The 4MB/E-120/U45-S5 from Sainty-Tech Communications Limited is a Band Pass Filter with Frequency 90.85 to 149.15 MHz, Bandwidth 58.3 MHz (1dB), Center Frequency 120 MHz, Insertion Loss 0.75 dB, Upper Rejection 40 dB. Tags: Lumped Component Filter. More details for 4MB/E-120/U45-S5 can be seen below.