The DFC0303R3450P100 from Zhejiang Jiakang Electronics is a Band Pass Filter with Frequency 3.4 to 3.5 GHz, Bandwidth 100 MHz, Center Frequency 3450 MHz, Insertion Loss 2.5 dB, Rejection 12 dB. Tags: Surface Mount. More details for DFC0303R3450P100 can be seen below.