The HC1850U03-030 from Yantel Corporation is a 90 Degree Hybrid Coupler with Frequency 1.75 to 1.95 GHz, Average Power 2 W(Combiner), 4 W (Divider), Insertion Loss 0.25 to 0.3 dB, Isolation 35 to 39 dB, Coupling 3 dB. Tags: Surface Mount. More details for HC1850U03-030 can be seen below.