The 6MB/E-300/U110-S5A from Sainty-Tech Communications Limited is a Band Pass Filter with Frequency 239.5 to 360.5 MHz, Bandwidth 121 MHz (1dB), Center Frequency 300 MHz, Insertion Loss 0.81 dB, Upper Rejection 40 dB. Tags: Lumped Component Filter. More details for 6MB/E-300/U110-S5A can be seen below.