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.
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 | |
| 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 |
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 |
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 |
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 |
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. |
- 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
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