The VDI-177197 from VidaRF is a RF & Microwave Isolator with Frequency 17.7 to 19.7 GHz, Insertion Loss 0.5 dB, Isolation 20 dB, Operating Temperature -40 to 85 Degree C. Tags: Drop-In, Drop-In Isolator. More details for VDI-177197 can be seen below.