2SA812G

{
  "schema_version": 1,
  "type": "component",
  "slug": "2sa812g",
  "title": "2SA812G",
  "brief": "Galaxy Bipolar Transistors - BJT, SOT-23. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.1.0",
  "license": "CC-BY-SA-4.0",
  "tags": [
    "component",
    "triode-mos tube-transistor",
    "2sa812g"
  ],
  "component": {
    "mpn": "2SA812G",
    "manufacturer": "Galaxy",
    "package": "SOT-23",
    "pin_count": 3,
    "category": "Triode/MOS Tube/Transistor",
    "subcategory": "Bipolar Transistors - BJT",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588884542321274880",
    "parts": {
      "symbol": "2sa812g.kicad_sym",
      "footprint": "2sa812g.kicad_mod",
      "model_3d": "2sa812g-etched.glb",
      "model_3d_plain": "2sa812g.glb",
      "model_3d_step": "2sa812g-etched.step",
      "model_3d_step_plain": "2sa812g.step",
      "lbr": "2sa812g.lbr"
    },
    "distributor_links": {},
    "pins": [
      {
        "number": "1",
        "name": "B",
        "type": "input",
        "description": "Base. Control terminal of the PNP BJT; VBE ≈ -0.62V typ. at IC=-1mA, VCE=-6V. Emitter-base breakdown VEBO = -5V."
      },
      {
        "number": "2",
        "name": "E",
        "type": "passive",
        "description": "Emitter. Common terminal for the PNP; conducts IC+IB (up to ~100mA continuous). Reference for VBE and VCE."
      },
      {
        "number": "3",
        "name": "C",
        "type": "passive",
        "description": "Collector. VCEO = -50V max, VCBO = -60V max, IC = -100mA continuous, PC = 200mW at Ta=25°C."
      }
    ],
    "provenance": {
      "extractor": "ds2sf",
      "datasheet": {
        "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588884542321274880",
        "pages": 4,
        "sha256": "0ca13079674b75aa",
        "source_tier": "lcsc"
      },
      "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"
    },
    "models_3d": [
      {
        "file": "2sa812g.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          2.5,
          3.0,
          1.2
        ],
        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "dd5d1711204e1d8d26cd11490923bd84340820baa69538c385a4300ec2539bc0",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "2sa812g-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          2.5,
          3.0,
          1.2
        ],
        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "70a8b912e2be904dad80c2efde65c87e77d50dc0c15300e7ff45286affb10308",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "Galaxy",
      "Package": "SOT-23",
      "Category": "Triode/MOS Tube/Transistor",
      "Pins": "3"
    }
  },
  "variants": [
    {
      "mpn": "2SA812G",
      "kind": "packaging"
    },
    {
      "mpn": "2SA812GG",
      "kind": "packaging"
    }
  ],
  "sections": [
    "hero",
    "viewers",
    "readme",
    "breadcrumbs",
    "info"
  ],
  "discovery_triggers": [
    "2sa812g"
  ],
  "discovery_pitch": "2SA812G (Galaxy) 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",
    "2sa812g.kicad_sym",
    "2sa812g.kicad_mod",
    "2sa812g.glb",
    "2sa812g.step",
    "2sa812g.lbr",
    "docs/hero.png",
    "docs/2sa812g-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html"
  ],
  "visibility": {
    "public": true
  },
  "updated_at": "2026-09-24T14:36:43.355Z"
}