The BWLF-5G from Sainty-Tech Communications Limited is a Low Pass RF Filter with Frequency DC to 5 GHz, 3 dB Cutoff Frequency 5 GHz, Insertion Loss 1.6 dB @5.0GHz, Rejection 20 dB @7.25GHz, 40 dB @7.95GHz, Power 30 dBm. Tags: Die. More details for BWLF-5G can be seen below.