The 2786-5 from KR Electronics (A Division of NIC) is a Band Pass Filter with Frequency 42.525 to 45.225 MHz, Bandwidth 2.7 MHz, Center Frequency 43.875 MHz, Insertion Loss 1 dB, Rejection 40 dB. Tags: DIP, Lumped Component Filter. More details for 2786-5 can be seen below.