The AM4650B1217 from Anatech Electronics is a Band Pass Filter with Frequency 4.4 to 4.9 GHz, Bandwidth 500 MHz, Center Frequency 4650 MHz, Insertion Loss 3.5 dB, Upper Rejection 55 dB @ 3650 MHz. Tags: Ceramic, Surface Mount, Ceramic Filter. More details for AM4650B1217 can be seen below.