The LP0AA0322A7 from KYOCERA AVX is a Low Pass RF Filter with Frequency DC to 0.322 GHz, 3 dB Cutoff Frequency 0.386 GHz, Insertion Loss 0.8 to 1.2 dB, Rejection 30 dB, Upper Rejection 30 dB @0.454 to 2 GHz. Tags: Surface Mount, Ceramic Filter. More details for LP0AA0322A7 can be seen below.