The DC2337J5010AHF from TTM Technologies is a Directional Coupler with Frequency 2.3 to 3.7 GHz, Coupling 9.8 to 11.6 dB, Frequency Sensitivity ±0.01 to 0.60 dB, Directivity 16 to 28 dB, Power 2 W. Tags: Surface Mount. More details for DC2337J5010AHF can be seen below.