The BFCN-5750 from Mini Circuits is a Space Qualified RF Filter with Frequency 5.65 to 5.85 GHz, Center Frequency 5750 MHz, Stop Band Frequency DC to 9500 MHz, Power 2 W, Insertion Loss 1.85 to 2.5 dB. Tags: Surface Mount. More details for BFCN-5750 can be seen below.