The BWLF-R16 from Sainty-Tech Communications Limited is a Low Pass RF Filter with Frequency DC to 0.16 GHz, 3 dB Cutoff Frequency 0.16 GHz, Insertion Loss 2.4 dB @0.16GHz, Rejection 20 dB @0.5GHz, 40 dB @0.8GHz, Power 30 dBm. Tags: Die. More details for BWLF-R16 can be seen below.