The T-4530/CM from Telewave is a RF & Microwave Isolator with Frequency 406 to 512 MHz, Average Power Forward 150 W, Insertion Loss 0.4 dB, Isolation 30 to 35 dB, Operating Temperature -30 to 60 Degree C. Tags: Module with Connector, Coaxial Isolator. More details for T-4530/CM can be seen below.