The 2434-5 from KR Electronics (A Division of NIC) is a Low Pass RF Filter with Frequency DC to 5 MHz, Stopband Frequency 10 MHz, 3 dB Cutoff Frequency 5 MHz, Lower Rejection 55 dB@10 MHz, Upper Rejection 0.5 dB@10 MHz. Tags: Surface Mount. More details for 2434-5 can be seen below.