The LFCW-272+ from Mini Circuits is a Low Pass RF Filter with Frequency DC to 2.69 GHz, 3 dB Cutoff Frequency 3.2 GHz, Insertion Loss 0.5 to 1.2 dB, Rejection 20 to 30 dB, Upper Rejection 20 to 30 dB. Tags: Surface Mount, Ceramic Filter. More details for LFCW-272+ can be seen below.