Leakage resistance limits in nominal PCB - Good or Bad board

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Hello,

How much leakage resistance that can I expect in a nominal PCB or is there any Industry standard for leakage resistance limit to say good or bad board? May be in the range of "ns"

Thx
 

Hi,

it depends on
* PCB material
* PCB coating
* humidity
* dirt
* voltage
* age
...
* and - maybe the most - on your PCB layout and layer stacking.

More common is to speak of "leakage current".

Klaus
 

Thank you. Do you know any industry limits for leakage current in terms of nA? We are trying to find the industry range to pass or reject a board based on limits.
 

You can find some info on this subject at Coombs' Printed Circuit Handbook, Chapter 15, Electrical and mechanical design parameters (6th edition)
 

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