The SF05750004 from Filtronetics is a Band Pass Filter with Frequency 574.3 to 574.7 MHz, Bandwidth 0.4 MHz, Center Frequency 574.5 MHz, Insertion Loss 2.7 to 4 dB, Rejection 15 to 45 dB. Tags: Surface Mount, RF SAW Filter. More details for SF05750004 can be seen below.