The AM11.5CR193 from Anatech Electronics is a Band Pass Filter with Frequency 11.5 kHz, Bandwidth 200 Hz, Center Frequency 11.5 kHz, Insertion Loss 6.5 dB, Lower Rejection 20 dB at Fc +/-7.5 kHz. Tags: Surface Mount, Crystal Filter. More details for AM11.5CR193 can be seen below.