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how to use the SMD reference calculator? |
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fishoutofwater 
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Joined: 02 Nov 2015 Status: Offline Points: 18 |
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 Topic: how to use the SMD reference calculator?Posted: 04 Nov 2015 at 1:08pm |
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Hello,
This is probably a very silly question, but how do I use the SMD reference calculator? Is L/S/T/W information gathered from the package data sheet, and C/X/Y the recommended footprint outlines? Thank you for your help. |
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Jeff.M
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Joined: 16 May 2012 Location: San Diego Status: Offline Points: 477 |
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Posted: 05 Nov 2015 at 9:24am |
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The purpose of the reference calculator is to help understanding the IPC land pattern calculation as set forth in the IPC-7351 publication. L, S, T and W are terminal dimensions provided by the component manufacturer. C, X and Y are the dimensions of the calculated land pattern.
You should refer to chapter 3 of the publication for a full explanation.
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