The EMA8F2145P70F22D from ECHO Microwave is a Band Pass Filter with Frequency 2.11 to 2.18 GHz, Insertion Loss 3 dB, Rejection 22 dB @ 2090MHz, Return Loss 14 dB. Tags: Surface Mount, Ceramic, Ceramic Filter. More details for EMA8F2145P70F22D can be seen below.