The SF2168E from Murata is a Band Pass Filter with Frequency 1.64 to 1.72 GHz, Bandwidth 40 MHz, Center Frequency 1688.42 MHz, Insertion Loss 4 to 5.5 dB, Operating_Temperature -40 to 85 Degree C. Tags: Surface Mount, Ceramic, Surface Mount, Ceramic Filter. More details for SF2168E can be seen below.