The T4050/DB from Smiths Interconnect is a RF & Microwave Isolator with Frequency 4 to 5 GHz, Average Power Forward 120 W, Average Power Reverse 1 W, Peak Power Forward 0.5 kW, Insertion Loss 0.4 dB. Tags: Module with Connector, Coaxial Isolator. More details for T4050/DB can be seen below.