The 2157-21.4-5-50 from KR Electronics (A Division of NIC) is a Band Pass Filter with Frequency 20.86 to 21.93 MHz, Bandwidth 1.07 MHz, Center Frequency 21.4 MHz, Insertion Loss 3 dB, Rejection 40 dB. Tags: DIP, Lumped Component Filter. More details for 2157-21.4-5-50 can be seen below.
