The SF2194E from Murata is a Band Pass Filter with Frequency 1.21 to 1.22 GHz, Bandwidth 0.5 MHz, Center Frequency 1220 MHz, Insertion Loss 4 to 5.7 dB, Operating_Temperature -30 to 85 Degree C. Tags: Surface Mount, Ceramic, Surface Mount, Ceramic Filter. More details for SF2194E can be seen below.