The 2433-416 from KR Electronics (A Division of NIC) is a Low Pass RF Filter with Frequency DC to 416 MHz, Stopband Frequency 543 MHz, 3 dB Cutoff Frequency 416 MHz, Lower Rejection 54 dB@543 MHz, Upper Rejection 3 dB@543 MHz. Tags: Surface Mount. More details for 2433-416 can be seen below.