The FMSP1026 from Fairview Microwave is a RF Surge Protector with Frequency 1.5 to 700 MHz, Input Power 125 to 2000 W, Insertion Loss 0.1 dB, Operating Temperature -50 to 50 Degree C, Return Loss 22 dB. Tags: Gas Discharge Tube. More details for FMSP1026 can be seen below.