The 3MB/C-25/U3-14 from Sainty-Tech Communications Limited is a Band Pass Filter with Frequency 22.69 to 27.31 MHz, Bandwidth 4.62 MHz (1dB), Center Frequency 25 MHz, Upper Rejection 40 dB, Lower Rejection 40 dB. Tags: Lumped Component Filter. More details for 3MB/C-25/U3-14 can be seen below.