The SF2255E from Murata is a Band Pass Filter with Frequency 1.03 to 1.09 GHz, Bandwidth 30 MHz, Center Frequency 1056 MHz, Insertion Loss 2.6 to 3.5 dB, Power 0.01 W. Tags: Surface Mount, Ceramic, Surface Mount, RF SAW Filter, Ceramic Filter. More details for SF2255E can be seen below.