The DEI9647-4.30MHz from Dynamic Engineers is a Band Pass Filter with Frequency 4.28 to 4.32 MHz, Bandwidth 40 kHz, Center Frequency 4.3 MHz, Insertion Loss 6 dB, Rejection 60 dB@±35 kHz of Center Frequency. Tags: Surface Mount, Through Hole, Crystal Filter. More details for DEI9647-4.30MHz can be seen below.