The DFS0403R2595P050 from Zhejiang Jiakang Electronics is a Band Pass Filter with Frequency 2.57 to 2.62 GHz, Center Frequency 2595 MHz, Insertion Loss 2.5 dB, Rejection 40 dB, Power 3 W. Tags: Surface Mount. More details for DFS0403R2595P050 can be seen below.