The MAFR-000644-000001 from Skyworks Solutions is a RF & Microwave Circulator with Frequency 1805 to 1880 MHz, Average Power 80 W, Peak Power 500 W, Peak Power Forward 500 W, Insertion Loss 0.22 to 0.30 dB. Tags: Surface Mount, Surface Mount Circulator. More details for MAFR-000644-000001 can be seen below.