The AE1400L7287 from Anatech Electronics is a Low Pass RF Filter with Frequency DC to 1.4 GHz, 3 dB Cutoff Frequency 1.4 GHz, Insertion Loss 1.5 to 3 dB, Rejection 15 to 20 dB, Power 0.5 W. Tags: Surface Mount, Lumped Component Filter. More details for AE1400L7287 can be seen below.