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Typical or maximum in body size

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Michelle Poh View Drop Down
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    Posted: 19 Jun 2020 at 2:41am
Hi, I am new here in PCB libraries.

I like to ask about File naming convention.

Refering to IPC7351 naming convention, for eg. 
.LCC + Pin Qty. + P Pitch _ Body Length X Width X Height + L Lead Length X Width

The Body Length X Width X Height is using the typical or max values with reference to datasheets ?

regards
Michelle
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Tom H View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Tom H Quote  Post ReplyReply Direct Link To This Post Posted: 19 Jun 2020 at 8:21am
The entire Land Pattern Naming Convention uses "Nominal Dimensions" except for "Maximum Height". 

The Tolerances would constantly change the Maximum values and users should not use the mfr. Tolerances, but use Tolerances that are in range of your acceptability to reduce the number of Footprints in your library. 

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Michelle Poh View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Michelle Poh Quote  Post ReplyReply Direct Link To This Post Posted: 23 Jun 2020 at 1:39am
Thank you very much for your reply, Tom Smile
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