The PSF49B05S from Nuvotronics, Inc. is a Band Pass Filter with Frequency 47.2 to 52.4 GHz, Bandwidth 5200 MHz, Center Frequency 49800 MHz, Insertion Loss 1.2 to 1.7 dB, Upper Rejection 30 to 34 dB@55 GHz. Tags: Surface Mount. More details for PSF49B05S can be seen below.