The DFC0302R1590P044 from Zhejiang Jiakang Electronics is a Band Pass Filter with Frequency 1.568 to 1.612 GHz, Bandwidth 44 MHz, Center Frequency 1590 MHz, Insertion Loss 3 dB, Rejection 10 to 15 dB. Tags: Surface Mount. More details for DFC0302R1590P044 can be seen below.