The CMX19C30 from RN2 Technologies is a Directional Coupler with Frequency 1.4 to 2.7 GHz, Coupling 30.0 ± 1.50 dB, Coupling Variation ± 1.50 dB, Directivity 17 dB, Average Power 20 W. Tags: Surface Mount. More details for CMX19C30 can be seen below.