The SF1184B-1 from Murata is a Band Pass Filter with Frequency 922.5 to 972.5 MHz, Bandwidth 25 MHz, Center Frequency 947.5 MHz, Insertion Loss 2.7 to 3.5 dB, Power 0.031 W. Tags: Surface Mount, Ceramic, Surface Mount, Ceramic Filter. More details for SF1184B-1 can be seen below.