The CPL-5045-20-NNN-79 from Cinch Connectivity Solutions is a Directional Coupler with Frequency 1 to 2 GHz, Coupling 20 dB, Coupling Variation ± 1 dB, Frequency Sensitivity ± 0.75 dB, Directivity 30 dB. Tags: Module with Connectors. More details for CPL-5045-20-NNN-79 can be seen below.