The 3030-140-10 from KR Electronics (A Division of NIC) is a Band Pass Filter with Frequency 131.05 to 148.95 MHz, Bandwidth 17.9 MHz, Center Frequency 140 MHz, Insertion Loss 2 dB, Rejection 40 dB. Tags: Surface Mount, Lumped Component Filter. More details for 3030-140-10 can be seen below.