The PDBF-1R3/2R3-5C2 from Sainty-Tech Communications Limited is a Band Pass Filter with Frequency 1.3 to 2.3 GHz, Center Frequency 1.8 GHz, Insertion Loss [email protected], Rejection =40 dB @0.75&3.2GHz, Upper Rejection 40 dB. Tags: Surface Mount. More details for PDBF-1R3/2R3-5C2 can be seen below.