The LP0AA1670A7 from KYOCERA AVX is a Low Pass RF Filter with Frequency DC to 1.67 GHz, 3 dB Cutoff Frequency 2 GHz, Insertion Loss 0.7 to 1.2 dB, Rejection 30 to 40 dB, Upper Rejection 30 dB @2.3 to 8 GHz, 40 dB @2.36 to 7 GHz. Tags: Surface Mount, Ceramic Filter. More details for LP0AA1670A7 can be seen below.