The SKYFR-001388 from Skyworks Solutions is a RF & Microwave Circulator with Frequency 2.11 to 2.17 GHz, Average Power Forward 20 W, Peak Power 100 W, Insertion Loss 0.18 to 0.25 dB, Isolation 20 to 23 dB. Tags: Surface Mount Circulator. More details for SKYFR-001388 can be seen below.