The XC1900A-05S from TTM Technologies is a Directional Coupler with Frequency 1.7 to 2 GHz, Coupling 5 dB, Coupling Variation ±0.19 to 0.22 dB, Directivity 23 to 25 dB, Power 200 W. Tags: Surface Mount. More details for XC1900A-05S can be seen below.