The LTB42A2W from Fiplex Communications is a RF & Microwave Isolator with Frequency 450 to 512 MHz, Average Power Forward 100 W, Average Power Reverse 20 W, Insertion Loss 0.5 dB, Isolation 40 dB. Tags: Module with Connectors, Coaxial Isolator. More details for LTB42A2W can be seen below.