PolyPhaser 40MHz to 400MHz Coaxial RF Surge Protectors help protect equipment from Electromagnetic Pulse (EMP) or power surges caused by lightning or other strong electrical changes. These surge protectors utilize a patented hybrid protection technology that integrates a Silicon Avalanche Suppression Diode (SASD), a Metal Oxide Varistor (MOV), and a Gas Tube (GT or GDT). The 40MHz to 400MHz surge protectors feature 20kA surge current, 50Ω impedance, 100W maximum power (RMS), N-type female connectors, and typical VSWR <1:1:1. These surge protectors are compliant with RoHS and CE certified. Typical applications include WiFi®, GPS, and land mobile radio.