The ECA1507P5F45A from ECHO Microwave is a Band Pass Filter with Frequency 1.5 to 1.51 GHz, Insertion Loss 3 dB, Rejection 45 dB @ DC to 1502.5MHz, Ripple 1 dB, Return Loss 20 dB. Tags: Cavity Filter. More details for ECA1507P5F45A can be seen below.