The EI1520F1675DA from ECHO Microwave is a RF & Microwave Isolator with Frequency 1.52 to 1.67 GHz, Average Power Forward 50 W, Insertion Loss 0.35 dB, Isolation 20 dB, Operating Temperature -20 to 85 Degree C. Tags: Drop-In, Drop-In Isolator. More details for EI1520F1675DA can be seen below.