The 2157-34.5-5-50 from KR Electronics (A Division of NIC) is a Band Pass Filter with Frequency 33.65 to 35.35 MHz, Bandwidth 1.7 MHz, Center Frequency 34.5 MHz, Insertion Loss 3 dB, Rejection 40 dB. Tags: DIP, Lumped Component Filter. More details for 2157-34.5-5-50 can be seen below.