main
Ray brief: polarity sentence corrected b52da33
{
  "schema_version": 1,
  "type": "component",
  "slug": "vt1h221m1010",
  "title": "VT1H221M1010",
  "brief": "ROQANG Aluminum Electrolytic Capacitors - SMD, SMD,D10xL10.2mm. Polarised capacitor: pin 1 is + by the KiCad polarised-footprint convention, KiCad symbol/footprint/3D.",
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    "subcategory": "Aluminum Electrolytic Capacitors - SMD",
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    "distributor_links": {
      "lcsc": "C20606822"
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    "distributor_check": {
      "checked_at": "2026-11-06T10:28:54Z",
      "source": "Component Ocean /api/assign-pns",
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        "status": "quota"
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      "mouser": {
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      },
      {
        "number": "2",
        "name": "-",
        "type": "passive",
        "description": "Negative terminal."
      }
    ],
    "provenance": {
      "extractor": "extract_pins",
      "factory_chain": {
        "factory": "2.0.0",
        "extractor": "extract_pins",
        "primary_model": "two-terminal convention",
        "primary_mode": "convention",
        "consensus_model": null,
        "consensus": "agreed",
        "guards": "pin_guards 0.1: passed",
        "guard_notes": [
          "vision extraction: provenance cannot be text-verified; needs consensus"
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        "pages_sent": 5,
        "cost_usd": 0.002,
        "at": "2026-11-06T10:28:47"
      },
      "datasheet": {
        "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8756925729319993344",
        "pages": 5,
        "sha256": "785e746e22d6937c",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 2,
        "described": 2,
        "cites_pages": true,
        "refuses_to_fabricate": true
      },
      "correction": {
        "at": "2026-11-09T22:27:29Z",
        "what": "pins 1/2 \"unpolarised, either orientation\" -> 1 = +, 2 = -",
        "how": "fix_polarity.py: symbol +, footprint polarity mark and 3D marked end all at pin 1"
      }
    },
    "viewers": {
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        "seat": "z = 0",
        "extents_mm": [
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        "centre_offset_mm": 0,
        "footprint_binding": "identity",
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    ],
    "package_dims": {
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      "source_page": 1,
      "D": {
        "nom_mm": 10,
        "range_mm": [
          null,
          null
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      "E1": {
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        "range_mm": [
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      },
      "e": {
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      },
      "A": {
        "nom_mm": 10.2,
        "range_mm": [
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          null
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      },
      "source": "datasheet package drawing, every number found on its page (extract_pins --task dims)",
      "model_check": {
        "file": "vt1h221m1010.step",
        "verdict": "PASS",
        "reasons": [
          "height within the datasheet's package drawing"
        ],
        "by": "factory/package_fit.py"
      }
    },
    "polarized": true,
    "polarity": {
      "positive_pin": "1",
      "basis": "KiCad CP_ footprint convention; symbol, footprint and 3D mark checked"
    }
  },
  "metadata": {
    "specs": {
      "Manufacturer": "ROQANG",
      "Package": "CP_Elec_10x10",
      "Category": "Capacitors",
      "Pins": "2"
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    "characteristics": {
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          "name": "Operating temperature (lower limit, 50V in 6.3-100V group)",
          "symbol": "",
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          "unit": "℃",
          "min": -55,
          "typ": null,
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          "source": "datasheet"
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        {
          "name": "Operating temperature (upper limit, 50V in 6.3-100V group)",
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          "unit": "℃",
          "min": null,
          "typ": null,
          "max": 105,
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        {
          "name": "Capacitance tolerance",
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          "kind": "tolerance",
          "unit": "%",
          "min": -20,
          "typ": null,
          "max": 20,
          "conditions": "120Hz, 20℃; code M = ±20%",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Dissipation factor (tan δ)",
          "symbol": "tanδ",
          "kind": "electrical",
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          "typ": null,
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          "source_page": 1,
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        },
        {
          "name": "Impedance ratio Z(-25℃)/Z(+20℃)",
          "symbol": "Z(-25C)/Z(+20C)",
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          "conditions": "120Hz; ΦD<12.5, 50V column",
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        {
          "name": "Impedance ratio Z(-40℃)/Z(+20℃)",
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        },
        {
          "name": "Guaranteed life (endurance)",
          "symbol": "",
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          "typ": null,
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        },
        {
          "name": "Guaranteed life (high-temperature no-load)",
          "symbol": "",
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          "name": "Dissipation factor after endurance (relative to initial spec)",
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        {
          "name": "Capacitance change after soldering heat test",
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          "min": -10,
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          "conditions": "250℃ hot plate 30 s, recovered at room temperature",
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        {
          "name": "Rated DC working voltage (code 1H)",
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          "source": "datasheet"
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        {
          "name": "Preheat time from 150℃ to 180℃",
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          "source": "datasheet"
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          "unit": "℃",
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          "max": 235,
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          "source": "datasheet"
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        {
          "name": "Time at 217℃ on capacitor top (tL)",
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        {
          "name": "Time at 230℃ on capacitor top (td)",
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        },
        {
          "name": "Time within 5℃ of actual peak temperature (tp)",
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          "conditions": "Lead-free reflow; size row 8/10 13.5L",
          "source_page": 5,
          "source": "datasheet"
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  "discovery_pitch": "VT1H221M1010 (ROQANG) component page: datasheet pinout, KiCad symbol, footprint and 3D.",
  "author": {
    "name": "Ray"
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  "updated_at": "2026-11-09T22:27:33.991Z"
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