The SF2176E from Murata is a Band Pass Filter with Frequency 432.32 to 435.52 MHz, Bandwidth 1.6 MHz, Center Frequency 433.92 MHz, Insertion Loss 2.2 to 2.9 dB, Power 0.01 W. Tags: Surface Mount, Ceramic, Surface Mount, RF SAW Filter, Ceramic Filter. More details for SF2176E can be seen below.