The JD10683 from Honeywell Aerospace is a Space Qualified Isolator with Frequency 16 to 18 GHz, Insertion Loss 0.4 to 0.5 dB, Isolation 20 to 23 dB, Return Loss 20 to 23 dB, Operating Temperature -10 to 65 Degree C. Tags: Module with Connector, Coaxial Isolator. More details for JD10683 can be seen below.