GRM1555C1H220JA01D - Murata

{
 "schema": "adom/verification@1",
 "part": "GRM1555C1H220JA01D",
 "variants": [],
 "entries": [
  {
   "date": "2026-10-21",
   "by": {
    "name": "Claude (AI agent) for John Lauer",
    "handle": "john"
   },
   "status": "verified",
   "title": "3D model matches the datasheet package dimensions",
   "scope": [
    "3d-model"
   ],
   "variants": [
    "*"
   ],
   "checks": [
    {
     "text": "L: model 1.000 mm, datasheet 0.95 to 1.05 mm",
     "result": "pass"
    },
    {
     "text": "W: model 0.500 mm, datasheet 0.45 to 0.55 mm",
     "result": "pass"
    },
    {
     "text": "T/H: model 0.500 mm, datasheet 0.45 to 0.55 mm",
     "result": "pass"
    },
    {
     "text": "e (terminal band), top: model 0.200 mm, datasheet 0.15 to 0.35 mm",
     "result": "pass"
    },
    {
     "text": "e (terminal band), bottom: model 0.200 mm, datasheet 0.15 to 0.35 mm",
     "result": "pass"
    },
    {
     "text": "Z-up, seated on z = 0, centred on the footprint origin, long axis on X",
     "result": "pass"
    },
    {
     "text": "no Murata STEP was reachable by plain HTTP for this exact part number (public product API lists no 3D asset); the model is KiCad's library package, checked against Murata's printed L, W, T and e limits",
     "result": "note"
    }
   ],
   "evidence": [
    {
     "label": "overlay (top, bottom, side, end at true scale)",
     "href": "docs/verify/grm1555c1h220ja01d-overlay.png"
    },
    {
     "label": "numbers",
     "href": "docs/verify/grm1555c1h220ja01d-check.json"
    },
    {
     "label": "datasheet (Murata reference sheet GRM1555C1H220JA01-01A, specifications as of Jun. 13, 2026)",
     "href": "docs/grm1555c1h220ja01d-datasheet.pdf"
    }
   ],
   "files": {
    "GRM1555C1H220JA01D.step": "03e44c4b2b727b8d4b6b1fd598cbd12dd5e614f1dfeefa96a92a07e3a3b312a2",
    "package-reference.glb": "100935c5c0d6f20a6c9bdfb6386f874dc8a4457bf0e4f3ace69f1ab090100773",
    "docs/grm1555c1h220ja01d-datasheet.pdf": "25192d46bc6ca4a47fecc3204bb16207213d5329ea3b090f243ab2f20a65fc4d"
   }
  },
  {
   "date": "2026-10-21",
   "by": {
    "name": "Claude (AI agent) for John Lauer",
    "handle": "john"
   },
   "status": "open",
   "title": "Footprint compared with the maker's recommended land pattern (KiCad pads larger than the maker's range)",
   "scope": [
    "footprint"
   ],
   "variants": [
    "*"
   ],
   "checks": [
    {
     "text": "gap between lands: KiCad 0.40 mm, maker 0.30 to 0.50 mm",
     "result": "pass"
    },
    {
     "text": "land length: KiCad 0.56 mm, maker 0.35 to 0.45 mm",
     "result": "note"
    },
    {
     "text": "land width: KiCad 0.62 mm, maker 0.40 to 0.60 mm",
     "result": "note"
    },
    {
     "text": "overall length (a + 2b, derived): KiCad 1.52 mm, maker 1.00 to 1.40 mm",
     "result": "note"
    }
   ],
   "evidence": [
    {
     "label": "comparison drawing",
     "href": "land-pattern/land-pattern.png"
    },
    {
     "label": "numbers",
     "href": "land-pattern/land-check.json"
    },
    {
     "label": "write-up",
     "href": "land-pattern/README.md"
    }
   ],
   "files": {
    "C_0402_1005Metric_GRM1555C1H220JA01D.kicad_mod": "d1c8fe6c3f9009d0e3dff657ccb5f1e1e5d579b69b61a04a8a530165a9960e4c"
   }
  },
  {
   "date": "2026-10-21",
   "by": {
    "name": "Claude (AI agent) for John Lauer",
    "handle": "john"
   },
   "status": "verified",
   "title": "Marking: the model shows the real part, which is unmarked",
   "scope": [
    "3d-model",
    "marking"
   ],
   "variants": [
    "*"
   ],
   "checks": [
    {
     "text": "The Murata reference sheet specifies no part marking: none of its 33 pages has a marking section, and the p.2 dimension sketch shows a plain body (GRM1555C1H220JA01-01A, all 33 pages searched; p.2)",
     "result": "pass"
    },
    {
     "text": "no AI-added part-number etch on any model",
     "result": "pass"
    }
   ],
   "evidence": [
    {
     "label": "datasheet",
     "href": "docs/grm1555c1h220ja01d-datasheet.pdf"
    }
   ],
   "files": {
    "GRM1555C1H220JA01D.step": "03e44c4b2b727b8d4b6b1fd598cbd12dd5e614f1dfeefa96a92a07e3a3b312a2"
   }
  },
  {
   "date": "2026-10-21",
   "by": {
    "name": "Claude (AI agent) for John Lauer",
    "handle": "john"
   },
   "status": "verified",
   "title": "Board-use LOD GLBs are clean and share the STEP pose",
   "scope": [
    "lod"
   ],
   "variants": [
    "*"
   ],
   "checks": [
    {
     "text": "four levels written, read back, bounds equal the STEP (Z-up, metres, seat z = 0)",
     "result": "pass"
    },
    {
     "text": "no footprint, pad outline, label or silkscreen helpers; terminals present at every level",
     "result": "pass"
    },
    {
     "text": "previews looked at by the AI agent, not yet by a person",
     "result": "note"
    }
   ],
   "evidence": [
    {
     "label": "manifest",
     "href": "lod/manifest.json"
    }
   ],
   "files": {
    "lod/high.glb": "0e3c59226f954cfc527d420961a2db88f5a644d0146ee779eaf93a84b64c86a1",
    "lod/medium.glb": "b20243cf5204049e8062d1aee8894a95f683f2e17b93106256d4ca5e36d5fcef",
    "lod/low.glb": "70542a64b4c81b59c766313f6c02c7d525dc0ff667e4996a782dcef8e249d8f8",
    "lod/super-low.glb": "c058869375d943c45afb94ab17fdba6445a03d8d56356590b5a844673a53e8b3"
   }
  },
  {
   "date": "2026-10-21",
   "by": {
    "name": "Claude (AI agent) for John Lauer",
    "handle": "john"
   },
   "status": "verified",
   "title": "Pin 1 and polarity",
   "scope": [
    "footprint",
    "3d-model",
    "symbol"
   ],
   "variants": [
    "*"
   ],
   "checks": [
    {
     "text": "non-polar two-terminal capacitor: pads 1 and 2 are interchangeable; symbol pins 1 and 2 map to pads 1 and 2",
     "result": "pass"
    },
    {
     "text": "model terminals sit on the footprint pads (both centred on the origin, long axis on X)",
     "result": "pass"
    }
   ],
   "evidence": [],
   "files": {
    "C_0402_1005Metric_GRM1555C1H220JA01D.kicad_mod": "d1c8fe6c3f9009d0e3dff657ccb5f1e1e5d579b69b61a04a8a530165a9960e4c",
    "GRM1555C1H220JA01D.kicad_sym": "d1e77b57b159a46907255e23e80f1a4ecc1461f670fc8f3b7101752478ddee0b",
    "GRM1555C1H220JA01D.step": "03e44c4b2b727b8d4b6b1fd598cbd12dd5e614f1dfeefa96a92a07e3a3b312a2"
   }
  },
  {
   "date": "2026-10-21",
   "by": {
    "name": "Claude (AI agent) for John Lauer",
    "handle": "john"
   },
   "status": "verified",
   "title": "Hero GLB built to adom-hero 1.4 over the clean model",
   "scope": [
    "3d-model",
    "hero"
   ],
   "variants": [
    "*"
   ],
   "checks": [
    {
     "text": "pads 2, silk items 2, pin1 none, labels 2; align OK (offset 0.0 mm)",
     "result": "pass"
    },
    {
     "text": "pad outlines teal 50 %, silkscreen 30 % alpha, pad-number labels 50 % (the terminals have no names); no pin-1 dot, the part is non-polar",
     "result": "pass"
    },
    {
     "text": "hero is a separate file; package-reference.glb and every LOD carry no artwork",
     "result": "pass"
    },
    {
     "text": "preview looked at by the AI agent; the live wiki viewer still needs a person's look",
     "result": "note"
    }
   ],
   "evidence": [
    {
     "label": "preview (top and oblique)",
     "href": "docs/grm1555c1h220ja01d-hero-preview.png"
    },
    {
     "label": "sidecar",
     "href": "grm1555c1h220ja01d-hero.overlay.json"
    }
   ],
   "files": {
    "grm1555c1h220ja01d-hero.glb": "111d061a49b3221122a73fca145d49eef61b339df603e76f83905a1ae8da3fba",
    "package-reference.glb": "100935c5c0d6f20a6c9bdfb6386f874dc8a4457bf0e4f3ace69f1ab090100773",
    "C_0402_1005Metric_GRM1555C1H220JA01D.kicad_mod": "d1c8fe6c3f9009d0e3dff657ccb5f1e1e5d579b69b61a04a8a530165a9960e4c"
   }
  },
  {
   "date": "2026-10-21",
   "by": {
    "name": "Claude (AI agent) for John Lauer",
    "handle": "john"
   },
   "status": "verified",
   "title": "Fusion and Altium libraries generated from the KiCad symbol and footprint",
   "scope": [
    "symbol",
    "footprint",
    "eda"
   ],
   "variants": [
    "*"
   ],
   "checks": [
    {
     "text": "adom-lbr generate: .lbr lint passed (0 errors)",
     "result": "pass"
    },
    {
     "text": "adom-lbr import-kicad + export-altium: native .SchLib and .PcbLib written; MPN, Manufacturer and supplier numbers carried as parameters",
     "result": "pass"
    },
    {
     "text": "not yet opened in Fusion 360 or Altium by a person",
     "result": "note"
    }
   ],
   "evidence": [],
   "files": {
    "GRM1555C1H220JA01D.lbr": "cc5f8e670edb222111e2e9cbcceaff22fb6151853a33c097768012ed1831aa77",
    "altium/GRM1555C1H220JA01D.SchLib": "797ff9839a08d371ac838d7e6e025985a8e3872f433dd8aca8170d8b194fabbf",
    "altium/GRM1555C1H220JA01D.PcbLib": "f10519cd74a37b348dd21df3009b0dc5600fee5b8871576df314ed5ea64b984d",
    "altium/GRM1555C1H220JA01D.adom-lbr.json": "d2ea60297c682ffd0584998001f7190b61c2a7fb99695954a65ac8397874f69b"
   }
  }
 ]
}