The SF2049E-1 from Murata is a Band Pass Filter with Frequency 889 to 941 MHz, Bandwidth 26 MHz, Center Frequency 915 MHz, Insertion Loss 2.2 to 3.5 dB, Power 0.25 W. Tags: Surface Mount, Ceramic, Surface Mount, RF SAW Filter, Ceramic Filter. More details for SF2049E-1 can be seen below.