The DC1722J5020AHF from TTM Technologies is a Directional Coupler with Frequency 1.7 to 2.2 GHz, Coupling 18.9 to 20 dB, Frequency Sensitivity ±0.01 to 0.17 dB, Directivity 14.9 to 27.5 dB, Power 2 W. Tags: Surface Mount. More details for DC1722J5020AHF can be seen below.