The AL-RTPRTJB-9 from L-COM is a RF Surge Protector with Frequency DC to 3000 MHz, Insertion Loss 0.4 dB, Operating Voltage 90 to 1000 V(Breakdown Voltage), Surge Current 5 kA. Tags: Gas Discharge Tube. More details for AL-RTPRTJB-9 can be seen below.