The MF3A3700F200CCB from Sainty-Tech Communications Limited is a Band Pass Filter with Frequency 3600 to 3800 MHz, Bandwidth 200 MHz, Center Frequency 3700 MHz, Insertion Loss 1.45 dB, Upper Rejection 15 dB. Tags: Surface Mount, Monoblock Filter, Dielectric Filter. More details for MF3A3700F200CCB can be seen below.