The T1CJ1 from Sonoma Scientific is a RF & Microwave Isolator with Frequency 1.8 to 2 GHz, Average Power 5 W, Average Power Forward 5 W, Insertion Loss 0.6 dB, Isolation 40 dB. Tags: Module with Connectors, Coaxial Isolator. More details for T1CJ1 can be seen below.