The AM3450B1004 from Anatech Electronics is a Band Pass Filter with Frequency 3.425 to 3.475 GHz, Bandwidth 50 MHz, Center Frequency 3450 MHz, Insertion Loss 2 dB, Rejection 20 dB. Tags: Surface Mount, Ceramic, Ceramic Filter, Monoblock Filter. More details for AM3450B1004 can be seen below.