The LP500CH3-0S from R & K Company Limited is a Low Pass RF Filter with Frequency DC to 500 MHz, Stopband Frequency 1000 to 2500 MHz, 3 dB Cutoff Frequency 500 MHz, Insertion Loss 1 dB, Rejection 45 dB. Tags: Module with Connector, Chebyshev Filter. More details for LP500CH3-0S can be seen below.