The LFCN-3052+ from Mini Circuits is a Low Pass RF Filter with Frequency DC to 30.5 GHz, Stopband Frequency 36.5 to 50 GHz, Insertion Loss 0.7 to 2.6 dB, Rejection 20 to 40 dB, Power 1 W. Tags: Surface Mount, Ceramic Filter. More details for LFCN-3052+ can be seen below.