The AM1780-2350D1140 from Anatech Electronics is a RF Duplexer with Frequency 1710 to 1850 MHz / 2200 to 2500 MHz, Band 1 1710 to 1850 MHz, Band 2 2200 to 2500 MHz, Power 5 W, Insertion Loss 1 dB. Tags: Surface Mount, Ceramic. More details for AM1780-2350D1140 can be seen below.