The PSF29B03S from Nuvotronics, Inc. is a Band Pass Filter with Frequency 27.5 to 31 GHz, Bandwidth 3500 MHz, Center Frequency 29250 MHz, Insertion Loss 1.2 to 1.5 dB, Upper Rejection 60 [email protected] GHz. Tags: Surface Mount. More details for PSF29B03S can be seen below.