The PE73SP1050 from Pasternack Enterprises Inc is a RF Surge Protector with Frequency 1.8 to 6 GHz, Input Power 10 W, Insertion Loss 0.1 to 0.2 dB, Operating Temperature -40 to 85 Degree C, Return Loss 20 dB. Tags: Filter. More details for PE73SP1050 can be seen below.