The T177212/DB from Smiths Interconnect is a RF & Microwave Isolator with Frequency 17.7 to 21.2 GHz, Average Power Forward 5 W, Average Power Reverse 1 W, Peak Power Forward 0.005 kW, Insertion Loss 0.5 dB. Tags: Microstrip, Microstrip Isolator. More details for T177212/DB can be seen below.