With the continuous updating and upgrading of electronic products, new products have entered thousands of households. However, many friends are not very clear about the production process of PCB sampling factories when they first start planning PCBs, and do not know what line width is more suitable. Below, the editor will based on

　　Professional PCB manufacturers are constantly updating and upgrading their electronic products, and new products have entered millions of households. However, many friends are not very clear about the production process capability of PCB manufacturers when they first plan their PCBs, and do not know what line width is suitable. Below, the editor will provide specific explanations based on the factory's production capability.

　　1. The width of the primary PCB power line should be above 40 mils, and the width should also be above 25 mils if conditions permit;

　　2. Other considerations also include practical current. Generally, 10mil can withstand a large current of 1a, and an appropriate line width should be selected based on practical current;

　　3. The ground wire of the power supply should be wider than the line width of V+, and try to surround V+as much as possible to reduce interference and reduce power ripple;

　　4. Converted to mm, it can be simply recorded as the positive value of the power supply not less than 0.6mm, with the negative value of the power supply greater than the positive value, and surrounded by the positive value of the power supply.

　　At present, the mainstream in China is 6mil. But usually when the requirements are not high, higher reliability 10mil or 8mil should be chosen.