Dear all,

 

  According to PCB material FR4 chart, the SR and VR is required and material datasheet all show the test value, can we cal the dielectric withstand volts by Ohm Law? We assume the dielectric breakdown current value is 5 mA . And all the dielectric thickness for VR is defined and the line width and spacing is also defined for SR.

 

Best regards!

Jan Chen

 


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