Part Data Review and Validation
Thought for 1 min 23 sec
I reviewed the part project against the available data and the datasheet-sync criteria. The project already has a
Summary
Datasheet URL, so no web lookup was needed. For part-project verification, the main checks are: exact pin count match, exact pin-number match, datasheet as source of truth, and flagging any missing or ambiguous pin metadataTable
| Category | Status | Notes |
|---|---|---|
| MPN | OK | Project has SM712-02HTG; datasheet result matches exactly. |
| Manufacturer | OK | Project has Littelfuse; datasheet result matches. |
| Datasheet URL | OK | Already present, so no update was required. |
| Package | Mostly OK | Project says SOT-23; datasheet says SOT23-3 / JEDEC TO-236. Functionally consistent, but project metadata is less specific. |
| Pin count | OK | Datasheet says 3 pins; schematic has 3 terminal elements and layout has 3 pads. |
| Footprint | Looks consistent | Layout shows exactly 3 pads, consistent with SOT-23-3. |
| Schematic symbol | Incomplete metadata | Symbol has 3 terminals, but all Pin Type values are Unspecified and no pin descriptions are present. |
| Pin descriptions | Mismatch / missing | Datasheet-based pin behavior exists, but project terminals do not carry pin descriptions. |
| Project description | Needs cleanup | Current description is not aligned with the datasheet’s clearer product description/application wording. |
Table
| Spec | Value |
|---|---|
| Device type | Asymmetrical TVS diode array for RS-485 protection |
| Exact MPN | SM712-02HTG |
| Package | SOT23-3 / JEDEC TO-236 |
| Pin count | 3 |
| Peak pulse power | 600 W |
| Peak pulse current | 19 A at 8/20 µs |
| Reverse standoff voltage | 7.0 V from pin 3 to pin 1 or 2; 12.0 V from pin 1 or 2 to pin 3 |
| Breakdown voltage | 7.5 V / 13.3 V depending on direction |
| Clamp voltage | Up to 31 V at 19 A in one polarity; 19 V in the opposite polarity |
| Operating temperature | -40 °C to +125 °C |
The datasheet-sync guidance says project metadata should use the exact MPN, manufacturer, package, and a clear functional description led by what the part does
Cross-check results
Project properties
- MPN: correct
- Manufacturer Name: correct
- Designator Prefix:
Dis appropriate for a diode device - Package or Case Code: acceptable but should ideally be SOT23-3 rather than the broader SOT-23
- Part Type: currently Diodes, which is usable but not very specific; TVS Diode Array would better match the datasheet-sync guidance to use the functional category from the datasheet
- Description: current text is somewhat inconsistent with the datasheet’s positioning. The datasheet describes the part as an RS-485 protection TVS diode array with asymmetrical working voltages, which is clearer than the current clamp-voltage-only phrasing.
The symbol contains exactly three terminal components:
What matches:
- Pin numbers 1, 2, 3 are present
- Terminal count matches the datasheet pin count exactly, which is a critical requirement
What is missing:
- All three terminals have
Pin Type: Unspecified - No
Pin Descriptionproperties are present - No richer symbol metadata such as section/grouping, though for a 3-pin diode part that is less important than getting pin type and description right
The layout contains:
- a footprint container
- exactly 3 pads, designators 1, 2, 3
That is consistent with the datasheet package being SOT23-3. So at a structural level, the footprint appears to match the package pin count.
Mismatches and flags
Table
| Issue | Severity | Detail |
|---|---|---|
| Package metadata not fully specific | Low | Project says SOT-23; datasheet is more specifically SOT23-3 / TO-236. |
| Part Type too generic | Low | Diodes is broad; datasheet indicates TVS diode array. |
| Project description not ideal | Medium | Current description focuses on clamp values but not the part’s core function. |
| Pin Type missing on all pins | Medium | All terminals are Unspecified, which reduces symbol quality/ERC usefulness. |
| Pin descriptions missing | Medium | No terminal descriptions are present, so the symbol is incomplete from a library-quality standpoint. |
| Pin-name/function cross-check incomplete | Medium | The retrieved datasheet text gave pin-number-based electrical behavior, but not explicit named terminal labels in a clean pin table extract, so I can only verify count and numbering, not exact terminal naming text. |
Table
| Property / Area | Recommended value |
|---|---|
| Part Type | TVS Diode Array |
| Package or Case Code | SOT23-3 |
| Description | RS-485 protection TVS diode array, asymmetrical -7 V to 12 V working range, 600 W, 19 A, SOT23-3 |
| Pin metadata | Add Pin Type and short Pin Description for pins 1, 2, 3 |
- Good: MPN, manufacturer, datasheet presence, 3-pin symbol, and 3-pad footprint are all consistent.
- Needs work: package specificity, part-type specificity, description quality, and especially terminal metadata.
- No hard structural mismatch found between datasheet pin count and the current symbol/footprint.
- Main mismatch is completeness, not geometry: the part is missing useful pin typing/description data expected for a polished part project
Generate pin metadata
Tighten part metadata
List all mismatches
