The AE217B5791 from Anatech Electronics is a Band Pass Filter with Frequency 217.75 MHz, Center Frequency 217.75 MHz, Insertion Loss 1.2 dB, Upper Rejection 30 dB 234 to 600 MHz, Lower Rejection 30 dB, DC to 200 MHz. Tags: Surface Mount, Lumped Component Filter. More details for AE217B5791 can be seen below.