The DC0850U20-122 from Yantel Corporation is a Directional Coupler with Frequency 750 to 950 MHz, Coupling 19.1 to 20.9 dB, Directivity 10.7 to 10.9 dB, Average Power 5 W, Insertion Loss 0.06 to 0.11 dB. Tags: Surface Mount. More details for DC0850U20-122 can be seen below.