The 2433-500-SMA from KR Electronics (A Division of NIC) is a Low Pass RF Filter with Frequency DC to 500 MHz, Stopband Frequency 652.5 MHz, 3 dB Cutoff Frequency 500 MHz, Lower Rejection 54 [email protected] MHz, Upper Rejection 3 [email protected] MHz. Tags: Module with Connector. More details for 2433-500-SMA can be seen below.