The 2156-10-75 from KR Electronics (A Division of NIC) is a Low Pass RF Filter with Frequency DC to 10 MHz, Stopband Frequency 18.75 MHz, 3 dB Cutoff Frequency 10 MHz, Lower Rejection 40 [email protected] MHz, Upper Rejection 1 [email protected] MHz. Tags: Plug In. More details for 2156-10-75 can be seen below.