Part Datasheet Review and Verification

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Here’s a step-by-step execution for the Molex SlimStack receptacle part 505066-1422.
  1. Review of currently available part information (from the part project)
  • MPN: 505066-1422
  • Manufacturer: Molex
  • Part type: Connectors
  • Designator prefix: J
  • Package/case code (project property): TO (note: this appears inconsistent for a board-to-board connector; see cross-check)
  • Description (project): SlimStack Board-to-Board Connector, 0.35mm Pitch, SSB RP Series, Receptacle, 0.60mm Mated Height, 2.00mm Mated Width, Circuits, Armor Nail
  • Schematic symbol content: 14 signal terminals present plus 4 mechanical “MP” terminals (18 total schematic terminals)
  • Footprint content: 14 signal pads plus 4 mechanical pads (MP1–MP4), as a single “Footprint” node; no PCB rules defined
  1. Datasheet URL presence check and update
  1. Datasheet scan and metadata extraction (from the linked PDF) Note: This PDF is a Molex customer/product drawing and packaging drawing for the 505066 series, not a full electrical-spec datasheet. It provides mechanicals, recommended land pattern, stencil, and ordering/circuits info. Electrical ratings and materials are not in this document.
Basic part series information
  • Series: 505066 (SlimStack B2B receptacle)
  • Pitch: 0.35 mm (2-row)
  • Circuits supported (examples shown): 6, 8, 10, 12, 14, 18, 20, 22, 30, 32, 34, 40, 42, 46, 48, 50, 54, 60, 64
  • Specific part: 505066-1422 → 14 circuits
  • Mated condition (height): 0.6 ± 0.1 mm
  • Mate with: 505070-**22 / 505070-**42 (plug/headers indicated on drawing)
  • Packaging: Embossed tape; quantity 8000 pcs/reel (noted in the drawing)
  • Dimensions table excerpt (for 505066-1422): A = 2.10 mm, B = 4.90 mm (context labels “A” and “B” shown in the drawing alongside order number and circuits)
Recommended PCB land pattern (reference)
  • Contact pad pitch: 0.35 ± 0.03 mm
  • Contact pad width: 0.18 ± 0.03 mm
  • Inner pad gap (between pad rows): 0.62 ± 0.03 mm
  • Overall contact row height (row-to-row span): 1.54 ± 0.03 mm
  • Outer clearances: 0.36 mm (noted)
  • Fitting nail pad size: 0.40 ± 0.03 mm by 0.58 ± 0.03 mm
  • Fitting nail horizontal offset (datum to nail centerline): 1.28 ± 0.03 mm
  • Pattern length: B ± 0.03 (with note “(B + 0.53) MIN.” also shown)
Recommended stencil information
  • Recommended metal mask (stencil) thickness: t = 0.08 mm
  • Recommended open aperture ratio: 80%
  • Recommended metal mask layout: Dimensions repeated in the figure; includes values consistent with land pattern geometry listed above
Other notes visible on the drawing
  • “PROHIBITED AREA OF PATTERN WIRING AND SOLDER” zones are indicated (keep-out around the connector)
  • Tails and fitting nail coplanarity: 0.08 mm maximum
  • Compliance, materials/plating, and electrical ratings: Not found in this document
Unavailable in the provided PDF (not found)
  • Electrical characteristics (current rating, voltage rating, contact resistance, insulation resistance, dielectric withstanding voltage)
  • Materials and plating details
  • Environmental/temperature limits (operating/storage)
  • Formal “pin description” text; the drawing focuses on circuits/pad numbering and land pattern
  • Safety/compliance (RoHS/halogen-free/UL)
  1. Cross-check: schematic symbol and footprint vs. datasheet/drawing Symbol-level checks
  • Circuit count: The project symbol exposes 14 signal terminals, which matches the 14-circuit 505066-1422 variant. Good.
  • Mechanical terminals: The symbol includes 4 mechanical “MP” terminals. The drawing shows “fitting nail” pads and provides dimensions; while the count is not explicitly listed in text, the recommended pattern depicts fitting nail pads consistent with multiple anchors. The presence of 4 mechanical anchors/pads in this project is plausible. No hard mismatch detected.
  • Numbering/orientation: The drawing does not provide a text callout for “Pin 1” orientation in the search results, but it shows circuit/order tables and dimensional references. Ensure your symbol’s circuit numbering matches Molex’s numbering scheme in the figure. If the intended board system depends on a defined pin-1 convention, verify that the symbol’s numeric order and left/right/top/bottom arrangement match the Molex drawing orientation.
Footprint-level checks
  • Pad count: 14 signal pads + fitting nail pads are present in the footprint; matches the 14-circuit configuration. Good.
  • Pad pitch and size: The drawing specifies 0.35 mm pitch and 0.18 mm pad width. Pad geometry values were not returned by the layout query, so I cannot confirm the exact pad sizes/spacing in the footprint data here. Action suggested: verify your footprint’s signal pad pitch is 0.35 mm and pad width is 0.18 mm, with 1.54 mm row-to-row span and 0.62 mm inner gap to match the drawing.
  • Fitting nail pads: Drawing lists 0.40 × 0.58 mm with 1.28 mm horizontal offset. The layout tool did not expose pad dimensions, so I cannot confirm sizing/position from the project data. Action suggested: confirm your fitting nail pad size and position against these values.
  • Keep-out: The drawing shows “prohibited area of pattern wiring and solder” around the connector. Ensure the footprint includes/communicates this keep-out in courtyard/assembly layers or documentation for PCB layout.
  • Pin-1 indicator: Not visible from the layout query results. Action suggested: ensure a clear Pin-1 indicator (assembly/silkscreen/Doc layer) consistent with the drawing orientation.
  • Stencil: The drawing recommends 0.08 mm stencil thickness and 80% aperture ratio. Ensure your paste apertures reflect this recommendation or your process capability.
Project property consistency checks (could cause ordering/manufacturing confusion)
  • Package/Case Code: The project property lists “TO”. “TO” is a transistor outline code and does not apply to this low-profile board-to-board connector. Action suggested: update package/case metadata to a connector-appropriate description (e.g., “SlimStack 0.35 mm receptacle, 2-row, 14-circuit, 0.60 mm mated height”) or leave blank if your workflow does not require a standardized case code.
  • Description: The current description string includes “Circuits” but does not specify the number. Action suggested: include the explicit circuit count, e.g., “14 Circuits”.
  • Datasheet completeness: This drawing is excellent for land pattern and packaging, but it lacks electrical/materials/environmental specs. If you need those, consult Molex’s product specification for the 505066 series (often a PS- document) or the online product page.
If you want, I can:
  • Verify pad geometries by extracting exact pad sizes/positions from the footprint,
  • Normalize the metadata (package/case string, description with explicit circuit count),
  • Add a pin-1 indicator note on the footprint documentation layer,
  • Locate and summarize the full product specification with electrical and material ratings.
Find full Molex spec
Check exact pad geometry
Fix package metadata
9
MP2
6
13
2
7
8
MP3
10
MP4
14
MP1
1
5
12
11
3
4
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5050661422

5050661422 thumbnail
14 Position Connector Receptacle, Center Strip Contacts Surface Mount Gold #CommonPartsLibrary #Connector #SlimStack Armor 505066 #505066-1422

Properties

5050661422

Molex

Connectors

molex.com/pdm_docs/sd/5050661422_sd.pdf

J

TO

Board to Board Connectors

creativecommons.org/licenses/by/4.0/

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