The VMDC-184190 from VidaRF is a RF & Microwave Circulator with Frequency 18.40 to 19 GHz, Average Power Forward 10 W, Average Power Reverse 10 W, Insertion Loss 0.6 dB, Isolation 20 dB. Tags: Drop-in Circulator. More details for VMDC-184190 can be seen below.