The MFBA-00004CH from Marki Microwave is a Band Pass Filter with Frequency 8.40 to 12.50 GHz, Center Frequency 10180 MHz, Insertion Loss 1.87 to 1.9 dB, Upper Rejection 40 to 46 dB, Lower Rejection 40 to 70 dB. Tags: Die, MMIC Filter. More details for MFBA-00004CH can be seen below.