 1
Mult.: 1
PolyPhaser Connectorized Surge Protectors Type N F/F Coaxial RF Surge Protector, 400MHz - 1.2GHz, 300W, IP67, 36 V Max., 1.5mJ, 20kA, Hybrid, Bracket Down, Hole Mount 44In Stock
$ 296.546,73
$ 281.269,61
Min.: 1
Mult.: 1
PolyPhaser Connectorized 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 10In Stock
$ 326.509,39
$ 309.683,67
Min.: 1
Mult.: 1
PolyPhaser Connectorized 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
$ 191.694,85
$ 181.811,70
Min.: 1
Mult.: 1
PolyPhaser Connectorized Surge Protectors UHF F/F Bulkhead Coaxial RF Surge Protector, 1.5MHz - 700MHz, DC Block, 3kW, 20mJ, 50kA, Blocking Cap, Hole Mount 14In Stock
$ 242.624,40
$ 230.131,26
Min.: 1
Mult.: 1
PolyPhaser Connectorized Surge Protectors Type N M/F Coaxial RF Surge Protector, 100MHz - 512MHz, DC Block, 750W, IP67, .5uJ, 20kA, Filter, Bracket Down, Hole Mount 31In Stock
$ 287.550,98
$ 272.743,65
Min.: 1
Mult.: 1
PolyPhaser Connectorized Surge Protectors Type N F/M Bulkhead Coaxial RF Surge Protector, DC - 1.0GHz, DC Pass, 60V, 100W, 4kA, Gas Tube 38In Stock
8Expected 10/9/2026
$ 164.742,39
$ 156.251,23
Min.: 1
Mult.: 1
PolyPhaser Connectorized Surge Protectors TNC F/F Coaxial RF Surge Protector, 800MHz - 2.5GHz, 300W, IP67, 6 V Max., 175uJ, 20kA, Hybrid, Bracket Down, Hole Mount 54In Stock
$ 314.520,85
$ 298.321,53
Min.: 1
Mult.: 1