The SXBP-310 from Mini Circuits is a Band Pass Filter with Frequency 300 to 320 MHz, Bandwidth 20 MHz, Center Frequency 310 MHz, Insertion Loss 4.3 to 5.5 dB, Rejection 20 dB @ DC-280 and 342-2250 MHz. Tags: Surface Mount, Ceramic, Ceramic Filter. More details for SXBP-310 can be seen below.