The 3008 from KR Electronics (A Division of NIC) is a Low Pass RF Filter with Frequency DC to 1250 MHz, Stopband Frequency 1600 MHz, 3 dB Cutoff Frequency 1250 MHz, Lower Rejection 40 dB@1600 MHz, Upper Rejection 1 dB@1600 MHz. Tags: Surface Mount. More details for 3008 can be seen below.