The ECA8000P500A55A from ECHO Microwave is a Band Pass Filter with Frequency 7.75 to 8.25 GHz, Insertion Loss 0.5 dB, Rejection 55 dB @ DC to 6580MHz, Ripple 0.3 dB, Return Loss 15 dB. Tags: Cavity Filter. More details for ECA8000P500A55A can be seen below.