The 3MB/E-37.5/U1-S5 from Sainty-Tech Communications Limited is a Band Pass Filter with Frequency 36.76 to 38.24 MHz, Bandwidth 1.48 MHz (1dB), Center Frequency 37.5 MHz, Insertion Loss 3.25 dB, Upper Rejection 40 dB. Tags: Lumped Component Filter. More details for 3MB/E-37.5/U1-S5 can be seen below.