The TDC20-02G08S from Transcom is a Directional Coupler with Frequency 2 to 8 GHz, Coupling 20 dB, Coupling Variation ±1.0 dB, Amplitude Flatness ±1.0 dB, Directivity 20 dB. Tags: Module with Connectors. More details for TDC20-02G08S can be seen below.