The TSD1N21A829MLS0G2T from TAIYO YUDEN (U.S.A.) Inc is a Diplexer with Frequency f1 698 to 960 MHz, Frequency f2 1710 to 2690 MHz, Attenuation 13 to 19 dB, Attenuation f1 13 dB, Attenuation f2 19 dB. Tags: Surface Mount, Ceramic. More details for TSD1N21A829MLS0G2T can be seen below.