The XC1900A-10S from TTM Technologies is a Directional Coupler with Frequency 1.7 to 2 GHz, Coupling 10 to 10.1 dB, Coupling Variation ±0.40 to 0.50 dB, Directivity 23 to 25 dB, Power 175 W. Tags: Surface Mount. More details for XC1900A-10S can be seen below.