What is the largest solder ball I am allowed that would not violate
minimum electrical clearance?
 
I am working within class 3 requirements.  The component in question has
9.6mm spacing from the edge of one pad to another. Eventually this
assembly will be conformally coated. 
 
I've turned to A-610, section 12.4.10 but it presents me with this
"minimum electrical clearance" question, and it's appendix 1 doesn't
seem to be of much help. 
 
Any thoughts would be truly appreciated.
 
 
Rich K
 
 
 
 

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