The SF2253E from Murata is a Band Pass Filter with Frequency 2.59 to 2.73 GHz, Bandwidth 70 MHz, Center Frequency 2655 MHz, Insertion Loss 2.2 to 3.6 dB, Power 0.031 W. Tags: Surface Mount, Ceramic, Surface Mount, Ceramic Filter. More details for SF2253E can be seen below.