A “part” is a mapping between a “symbol” (which represents the connectivity within a schematic) and a “cell” (which is the device footprint on a printed circuit board)
The diameter of wires is measured by a standard reference number referred to as the American Wire Gauge (AWG). Figure 4-4 lists some gauge values and the equivalent diameter. From the diameter and assuming copper wire, we can estimate the resistance per length. For example, 22-gauge wire, typical in many personal computer boxes, has a […]