The CHC0204U620T180 from Cernex Inc is a 180 Degree Hybrid Coupler with Frequency 2 to 4 GHz, Average Power 50 W, Coupling 3 dB, Coupling Variation ±1 dB, Insertion Loss 0.6 dB. Tags: Module with Connector. More details for CHC0204U620T180 can be seen below.