The 3121 from KR Electronics (A Division of NIC) is a Low Pass RF Filter with Frequency DC to 100 MHz, Stopband Frequency 109.9 MHz, 3 dB Cutoff Frequency 100 MHz, Lower Rejection 20 [email protected] MHz, Upper Rejection 3 [email protected] MHz. Tags: Surface Mount. More details for 3121 can be seen below.
