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Ray Set visibility: public 0387658 16d ago
{
  "schema_version": 1,
  "type": "component",
  "slug": "sm15t39cay",
  "title": "SM15T39CAY",
  "brief": "STMicroelectronics TVS, SMC. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.1.0",
  "license": "CC-BY-SA-4.0",
  "tags": [
    "component",
    "circuit protection",
    "sm15t39cay",
    "factory-2.0.0",
    "extractor-text"
  ],
  "component": {
    "mpn": "SM15T39CAY",
    "manufacturer": "STMicroelectronics",
    "package": "SMC",
    "pin_count": 2,
    "category": "Circuit Protection",
    "subcategory": "TVS",
    "datasheet": "https://www.st.com/resource/en/datasheet/sm15t39cay.pdf",
    "parts": {
      "symbol": "sm15t39cay.kicad_sym",
      "footprint": "sm15t39cay.kicad_mod",
      "model_3d": "sm15t39cay-hero.glb",
      "model_3d_plain": "sm15t39cay-etched.glb",
      "model_3d_step": "sm15t39cay-etched.step",
      "model_3d_step_plain": "sm15t39cay.step",
      "lbr": "sm15t39cay.lbr"
    },
    "distributor_links": {
      "lcsc": "C1976263",
      "digikey": "497-10793-2-ND",
      "mouser": "511-SM15T39CAY"
    },
    "distributor_check": {
      "checked_at": "2026-10-23T03:07:03Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "497-10793-2-ND",
        "status": "found",
        "lifecycle": "Active"
      },
      "mouser": {
        "pn": "511-SM15T39CAY",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "1",
        "type": "passive",
        "description": "Bidirectional (CA) terminal with no polarity; the device clamps surges of either polarity (VBR 37.1 to 41.0 V at 1 mA, VRM 33.3 V, VCL 53.9 V at 28 A 10/1000 µs)."
      },
      {
        "number": "2",
        "name": "2",
        "type": "passive",
        "description": "Second bidirectional (CA) terminal, interchangeable with the other; there is no cathode band on bidirectional devices, and peak pulse power is 1500 W (10/1000 µs)."
      }
    ],
    "provenance": {
      "extractor": "extract_pins 0.3",
      "factory_chain": {
        "factory": "2.0.0",
        "extractor": "extract_pins 0.3",
        "primary_model": "claude-sonnet-5-5",
        "primary_mode": "text",
        "consensus_model": "claude-sonnet-5-5",
        "consensus": "agreed",
        "guards": "pin_guards 0.1: passed",
        "guard_notes": [
          "extractor flagged: The datasheet prints no pin numbers or names for the SMC package. The pin numbers 1 and 2 and the na"
        ],
        "pages_sent": 12,
        "cost_usd": 0.1573,
        "at": "2026-10-23T03:06:48"
      },
      "datasheet": {
        "url": "https://www.st.com/resource/en/datasheet/sm15t39cay.pdf",
        "pages": 12,
        "sha256": "c929f08172c291d2",
        "source_tier": "mfr"
      },
      "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"
    },
    "models_3d": [
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        "file": "sm15t39cay.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          8,
          5.9,
          2.31
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "30dab4c2e22239b7e3694a4d45304e04255c6b70a79d28e9c34c6072ba647991",
        "checked": "2026-10-23",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "sm15t39cay-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
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        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "6d14efeb3b8eabc2c77937d36769fd09c74c613854995e0e8cb472dcc14cd7d6",
        "checked": "2026-10-23",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "STMicroelectronics",
      "Package": "SMC",
      "Category": "Circuit Protection",
      "Pins": "2"
    },
    "characteristics": {
      "version": 1,
      "source": "datasheet",
      "datasheet_sha256": "c929f08172c291d27959e58d298aa4c803db715ddd9795907e9d381d06542fa1",
      "rows": [
        {
          "name": "Stand-off voltage",
          "symbol": "VRM",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": 33.3,
          "max": null,
          "conditions": "Tamb = 25 °C",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Breakdown voltage",
          "symbol": "VBR",
          "kind": "electrical",
          "unit": "V",
          "min": 37.1,
          "typ": 39,
          "max": 41,
          "conditions": "@ IR = 1 mA, Tamb = 25 °C",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Leakage current at VRM, 25 °C",
          "symbol": "IRM",
          "kind": "electrical",
          "unit": "µA",
          "min": null,
          "typ": null,
          "max": 0.2,
          "conditions": "@ VRM, 25 °C",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Leakage current at VRM, 85 °C",
          "symbol": "IRM",
          "kind": "electrical",
          "unit": "µA",
          "min": null,
          "typ": null,
          "max": 1,
          "conditions": "@ VRM, 85 °C",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Clamping voltage 10/1000 µs",
          "symbol": "VCL",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 53.9,
          "conditions": "@ IPP = 28 A, 10/1000 µs",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Dynamic resistance 10/1000 µs",
          "symbol": "RD",
          "kind": "electrical",
          "unit": "Ω",
          "min": null,
          "typ": 0.461,
          "max": null,
          "conditions": "10/1000 µs",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Clamping voltage 8/20 µs",
          "symbol": "VCL",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 69.7,
          "conditions": "@ IPP = 143 A, 8/20 µs",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Dynamic resistance 8/20 µs",
          "symbol": "RD",
          "kind": "electrical",
          "unit": "Ω",
          "min": null,
          "typ": 0.2,
          "max": null,
          "conditions": "8/20 µs",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Voltage temperature coefficient",
          "symbol": "αT",
          "kind": "temperature_coefficient",
          "unit": "10-4/°C",
          "min": null,
          "typ": 10,
          "max": null,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Peak pulse power dissipation",
          "symbol": "PPP",
          "kind": "absolute_maximum",
          "unit": "W",
          "min": null,
          "typ": null,
          "max": 1500,
          "conditions": "Tj initial = Tamb, 10/1000 µs",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Peak pulse voltage ISO 10605 contact discharge (330 pF)",
          "symbol": "VPP",
          "kind": "absolute_maximum",
          "unit": "kV",
          "min": null,
          "typ": null,
          "max": 30,
          "conditions": "ISO 10605 (C = 330 pF, R = 330 Ω): contact discharge",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Peak pulse voltage ISO 10605 air discharge (330 pF)",
          "symbol": "VPP",
          "kind": "absolute_maximum",
          "unit": "kV",
          "min": null,
          "typ": null,
          "max": 30,
          "conditions": "ISO 10605 (C = 330 pF, R = 330 Ω): air discharge",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Peak pulse voltage ISO 10605 contact discharge (150 pF)",
          "symbol": "VPP",
          "kind": "absolute_maximum",
          "unit": "kV",
          "min": null,
          "typ": null,
          "max": 30,
          "conditions": "ISO 10605 (C = 150 pF, R = 330 Ω): contact discharge",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Peak pulse voltage ISO 10605 air discharge (150 pF)",
          "symbol": "VPP",
          "kind": "absolute_maximum",
          "unit": "kV",
          "min": null,
          "typ": null,
          "max": 30,
          "conditions": "ISO 10605 (C = 150 pF, R = 330 Ω): air discharge",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Storage temperature range",
          "symbol": "Tstg",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": -65,
          "typ": null,
          "max": 150,
          "conditions": "",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Operating junction temperature range",
          "symbol": "Tj",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": -40,
          "typ": null,
          "max": 150,
          "conditions": "",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Maximum lead temperature for soldering",
          "symbol": "TL",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": null,
          "typ": null,
          "max": 260,
          "conditions": "during 10 s",
          "source_page": 2,
          "source": "datasheet"
        }
      ]
    }
  },
  "variants": [],
  "sections": [
    "hero",
    "viewers",
    "readme",
    "breadcrumbs",
    "info"
  ],
  "discovery_triggers": [
    "sm15t39cay"
  ],
  "discovery_pitch": "SM15T39CAY (STMicroelectronics) component page: datasheet pinout, KiCad symbol, footprint and 3D.",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
  },
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
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    "README.md",
    "sm15t39cay.kicad_sym",
    "sm15t39cay.kicad_mod",
    "sm15t39cay.glb",
    "sm15t39cay.step",
    "sm15t39cay.lbr",
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    "docs/sm15t39cay-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "sm15t39cay-hero.glb",
    "sm15t39cay-hero.overlay.json",
    "sm15t39cay-etched.glb"
  ],
  "visibility": {
    "public": true
  }
}