The AM3400B1200 from Anatech Electronics is a Band Pass Filter with Frequency 3.3 to 3.5 GHz, Bandwidth 200 MHz, Center Frequency 3400 MHz, Insertion Loss 2 dB, Lower Rejection 40 dB, 3120 MHz. Tags: Ceramic, Surface Mount, Ceramic Filter. More details for AM3400B1200 can be seen below.