The DPX165850DT-8017A1 from TDK is a Diplexer with Frequency f1 2.4 to 2.5 GHz, Frequency f2 4.9 to 5.85 GHz, Attenuation 20 to 35.2 dB, Attenuation f1 20 to 23.1 dB, Attenuation f2 20 to 35.2 dB. Tags: Surface Mount. More details for DPX165850DT-8017A1 can be seen below.