The DBIS1702000400A from Qotana is a RF & Microwave Isolator with Frequency 2 to 4 GHz, Average Power Forward 10 W, Insertion Loss 0.5 to 0.6 dB, Isolation 17 to 18 dB, Operating Temperature -30 to 70 Degree C. Tags: Module with Connector, Coaxial Isolator. More details for DBIS1702000400A can be seen below.