UF204

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  "type": "component",
  "slug": "uf204",
  "title": "UF204",
  "brief": "SUNMATE Elec Fast Recovery / High Efficiency Diodes, DO-15. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
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    "mpn": "UF204",
    "manufacturer": "SUNMATE Elec",
    "package": "DO-15",
    "pin_count": 2,
    "category": "Diodes",
    "subcategory": "Fast Recovery / High Efficiency Diodes",
    "datasheet": "https://datasheet.lcsc.com/datasheet/pdf/4774a7d21d5db42d3c729fc6efc24daa.pdf",
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      "lbr": "uf204.lbr",
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    "distributor_links": {
      "lcsc": "C5338466"
    },
    "distributor_check": {
      "checked_at": "2026-10-22T22:31:32Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "quota"
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      "mouser": {
        "pn": null,
        "status": "quota"
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    },
    "pins": [
      {
        "number": "1",
        "name": "K",
        "type": "passive",
        "description": "Cathode, identified by the cathode band on the DO-15 body; the diode blocks up to 400V (UF204 VRRM) and the datasheet gives only the band polarity marking."
      },
      {
        "number": "2",
        "name": "A",
        "type": "passive",
        "description": "Anode terminal of the DO-15 axial diode, conducting 2.0A average rectified output current at TA=55°C when forward biased."
      }
    ],
    "provenance": {
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        "consensus_model": "claude-sonnet-5-5",
        "consensus": "agreed",
        "guards": "pin_guards 0.1: passed",
        "guard_notes": [
          "extractor flagged: The datasheet has no pin table or pin numbers. Axial diode leads are numbered 1=cathode and 2=anode "
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        "pages_sent": 2,
        "cost_usd": 0.03,
        "at": "2026-10-22T22:31:17"
      },
      "datasheet": {
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        "pages": 2,
        "sha256": "c74ebe987ae368f4",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 2,
        "described": 2,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
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    "models_3d": [
      {
        "file": "uf204.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "body on z = 0, through-hole leads below",
        "extents_mm": [
          13.6,
          3.62,
          6.61
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        "zmin_mm": -2.5,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "830b6b0897c8be8055aa6c51f81fa67e5f932b1bf037644261cdba627d18a8b1",
        "checked": "2026-10-22",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "SUNMATE Elec",
      "Package": "DO-15",
      "Category": "Diodes",
      "Pins": "2"
    },
    "characteristics": {
      "version": 1,
      "source": "datasheet",
      "datasheet_sha256": "c74ebe987ae368f40a38d86567524a561b8e38ef696f674b760009ad289a6ec8",
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          "name": "Average Rectified Output Current",
          "symbol": "IO",
          "kind": "electrical",
          "unit": "A",
          "min": null,
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          "max": 2,
          "conditions": "@TA = 55°C, leads at 9.5mm from case (Note 1)",
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          "min": null,
          "typ": null,
          "max": 60,
          "conditions": "8.3ms single half sine-wave superimposed on rated load (JEDEC Method)",
          "source_page": 1,
          "source": "datasheet"
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        {
          "name": "Peak Reverse Current",
          "symbol": "IRM",
          "kind": "electrical",
          "unit": "µA",
          "min": null,
          "typ": null,
          "max": 5,
          "conditions": "@TA = 25°C, at rated DC blocking voltage",
          "source_page": 1,
          "source": "datasheet"
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        {
          "name": "Peak Reverse Current",
          "symbol": "IRM",
          "kind": "electrical",
          "unit": "µA",
          "min": null,
          "typ": null,
          "max": 100,
          "conditions": "@TA = 100°C, at rated DC blocking voltage",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Operating Temperature Range",
          "symbol": "Tj",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": -65,
          "typ": null,
          "max": 125,
          "conditions": "",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Storage Temperature Range",
          "symbol": "TSTG",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": -65,
          "typ": null,
          "max": 150,
          "conditions": "",
          "source_page": 1,
          "source": "datasheet"
        }
      ]
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  },
  "variants": [],
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  "discovery_triggers": [
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  "discovery_pitch": "UF204 (SUNMATE Elec) component page: datasheet pinout, KiCad symbol, footprint and 3D.",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
  },
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  "visibility": {
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}