The SF2315E-1 from Murata is a Band Pass Filter with Frequency 772 to 792 MHz, Bandwidth 10 MHz, Center Frequency 782 MHz, Insertion Loss 2.6 to 3.4 dB, Power 0.31 W. Tags: Surface Mount, Ceramic, Surface Mount, RF SAW Filter, Ceramic Filter. More details for SF2315E-1 can be seen below.