The SF0250001 from Filtronetics is a Band Pass Filter with Frequency 249.9 to 250.90 MHz, Bandwidth 1 MHz, Center Frequency 250.40 MHz, Insertion Loss 2.05 to 3.8 dB, Rejection 40 to 66 dB. Tags: Surface Mount, RF SAW Filter. More details for SF0250001 can be seen below.