The RFSL2878D from RF-CI is a RF & Microwave Isolator with Frequency 5 to 6.5 GHz, Average Power Forward 35 W, Average Power Reverse 10 W, Peak Power Forward 0.5 kW, Insertion Loss 0.45 to 0.5 dB. Tags: Drop-In, Drop-In Isolator. More details for RFSL2878D can be seen below.