The LC9SR-225M-50-1765A from TTE Filters is a Low Pass RF Filter with Frequency DC to 225 MHz, 3 dB Cutoff Frequency 225 MHz, Insertion Loss 1 dB, Rejection 40 dBc / 60 dBc, Power 10 W. Tags: Module with Connector, Chebyshev Filter. More details for LC9SR-225M-50-1765A can be seen below.