The DEI9868-40.455MHz from Dynamic Engineers is a Band Pass Filter with Frequency 40.4445 to 40.4655 MHz, Bandwidth 21 kHz, Center Frequency 40.455 MHz, Insertion Loss 2.5 dB, Rejection 60 dB@±16.5 kHz of Center Frequency. Tags: Surface Mount, Through Hole, Crystal Filter. More details for DEI9868-40.455MHz can be seen below.