The SKYFR-001227 from Skyworks Solutions is a RF & Microwave Circulator with Frequency 1.805 to 2.17 GHz, Average Power Forward 20 W, Peak Power 120 W, Insertion Loss 0.6 to 0.8 dB, Isolation 15 to 20 dB. Tags: Surface Mount Circulator. More details for SKYFR-001227 can be seen below.