The MFBC-00008CH from Marki Microwave is a Band Pass Filter with Frequency 36.7 to 51.1 GHz, Center Frequency 43190 MHz, Insertion Loss 1.5 to 1.72 dB, Upper Rejection 40 to 45 dB, Lower Rejection 40 to 64 dB. Tags: Die, MMIC Filter. More details for MFBC-00008CH can be seen below.