The T19150401 from POLOMARCONI.IT is a RF & Microwave Circulator with Frequency 145 to 175 MHz, Average Power Forward 30 W, Insertion Loss 0.4 dB, Isolation 23 dB, Return Loss 23 dB. Tags: Module with Connectors, Coaxial Circulator. More details for T19150401 can be seen below.