The SF2492008 from Filtronetics is a Band Pass Filter with Frequency 2.488 to 2.496 GHz, Bandwidth ±4 MHz, Center Frequency 2492 MHz, Insertion Loss 6.5 to 10 dB, Rejection 15 to 55 dB. Tags: Surface Mount, RF SAW Filter. More details for SF2492008 can be seen below.