The AM3425B1003 from Anatech Electronics is a Band Pass Filter with Frequency 3.4 to 3.45 GHz, Bandwidth 50 MHz, Center Frequency 3425 MHz, Insertion Loss 2 dB, Rejection 8 to 25 dB. Tags: Surface Mount, Ceramic, Ceramic Filter, Monoblock Filter. More details for AM3425B1003 can be seen below.