The DPX205850DT-4154B1 from TDK is a Diplexer with Frequency f1 800 MHz to 2.17 GHz, Frequency f2 2.4 to 5.85 GHz, Attenuation 10 to 36 dB, Attenuation f1 10 to 36 dB, Attenuation f2 12 to 24 dB. Tags: Surface Mount. More details for DPX205850DT-4154B1 can be seen below.