The 3013-1 from KR Electronics (A Division of NIC) is a Low Pass RF Filter with Frequency DC to 185 MHz, Stopband Frequency 210 MHz, 3 dB Cutoff Frequency 185 MHz, Lower Rejection 30 dB@210 MHz, Upper Rejection 1 dB@210 MHz. Tags: Surface Mount. More details for 3013-1 can be seen below.