The RF3702D from Murata is a Band Pass Filter with Frequency 425.44 to 427.44 MHz, Bandwidth 1 MHz, Center Frequency 426.44 MHz, Insertion Loss 2 to 3 dB, Power 0.1 W. Tags: Surface Mount, Ceramic, Surface Mount, RF SAW Filter, Ceramic Filter. More details for RF3702D can be seen below.