The DPX201990DT-4151A2 from TDK is a Diplexer with Frequency f1 800 to 945 GHz, Frequency f2 1.572 to 1.99 GHz, Power 3 W, Attenuation 23 to 41.2 dB, Attenuation f1 25 to 41.2 dB. Tags: Surface Mount. More details for DPX201990DT-4151A2 can be seen below.