main
John Lauer Publish 0.1.0 29bd3f2 16d ago
{
 "manufacturer_reference": "https://www.yageogroup.com/content/datasheet/asset/file/PYU-RC_GROUP_51_ROHS_L",
 "datasheet_link_check": "Yageo RC_L datasheet PDF, HTTP 200, application/pdf (2026-10-18)",
 "symbol_source": "Original, hand-written from the pin list (resistor). MIT.",
 "footprint_source": "KiCad standard library Resistor_SMD:R_0402_1005Metric (CC-BY-SA 4.0 with the KiCad library exception)",
 "package_source": "KiCad packages3D Resistor_SMD.3dshapes/R_0402_1005Metric.step (CC-BY-SA 4.0 with exception)",
 "geometry_status": "Generic KiCad package geometry; not manufacturer-issued exact-ordering-code CAD. Verify against the manufacturer land pattern before use.",
 "glb": {
  "tool": "step2glb convert",
  "exit": 0,
  "stderr_tail": "Large file queued for async conversion (job e12a00a08402a36a). Polling...\nJob e12a00a08402a36a complete (0s). Downloading GLB...\n"
 },
 "files": {
  "RC0402FR-075K1L.step": "91507e5af4251cb4ef38e04889c9b98da29904432bd83786bba13ae9b605eacb",
  "README.md": "df7c9faca0ae20182eea5563cfea5e641dbdc439aecf170da742c59faa1ee83f",
  "R_0402_1005Metric_RC0402FR-075K1L.kicad_mod": "23cf5b6c838dc176ce3ff041b1330716cc0cb846d3922a05660c6bc5b98390d4",
  "component.kicad_sym": "02ad8bb9dd5499cbe9c93c168dbb89884227964003f988740dd9a96e150dbbd2",
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  "docs/rc0402fr-075k1l-datasheet.pdf": "7b6f0ae72708ca4b38126f84b5407a3e970a94cb60bc1a0afdaeb25a23d839bb",
  "docs/verify/rc0402fr-075k1l-check.json": "38762b73dffb69ea17987737382186312c6d88e2135603a0cd4bd625fd7fe589",
  "docs/verify/rc0402fr-075k1l-overlay.png": "a234e5d3d97b9d24987f45c448ce633e67cd19b7122fe0cdc4f5c73684b31ddb",
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  "models.json": "920dd3dfde4b43cd05cb1cbf33dde01f71481a02baaf5268c725597ebb5d3f3d",
  "package-reference.glb": "e0f0a1b3f86b307421456f2e9945d22b4d3e222a7ec62e602fc97c5e6a7f34c3",
  "package.json": "60bf37ca2f71a583b249ad44fab1eb879d5b9f9eaf4c2c7104e6f096e3de37aa",
  "page.json": "f2febc3f3f16c4ff857bf3f4dbcb7643330ac47d3693ac3ff3950f97e215083d",
  "provenance/tools/lod.py": "fc3eb9db56947d002d1dda328a6ee53032eae39f700521d00d18477f9915135c",
  "provenance/tools/ortho.py": "c5a44e74fa447e1ece13190840c90d453cbb004f6c4608efb6e8cdb1ba2cbb6d",
  "provenance/tools/overlay_chip.py": "ed6a4e871ff09d8c41550b3cd9fc853be174f9212ced43c0206835bdc847a222",
  "provenance/tools/rc0402fr-075k1l-overlay-spec.json": "0f0b82c67deb7f22af6e8195a74c57f310ed2e2d3a85dc915af1c962c499c252",
  "verification.json": "af84d40976e82cf7e3593a2613a3df12253aeea5223b8ca8f706c5a5ae40ed4c"
 },
 "marking": {
  "real_marking": null,
  "statement": "Yageo states 'No Marking' for RC0402 (the top is the plain black overcoat)",
  "source": "Yageo RC_L product specification V.14 p.3, MARKING, Fig. 1"
 },
 "mpn_marked_model_removed": {
  "date": "2026-10-19",
  "files": [
   {
    "path": "rc0402fr-075k1l-mpn.step",
    "sha256": "0ef6ac56caad662b755ddb58f62dbc9a44c89312de72f1350c7262270085fdc4"
   },
   {
    "path": "rc0402fr-075k1l-mpn.glb",
    "sha256": "0dead36515ca4072f804a596b3fd9bf7f236875120ea37017a3b8182e7d2bef4"
   },
   {
    "path": "docs/rc0402fr-075k1l-mpn.check.png",
    "sha256": "07b8c36d646dec1a27f846e912e3aefe55e76895630e478c17431f5e94accf99"
   }
  ],
  "reason": "John's rule: every chip shows only its real laser marking from the manufacturer's datasheet. Yageo states 'No Marking' for RC0402 (the top is the plain black overcoat) (Yageo RC_L product specification V.14 p.3, MARKING, Fig. 1), so the AI-added MPN etch misrepresented the part and was deleted.",
  "removed_by": "Claude (AI agent) for John Lauer"
 },
 "datasheet": {
  "file": "docs/rc0402fr-075k1l-datasheet.pdf",
  "sha256": "7b6f0ae72708ca4b38126f84b5407a3e970a94cb60bc1a0afdaeb25a23d839bb",
  "url": "https://yageogroup.com/content/datasheet/asset/file/PYU-RC_GROUP_51_ROHS_L",
  "title": "Yageo RC_L series product specification V.14 (Nov. 14, 2025)",
  "retrieved": "2026-10-19"
 },
 "datasheet_check": {
  "overlay": "docs/verify/rc0402fr-075k1l-overlay.png",
  "numbers": "docs/verify/rc0402fr-075k1l-check.json",
  "tools": "provenance/tools/ (ortho.py, overlay_chip.py, spec json)",
  "result": "PASS"
 },
 "lod": {
  "manifest": "lod/manifest.json",
  "generator": "provenance/tools/lod.py",
  "source_sha256": "91507e5af4251cb4ef38e04889c9b98da29904432bd83786bba13ae9b605eacb"
 },
 "files_note": "page.json, package.json and README.md hashes are as written before this provenance file; provenance.json itself is not listed.",
 "renamed_for_library_export": {
  "date": "2026-10-20",
  "files": {
   "package-reference.step": "RC0402FR-075K1L.step",
   "component.kicad_mod": "R_0402_1005Metric_RC0402FR-075K1L.kicad_mod"
  },
  "footprint_name": {
   "R_0402_1005Metric": "R_0402_1005Metric_RC0402FR-075K1L"
  },
  "reason": "Cloud Library exports merge every board part into one folder; the generic package-reference.step and footprint name collided with other parts. The STEP is byte-identical (same sha256); the footprint geometry is unchanged, only its name and (model) path changed.",
  "by": "Claude (AI agent) for John Lauer"
 },
 "derived_from": {
  "page": "john/rc0402fr-0710kl",
  "date": "2026-10-24",
  "by": "Claude (Encoder forum boards thread) for John Lauer",
  "what": "same RC_L series and 0402 package: footprint, STEP, GLBs, LODs and the datasheet dimension check reused; value, MPN and distributor numbers changed",
  "stock_checked_2026-10-24": {
   "mouser": {
    "pn": "603-RC0402FR-075K1L",
    "stock": 1898556
   },
   "digikey": {
    "pn": "311-5.10KLRTR-ND",
    "stock": 653539
   }
  }
 }
}