The CHCU5040118K90 from Cernex Inc is a 90 Degree Hybrid Coupler with Frequency 500 MHz to 4 GHz, Average Power 20 W, Insertion Loss 1.2 dB, Isolation 18 dB, Coupling 3 dB. Tags: Module with Connectors. More details for CHCU5040118K90 can be seen below.