The DEI5377-30.00MHz from Dynamic Engineers is a Band Pass Filter with Frequency 29.972 to 30.028 MHz, Bandwidth 56 kHz, Center Frequency 30 MHz, Insertion Loss 4 dB, Rejection 60 dB@±70 kHz of Center Frequency. Tags: Surface Mount, Through Hole, Crystal Filter. More details for DEI5377-30.00MHz can be seen below.