The PE73SP1041 from Pasternack Enterprises Inc is a RF Surge Protector with Frequency DC to 7 GHz, Input Power 9 to 90 W, Insertion Loss 0.25 dB, Operating Temperature -55 to 85 Degree C, Return Loss 15 dB. Tags: Gas Discharge Tube. More details for PE73SP1041 can be seen below.