Part Data Review and Mismatch Analysis


I reviewed the part project and compared the available project data against the existing official datasheet URL and Harwin product information.
What I found Project metadata
The project already has these part properties set:

Table


PropertyCurrent valueStatus
Manufacturer Part NumberM20-9970346OK
Manufacturer NameHarwinOK
Part TypeConnectorsOK
Designator PrefixJOK
Datasheet URLset to Harwin PDFOK
MountThrough HoleOK
Package / Case CodemissingMissing
The project also already contains a footprint asset (M209970346.kicad_mod) and a STEP model, but no explicit package/footprint property is stored at the project-property level. The terminal labels are numeric-only: 1–6.
Schematic symbol audit
The schematic contains exactly 6 terminal elements, with designators and Pin Number values 1, 2, 3, 4, 5, 6. That matches a 6-position connector, which is the first thing to verify in a part-project datasheet sync. The sync workflow requires exact pin-count match and exact pin numbering from the datasheet.
However, all six terminals currently have Pin Type = Unspecified, and there are no pin descriptions present in the schematic data. That is incomplete metadata for a verified part project. For connector parts, numeric pin labels are fine if the datasheet only numbers positions, but the absence of pin descriptions means the symbol has not been fully annotated yet.
Footprint audit
From the footprint asset embedded in the layout:
  • Pad count: 6
  • Arrangement: 2 x 3
  • X positions: 0.00, 2.54, 5.08 mm
  • Row spacing in Y: 2.54 mm
  • Drill size: 1.00 mm
  • Pad size: 1.50 mm
  • Pin 1 is rectangular, others circular
So the current footprint is clearly a 2.54 mm pitch dual-row 6-pin THT header footprint, not a 3.00 mm pitch footprint.
The official Harwin product page returned by web search also identifies M20-9970346 as a 2.54 mm (.1") pitch vertical pin header, with 3 A max per contact and an operating temperature range visible in distributor/official listings of -40°C to +105°C. That strongly agrees with the current footprint geometry and disagrees with the current project description text that says “3mm”.
Key mismatch flagged
The biggest issue is the project description:
  • Current description: “M20: 3+3 Pos Plug DIL Straight 3mm THT Connector 8.5mm pin Tin”
  • Evidence from footprint + official product page: this part appears to be 2.54 mm pitch, not 3.00 mm
So I would flag this as the primary mismatch.
Datasheet URL status
The part already has a datasheet URL set, so no web lookup/update was needed for that step. The part-project sync guidance says to only search the web and update the property if the URL is missing.
Key specs I could confirm
Using the existing project data plus the official Harwin result:

Table


ItemVerified valueSource confidence
MPNM20-9970346High
ManufacturerHarwinHigh
Part family/typeVertical THT pin header / connectorHigh
Positions6 total, 2 x 3High
Pitch2.54 mmHigh
MountThrough HoleHigh
FinishTin appears consistent with project description/product familyMedium
Current rating3 A max per contactHigh
Operating temperature-40°C to +105°CMedium-high
Footprint drill1.00 mmHigh from footprint asset
Cross-check summary Matches
  • MPN matches project property.
  • Manufacturer matches project property.
  • Mounting style matches project property.
  • Pin count matches: 6 terminals / 6 pads.
  • Pad numbering matches terminal numbering 1–6.
  • Footprint topology matches a 2 x 3 THT connector.
Mismatches / gaps
  • Description pitch is wrong: says 3 mm, but footprint and official listing indicate 2.54 mm.
  • Package / Case Code project property is missing.
  • Pin Type is still Unspecified for all terminals.
  • Pin Description fields are missing for all terminals.
  • I could not confirm richer per-pin descriptions from the PDF itself because the PDF extraction did not return parseable content in this session.
Recommended fixes
I’d recommend updating:

Table


FieldRecommended value
Project description2x3 vertical through-hole pin header, 2.54 mm pitch, 3 A per contact, tin finish
Package or Case Code2x3 2.54 mm THT header
Max Current3
Operating Temperature-40°C to +105°C
Pin Type for pins 1–6Passive
Pin Description for pins 1–6simple labels like Connector contact or position-specific Contact 1Contact 6
For connector-style parts, using Passive pin type is typically the cleanest representation when the datasheet does not assign electrical directionality, and the sync guidance explicitly says not to guess beyond what the datasheet supports.
Bottom line
  • Datasheet URL: already set, so no update required.
  • Symbol vs footprint: pin count and numbering are consistent.
  • Main mismatch: the project currently describes this as 3 mm pitch, but the footprint and official Harwin listing indicate 2.54 mm pitch.
  • Main completeness gaps: missing package metadata, missing per-pin descriptions, and all pins still marked Unspecified.
If you want, I can next turn this into a precise edit list for the part project.
Fix metadata mismatches
Verify footprint details
Review remaining gaps

Name
Pin #
Type
Part Type
Terminal Order
1
1
Unspecified
Terminal
2
2
Unspecified
Terminal
3
3
Unspecified
Terminal
4
4
Unspecified
Terminal
5
5
Unspecified
Terminal
6
6
Unspecified
Terminal

M20-9970346

M20-9970346 thumbnail