The MFBC-00017CH from Marki Microwave is a Band Pass Filter with Frequency 34.50 to 49.50 GHz, Center Frequency 42000 MHz, Insertion Loss 1.5 to 1.64 dB, Upper Rejection 30 to 47 dB, Lower Rejection 30 to 51 dB. Tags: Die, MMIC Filter. More details for MFBC-00017CH can be seen below.