The DFS0403R1575P020 from Zhejiang Jiakang Electronics is a Band Pass Filter with Frequency 1.565 to 1.585 GHz, Bandwidth 20 MHz, Center Frequency 1575 MHz, Insertion Loss 0.9 dB, Rejection 20 dB. Tags: Surface Mount. More details for DFS0403R1575P020 can be seen below.