The IS-NEMP-C2-MA from PolyPhaser is a RF Surge Protector with Frequency 125 MHz to 1 GHz, Input Power 200 W, Insertion Loss 0.1 dB, Operating Temperature -45 to 50 Degree C, Storage Temperature -45 to 85 Degree C. Tags: Gas Discharge Tube. More details for IS-NEMP-C2-MA can be seen below.