Leakage resistance limits in nominal PCB - Good or Bad board

[karpcb]

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

 

[KlausST]

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

 

[karpcb]

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.

 

[senilicus]

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