Pb-Free SAC305 Solder Paste And Its Application in PCB Reflow Process SAC305 solder paste is also known as SAC305 paste, it is a typical pb-free solder paste, and its main components are tin (Sn), silver (Ag), and copper (Cu). Among them, the ratio of SAC305 is 96.5% tin, 3.0% silver and 0.5% copper, it is used for PCB soldering through SMT progress.
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