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From: Don Y <blockedofcourse@foo.invalid>
Newsgroups: sci.electronics.design
Subject: Re: Datasheets and probability
Date: Sat, 14 Dec 2024 23:39:26 -0700
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On 12/14/2024 6:50 PM, John S wrote:
> There are sometimes 3 columns on a datasheet which may contain min, nom, and 
> max values. Like Vds for example.
> 
> Is there any probability tacitly assigned to the values? I know that nominal is 
> the average, and I assume that the value lies between the two middle one 
> standard deviation points.
> 
> 1. Is that a valid assumption?
> 
> 2. Is the min between one and two standard deviations down from the mean?

Min and Max are "guaranteed" limits (as much as anything can be "guaranteed").
Typ(ical) is where the *process* tends to produce the most yield.

That can change, over time. But, it will always be constrained by [min,max].