The BWLF-17G from Sainty-Tech Communications Limited is a Low Pass RF Filter with Frequency DC to 17 GHz, 3 dB Cutoff Frequency 17 GHz, Insertion Loss 1.7 dB @17GHz, Rejection 20 dB @23.2GHz, 40 dB @26.6GHz, Power 30 dBm. Tags: Die. More details for BWLF-17G can be seen below.