The SF2040B-2 from Murata is a Band Pass Filter with Frequency 76.76 to 84.16 MHz, Bandwidth 3.7 MHz, Center Frequency 80.46 MHz, Insertion Loss 9.5 to 12 dB, Power 0.01 W. Tags: Surface Mount, Ceramic, Surface Mount, IF SAW Filter, Ceramic Filter. More details for SF2040B-2 can be seen below.