The IS-16-1 from MCLI is a RF & Microwave Isolator with Frequency 3.7 to 8.2 GHz, Insertion Loss 0.55 dB, Isolation 20 dB, Operating Temperature -30 to 70 Degree C. Tags: Module with Connector, Coaxial Isolator. More details for IS-16-1 can be seen below.