Difference between revisions of "PCB Component Footprint Validation Procedure"

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# Google for the datasheet of the component with entire partnumber
# Google for the datasheet of the component with entire partnumber
# Most of the time either the manufacturers website or the distributors (farnell, RS, digikey, mouser) will offer them for download.
# Most of the time either the manufacturers website or the distributors (farnell, RS, digikey, mouser) will offer them for download.
# In Eagle go to File -> Export -> Libraries and choose "Export original libraries"
# In Eagle go to Library -> Open and select the first library from the archive
# Once the library window opened go to Library -> Package and choose the one matching the one in the partlist
# Now the actual checks begin:
## Check the pitch, position of all pads matches the specifications in the datasheet
## check if all pins are fully surrounded by pads
## check if the pin numbering/naming is matching the datasheet




* for parts that have no value defined check the recommendations and research matching parts
* for parts that have no value defined check the recommendations and research matching parts
* search for best price offer for this or alternative equivalent parts
* search for best price offer for this or alternative equivalent parts

Revision as of 11:51, 6 February 2015

1 Preparations

  1. Install Eagle Freeware edition 7.0.0 (dont use the latest version): http://www.cadsoftusa.com/download-eagle/ and choose "Freeware license" when running it for the first time.
  2. Download *.brd,*.sch and library archive of a project PCB
  3. Open the *.brd or *.sch file in Eagle and go to File -> Export -> Partlist
  4. Save the partlist as text file

2 Verification

2.1 Footprint validation

  1. Google for the datasheet of the component with entire partnumber
  2. Most of the time either the manufacturers website or the distributors (farnell, RS, digikey, mouser) will offer them for download.
  3. In Eagle go to Library -> Open and select the first library from the archive
  4. Once the library window opened go to Library -> Package and choose the one matching the one in the partlist
  5. Now the actual checks begin:
    1. Check the pitch, position of all pads matches the specifications in the datasheet
    2. check if all pins are fully surrounded by pads
    3. check if the pin numbering/naming is matching the datasheet


  • for parts that have no value defined check the recommendations and research matching parts
  • search for best price offer for this or alternative equivalent parts