The T2040/DD from Smiths Interconnect is a RF & Microwave Isolator with Frequency 2 to 4 GHz, Average Power Forward 40 W, Average Power Reverse 1 W, Peak Power Forward 0.1 kW, Insertion Loss 0.6 dB. Tags: Drop-In, Drop-In Isolator. More details for T2040/DD can be seen below.