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What is parasitic resistance / capacitance?

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fabbie

New Member
Hi, need some help in finding out what is this exactly.

when i was actually designing a PCB board, someone told me that the tracks of a circuit shouldn't be too close(0.5mm apart). And this has something to do with parasitic resistance / capacitance. But i have no idea what it is.

I already searched using google but i can't find any definition on it? Can someone please explain what is parasitic resistance / capacitance and how does it actually occur?

thanks alot in advance
 

Nigel Goodwin

Super Moderator
Most Helpful Member
A capacitor is two conductors seperated by an insulator - which is EXACTLY what two nearby PCB tracks are. This is only likely to be a problem under certain circumstances, and normally only at very high frequencies.

As you haven't mentioned what your circuit is?, I can't suggest if it might be a concern - but unless it's a high frequency RF circuit, it's very unlikely.
 
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