The LP2EA1770A7 from KYOCERA AVX is a Low Pass RF Filter with Frequency DC to 1.77 GHz, 3 dB Cutoff Frequency 1.97 GHz, Insertion Loss 0.8 to 1.2 dB, Rejection 30 to 40 dB, Upper Rejection 30 dB @2.33 to 5 GHz, 40 dB @2.37 to 4.5 GHz. Tags: Surface Mount, Ceramic Filter. More details for LP2EA1770A7 can be seen below.