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AH_WA70
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Join Date: Mar 2008
Posts: 81

PCB Design: Calculating Track Thickness and Spacing

05/08/2008 3:08 AM

how can i calculate the track thickness and the spacing on a PCB?
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tdesmit
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Engineering Fields - Electrical Engineering - New Member United States - Member - New Member

Join Date: Apr 2007
Location: Wichita, Kansas USA
Posts: 653
Good Answers: 30
#1

Re: PCB Design: Calculating Track Thickness and Spacing

05/08/2008 11:16 AM

After noticing the other questions you have posted in Comm & Electronics, I would like to know what class we are assisting you in passing, I would like credit too . The optimum trace "width" (I don't think you meant thickness) and trace spacing are dependant on many variables. Three factors that come to mind are; 1) What impedance do you want the trace to be. 2) How much current will the trace carry? 3) What is the highest voltage the trace will carry?

There are formulas available where these and other parameters can be entered, and the optimum width and/or spacing will be given.

Good luck with class.

Tom
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AH_WA70
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Join Date: Mar 2008
Posts: 81
#2
In reply to #1

Re: PCB Design: Calculating Track Thickness and Spacing

05/11/2008 2:56 AM

Thanks for your comment . yes i meant width, and please I want these formulas.

I repair PCB.
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tdesmit
Guru
Engineering Fields - Electrical Engineering - New Member United States - Member - New Member

Join Date: Apr 2007
Location: Wichita, Kansas USA
Posts: 653
Good Answers: 30
#3
In reply to #2

Re: PCB Design: Calculating Track Thickness and Spacing

05/12/2008 8:05 AM

Google "trace width calculator", and you should have many choices to choose from. I'm not sure why you would need to calculate trace widths to repair PCB's .

Tom
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