The AM5000B1141 from Anatech Electronics is a Band Pass Filter with Frequency 4.8 to 5.2 GHz, Bandwidth 400 MHz, Center Frequency 5000 MHz, Insertion Loss 3.5 dB, Upper Rejection 18 dB @ 5300 MHz. Tags: Ceramic, Surface Mount, Ceramic Filter. More details for AM5000B1141 can be seen below.