The T2838/DB from Smiths Interconnect is a RF & Microwave Isolator with Frequency 2.8 to 3.8 GHz, Average Power Forward 80 W, Average Power Reverse 1 W, Peak Power Forward 0.5 kW, Insertion Loss 0.5 dB. Tags: Module with Connector, Coaxial Isolator. More details for T2838/DB can be seen below.