The SXBP-640 from Mini Circuits is a Band Pass Filter with Frequency 600 to 680 MHz, Bandwidth 80 MHz, Center Frequency 640 MHz, Insertion Loss 2.61 to 2.94 dB, Rejection 20 dB @ 500 and 750 MHz. Tags: Surface Mount, Ceramic, Ceramic Filter. More details for SXBP-640 can be seen below.