The 6MB/C-50/U50-S2A from Sainty-Tech Communications Limited is a Band Pass Filter with Frequency 20.7 to 79.3 MHz, Bandwidth 58.6 MHz (1dB), Center Frequency 50 MHz, Insertion Loss 0.38 dB, Upper Rejection 40 dB. Tags: Lumped Component Filter. More details for 6MB/C-50/U50-S2A can be seen below.