The SF2136E from Murata is a Band Pass Filter with Frequency 432.18 to 435.66 MHz, Bandwidth 1.74 MHz, Center Frequency 433.92 MHz, Insertion Loss 2 to 3.3 dB, Power 0.01 W. Tags: Surface Mount, Ceramic, Surface Mount, RF SAW Filter, Ceramic Filter. More details for SF2136E can be seen below.