The T19430701 from POLOMARCONI.IT is a RF & Microwave Isolator with Frequency 420 to 470 MHz, Bandwidth ±750 kHz, Average Power Forward 100 W, Average Power Reverse 60 W, Insertion Loss 0.8 dB. Tags: Module with Connectors, Coaxial Isolator. More details for T19430701 can be seen below.