The SF0433002 from Filtronetics is a Band Pass Filter with Frequency 430.02 to 437.82 MHz, Bandwidth 4 MHz / 7.8 MHz, Center Frequency 433.92 MHz, Insertion Loss 2.2 to 2.9 dB, Rejection 25 to 61 dB. Tags: Surface Mount, RF SAW Filter. More details for SF0433002 can be seen below.