The 2478 from KR Electronics (A Division of NIC) is a Low Pass RF Filter with Frequency DC to 34 MHz, Stopband Frequency 46 MHz, 3 dB Cutoff Frequency 34 MHz, Lower Rejection 40 dB@46 MHz, Upper Rejection 0.25 dB@46 MHz. Tags: Module with Connector. More details for 2478 can be seen below.
