The HC3550U03-060 from Yantel Corporation is a 90 Degree Hybrid Coupler with Frequency 3.3 to 3.8 GHz, Average Power 2 W(Combiner), 4 W (Divider), Insertion Loss 0.4 to 0.55 dB, Isolation 16 to 20 dB, Coupling 3 dB. Tags: Surface Mount. More details for HC3550U03-060 can be seen below.