The 5MB/C-400/U120-S2A from Sainty-Tech Communications Limited is a Band Pass Filter with Frequency 328.5 to 471.5 MHz, Bandwidth 143 MHz (1dB), Center Frequency 400 MHz, Insertion Loss 0.5 dB, Upper Rejection 40 dB. Tags: Lumped Component Filter. More details for 5MB/C-400/U120-S2A can be seen below.