The 2586-20 from KR Electronics (A Division of NIC) is a Low Pass RF Filter with Frequency DC to 20 MHz, Stopband Frequency 40 MHz, 3 dB Cutoff Frequency 20 MHz, Lower Rejection 55 dB@40 MHz, Upper Rejection 0.5 dB@40 MHz. Tags: Module with Connector. More details for 2586-20 can be seen below.
