The IS-140 from MCLI is a RF & Microwave Isolator with Frequency 13.75 to 14.5 GHz, Average Power Forward 1 W, Insertion Loss 0.35 dB, Isolation 23 dB, Operating Temperature -25 to 80 Degree C. Tags: Module with Connector, Coaxial Isolator. More details for IS-140 can be seen below.