The T4244/DE from Smiths Interconnect is a RF & Microwave Isolator with Frequency 4.2 to 4.4 GHz, Average Power Forward 20 W, Average Power Reverse 0.5 W, Peak Power Forward 0.05 kW, Insertion Loss 0.5 dB. Tags: Drop-In, Drop-In Isolator. More details for T4244/DE can be seen below.