The EMDA10D2535P70B20D(Dual) from ECHO Microwave is a Band Pass Filter with Frequency 2.5 to 2.57 GHz, Insertion Loss 1 dB, Rejection 10 to 20 dB, Return Loss 15 dB. Tags: Surface Mount, Ceramic, Ceramic Filter. More details for EMDA10D2535P70B20D(Dual) can be seen below.