The DEI9967-37.50MHz from Dynamic Engineers is a Band Pass Filter with Frequency 37.465 to 37.535 MHz, Bandwidth 70 kHz, Center Frequency 37.5 MHz, Insertion Loss 3 dB, Rejection 45 dB@±150 kHz of Center Frequency. Tags: Surface Mount, Through Hole, Crystal Filter. More details for DEI9967-37.50MHz can be seen below.