The 2157-125-10-50 from KR Electronics (A Division of NIC) is a Band Pass Filter with Frequency 118.75 to 131.25 MHz, Bandwidth 12.5 MHz, Center Frequency 125 MHz, Insertion Loss 3 dB, Rejection 40 dB. Tags: DIP, Lumped Component Filter. More details for 2157-125-10-50 can be seen below.