The DPX165850DT-8117A1 from TDK is a Diplexer with Frequency f1 2.4 to 2.5 GHz, Frequency f2 4.9 to 5.85 GHz, Power 1 W, Attenuation 20 to 36.5 dB, Attenuation f1 20 to 23.5 dB. Tags: Surface Mount. More details for DPX165850DT-8117A1 can be seen below.