The AE138KL7822 from Anatech Electronics is a Low Pass RF Filter with Frequency DC to 100 KHz, 3 dB Cutoff Frequency 100 to 138 KHz, Insertion Loss 0.8 dB, Power 200 W, Return Loss 20 dB. Tags: Module with Connector, Lumped Component Filter. More details for AE138KL7822 can be seen below.