The 2157-140-10-50 from KR Electronics (A Division of NIC) is a Band Pass Filter with Frequency 133 to 147 MHz, Bandwidth 14 MHz, Center Frequency 140 MHz, Insertion Loss 1.5 dB, Rejection 40 dB. Tags: DIP, Lumped Component Filter. More details for 2157-140-10-50 can be seen below.