Part Review and Data Validation

8:09

Planning tool usage.

Checking if I can make the changes for you.

Reviewing the bill of materials.

Analyzing the PCB layout.

Analyzing the schematic.

Gathering datasheet content.

Running multiple web searches.

Found 10 results.

Found 9 results.

Running multiple web searches.

I reviewed the current part project and compared it against the official ST listing/datasheet URL already present in the project.

Summary

The project already has the official datasheet URL set to ST’s PDF, so there’s no missing Datasheet property to fill in. For part-project audits like this, the key checks are that the datasheet URL is canonical, project property names match Flux’s exact default labels, and the terminal count matches the datasheet exactly, including any exposed pads

What looks correct

Project metadata

Field	Current value	Assessment
Manufacturer Part Number	STL11N3LLH6	Looks correct
Manufacturer Name	STMicroelectronics	Looks correct
Part Type	Transistors	Broadly correct, though MOSFET would be more specific if you want tighter classification
Designator Prefix	Q	Correct for a transistor
Datasheet URL	Official ST PDF	Correct / no update needed
Description	“N-channel 30 V, 6 m typ., 11 A STripFET H6 Power MOSFET in a PowerFLAT 3.3x3.3 package”	Consistent with ST headline specs

Key specs from the official ST source

Type: N-channel STripFET H6 power MOSFET
VDS: 30 V
RDS(on): 6 mΩ typ.
ID: 11 A
Package: PowerFLAT 3.3 x 3.3

Schematic symbol audit

Present terminals

Project terminal	Pin number	Current pin type	Assessment
S_1	1	Unspecified	Exists, but incomplete metadata
S_2	2	Unspecified	Exists, but incomplete metadata
S_3	3	Unspecified	Exists, but incomplete metadata
G	4	Unspecified	Exists, but incomplete metadata
D	5	Unspecified	Exists, but incomplete metadata

Symbol findings

The symbol currently exposes 5 terminals: three source pins, one gate, one drain.
All five terminals have Pin Type = Unspecified.
I do not see pin descriptions populated for these terminals.
For part verification, Flux guidance is to match the datasheet exactly and not leave pin metadata vague when the datasheet defines it

Footprint audit Layout findings

The footprint contains:

Pads for S_1, S_2, S_3, G, and D
Plus three additional footprint pads labeled 6, 7, and 8

Likely mismatch

The schematic symbol models 5 terminals, but the footprint appears to implement 8 copper pads.
That is a possible pin-count mismatch.
Flux’s part-sync guidance is explicit that the terminal count must match the datasheet exactly, including exposed/thermal pads

Because the datasheet text extraction available here did not expose the package figure’s pin legend cleanly, I can’t state with full confidence whether pads 6/7/8 are electrically duplicated source/drain lands or a separate exposed-pad convention. But as it stands, the project should be treated as needs verification.

Flagged issues

Issue	Severity	Notes
All terminal pin types are Unspecified	Medium	Reduces symbol quality/ERC usefulness
Terminal pin descriptions are missing	Medium	Should be short functional labels
Symbol shows 5 terminals while footprint shows 8 pads	High	Possible datasheet/footprint mismatch
Part Type is generic (Transistors)	Low	More specific MOSFET may be better
Package code property is not explicitly present as a dedicated property	Low	Could add PowerFLAT 3.3 x 3.3 / canonical case code

Recommended next fixes

Set project-level properties more explicitly:
- Part Type → MOSFET
- Package or Case Code → PowerFLAT 3.3 x 3.3
Set terminal metadata on S_1, S_2, S_3, G, and D
Verify whether footprint pads 6/7/8 need matching symbol terminals or whether the footprint should be replaced with one whose electrical pad model matches the symbol

I can apply the project property cleanup next. For the symbol/terminal and footprint-side fixes, I’d want to handle those as follow-up edits after we confirm how ST defines pads 6/7/8 in this package.

30 days

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