The SF2079D-1 from Murata is a Band Pass Filter with Frequency 238.5 to 263.5 MHz, Bandwidth 12.5 MHz, Center Frequency 251 MHz, Insertion Loss 13 to 15 dB, Power 0.01 W. Tags: Surface Mount, Ceramic, Surface Mount, IF SAW Filter, Ceramic Filter. More details for SF2079D-1 can be seen below.