The BFCN-5750 from Mini Circuits is a Band Pass Filter with Frequency 5.65 to 5.85 GHz, Center Frequency 5750 MHz, Insertion Loss 1.85 to 2.5 dB, Rejection 25 to 50 dB, Upper Rejection 25 to 50 dB. Tags: Surface Mount, Ceramic, Ceramic Filter. More details for BFCN-5750 can be seen below.