The SF05000008 from Filtronetics is a Band Pass Filter with Frequency 499.565 to 500.435 MHz, Bandwidth 0.87 MHz, Center Frequency 500 MHz, Insertion Loss 2.2 to 3.8 dB, Rejection 15 to 30 dB. Tags: Surface Mount, RF SAW Filter. More details for SF05000008 can be seen below.