The T1JB1 from Sonoma Scientific is a RF & Microwave Isolator with Frequency 1.7 to 2.2 GHz, Average Power 10 W, Average Power Forward 10 W, Insertion Loss 0.4 dB, Isolation 18 dB. Tags: Module with Connectors, Coaxial Isolator. More details for T1JB1 can be seen below.