The DB0805A1900ASTR from KYOCERA AVX is a 90 Degree Hybrid Coupler with Frequency 1.85 to 1.95 GHz, Average Power 10 W, Insertion Loss 0.30 dB, Coupling 3 dB, Phase Balance 3 Degree. Tags: Surface Mount. More details for DB0805A1900ASTR can be seen below.