The MFBA-00003CH from Marki Microwave is a Band Pass Filter with Frequency 10.10 to 14.10 GHz, Center Frequency 12000 MHz, Insertion Loss 2.1 dB, Upper Rejection 40 to 44 dB, Lower Rejection 40 to 80 dB. Tags: Die, MMIC Filter. More details for MFBA-00003CH can be seen below.