Part Audit Review
Thought for 6 sec
I’ll audit the part metadata, locate the official manufacturer documentation if needed, then cross-check the symbol, footprint, and terminal descriptions and correct only the Datasheet property if it is missing.
Worked for 4 mins 56 sec
Created a project doc
Part Audit Report
Part Audit Report
Scope
Audit of Molex 504050-0291 metadata, official documentation, schematic symbol, terminal descriptions, and PCB footprint.
Official sources
- Molex product page: https://www.molex.com/en-us/products/part-detail/5040500291
- Molex customer drawing (currently assigned Datasheet URL): https://www.molex.com/pdm_docs/sd/5040500291_sd.pdf
- Molex product specification: https://www.molex.com/content/dam/molex/molex-dot-com/products/automated/en-us/productspecificationpdf/504/504051/PS-504051-001-001.pdf?inline=
- Manufacturer: Molex
- MPN: 504050-0291 / numeric ordering number 5040500291
- Series/function: Pico-Lock 1.5 wire-to-board PCB header
- Configuration: male, single row, 2 circuits, right-angle, surface mount, positive...
Audit complete. The official Molex datasheet URL was already set, so no update was required; the footprint dimensions match the recommended 1.50 mm-pitch land pattern.
Key mismatches: the canonical Part Type appears blank, terminal descriptions/types are missing, and pads 3–4 are mechanical hold-down nails but are represented as ordinary electrical pins. Full specifications and findings are in Part Audit Report.
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Part Audit Report
Scope
Audit of Molex 504050-0291 metadata, official documentation, schematic symbol, terminal descriptions, and PCB footprint.
Official sources
- Molex product page: https://www.molex.com/en-us/products/part-detail/5040500291
- Molex customer drawing (currently assigned Datasheet URL): https://www.molex.com/pdm_docs/sd/5040500291_sd.pdf
- Molex product specification: https://www.molex.com/content/dam/molex/molex-dot-com/products/automated/en-us/productspecificationpdf/504/504051/PS-504051-001-001.pdf?inline=
Identity and key specifications
- Manufacturer: Molex
- MPN: 504050-0291 / numeric ordering number 5040500291
- Series/function: Pico-Lock 1.5 wire-to-board PCB header
- Configuration: male, single row, 2 circuits, right-angle, surface mount, positive lock, shrouded/polarized
- Pitch: 1.50 mm mating and termination pitch
- Mated height: 2.00 mm
- Packaging: embossed tape and reel, 2700 pieces/reel
- Voltage rating: 150 V AC RMS or DC maximum
- Current rating for 3–4 circuit family column: 3.0 A/pin with AWG 24, 2.5 A with AWG 26, 2.0 A with AWG 28 or 30, and 1.5 A with AWG 32. The part is 2 circuits; the product-specification table gives the 2-circuit ratings as 3.5 A, 3.0 A, 2.5 A, 2.5 A, and 2.0 A respectively.
- Operating temperature: -40 °C to +105 °C, including temperature rise from current
- Initial contact resistance: 20 mΩ maximum
- Insulation resistance: 1000 MΩ minimum at 500 VDC
- Dielectric withstand: 500 VAC RMS for 1 minute, no damage
- Durability: 30 mating cycles
- Housing: black PA/high-temperature thermoplastic, UL94 V-0
- Contacts: copper alloy, nickel underplate 1.0 µm minimum, mating gold 0.1 µm minimum; solder tails gold plated
- Hold-down nails: copper alloy, nickel underplate 1.0 µm minimum, tin 1.0 µm minimum
- Mates with: Molex 504051**** receptacle housing family
Metadata review
Table
| Field | Current value | Assessment |
|---|---|---|
| Project name | 504050-0291 | Correct |
| Manufacturer Part Number | Mixed sources show 5040500291 and 504050-0291 | Equivalent ordering number formatting; library record uses hyphenated MPN |
| Manufacturer Name | Molex | Correct |
| Datasheet URL | Official Molex customer drawing URL | Correct and already set; no update required |
| Mount | Surface Mount | Correct |
| Part Type | Conflicting readback: project search reports Connector, library property/check reports blank | Mismatch: canonical published property appears blank and should be set to Connector |
| Description | Headers & Wire Housings 1.5MM PicoLock SMT HDR RA POS SIDLCK 2P | Functionally correct but distributor-style and abbreviated; official description is clearer |
| Package | No Package property | Acceptable for a custom connector footprint, though a package/series label such as Pico-Lock 1.5 RA SMT 2-circuit would improve discoverability |
| Lifecycle | Active | Consistent with library data |
Schematic symbol and pin review
The part has four terminals, but the connector has only two electrical circuits. Pins/pads 1 and 2 are signal contacts; pads 3 and 4 are mechanical hold-down nails.
Table
| Pin | Current symbol data | Datasheet role | Assessment |
|---|---|---|---|
| 1 | Name 1, Pin Type Unspecified, no description | Circuit 1 electrical contact | Number is correct; description and electrical/passive type are missing |
| 2 | Name 2, Pin Type Unspecified, no description | Circuit 2 electrical contact | Number is correct; description and electrical/passive type are missing |
| 3 | Name 3, Pin Type Unspecified, no description | Mechanical solder hold-down nail | Mismatch: represented as an ordinary electrical pin with no mechanical description |
| 4 | Name 4, Pin Type Unspecified, no description | Mechanical solder hold-down nail | Mismatch: represented as an ordinary electrical pin with no mechanical description |
Additional symbol findings:
- The rendered custom symbol shows four connection points but lacks clear labels/functions.
- No Section, Pin Group, Pin Orientation, or Terminal Order metadata is set.
- The symbol positions are slightly vertically asymmetric (
+7.5and-6.5). - Recommended descriptions: pin 1
Circuit 1 contact; pin 2Circuit 2 contact; pins 3/4Mechanical hold-down / solder nail (no electrical connection). - If Flux requires hold-down pads as terminals for pad mapping, keep pins 3/4 but mark them mechanical/passive or excluded from electrical checks as supported; do not imply they are additional circuits.
Footprint cross-check
The footprint contains four top-layer rectangular SMT pads:
- Electrical pads 1 and 2: 0.60 × 1.00 mm, centers at x = ±0.75 mm, giving 1.50 mm pitch.
- Hold-down pads 3 and 4: 1.25 × 1.80 mm, centers at x = ±3.38 mm and y = 5.19 mm in the footprint coordinate system.
These dimensions match the official recommended pattern callouts: 0.60 ±0.05 mm × 1.00 ±0.05 mm for contact lands, 1.25 ±0.05 mm × 1.80 ±0.05 mm for nail lands, and 1.50 ±0.05 mm contact pitch. The hold-down spacing is consistent with the 6.75 mm overall A dimension (±3.375 mm nominal). Fab and silkscreen outlines are consistent with a right-angle connector body. No footprint dimensional mismatch was identified from the available readback.
Flagged mismatches and recommended corrections
- Part Type is blank in the canonical library property/check despite another indexed view reporting Connector. Set it explicitly to
Connector. - Symbol terminal count can be misleading: four terminals are present for a 2-circuit connector. Pins 3 and 4 are mounting nails, not electrical circuits.
- All terminal descriptions are missing. Add datasheet-backed roles for the two contacts and two nails.
- All Pin Types are Unspecified. Set contacts to the appropriate passive connector type and mounting nails to mechanical/no-connect/excluded behavior supported by Flux.
- Symbol labeling is poor. The custom symbol does not clearly distinguish contacts from hold-downs.
- Package property is absent. Not a geometry error, but adding a descriptive package/series value would improve part search and reuse.
Overall conclusion
The assigned official datasheet URL is valid and the PCB land pattern matches the Molex recommended footprint dimensions. The primary issues are metadata and symbol semantics: the published Part Type appears unset, pin descriptions/types are missing, and the two mechanical hold-down pads are presented like ordinary electrical pins.
Scope
Official sources
Identity and key specifications
Metadata review
Schematic symbol and pin review
Footprint cross-check
Flagged mismatches and recommended corrections
Overall conclusion
