The 2311 from KR Electronics (A Division of NIC) is a Low Pass RF Filter with Frequency DC to 5 MHz, Stopband Frequency 15 MHz, 3 dB Cutoff Frequency 5 MHz, Lower Rejection 38 dB@15 MHz, Upper Rejection 0.5 dB@15 MHz. Tags: Plug In. More details for 2311 can be seen below.
