The LP2500K0603AT from Frontier Electronics is a Low Pass RF Filter with Frequency 2.4 to 2.5 GHz, Insertion Loss 0.65 dB, Rejection 27 to 35 dB, VSWR 1.50:1, Operating_Temperature -40 to 85 Degree C. Tags: Surface Mount, Ceramic Filter. More details for LP2500K0603AT can be seen below.