The AM3425-3525D1008 from Anatech Electronics is a RF Duplexer with Frequency 3.4 to 3.45 GHz / 3.5 to 3.55 GHz, Band 1 3400 to 3450 MHz, Band 2 3500 to 3550 MHz, Power 3 W, Insertion Loss 3 dB. Tags: Surface Mount, Ceramic. More details for AM3425-3525D1008 can be seen below.