The LTM455BW from Shoulder Electronics is a Band Pass Filter with Frequency 0.45 to 0.46 MHz, Bandwidth 15 to 30 KHz, Center Frequency 0.455±2.0 MHz, Insertion Loss 4 dB, Ripple 2 dB. Tags: Surface Mount, Ceramic, Ceramic Filter. More details for LTM455BW can be seen below.