The CD10641 from Honeywell Aerospace is a Space Qualified Isolator with Frequency 4 to 4.8 GHz, Insertion Loss 0.3 to 0.4 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 CD10641 can be seen below.