The EMA8J2450P100G30D from ECHO Microwave is a Band Pass Filter with Frequency 2.4 to 2.5 GHz, Insertion Loss 3.2 dB, Rejection 30 dB @ 2370 MHz, Return Loss 15 dB. Tags: Surface Mount, Ceramic, Ceramic Filter. More details for EMA8J2450P100G30D can be seen below.