The 2322 from KR Electronics (A Division of NIC) is a Band Pass Filter with Frequency 4.335 to 5.565 MHz, Bandwidth 1.23 MHz, Center Frequency 4.95 MHz, Insertion Loss 1.4 dB, Rejection 45 dB. Tags: PCB Mount, Surface Mount, Lumped Component Filter. More details for 2322 can be seen below.