Part Metadata Review and Update

2:37

Analyzing the schematic.

Reviewing the bill of materials.

Analyzing the PCB layout.

Planning.

Looking for "product description, series, number of positions, pitch, mounting style, orientation, mating direction, contact style" in eGH.pdf

Looking for "materials and finish, current rating, voltage rating, contact resistance, insulation resistance, dielectric withstanding voltage, temperature range" in eGH.pdf

Looking for "absolute maximum ratings or maximum current voltage temperature limits" in eGH.pdf

Looking for "recommended operating conditions and applicable printed circuit board thickness or usage conditions" in eGH.pdf

Looking for "pin assignments, circuit number mapping, terminal numbering, boss or hold-down tab information" in eGH.pdf

Looking for "recommended pcb layout, land pattern, pad dimensions, pitch, overall connector dimensions" in eGH.pdf

Looking for "features, special notes, standards, packaging, reflow or soldering guidance" in eGH.pdf

Looking for "mechanical dimensions for SM10B-GHS-TB(LF)(SN), A B C dimensions, side entry or top entry, height, width, depth" in eGH.pdf

Review.

Part audit complete

1) Available part information

Field	Result
Project name	SM10B-GHS-TB_LF__SN_
Manufacturer	JST
MPN	SM10B-GHS-TB(LF)(SN)
Part type	Connector
Mount	Surface Mount
Description	Connector Header Surface Mount, Right Angle, 10 position, 1.25 mm pitch
Datasheet URL present	Yes
Datasheet source used	PDF
Functional family from datasheet	GH series, wire-to-board, crimp style, side-entry / top-entry family
Position count for this MPN	10 circuits
Schematic implementation	12 separate terminals total: 10 signal circuits + 2 reinforcement tabs
Footprint asset	SM10BGHSTBLFSN.kicad_mod
3D model asset	SM10B-GHS-TB.STEP

2) Datasheet URL status

A datasheet URL was already set, so no web lookup or property update was required.

3) Datasheet scan summary

Product metadata

Parameter	Datasheet value
Series	GH CONNECTOR
Connector type	Wire-to-board, crimp style
Header style	SMT, side entry type
Pitch	1.25 mm
Circuits	10
Locking	Secure locking function / large outer latch
Compliance	RoHS2
Packaging	Embossed taping, 2,500 headers per reel

Electrical characteristics

Parameter	Datasheet value
Current rating	1.0 A AC/DC (AWG #26)
Voltage rating	50 V AC/DC
Contact resistance, initial	30 mΩ max.
Contact resistance, after test	50 mΩ max.
Insulation resistance	100 MΩ min.
Dielectric withstanding voltage	500 VAC for one minute, no breakdown or flashover

Absolute maximum style limits available in datasheet

This connector datasheet does not present a separate semiconductor-style “Absolute Maximum Ratings” table. The practical published limits are:

Table

Limit	Datasheet value
Maximum rated current	1.0 A AC/DC
Maximum rated voltage	50 V AC/DC
Temperature range	-40°C to +105°C

Recommended operating / application conditions

Item	Datasheet value
Operating temperature range	-40°C to +105°C
Intended use	Internal connections in electrical/electronic equipment for high density applications
PCB pattern pitch tolerance	±0.05 and shall not accumulate
PCB layout note	Layout is viewed from the connector mounting surface

Pin / circuit information

Item	Datasheet value
Circuit numbering	No. 1 circuit is explicitly identified
Circuit count to header mapping	10 circuits -> SM10B-GHS-TB
Reinforcement tabs	Header material list includes reinforcement: copper alloy, tin-plated
Contact family	SSHL-002T-P0.2
Applicable wire	AWG #30 to #26, insulation O.D. 0.76 to 1.0 mm

Pin descriptions

This datasheet does not provide unique electrical pin names beyond circuit numbering. For this part, the meaningful descriptions are:

Table

Pin class	Meaning
Circuits 1-10	Signal/contact positions of the 10-circuit header
Reinforcement tabs	Mechanical hold-down / solder anchor tabs

Mechanical / package dimensions

Parameter	Datasheet value
Entry style	Side entry
A dimension for 10 circuits	11.25 mm
B dimension for 10 circuits	15.75 mm
Height	5.7 mm
Depth figures shown	4.25 mm / 4.05 mm
PCB land width for signal pads	0.6 ±0.05 mm
Pitch	1.25 ±0.05 mm
Mechanical tab pad width	1.0 ±0.1 mm
Signal pad length figure shown	1.35 ±0.1 mm
Side-entry layout dimensions shown	2.7 ±0.1 mm, 3.7 ±0.1 mm, 5.4 ±0.1 mm

Special features / notes

Feature	Datasheet note
Mating security	Secure lock mechanism
Anti-mismatch	Housing designed to prevent incorrect mating
Contact protection	Structured to prevent contact deformation
Finish	Tin-plated copper alloy contacts
Resin materials	Housing: PBT; header base housing: heat-resistant PA
Important note	Specifications registered to overseas standards may differ from general specifications

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

Match assessment

Area	Result	Notes
MPN	Pass	Project MPN matches datasheet part family and 10-circuit side-entry header.
Position count	Pass	10 signal circuits are present.
Mechanical tabs included	Pass	2 extra SMT pads exist and align with reinforcement tabs.
Footprint pitch	Pass	Footprint uses 1.25 mm pitch for pads 1-10.
Signal pad width	Pass	Footprint uses 0.600 mm, matching datasheet.
Mechanical tab pad width	Pass	Footprint uses 1.000 mm, matching datasheet.
Side-entry geometry	Pass	Footprint dimensions align with side-entry style, not top-entry style.
Datasheet orientation note	Needs care	Datasheet layout is viewed from mounting surface; footprint appears consistent, but this is a common source of mirrored footprints if manually recreated.
Symbol pin metadata	Issue	Pin names/descriptions are effectively undefined in the current schematic representation.
Symbol structure	Issue	The part is represented as separate terminal elements rather than one unified connector symbol.
Electrical pin typing	Issue	All pins are marked Unspecified.
Designator consistency	Minor issue	Project designator prefix is J, while internal terminal elements show P prefix metadata.

Issues that should be flagged

Severity	Finding	Risk
High	The schematic symbol is not a conventional single 10-pin connector symbol; it is split into separate terminal elements plus two mounting tabs.	Easier to miswire, harder to review, and higher risk of pin-order mistakes during reuse.
Medium	Pin names are undefined and pin types are unspecified.	ERC quality is reduced; users may connect the wrong circuit because only numbers are visible.
Medium	Reinforcement tabs are present, but they are not clearly differentiated as mechanical-only in the symbol metadata.	A user could mistakenly treat them as signal pins in the part definition workflow.
Low	Designator-prefix metadata is inconsistent between project-level connector identity and internal terminal elements.	Mostly a library cleanliness issue, but can create confusion in generated symbols/docs.

Manufacturing-risk conclusion

Category	Conclusion
Wrong part ordered	Low risk if the MPN is used directly, because the MPN and package family align.
Footprint manufacturing failure	Low risk based on the extracted pad geometry; the footprint appears consistent with the datasheet side-entry land pattern.
Board assembly / fit issue	Low risk from the footprint itself, assuming the side-entry orientation is what you intended.
Board failure due to symbol mismatch	Medium risk at the design-entry stage, because the symbol metadata is weak and can enable wiring mistakes.

Bottom line

The footprint looks consistent with the JST datasheet for SM10B-GHS-TB(LF)(SN).
The main problems are symbol quality and metadata quality, not the copper land pattern.
The biggest improvements would be:
- Convert the symbol into one unified 10-circuit connector symbol
- Mark the 2 reinforcement tabs as mechanical / non-signal
- Give pins explicit names/descriptions
- Set appropriate pin electrical types

If you want, I can next check whether I’m able to clean up the part metadata and symbol structure for this part project.

@file inspect pin mapping

Create cleaner connector

Check part metadata

44 days

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