Part Metadata Review and Update

flux

I’ll audit the part metadata, find and attach the official datasheet if missing, then compare symbol/footprint/pin data against the datasheet and report any mismatches.
Created a project doc
QSH-020-01-L-D-DP-A Part Audit
Date: 2026-07-08 Reviewed available project metadata, schematic terminals, PCB footprint geometry, and official Samtec datasheet/product inf...
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flux

Completed the part audit and created the full report here: QSH-020-01-L-D-DP-A Part Audit.
Open items flagged:
  • Package or Case Code = TO is incorrect for this Samtec QSH-DP SMT connector.
  • Pin descriptions and pin types are missing/unspecified.
  • MP1–MP4 should be documented as ground/shield solder pads.
  • Datasheet URL was already present, so I did not overwrite it.
Suggested next steps:
  1. Ask me to apply the metadata/pin-description cleanup.
  2. Ask me to switch the Datasheet URL to the direct official PDF.
  3. Ask me to verify exact pad-number orientation against the Samtec print before production.
Clean metadata and verify
Fix flagged metadata
Use direct datasheet
Check pad orientation
Run ERC/DRC

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Ask about this doc
QSH-020-01-L-D-DP-A Part Audit
Date: 2026-07-08
Scope
Reviewed available project metadata, schematic terminals, PCB footprint geometry, and official Samtec datasheet/product information for the published part project QSH-020-01-L-D-DP-A.
Project Metadata Found

Table

FieldCurrent project valueDatasheet / official source check
Manufacturer Part NumberQSH-020-01-L-D-DP-AMatches Samtec ordering code
Manufacturer NameSamtecMatches official source
DescriptionBoard to Board & Mezzanine Connectors 0.50 mm Q Strip High-Speed Ground Plane Socket StripMatches product family/function
Datasheet URLhttps://www.samtec.com/products/qsh-dpAlready present; not changed because the task only requested updating when missing
Part TypeConnectorsFunctionally correct, though canonical singular Connector would be cleaner
Designator PrefixJCorrect for connector
MountSocketDescribes mating gender/style, but Surface Mount would better describe PCB mounting technology
Package or Case CodeTOMismatch: this is not a TO package. It should describe the Samtec QSH-DP surface-mount socket/receptacle footprint
Official Documents Used
Key Datasheet Specs

Table

ParameterValue
SeriesQSH-DP / Q Strip / Q Pairs high-speed ground-plane socket strip
Pitch0.50 mm / .0197 in
Configuration-020, -01 lead style, -L plating, -D double row, -DP differential pair, -A alignment pins
Signal contacts represented40 signal contacts in the project: pins 1-40
Extra SMT ground/shield pads represented4 pads in the project: MP1-MP4
Alignment holes represented2 NPTH holes in footprint: MH1, MH2
Contact pad size from footprint PDF0.28 mm x 2.27 mm SMT pads
Ground/shield pad sizes from footprint/footprint asset0.43 mm x 2.54 mm for MP1/MP4; 0.43 mm x 4.70 mm for MP2/MP3
Alignment holes for -A option1.02 mm NPTH typical
Plating option -L10 uin / 0.25 um Au on contact, matte tin on tail
Current ratingSignal: 2 A; catalog also lists 25 A per ground plane when one ground plane is powered
Voltage rating175 VAC / 247 VDC catalog value
Withstanding voltage525 VAC
Insulation resistance5,000 Mohm result / 1,000 Mohm minimum requirement noted
Contact resistanceDelta 15 mohm maximum
Temperature range-55 C to +125 C
High-speed guidance50 ohm single-ended / 100 ohm differential; product spec lists 9.5 GHz / 19 Gbps single-ended and 10.5 GHz / 21 Gbps differential based on 3 dB insertion loss
ReflowLead-free compatible, IPC/JEDEC J-STD-020, 260 C peak, max 3 reflow passes
Schematic Symbol Check
Project symbol content:
  • Schematic contains 44 terminal components: signal/contact terminals 1 through 40, plus MP1 through MP4.
  • Each terminal has Pin Number matching its designator.
  • Pin type is currently Unspecified for every terminal.
  • No Pin Description properties are populated.
Assessment:
  • Pin count is consistent with a footprint using 40 signal contacts plus 4 ground/shield SMT pads.
  • Generic signal pins are acceptable because Samtec does not assign application-specific signal names; the connector pin functions are user-defined by the mating PCB/application.
  • The ground/shield pads should not be left semantically indistinguishable from signal contacts. MP1-MP4 should be described as ground plane / shield / mounting solder pads and have a passive or ground-related pin type depending on intended electrical connection.
Footprint Check
Footprint asset found in the project: QSH02001LDDPA.kicad_mod.
Extracted footprint geometry from the embedded KiCad module:
  • Pads 1-40: SMT rectangular pads, 0.280 mm x 2.270 mm.
  • Pad rows at y = +/-2.87 mm.
  • Signal pad x positions: -7.000, -6.500, -5.500, -5.000, -4.000, -3.500, -2.500, -2.000, -1.000, -0.500, 0.500, 1.000, 2.000, 2.500, 3.500, 4.000, 5.000, 5.500, 6.500, 7.000 mm, mirrored across the two rows.
  • MP1: 0.430 mm x 2.540 mm at x = -8.065 mm.
  • MP2: 0.430 mm x 4.700 mm at x = -3.175 mm.
  • MP3: 0.430 mm x 4.700 mm at x = 3.175 mm.
  • MP4: 0.430 mm x 2.540 mm at x = 8.066 mm.
  • MH1/MH2: 1.02 mm NPTH holes at approximately x = -9.810 mm and x = 10.331 mm, y = -2.67 mm.
Assessment:
  • The main SMT signal pad size, shield/ground pad dimensions, and -A alignment-hole diameter match the official recommended-footprint values extracted from Samtec.
  • The footprint includes the 40 signal pads, 4 MP pads, and 2 NPTH alignment holes expected for this variant.
  • Pad numbering alternates between the two long rows in the embedded footprint. This should be checked against the exact Samtec print orientation before production if orientation-critical mating net assignments will be made.
Mismatches / Issues Flagged
  1. Package or Case Code is incorrect: current value is TO, but this connector is a Samtec QSH-DP surface-mount board-to-board socket/receptacle, not a TO package.
  2. Pin descriptions are missing: all terminals lack Pin Description; MP pads in particular should be documented as ground/shield/ground-plane solder pads.
  3. Pin types are unspecified: all 44 schematic terminals are Unspecified; signal contacts can be passive/signal, while MP pads should be passive or ground-related if they are intended to connect to ground.
  4. Mount property is ambiguous: current value Socket describes connector gender/function, not PCB mount style. The datasheet footprint is surface mount with alignment pins.
  5. Datasheet URL points to series/product page, not direct PDF: already present and official, so it was not changed under the requested condition. Direct official PDFs are listed above for future refinement.
  6. Part Type uses plural Connectors: functional but less canonical than Connector.
  • Change Package or Case Code from TO to QSH-DP SMT socket footprint or similar.
  • Add/update connector properties: Connector Type = Board-to-Board / Mezzanine, Connector Gender = Socket/Receptacle, Connector Pitch = 0.5 mm, Connector Rows = Double row / DP ground-plane arrangement, Connector Positions = 40 signal contacts + 4 ground/shield pads.
  • Add pin descriptions:
    • Pins 1-40: User-defined signal contact or similar.
    • MP1-MP4: Ground plane / shield SMT solder pad.
  • Set pin types consistently: signal contacts as Passive or Signal; MP pads as Passive unless intentionally tied to a ground net in usage.
  • Consider changing Datasheet URL to the official product spec PDF or adding Product Info Url for the Samtec product page while keeping direct PDFs accessible.

  • Scope

  • Project Metadata Found

  • Official Documents Used

  • Key Datasheet Specs

  • Schematic Symbol Check

  • Footprint Check

  • Mismatches / Issues Flagged

  • Recommended Cleanup Edits

Documents

  • QSH-020-01-L-D-DP-A Part Audit

Assets

image2.png

image2.png

image2Thumbnail
stp

QSH-020-01-L-D-DP-A

QSH-020-01-L-D-DP-A.stp3D Model
QSH-020-01-L-D-DP-A

QSH-020-01-L-D-DP-A

QSH-020-01-L-D-DP-A Symbol.svgDefault
kicad_mod

QSH-020-01-L-D-DP-A

QSH02001LDDPA.kicad_modFootprint

QSH-020-01-L-D-DP-A

QSH-020-01-L-D-DP-A thumbnail
Board to Board & Mezzanine Connectors 0.50 mm Q Strip High-Speed Ground Plane Socket Strip 40 Position Connector Differential Pair Array, Female Surface Mount Gold

Properties

QSH-020-01-L-D-DP-A

Samtec

Connectors

samtec.com/products/qsh-dp

J

Socket

TO

parametric-v1

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