The AM1880B263 from Anatech Electronics is a Band Pass Filter with Frequency 1.85 to 1.91 GHz, Bandwidth 60 MHz, Center Frequency 1880 MHz, Insertion Loss 1.9 dB, Upper Rejection 24 dB @ 1980 MHz. Tags: Ceramic, Surface Mount, Ceramic Filter. More details for AM1880B263 can be seen below.