The IS-177197-AS from Spectrum Elektrotechnik GmbH is a RF & Microwave Isolator with Frequency 17.7 to 19.7 GHz, Average Power Forward 5 W, Average Power Reverse 1 W, Insertion Loss 0.5 dB, Isolation 20 dB. Tags: Coaxial Isolator. More details for IS-177197-AS can be seen below.