IPC-7351 defines three land pattern classes to match assembly capability:
Here is a final professional tip: Every time you create a manual footprint without referencing , you risk 30 minutes of rework per component in production. On a board with 200 unique components, that is 100 hours of troubleshooting.
Many designers still refer to "IPC-7351.pdf" as the 2005/2010 version. Check the document header for revision letter.
The standard is periodically updated (currently on Revision C, often called ). The PDF you seek should be the latest revision.
IPC-7351 defines three land pattern classes to match assembly capability:
Here is a final professional tip: Every time you create a manual footprint without referencing , you risk 30 minutes of rework per component in production. On a board with 200 unique components, that is 100 hours of troubleshooting.
Many designers still refer to "IPC-7351.pdf" as the 2005/2010 version. Check the document header for revision letter.
The standard is periodically updated (currently on Revision C, often called ). The PDF you seek should be the latest revision.