The SF1219E from Murata is a Band Pass Filter with Frequency 2.33 to 2.35 GHz, Bandwidth 12.5 MHz, Center Frequency 2338.75 MHz, Insertion Loss 2.8 to 4.5 dB, Power 0.031 W. Tags: Surface Mount, Ceramic, Surface Mount, RF SAW Filter, Ceramic Filter. More details for SF1219E can be seen below.