The D19-M1819T01 from QUEST Microwave is a RF & Microwave Isolator with Frequency 1.85 to 1.99 GHz, Average Power Forward 200 W, Average Power Reverse 10 W, Insertion Loss 0.3 dB Max., Isolation 23 dB Min.. Tags: Drop-In, Drop-In Isolator. More details for D19-M1819T01 can be seen below.