The IS-10-1 from MCLI is a RF & Microwave Isolator with Frequency 3.2 to 6.5 GHz, Insertion Loss 0.5 dB, Isolation 18 dB, Operating Temperature -30 to 70 Degree C. Tags: Module with Connector, Coaxial Isolator. More details for IS-10-1 can be seen below.