PCB design copper and platinum thickness, line width and current relationship
date：2019-02-21 09:18:00
PCB design copper and platinum thickness, line width and current relationship
Before we understand the PCB design's copper-platinum thickness, line width, and current relationship, let's take a look at the conversion between the thickness of the PCB copper, in inches and millimeters: "In many data sheets, the copper thickness of the PCB is often ounced. To do the unit, its conversion relationship with inches and millimeters is as follows:
1 oz = 0.0014 in. = 0.0356 mm (mm)
2 oz = 0.0028 in. = 0.0712 mm (mm)
Ounce is the unit of weight, which can be converted to millimeters because the copper thickness of pcb is ounces per square inch."
PCB design copper and platinum thickness, line width and current relationship table
It can also be calculated using the empirical formula: 0.15 × line width (W) = A
The above data are the line current carrying values at 25 °C.
Wire impedance: 0.0005 × L / W (line length / line width)
In addition, the relationship between the current carrying value of the wire and the number of vias of the wire
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