The LFCN-3402+ from Mini Circuits is a Low Pass RF Filter with Frequency DC to 34 GHz, Stopband Frequency 44 to 67 GHz, 3 dB Cutoff Frequency 35.5 GHz, Insertion Loss 2.8 to 3.5 dB, Rejection 25 to 32 dB. Tags: Surface Mount, Ceramic Filter. More details for LFCN-3402+ can be seen below.