L7812CD2T-TR

{
  "schema_version": 1,
  "type": "component",
  "slug": "l7812cd2t-tr",
  "title": "L7812CD2T-TR",
  "brief": "STMicroelectronics Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, TO-263-2. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.2.0",
  "license": "CC-BY-SA-4.0",
  "tags": [
    "component",
    "pmic",
    "l7812cd2t-tr"
  ],
  "component": {
    "mpn": "L7812CD2T-TR",
    "manufacturer": "STMicroelectronics",
    "package": "TO-263-2",
    "pin_count": 3,
    "category": "PMIC",
    "subcategory": "Voltage Regulators - Linear, Low Drop Out (LDO) Regulators",
    "datasheet": "https://www.st.com/resource/en/datasheet/l7812cd2t-tr.pdf",
    "parts": {
      "symbol": "l7812cd2t-tr.kicad_sym",
      "footprint": "l7812cd2t-tr.kicad_mod",
      "model_3d": "l7812cd2t-tr-etched.glb",
      "model_3d_plain": "l7812cd2t-tr.glb",
      "model_3d_step": "l7812cd2t-tr-etched.step",
      "model_3d_step_plain": "l7812cd2t-tr.step",
      "lbr": "l7812cd2t-tr.lbr"
    },
    "distributor_links": {
      "digikey": "497-1178-2-ND",
      "mouser": "511-L7812CD2T-TR",
      "lcsc": "C13456"
    },
    "pins": [
      {
        "number": "1",
        "name": "INPUT",
        "type": "power_in",
        "description": "Unregulated DC input voltage (V_I). Must be at least ~2 V above V_O (typ. 14.5-35 V for the 12 V variant); absolute maximum 35 V. Bypass to GND with a 0.33 uF ceramic capacitor placed close to the pin."
      },
      {
        "number": "2",
        "name": "GROUND",
        "type": "power_in",
        "description": "Common ground reference for the regulator. Electrically connected to the package tab on D2PAK; the tab must be soldered to a ground copper pour that also serves as the primary heat-sinking path."
      },
      {
        "number": "3",
        "name": "OUTPUT",
        "type": "power_out",
        "description": "Regulated +12 V output (V_O), 2% tolerance for A-grade, 4% for standard C-grade. Deliverable current up to 1.5 A with adequate heat sinking. Bypass to GND with a 0.1 uF ceramic capacitor for stability and transient response."
      }
    ],
    "provenance": {
      "extractor": "ds2sf",
      "datasheet": {
        "url": "https://www.st.com/resource/en/datasheet/l7812cd2t-tr.pdf",
        "pages": 58,
        "sha256": "32a4d2208c478c95",
        "source_tier": "mfr"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 3,
        "described": 3,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "pin1": {
      "pad": "1",
      "at": [
        -7.65,
        -2.54
      ],
      "corner": "top-left",
      "source": "silk-marker",
      "derived_from": "TO-263-2@sha256:13d8593fd80553e5",
      "mark": "drawn"
    },
    "models_3d": [
      {
        "file": "l7812cd2t-tr.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          15.0,
          10.0,
          4.42
        ],
        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "804a3f76e4182a02567b2429bdc9a585b857158fb8543fccd29c8eb6780e1310",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "l7812cd2t-tr-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          15.0,
          10.0,
          4.42
        ],
        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "a475b6f2a19bbbf9fc1b4774ed462ad615bf8fdcb5b04157330538dd655d19d8",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "STMicroelectronics",
      "Package": "TO-263-2",
      "Category": "PMIC",
      "Pins": "3"
    }
  },
  "sections": [
    "hero",
    "viewers",
    "readme",
    "breadcrumbs",
    "info"
  ],
  "discovery_triggers": [
    "l7812cd2t-tr"
  ],
  "discovery_pitch": "L7812CD2T-TR (STMicroelectronics) component page with datasheet-verified CAD.",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
  },
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "l7812cd2t-tr.kicad_sym",
    "l7812cd2t-tr.kicad_mod",
    "l7812cd2t-tr.glb",
    "l7812cd2t-tr.step",
    "l7812cd2t-tr-etched.step",
    "l7812cd2t-tr.lbr",
    "docs/hero.png",
    "docs/l7812cd2t-tr-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html"
  ],
  "visibility": {
    "public": true
  },
  "variants": [
    {
      "mpn": "L7812CD2T-TR",
      "kind": "packaging"
    },
    {
      "mpn": "L7812CD2T-TRACD2T-TR",
      "kind": "packaging"
    },
    {
      "mpn": "L7812CD2T-TRCV",
      "kind": "packaging"
    },
    {
      "mpn": "L7812CD2T-TRACV",
      "kind": "packaging"
    },
    {
      "mpn": "L7812CD2T-TRCP",
      "kind": "packaging"
    },
    {
      "mpn": "L7812CD2T-TRACP",
      "kind": "packaging"
    },
    {
      "mpn": "L7812CD2T-TRCDT-TR",
      "kind": "packaging"
    },
    {
      "mpn": "L7812CD2T-TRACDT-TR",
      "kind": "packaging"
    }
  ],
  "updated_at": "2026-09-24T23:32:10.545Z"
}