The DBIS1802000400D from Qotana is a RF & Microwave Isolator with Frequency 2 to 4 GHz, Average Power Forward 50 W, Average Power Reverse 5 W, Insertion Loss 0.5 dB, Isolation 20 dB. Tags: Module with Connector, Coaxial Isolator. More details for DBIS1802000400D can be seen below.