Library Conventions | KiCad EDA

Version 3.0.34

Library maintainer rules & guidelines

S2.2 Non-functional variations in part number should be replaced with wildcard

Manufacturer Part Numbers (MPN) often include variations that are non-functional.

Examples of parameters considered non-functional:

  • Temperature rating of the component

  • Packaging information (e.g. reel, tray, tape)

  • RoHS / PbFree information

To capture every possible combination of part variation would require a large number of derived symbols and is to be avoided.

Where an MPN has options for such non-functional variations, these portions of the MPN should be replaced with a wildcard character (x). If these non-functional parts of the MPN are at the end of the symbol name then the wildcard should be omitted.