The SF2159E from Murata is a Band Pass Filter with Frequency 934 to 1014 MHz, Bandwidth 40 MHz, Center Frequency 974 MHz, Insertion Loss 3.1 to 4.5 dB, Operating_Temperature -20 to 70 Degree C. Tags: Surface Mount, Ceramic, Surface Mount, Ceramic Filter. More details for SF2159E can be seen below.