This Javascript web calculator calculates the trace width of printed circuit board conductors for a given current using formulas from IPC-2221. Other options that Calculator consists are as following:
Regulators
Track Width
Electrical Spacing
Trans Line
RF Attenuators
Color Code
Board Classes
Hi radcliffkaty1, I checked your reference sites and found quite helpful to me. But I am looking for some trusted resources for electronic assembly knowledge.