The BPF-A580 from Mini Circuits is a Band Pass Filter with Frequency 520 to 640 MHz, Bandwidth 120 MHz, Center Frequency 580 MHz, Insertion Loss 2.40 to 2.52 dB, Rejection 20 dB @ 440 and 720 MHz. Tags: Surface Mount, Ceramic, Ceramic Filter. More details for BPF-A580 can be seen below.