The DEI9870-22.50MHz from Dynamic Engineers is a Band Pass Filter with Frequency 22.492 to 22.508 MHz, Bandwidth 16 kHz, Center Frequency 22.5 MHz, Insertion Loss 4 dB, Rejection 60 dB@±100 kHz of Center Frequency. Tags: Surface Mount, Through Hole, Crystal Filter. More details for DEI9870-22.50MHz can be seen below.