The EMA6E1350P100E40B from ECHO Microwave is a Band Pass Filter with Frequency 1.3 to 1.4 GHz, Insertion Loss 2.5 dB, Rejection 40 dB @ 1200 MHz, Return Loss 15 dB. Tags: Surface Mount, Ceramic, Ceramic Filter. More details for EMA6E1350P100E40B can be seen below.