The MFLP-00004PSM from Marki Microwave is a Low Pass RF Filter with Frequency DC to 15 GHz, Stopband Frequency 20 to 40 GHz, 3 dB Cutoff Frequency 15.4 GHz, Insertion Loss 0.6 dB, Rejection 30 to 49 dB. Tags: Surface Mount, MMIC. More details for MFLP-00004PSM can be seen below.