The MPX0103A from CTS Electronic Components is a Diplexer with Frequency f1 1.71 to 2.18 GHz, Frequency f2 1.92 to 2.17 GHz, Power 10 W, Peak Power 100 W, Attenuation 30 to 35 dB. Tags: Surface Mount, Ceramic, Ceramic. More details for MPX0103A can be seen below.