The MF3A2145S70DCB from Sainty-Tech Communications Limited is a Band Pass Filter with Frequency 2110 to 2180 MHz, Bandwidth 70 MHz, Center Frequency 2145 MHz, Insertion Loss 2.7 dB, Upper Rejection 20 to 40 dB. Tags: Surface Mount, Monoblock Filter, Dielectric Filter. More details for MF3A2145S70DCB can be seen below.