The MMCCI350A from Mesa Microwave is a RF & Microwave Isolator with Frequency 300 MHz to 1.9 GHz, Bandwidth 20 MHz, 200 MHz, Average Power Forward 300 W, Average Power Reverse 30 W, Insertion Loss 0.3 to 0.5 dB. Tags: Coaxial Isolator. More details for MMCCI350A can be seen below.