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Lec02-handout-TraceWidth

Lec02-handout-TraceWidth - 301-500 volts difference...

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Trace Width & Spacing It's important that your board traces are wide enough to carry the current load, and not so close together that they arc across between the traces. First -- The minimum trace ~aration to prevent arc-over on your 1 oz. copper FR4 boards is a function of the voltage (or potential) difference, between any two adjacent traces. This may be determined as follows: 0-150 volts difference = .025" minimum trace separation 151-300 volts difference = .050" minimum trace separation
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Unformatted text preview: 301-500 volts difference = .100" minimum trace separation Second --The minimum trace width to prevent burning a trace off your 1 oz. copper FR4 board is a function of current along the trace. This may be determined as follows: .50 amps = .005" trace width .80 amps = .010" trace width 1.4 amps = .020" trace width 1.9 amps = .030" trace width 2.5 amps = .050" trace width 3.5 amps = .070" trace width 4.0 amps = .100" trace width 5.5 amps = .150" trace width 6.0 amps = .200" trace width...
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