The ECRA1575R20C32A from ECHO Microwave is a Band Stop Filter with Stopband Frequency 1565 to 1585 MHz, Bandwidth 20 MHz, Insertion Loss 1.5 dB ( DC-1560, 1630-2500 MHz), Rejection 32 dB. Tags: Module with Connectors, Ceramic Filter. More details for ECRA1575R20C32A can be seen below.