The EMEA8F2530P20D50A from ECHO Microwave is a Band Pass Filter with Frequency 2.52 to 2.54 GHz, Insertion Loss 2 dB, Rejection 50 dB @ 2430MHz, Return Loss 14 dB. Tags: Surface Mount, Ceramic, Ceramic Filter. More details for EMEA8F2530P20D50A can be seen below.