Part Information Review

Thought for 2 mins 12 sec

I reviewed the current part project against the existing datasheet URL and the part-project verification workflow, which recommends treating the datasheet as the source of truth and checking exact project properties and pin metadata before making updates

Datasheet status

Datasheet URL already exists, so no web update was needed.
Current URL: PDF
Note: this is a DigiKey-hosted mirror, not a clearly official manufacturer-hosted URL. A quick web check did not find a clean current onsemi/Motorola product-page PDF, so I left the existing URL unchanged.

Datasheet-derived reference Key part facts

Table

Field	Datasheet
Part	2N5306
Description	NPN Darlington Transistor
Manufacturer shown in PDF	Fairchild Semiconductor
Package	TO-92
Pin count	3
Pinout	1 = Emitter, 2 = Collector, 3 = Base

Key specs

Table

Spec	Value
VCEO	25 V
VCBO	25 V
VEBO	12 V
IC continuous	1.2 A
Power dissipation	625 mW
Junction/storage temp	-55 to +150 °C
DC gain hFE	7000 min, 20000 typ, 70000 max
VCE(sat) @ 200 mA	1.4 V max
VBE(sat) @ 200 mA	1.6 V max
Ccb	10 pF max
fT	Not explicitly given in the retrieved datasheet text

Current project review Project properties

Table

Property	Current value	Status
Manufacturer Part Number	2N5306	Match
Datasheet URL	Set	Present
Part Type	Transistors	Acceptable
Designator Prefix	U	Mismatch for a transistor part
Manufacturer Name	Missing	Missing
Package or Case Code	Missing	Missing
Description	`2N5306`	Too minimal
Extra unnamed property	Present in indexed data	Suspicious / should be checked

Symbol cross-check Current terminals

Table

Terminal	Current pin number	Datasheet pin number	Result
EMITTER	1	1	Match
COLLECTOR	2	2	Match
BASE	3	3	Match

Symbol findings

Pin count is correct: 3 pins.
Pin numbering is correct.
Terminal naming is correct.
All three terminal components currently have Pin Type = Unspecified.
No explicit per-pin descriptions are present beyond the names.

Footprint cross-check

Table

Item	Current project	Datasheet	Result
Footprint / package intent	`2N5306.kicad_mod`, 3D model `TO-92_ONS.step`	TO-92	Likely match
Pad count	3	3	Match
Pad names	EMITTER / COLLECTOR / BASE	Emitter / Collector / Base	Match by function

Footprint findings

Package family appears consistent with the datasheet: TO-92.
Pad names align with terminal names and datasheet function names.
I did not see explicit numeric pad numbers exposed in the layout metadata, so I could not independently verify pad 1/2/3 numbering inside the footprint metadata itself.
So: footprint looks consistent, but numeric pad-number exposure is incomplete in the returned layout data.

Pin description check

Table

Item	Status
Pin names	Present and correct
Pin descriptions	Missing
Pin types	Unspecified for all three

Mismatches and issues flagged

Table

Severity	Issue	Notes
High	`Designator Prefix = U`	For a transistor part, this should typically be Q
Medium	`Manufacturer Name` missing	Datasheet identifies Fairchild Semiconductor
Medium	`Package or Case Code` missing	Datasheet package is TO-92
Medium	Description too short	`2N5306` is not descriptive enough
Low	Pin descriptions missing	Functional names exist, but no explicit descriptions
Low	Pin types all `Unspecified`	Incomplete metadata, though not a pinout mismatch
Low	Possible empty/unnamed property	Should be inspected and cleaned up if real

Bottom line

Pinout: matches the datasheet.
Symbol: functionally correct.
Footprint: appears consistent with TO-92 and the named terminals.
Main metadata gaps: designator prefix, manufacturer name, package field, richer description, and pin metadata completeness.

If you want, I can fix the flagged metadata next:

set Designator Prefix to Q
add Manufacturer Name = Fairchild Semiconductor
add Package or Case Code = TO-92
improve the description
add pin descriptions / pin types for EMITTER, COLLECTOR, and BASE

Fix flagged metadata

Use official datasheet

Verify footprint numbering

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