The MFB-3325CH from Marki Microwave is a Band Pass Filter with Frequency 31.5 to 35 GHz, Center Frequency 33250 MHz, Insertion Loss 2.33 to 4 dB, Upper Rejection 25 to 40 dB, Lower Rejection 25 to 40 dB. Tags: Die, MMIC Filter. More details for MFB-3325CH can be seen below.