Part Audit Review
Thought for 7 sec
I’ll audit the part metadata and existing assets, locate the official datasheet if needed, update the Datasheet property, then cross-check symbol pins and footprint geometry against the manufacturer documentation.
Worked for 4 mins 55 sec
Created a project doc
Part Audit — SML-LXT0805SIUGUBW
Reviewed project/library metadata, schematic terminals, footprint nodes/assets, and the Lumex manufacturer documentation. Existing Datasheet...
Audit completed and documented in Part Audit — SML-LXT0805SIUGUBW. The existing Datasheet URL was retained because it was already populated.
Key mismatches:
- Critical: Footprint pads lack valid geometry/placement and do not render; they do not match Lumex’s four 1.00 × 1.00 mm pad pattern.
- Pin 2 is misleadingly named
ANODE_GREEN; it is the common RGB anode. - Description incorrectly lists green as 468 nm instead of 520 nm.
- Pin descriptions/types and package metadata are incomplete.
An internal part-quality report was filed for review.
Fix metadata and footprint
Update datasheet URL
Correct pin metadata
Repair footprint pads
Run validation review
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Ask about this doc
Part Audit — SML-LXT0805SIUGUBW
Audit scope
Reviewed project/library metadata, schematic terminals, footprint nodes/assets, and the Lumex manufacturer documentation.
Sources
- Existing Datasheet URL property: https://datasheet.datasheetarchive.com/originals/distributors/DKDS-14/273342.pdf
- Official Lumex product page: https://lumex.com/datasheet/SML-LXT0805SIUGUBW.html
- Official Lumex PDF found during verification: https://www.lumex.com/datasheet/files/SML-LXT0805SIUGUBW.pdf
The part already had a Datasheet URL, so it was not changed under the requested conditional update rule.
Current part information
Table
| Field | Current project/library value | Audit result |
|---|---|---|
| MPN | SML-LXT0805SIUGUBW | Matches datasheet |
| Manufacturer | Lumex | Matches datasheet |
| Description | Standard LEDs - SMD SMT 1.25mm X 2.00mm 632nmR,468nmG,468nmB | Mismatch: green wavelength is 520 nm, not 468 nm. Width is shown as 1.30 mm in the datasheet; 1.25 mm is a common 0805 nominal code but not the drawing dimension. |
| Terminal count | 4 | Matches datasheet |
| Mount | Surface Mount | Matches |
| Package or Case Code | SMD | Too generic; datasheet identifies an 0805 / approximately 2.00 × 1.30 × 0.50 mm package. |
| Part Type | Empty | Incomplete; should identify an RGB LED / discrete LED. |
| Datasheet URL | Datasheet Archive PDF | Present and appears to cover the part, but an official Lumex PDF is available. |
Datasheet key specifications
- Device: common-anode RGB surface-mount LED, milky white diffused lens.
- Package body: 2.00 × 1.30 × 0.50 mm.
- Viewing angle: 140°.
- Peak wavelength, R/G/B: 632 / 520 / 468 nm.
- Forward voltage at 20 mA: minimum 1.6 / 2.7 / 2.7 V; maximum 2.4 / 3.9 / 3.9 V.
- Steady forward current: 20 mA per channel.
- Peak forward current: 80 mA per channel, pulse condition t < 10 µs.
- Power dissipation, R/G/B: 72 / 78 / 78 mW.
- Reverse voltage: 5 V at 100 µA.
- Luminous intensity at 20 mA, R/G/B: 45–285 / 112.5–360 / 28.5–180 mcd.
- Operating temperature: −30 to +80 °C.
- Storage temperature: −40 to +85 °C.
- Moisture sensitivity: JEDEC Level 3; ESD-sensitive.
Pin and symbol cross-check
Table
| Pin | Datasheet function | Current terminal name | Result |
|---|---|---|---|
| 1 | Blue cathode | CATHODE_BLUE | Match |
| 2 | Common anode for red, green, and blue | ANODE_GREEN | Electrical pin number/polarity is correct, but the name is misleading. Rename conceptually to COMMON_ANODE or ANODE_RGB. |
| 3 | Red cathode | CATHODE_RED | Match |
| 4 | Green cathode | CATHODE_GREEN | Match |
All four terminals currently have Pin Type = Unspecified and no populated Pin Description. Recommended descriptions are “Blue LED cathode,” “Common RGB anode,” “Red LED cathode,” and “Green LED cathode.” The symbol arrangement places the four pins around the graphic, but the symbol does not explicitly communicate the common-anode topology through terminal naming.
Footprint cross-check
Datasheet recommended land pattern:
- Four square SMD pads, each 1.00 × 1.00 mm.
- 2×2 arrangement.
- Horizontal gap between pad columns: 0.85 mm.
- Vertical gap between pad rows: 0.25 mm.
- Approximate total copper extents: 2.85 × 2.25 mm.
Current project inspection found four pad nodes with the correct logical names/pin mapping, but no explicit pad position, size, shape, or layer data was exposed on those nodes. They appear to inherit the generic pad defaults (1.6 mm circular SMD at position 0), and the flat footprint preview renders the silkscreen body outline but no visible pads. This is a critical footprint mismatch and the part should not be used for PCB manufacturing until the pad geometry is corrected and reverified.
The visible silkscreen outline is approximately 2.00 × 1.30 mm, which is consistent with the package body, but no clear pin-1/polarity marker was confirmed in the rendered preview.
Flagged issues
- Critical: Footprint pad geometry/placement is missing or invalid; pads do not match the manufacturer land pattern and do not render in the footprint preview.
- Major: Pin 2 is mislabeled
ANODE_GREEN; it is the common anode for all three colors. - Major: Description incorrectly states green wavelength as 468 nm; datasheet value is 520 nm.
- Moderate: Pin descriptions and electrical pin types are absent/unspecified.
- Moderate: Package metadata is too generic (
SMD) and omits 0805 / 2.00 × 1.30 × 0.50 mm. - Minor: Current Datasheet URL is not the manufacturer-hosted URL, although it was already populated and therefore was not changed under the request’s condition.
- Minor: No unambiguous pin-1/polarity marker was confirmed in the footprint render.
Disposition
An internal part-quality report was filed for the footprint and symbol metadata problems. No symbol or footprint changes were made as part of this review.
Audit scope
Sources
Current part information
Datasheet key specifications
Pin and symbol cross-check
Footprint cross-check
Flagged issues
Disposition
