The BWLF-R32 from Sainty-Tech Communications Limited is a Low Pass RF Filter with Frequency DC to 0.32 GHz, 3 dB Cutoff Frequency 0.32 GHz, Insertion Loss 2.3 dB @0.32GHz, Rejection 20 dB @0.7GHz, 40 dB @1.1GHz, Power 30 dBm. Tags: Die. More details for BWLF-R32 can be seen below.