The QSC10 from Qualwave is a RF & Microwave Circulator with Frequency 1805 to 5100 MHz, Bandwidth 300 MHz, Average Power Forward 20 to 30 W, Insertion Loss 0.40 to 0.50 dB, Isolation 17 to 20 dB. Tags: Surface Mount, Surface Mount Circulator. More details for QSC10 can be seen below.