The SF2252E from Murata is a Band Pass Filter with Frequency 1.54 to 1.65 GHz, Bandwidth 55 MHz, Center Frequency 1590 MHz, Insertion Loss 2.3 to 4 dB, Power 0.01 W. Tags: Surface Mount, Ceramic, Surface Mount, RF SAW Filter, Ceramic Filter. More details for SF2252E can be seen below.