The RF3607D from Murata is a Band Pass Filter with Frequency 385.5 to 421.5 MHz, Bandwidth 18 MHz, Center Frequency 403.5 MHz, Insertion Loss 1.7 to 2 dB, Power 0.031 W. Tags: Surface Mount, Ceramic, Surface Mount, RF SAW Filter, Ceramic Filter. More details for RF3607D can be seen below.