The AE5900L9239 from Anatech Electronics is a Low Pass RF Filter with Frequency 500 MHz to 5.9 GHz, Stopband Frequency 5.4 GHz, Insertion Loss 2 dB, Rejection 25 dB, Power 1 W. Tags: Drop-In, Lumped Component Filter. More details for AE5900L9239 can be seen below.