The RFSL5878 from RF-CI is a RF & Microwave Isolator with Frequency 2.62 to 2.69 GHz, Average Power Forward 50 W, Average Power Reverse 20 W, Peak Power Forward 0.5 kW, Insertion Loss 0.25 to 0.35 dB. Tags: Surface Mount, Surface Mount Isolator. More details for RFSL5878 can be seen below.