The CHC01120217T180 from Cernex Inc is a 180 Degree Hybrid Coupler with Frequency 1 to 12.4 GHz, Average Power 20 W, Coupling 3 dB, Insertion Loss 2.1 dB, Isolation 17 dB. Tags: Module with Connector. More details for CHC01120217T180 can be seen below.