Bob,
I am the guilty party that established the 5mm rule. That was done back
when I was consulting and was the result of numerous cracked capacitors
around the world. One would think that things have gotten better with the
move to smaller parts but dielectric thickness and also shrunk increasing
crack sensitivity so things are effectively the same. Cracked capacitors
put two kids and my wife through university along with paying the rent. Ah
to be consulting again with the same problems being repeated, easy work.

John Maxwell

At 03:20 PM 6/10/2004 -0400, you wrote:
>I have been given a v-groove score keep out area dimension of 1mm from the
>edge of the groove to the component body; except the dimension becomes 5mm
>for ceramic components. 5mm seems like a very large value. Does anybody have
>experience with this? Is it really necessary to keep ceramic components that
>far from a v-groove score?
>
>Thanks.
>
>Bob
>
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