The S5401 from Mercury Systems is a Diplexer with Frequency f1 1.435 to 1.54 GHz, Frequency f2 2.2 to 2.3 GHz, Attenuation 40 dB, Attenuation f1 40 dB, Attenuation f2 40 dB. Tags: Module with Connectors, Cavity. More details for S5401 can be seen below.