The ECA5500P2000C62A from ECHO Microwave is a Band Pass Filter with Frequency 4.5 to 6.5 GHz, Insertion Loss 1.1 dB, Rejection 62 dB @ DC to 3902MHz, Ripple 0.8 dB, Return Loss 16 dB. Tags: Cavity Filter. More details for ECA5500P2000C62A can be seen below.