The SF2280E from Murata is a Band Pass Filter with Frequency 869.19 to 869.23 MHz, Bandwidth 0.021 MHz, Center Frequency 869.2125 MHz, Insertion Loss 2.5 to 4 dB, Power 0.01 W. Tags: Surface Mount, Ceramic, Surface Mount, RF SAW Filter, Ceramic Filter. More details for SF2280E can be seen below.