The SF2304B from Murata is a Band Pass Filter with Frequency 174.1 to 175.9 MHz, Bandwidth 0.9 MHz, Center Frequency 175 MHz, Insertion Loss 7.5 to 10 dB, Power 0.01 W. Tags: Surface Mount, Ceramic, Surface Mount, IF SAW Filter, Ceramic Filter. More details for SF2304B can be seen below.