Part Audit Review

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cherepanyadima

Review all available part information (MPN, package, pin count, description, properties). If no datasheet URL is already set, search the web for the official datasheet and update the part's Datasheet property with the URL. Then cross-check the schematic symbol, footprint, and pin descriptions against the datasheet. Summarize key specs and flag any mismatches.

flux

I’ll audit the part metadata, locate the official manufacturer datasheet if needed, update the Datasheet property, then verify symbol pins and footprint geometry against it.

flux

The part already has a datasheet attached, so no URL update is required. I’m now checking the right-angle XA-series mechanical drawing closely; the contact row matches 2.50 mm pitch, but the auxiliary mounting-hole geometry needs validation.
Created a project doc

Part Audit Report

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Part Audit Report Identity and metadata
  • Manufacturer: JST (J.S.T. Mfg. Co., Ltd.)
  • MPN: S12B-XASK-1(LF)(SN)
  • Series: XA
  • Type: 12-circuit, single-row, shrouded wire-to-board header; through-hole; right-angle/side-entry; secure-lock hook
  • Pitch: 2.50 mm
  • Mount: Through-hole
  • Pin/contact count: 12 electrical contacts
  • Datasheet status: A Datasheet URL was already present, so it was not changed. Official manufacturer reference used for cross-check: https://www.jst.com/wp-content/uploads/2021/04/eXA-WB.pdf
Key datasheet specifications Symbol review Matches
  • Exactly 12 electrical terminals are present.
  • Terminal numbering is complete and unique from 1 through 12.

flux

Audit complete. The 12-pin, 2.50 mm-pitch contact geometry and electrical ratings match JST’s datasheet, but the footprint’s polarizing NPTH is Ø3.44 mm instead of Ø1.2 mm, a critical fabrication mismatch; pin types/descriptions are also incomplete. The existing datasheet URL was retained, and an internal part-quality report was filed.
Full findings: Part Audit Report
Fix footprint and pins
Improve connector metadata
Verify corrected footprint
Review 3D model fit
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Pins

Symbol

Layout

Preview

1
Pin Number
1
2
Pin Number
2
7
Pin Number
7
9
Pin Number
9
12
Pin Number
12
4
Pin Number
4
6
Pin Number
6
5
Pin Number
5
11
Pin Number
11
3
Pin Number
3
10
Pin Number
10
8
Pin Number
8
Part Audit Report
Identity and metadata
  • Manufacturer: JST (J.S.T. Mfg. Co., Ltd.)
  • MPN: S12B-XASK-1(LF)(SN)
  • Series: XA
  • Type: 12-circuit, single-row, shrouded wire-to-board header; through-hole; right-angle/side-entry; secure-lock hook
  • Pitch: 2.50 mm
  • Mount: Through-hole
  • Pin/contact count: 12 electrical contacts
  • Datasheet status: A Datasheet URL was already present, so it was not changed. Official manufacturer reference used for cross-check: https://www.jst.com/wp-content/uploads/2021/04/eXA-WB.pdf
Key datasheet specifications

Table

ParameterDatasheet value
Rated current3 A AC/DC with AWG 22 or 20
Rated voltage250 V AC/DC
Temperature range in attached catalog-25 °C to +85 °C, including current-induced temperature rise
Contact resistance10 mΩ max initial; 20 mΩ max after environmental tests
Insulation resistance1,000 MΩ min
Withstand voltage1,000 VAC for 1 minute
Applicable wireAWG 28 to AWG 20
Recommended PCB thickness1.6 mm
Contact material/finishCopper alloy, copper-undercoated, tin-plated
Housing materialGlass-filled PA66, UL94 V-0, natural/ivory
RoHSRoHS2 compliant; (LF)(SN) marking appears on label
Contact pitch2.50 mm, non-cumulative center tolerance ±0.05 mm
Contact PCB holesØ0.9 mm +0.1/0 guideline
Polarizing/auxiliary holeØ1.2 mm +0.1/0 guideline
12-position dimensionsA = 27.5 mm contact span; D = 13.75 mm auxiliary-hole center along row; body width B = 32.5 mm in the part table
Symbol review
Matches
  • Exactly 12 electrical terminals are present.
  • Terminal numbering is complete and unique from 1 through 12.
  • A generic passive terminal representation is electrically appropriate because all connector contacts are equivalent passive conductors.
Mismatches / missing information
  • All terminal Pin Type properties are Unspecified; they should be Passive for connector contacts.
  • Pin descriptions are absent. Recommended description for each terminal: XA header contact, circuit N (with N matching the pin number).
  • The project is represented as 12 independent terminal objects rather than a unified rectangular connector symbol. This is electrically valid in the part-authoring model, but it provides limited visual indication of the shrouded, polarized connector and circuit-1 orientation.
Footprint review
Matches
  • 12 plated through-hole contact pads are present.
  • Contact pads are numbered 1 through 12 with no duplicates or omissions.
  • Contact pitch is exactly 2.50 mm.
  • Pin-1 uses a rectangular pad and the remaining contacts are circular, providing a clear pin-1 marker.
  • Contact drill diameter is 0.90 mm, matching JST's PCB-layout guideline.
  • Contact copper diameter is 1.40 mm, giving a 0.25 mm radial annular ring around the 0.90 mm drill.
  • Contact span is 27.5 mm from pin 1 to pin 12, matching dimension A.
  • The drawn body outline is 32.5 mm wide by 12.6 mm deep, consistent with the side-entry housing dimensions.
  • The auxiliary hole is centered along the 12-pin row at D = 13.75 mm and offset 6.5 mm from the contact row, matching the drawing's location.
Critical mismatch
  • Auxiliary/polarizing NPTH diameter is 3.44 mm in the footprint, but the JST PCB layout calls for Ø1.2 mm +0.1/0. The center location is correct, but the hole is approximately 2.9× too large by diameter. This can materially weaken the PCB, consume routing area, and provide incorrect mechanical support/retention. The footprint should not be released for fabrication until corrected or confirmed by a part-specific JST 2D drawing that explicitly requires a larger hole.
Other footprint observations
  • The silkscreen body outline duplicates the full fabrication outline and may be printed under the connector body; this is not an electrical error but may not add useful assembly information.
  • Courtyard clearance is 1.0 mm around the body outline, which is conservative.
  • The footprint includes one non-electrical mechanical hole as pad 13; this is correctly separate from the 12 electrical contacts.
Description and property review
Correct
  • MPN, manufacturer, 12 positions, 2.50 mm pitch, through-hole mount, right-angle orientation, 3 A rating, 250 V rating, and the attached-catalog -25 °C to +85 °C range agree with the datasheet.
  • Designator prefix J is appropriate.
  • Normalize Part Type from plural Connectors to the platform's singular connector category if desired.
  • Add: Connector Type = Wire-to-board shrouded header; Connector Gender = Male/Header; Connector Pitch = 2.5 mm; Connector Positions = 12; Connector Rows = 1; Current Rating = 3 A; Voltage Rating = 250 V; Operating Temperature = -25 °C to +85 °C; Package or Case Code = a descriptive JST XA right-angle 12-position THT identifier.
  • The official JST series webpage currently advertises a broader -40 °C to +105 °C family range, while the attached eXA-WB catalog states -25 °C to +85 °C. For this exact existing part record, retain the attached part-catalog rating unless JST's current part-specific 2D PDF confirms the expanded range.
Disposition
Overall: Identity and electrical specifications are substantially correct. The 12-contact row geometry is correct. The footprint has one critical mechanical error: the polarizing/auxiliary hole diameter. Symbol terminal descriptions/types are incomplete but do not change connectivity.

  • Identity and metadata

  • Key datasheet specifications

  • Symbol review

  • Matches

  • Mismatches / missing information

  • Footprint review

  • Matches

  • Critical mismatch

  • Other footprint observations

  • Description and property review

  • Correct

  • Recommended metadata improvements

  • Disposition