please fix this flag issue, "Part audit found critical issues: schematic assigns pin 1=+ and pin 2=-, but the datasheet's positive-side locator hole is adjacent to footprint pad 2, indicating reversed polarity mapping."
The project represents the Keystone Electronics 1024TR, a single-cell AA surface-mount battery holder supplied on tape and reel. The official manufacturer drawing is already linked, so no missing datasheet URL had to be added.
Pass; manufacturer name could be made more explicit
Description
Battery Contacts AA Battery HOLDER SMT
Single-cell AA SMT battery holder, tape-and-reel
Broadly correct but incomplete
Mount
Surface Mount
SMT
Pass
Pin/contact count
2
Two electrical contacts
Pass
Datasheet URL
http://www.keyelco.com/product-pdf.cfm?p=936
Official Keystone drawing
Pass, but HTTPS is preferred
Part Type
Integrated Circuits
Battery holder / battery contact
Mismatch
Designator prefix
U
Battery-holder designator such as BT/BH is more appropriate
Mismatch
Package / case property
Not set
Custom AA SMT holder footprint
Missing metadata
Key manufacturer specifications
Holds one AA cell (ANSI 15A / IEC LR6 family).
Surface-mount holder; 1024TR is the tape-and-reel ordering variant.
Base: heat-resistant nylon, UL 94 V-0 per product information.
Contacts: 0.30 mm thick stainless steel, gold flash over nickel.
Overall body: approximately 69.15 mm long × 15.54 mm wide × 14.86 mm high.
Recommended terminal land size: 6.35 mm × 7.34 mm minimum, two places.
Positive-side locator hole: 1.98 mm diameter, associated with a 1.27 mm locator leg.
General drawing tolerance: ±0.25 mm, angular ±1°.
Tape-and-reel packaging: 200 pieces per 13-inch reel.
The official drawing does not state a specific current or voltage rating.
Schematic symbol cross-check
The symbol has two terminals labeled + and -, which is appropriate for a polarized battery holder. However:
Both pins have Pin Type = Unspecified rather than Passive/Power-type semantics.
Neither pin has a human-readable Pin Description.
The electrical numbering is shown as pin 1 for + and pin 2 for -, but the footprint orientation does not agree with that assignment (see below).
The symbol uses generic terminal primitives and has no battery-holder body graphic. This is electrically usable but weak for identification.
Recommended pin descriptions:
Pin 1: Positive AA battery contact (+)
Pin 2: Negative AA battery contact (-)
Footprint cross-check
The embedded KiCad footprint source contains:
Pad 1 at (0, +31.105 mm), size 6.35 × 7.34 mm.
Pad 2 at (0, -31.105 mm), size 6.35 × 7.34 mm.
Locator hole MH1 at (6.73, -27.435 mm), diameter 1.98 mm.
Fabrication outline approximately 59.93 × 15.24 mm.
Courtyard approximately 71.55 × 17.62 mm.
Confirmed footprint mismatch: polarity mapping
The official drawing places the locator feature at the positive end. In the footprint source, the locator hole is adjacent to pad 2, while the schematic defines pin 2 as -. Therefore the footprint currently maps the datasheet's positive end to the schematic negative terminal. This is a critical polarity mismatch that could reverse the battery connections on the assembled PCB.
Potential footprint mismatch: terminal spacing
The footprint pad centers are 62.21 mm apart, giving an outer land span of 68.56 mm. The official mounting-pad drawing calls out 69.55 mm minimum across the terminal-land layout. If that dimension is interpreted across the outside edges of the two lands, the existing footprint is approximately 0.99 mm short. This should be resolved directly from the drawing geometry before release.
Flux geometry/import anomaly
The structured PCB nodes report the pad coordinates and sizes at 1/1000 of the values embedded in the KiCad footprint (for example, 0.00635 mm instead of 6.35 mm). The embedded footprint text itself contains plausible millimeter dimensions. This suggests a unit-scaling/import anomaly in the computed footprint representation and should be visually and dimensionally checked in the editor before use.
Recommended disposition
Do not use this part for manufacturing as-is. Correct the part classification and designator metadata, add pin descriptions/types, fix the pad-to-polarity mapping, verify the official terminal spacing, and resolve the apparent 1000× footprint scaling anomaly. After corrections, compare the 3D model, pad centers, locator hole, body outline, and courtyard against the official Keystone drawing.