The DEI5763-1.4MHz from Dynamic Engineers is a Band Pass Filter with Frequency 1.3985 to 1.4015 MHz, Bandwidth -3000 Hz, -300 Hz, Center Frequency 1.4 MHz, Insertion Loss 5 dB, Rejection 45 dB @ 4KHz. Tags: Through Hole, Crystal Filter. More details for DEI5763-1.4MHz can be seen below.