The DPX2541A from CTS Electronic Components is a Diplexer with Frequency f1 1.85 to 1.995 GHz, Frequency f2 2.4 to 2.69 GHz, Power 3 W, Peak Power 20 W, Attenuation 40 to 55 dB. Tags: Surface Mount, Ceramic, Ceramic. More details for DPX2541A can be seen below.