The ECA2224P6D50AQ from ECHO Microwave is a Band Pass Filter with Frequency 2.22 to 2.23 GHz, Insertion Loss 1.6 dB, Rejection 50 dB @ fe(Bandedges), Ripple 0.6 dB, Return Loss 15 dB. Tags: Cavity Filter. More details for ECA2224P6D50AQ can be seen below.