CJ78L12-TA

{
  "schema_version": 1,
  "type": "component",
  "slug": "cj78l12-ta",
  "title": "CJ78L12-TA",
  "brief": "Changjiang Electronics Tech (CJ) Linear Voltage Regulators (LDO), TO-92-2.54mm. 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",
    "power management ics",
    "cj78l12-ta",
    "factory-2.0.0",
    "extractor-text"
  ],
  "component": {
    "mpn": "CJ78L12-TA",
    "manufacturer": "Changjiang Electronics Tech (CJ)",
    "package": "TO-92-2.54mm",
    "pin_count": 3,
    "category": "Power Management ICs",
    "subcategory": "Linear Voltage Regulators (LDO)",
    "datasheet": "https://datasheet.lcsc.com/datasheet/pdf/432c7c39592c4a168b01e79d5ac1de1b.pdf",
    "parts": {
      "symbol": "cj78l12-ta.kicad_sym",
      "footprint": "cj78l12-ta.kicad_mod",
      "model_3d": "cj78l12-ta-hero.glb",
      "model_3d_plain": "cj78l12-ta-etched.glb",
      "model_3d_step": "cj78l12-ta-etched.step",
      "model_3d_step_plain": "cj78l12-ta.step",
      "lbr": "cj78l12-ta.lbr"
    },
    "distributor_links": {
      "lcsc": "C147848"
    },
    "distributor_check": {
      "checked_at": "2026-10-22T21:14:36Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "quota"
      },
      "mouser": {
        "pn": null,
        "status": "quota"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "OUT",
        "type": "power_out",
        "description": "Regulated 12V output (Vo 11.5V min to 12.5V max at 25°C), maximum output current 0.1A, with a 0.1µF bypass capacitor recommended close to the regulator."
      },
      {
        "number": "2",
        "name": "GND",
        "type": "power_in",
        "description": "Ground reference pin, common to the input and output bypass capacitors."
      },
      {
        "number": "3",
        "name": "IN",
        "type": "power_in",
        "description": "Unregulated input voltage, absolute maximum 35V, with a 0.33µF bypass capacitor recommended close to the regulator."
      }
    ],
    "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": "vision",
        "consensus_model": "claude-opus-5-5",
        "consensus": "agreed",
        "guards": "pin_guards 0.1: passed",
        "guard_notes": [
          "extractor flagged: The ordering table lists CJ78L12-TA as TO-92 in tape packing. The hint says TO-92-2.54mm, but the da",
          "vision extraction: provenance cannot be text-verified; needs consensus"
        ],
        "pages_sent": 5,
        "cost_usd": 0.2808,
        "at": "2026-10-22T21:14:26"
      },
      "datasheet": {
        "url": "https://datasheet.lcsc.com/datasheet/pdf/432c7c39592c4a168b01e79d5ac1de1b.pdf",
        "pages": 5,
        "sha256": "f0e0f44257281103",
        "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": "cj78l12-ta.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "body on z = 0, through-hole leads below",
        "extents_mm": [
          4.83,
          3.745,
          9.8
        ],
        "zmin_mm": -2.5,
        "centre_offset_mm": 0.542,
        "footprint_binding": "identity",
        "sha256": "f0b61c32ecbf0067157adc5a3d4966ceadf5d6dafe93c51af35f76c41c71a54a",
        "checked": "2026-10-22",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "cj78l12-ta-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "body on z = 0, through-hole leads below",
        "extents_mm": [
          4.83,
          3.745,
          9.8
        ],
        "zmin_mm": -2.5,
        "centre_offset_mm": 0.542,
        "footprint_binding": "identity",
        "sha256": "8054c3986f3725b0faa0ba052f5fb7d1aa8971d0333c64dd145479dfa60cb1f2",
        "checked": "2026-10-22",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "Changjiang Electronics Tech (CJ)",
      "Package": "TO-92-2.54mm",
      "Category": "Power Management ICs",
      "Pins": "3"
    }
  },
  "variants": [],
  "sections": [
    "hero",
    "viewers",
    "readme",
    "breadcrumbs",
    "info"
  ],
  "discovery_triggers": [
    "cj78l12-ta"
  ],
  "discovery_pitch": "CJ78L12-TA (Changjiang Electronics Tech (CJ)) 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",
    "cj78l12-ta.kicad_sym",
    "cj78l12-ta.kicad_mod",
    "cj78l12-ta.glb",
    "cj78l12-ta.step",
    "cj78l12-ta.lbr",
    "docs/hero.png",
    "docs/cj78l12-ta-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "cj78l12-ta-hero.glb",
    "cj78l12-ta-hero.overlay.json",
    "cj78l12-ta-etched.glb"
  ],
  "visibility": {
    "public": true
  }
}