This is the 187 Series 4.8*0.5mm Polarized PCB Quick Terminal, designed specifically for PCB soldering applications. The built-in anti-reverse feature effectively prevents incorrect insertion during assembly, greatly improving production yield and assembly efficiency. Made of high-quality brass with tin plating, the terminal offers excellent electrical conductivity, strong oxidation resistance, and stable insertion/removal performance. It is suitable for PCB wiring in household appliances, industrial control equipment, power modules, and more. Supplied in loose pack for easy bulk purchasing and automated production, it is the ideal component for high-reliability PCB wiring solutions.