The T19150402 from POLOMARCONI.IT is a RF & Microwave Circulator with Frequency 66 to 88 MHz, Average Power Forward 100 W, Insertion Loss 0.5 dB, Isolation 30 dB, Operating Temperature -30 to 60 Degree C. Tags: Module with Connectors, Coaxial Circulator. More details for T19150402 can be seen below.