The X3C19F1-20S from TTM Technologies is a Directional Coupler with Frequency 1.4 to 2.7 GHz, Coupling 19.5 to 20 dB, Coupling Variation ±0.5 dB, Directivity 20 to 25 dB, Power 25 W. Tags: Surface Mount. More details for X3C19F1-20S can be seen below.