The BWLF-16G from Sainty-Tech Communications Limited is a Low Pass RF Filter with Frequency DC to 16 GHz, 3 dB Cutoff Frequency 16 GHz, Insertion Loss 1.7 dB @16GHz, Rejection 20 dB @21.9GHz, 40 dB @25.2GHz, Power 30 dBm. Tags: Die. More details for BWLF-16G can be seen below.