Part Datasheet Review and Cross-Check

Thought for 2 mins 9 sec

Review complete

The part already has a datasheet URL set, so step 2 was not needed. I used the existing PDF: Datasheet

1) Available part information in this project Project metadata

Table

Field	Value
Part name	MULTICOMP PRO SPC21348
Manufacturer	Multicomp
MPN	SPC21348
Description	Phone Audio Connector, Jack, 3.5 mm, Silver Plated Contacts, Plastic Body
Datasheet	Datasheet
Mounting/package style	Horizontal, PCB-mount audio jack
Electrical terminals in project	5
Schematic terminals present	1, 2, 3, 10, 11

Schematic/part implementation observed

Table

Item	Observed
Symbol style	Built from 5 generic terminals
Pin names	Not defined
Pin types	All `Unspecified`
Pin numbers used in project	1, 2, 3, 10, 11
Nets	None defined yet
Footprint pads present	5 pads

3) Datasheet scan summary Core metadata from datasheet

Table

Parameter	Datasheet value
Part family	3.5 mm Horizontal Audio Jacks
Included part numbers	SPC21348, SPC21349, SPC21350
Product style	Horizontal audio jack
Mounting indication	PCB layout shown, so PCB mount
Dimensions units	Millimetres

Electrical / performance characteristics

Table

Characteristic	Datasheet value
Contact resistance	30 mOhm max.
Dielectric strength	500 V AC
Insulation resistance	100 MOhm min. @ 500 V DC
Insertion force	0.3-2.0 kg
Withdrawal force	0.3 kg to 2 kg
Operating life	5,000 cycles

Absolute maximum ratings

Table

Result	Notes
Not provided as a section	No explicit “Absolute Maximum Ratings” section was found in the datasheet content retrieved

Recommended operating conditions

Table

Result	Notes
No explicit recommended-operating-conditions table found	The document is primarily mechanical/specification-oriented rather than semiconductor-style parametric

Terminal / pin function information from datasheet

Table

Datasheet terminal ID	Function
3	Sleeve
4	Shunt Terminal-B
5	Shunt Terminal-A
6	Ring
7	Tip

Materials / construction

Table

Item	Datasheet value
Bushing	Brass, nickel plated
Housing	PBT
Springs	Phosphor bronze, silver plated
Terminal	Brass, silver plated
Tip	TiCu, silver plated

Package / mechanical information

Table

Result	Notes
Mechanical drawing present	Yes
PCB layout present	Yes
Exact numeric geometry extracted cleanly	No, the search results confirmed the drawing exists but did not return readable dimensional values beyond units

Special features

Table

Feature	Evidence
3.5 mm jack format	Datasheet title/family
Horizontal orientation	Datasheet title
PCB mount	PCB layout shown
Switched contacts	Presence of Shunt Terminal-A and Shunt Terminal-B
Silver-plated contact system	Project description + materials table

4) Cross-check: symbol and footprint vs datasheet Cross-check results

Table

Check	Status	Risk
Terminal count	Pass	Project has 5 electrical terminals, matching datasheet terminal set
Pin numbering	Fail	Datasheet uses 3, 4, 5, 6, 7 for electrical terminals, but project uses 1, 2, 3, 10, 11
Pin naming	Fail	Project symbol terminals are unnamed; datasheet defines Sleeve / Shunt-B / Shunt-A / Ring / Tip
Pin typing	Warning	All pins are `Unspecified`; not fatal for manufacturing, but poor for reuse/clarity
Functional mapping	Unknown / high risk	No verified one-to-one mapping from project pins to datasheet functions
Footprint pad count	Pass	5 pads present, consistent with electrical terminal count
Footprint geometry	Not fully verifiable from extracted text	Datasheet has a PCB layout drawing, but exact hole locations/drills were not machine-extracted here

Critical issues to flag High-risk mismatch

Table

Issue	Why it matters
The project pin numbers do not match the datasheet terminal numbering	This can cause incorrect schematic-to-footprint pin mapping, wrong net assignment, and a board that routes Tip/Ring/Sleeve/shunt contacts incorrectly
Symbol pins are unnamed	A user cannot reliably tell which terminal is Tip, Ring, Sleeve, or shunt contact
Switched-contact jack behavior is not captured explicitly	Miswiring the shunt terminals can break jack-detect or default-signal routing behavior

Bottom line

Table

Conclusion	Result
Safe to manufacture as-is?	Not yet
Main reason	The pin-numbering and functional mapping are not aligned to the datasheet
Most likely failure mode	Correct footprint count but wrong electrical connectivity/order

Recommended correction target

The final part should expose five clearly named pins mapped to the datasheet functions:

Sleeve
Shunt Terminal-B
Shunt Terminal-A
Ring
Tip

And the symbol/footprint pin numbers should match the datasheet numbering exactly: 3, 4, 5, 6, 7.

Check exact pin mapping

Create proper component

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