The SF1035040 from Filtronetics is a Band Pass Filter with Frequency 1.015 to 1.055 GHz, Bandwidth 40 MHz, Center Frequency 1035 MHz, Insertion Loss 3 to 4.5 dB, Rejection 35 to 55 dB. Tags: Surface Mount, RF SAW Filter. More details for SF1035040 can be seen below.