The C1-A60D-5-XX from RD Microwaves is a Directional Coupler with Frequency 400 MHz to 13 GHz, Coupling 5.2 dB, Coupling Variation ±0.2 dB, Frequency Sensitivity ±1.5 dB, Directivity 9 to 15 dB. Tags: Module with Connectors. More details for C1-A60D-5-XX can be seen below.