The TDC06-04G12S from Transcom is a Directional Coupler with Frequency 4 to 12 GHz, Coupling 6 dB, Coupling Variation ±1.0 dB, Amplitude Flatness ±1.0 dB, Directivity 15 dB. Tags: Module with Connectors. More details for TDC06-04G12S can be seen below.