main
Ray Set visibility: public b41d996 7d ago
{
  "schema_version": 1,
  "type": "component",
  "slug": "mc79l12abprag",
  "title": "MC79L12ABPRAG",
  "brief": "onsemi Linear Voltage Regulators (LDO), TO-92. 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 supply chip",
    "mc79l12abprag",
    "factory-2.0.0",
    "extractor-text"
  ],
  "component": {
    "mpn": "MC79L12ABPRAG",
    "manufacturer": "onsemi",
    "package": "TO-92",
    "pin_count": 3,
    "category": "Power Supply Chip",
    "subcategory": "Linear Voltage Regulators (LDO)",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8757989889403305984",
    "parts": {
      "symbol": "mc79l12abprag.kicad_sym",
      "footprint": "mc79l12abprag.kicad_mod",
      "model_3d": "mc79l12abprag-hero.glb",
      "model_3d_plain": "mc79l12abprag-etched.glb",
      "model_3d_step": "mc79l12abprag-etched.step",
      "model_3d_step_plain": "mc79l12abprag.step",
      "lbr": "mc79l12abprag.lbr"
    },
    "distributor_links": {
      "lcsc": "C512986",
      "digikey": "MC79L12ABPRAGOSTR-ND",
      "mouser": "863-MC79L12ABPRAG"
    },
    "distributor_check": {
      "checked_at": "2026-10-18T16:41:18Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "MC79L12ABPRAGOSTR-ND",
        "status": "found"
      },
      "mouser": {
        "pn": "863-MC79L12ABPRAG",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "GND",
        "type": "power_in",
        "description": "Ground (common) reference pin; a common ground is required between the input and output voltages, and the regulator has no external sense lead, so ground-loop and lead-resistance drops should be minimized."
      },
      {
        "number": "2",
        "name": "Input",
        "type": "power_in",
        "description": "Negative unregulated input with a maximum rating of −35 V for the −12 V device, which must remain typically 2.0 V above the output voltage even at the low point of the ripple, and should be bypassed with a 0.33 µF or larger capacitor when far from the supply filter."
      },
      {
        "number": "3",
        "name": "Output",
        "type": "power_out",
        "description": "Regulated negative output of −12 V nominal, specified for output currents up to 100 mA, with a 0.1 µF output capacitor recommended to improve stability and transient response."
      }
    ],
    "provenance": {
      "extractor": "extract_pins 0.3",
      "factory_chain": {
        "factory": "2.0.0",
        "extractor": "extract_pins 0.3",
        "primary_model": "claude-haiku-5-5",
        "primary_mode": "text",
        "consensus_model": "claude-sonnet-5-5",
        "consensus": "agreed",
        "guards": "pin_guards 0.1: passed",
        "guard_notes": [
          "extractor flagged: Pinout taken from the page 1 pin list ('Pin 1. Ground, 2. Input, 3. Output'), which applies to the T; The Input pin description cites the −35 V maximum input rating from the Maximum Ratings table (page "
        ],
        "pages_sent": 15,
        "cost_usd": 0.0922,
        "at": "2026-10-18T16:39:13"
      },
      "datasheet": {
        "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8757989889403305984",
        "pages": 15,
        "sha256": "3b8ec4831b4ba3d5",
        "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": "mc79l12abprag.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": "2026-10-18",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "mc79l12abprag-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": "c394082ed62d0a86267b1e93b9b3be27de14decc924b9ed7137e90b358ae2aef",
        "checked": "2026-10-18",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "onsemi",
      "Package": "TO-92",
      "Category": "Power Supply Chip",
      "Pins": "3"
    },
    "characteristics": {
      "version": 1,
      "source": "datasheet",
      "datasheet_sha256": "3b8ec4831b4ba3d58c3e6d225c227c6d03c7841d98169c89a836febf4bc1c9f9",
      "rows": [
        {
          "name": "Output Voltage (TJ = +25 C)",
          "symbol": "VO",
          "kind": "tolerance",
          "unit": "Vdc",
          "min": -11.5,
          "typ": -12,
          "max": -12.5,
          "conditions": "TJ = +25 C",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Input Regulation",
          "symbol": "Regline",
          "kind": "electrical",
          "unit": "mV",
          "min": null,
          "typ": null,
          "max": 250,
          "conditions": "TJ = +25 C; -14.5 Vdc VI -27 Vdc",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Input Regulation",
          "symbol": "Regline",
          "kind": "electrical",
          "unit": "mV",
          "min": null,
          "typ": null,
          "max": 200,
          "conditions": "TJ = +25 C; -16 Vdc VI -27 Vdc",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Load Regulation",
          "symbol": "Regload",
          "kind": "electrical",
          "unit": "mV",
          "min": null,
          "typ": null,
          "max": 100,
          "conditions": "TJ = +25 C, 1.0 mA IO 100 mA",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Load Regulation",
          "symbol": "Regload",
          "kind": "electrical",
          "unit": "mV",
          "min": null,
          "typ": null,
          "max": 50,
          "conditions": "1.0 mA IO 40 mA",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Output Voltage",
          "symbol": "VO",
          "kind": "electrical",
          "unit": "Vdc",
          "min": -11.4,
          "typ": null,
          "max": -12.6,
          "conditions": "-14.5 Vdc VI -27 Vdc, 1.0 mA IO 40 mA",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Input Bias Current",
          "symbol": "IIB",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": null,
          "max": 6.5,
          "conditions": "TJ = +25 C",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Input Bias Current",
          "symbol": "IIB",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": null,
          "max": 6,
          "conditions": "TJ = +125 C",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Input Bias Current Change",
          "symbol": "IIB",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": null,
          "max": 1.5,
          "conditions": "-16 Vdc VI -27 Vdc",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Input Bias Current Change",
          "symbol": "IIB",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": null,
          "max": 0.2,
          "conditions": "1.0 mA IO 40 mA",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Ripple Rejection",
          "symbol": "RR",
          "kind": "electrical",
          "unit": "dB",
          "min": 37,
          "typ": 42,
          "max": null,
          "conditions": "-15 VI -25 Vdc, f = 120 Hz, TJ = +25 C",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Input Voltage (-12 V device)",
          "symbol": "VI",
          "kind": "absolute_maximum",
          "unit": "Vdc",
          "min": -35,
          "typ": null,
          "max": null,
          "conditions": "-12, -15, -18 V devices",
          "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": "Junction Temperature",
          "symbol": "TJ",
          "kind": "absolute_maximum",
          "unit": "C",
          "min": null,
          "typ": null,
          "max": 150,
          "conditions": "",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Operating Junction Temperature (MC79LXXAB)",
          "symbol": "TJ",
          "kind": "recommended_operating",
          "unit": "C",
          "min": -40,
          "typ": null,
          "max": 125,
          "conditions": "MC79LXXAB",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Output Noise Voltage",
          "symbol": "Vn",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": 80,
          "max": null,
          "conditions": "TA = +25 C, 10 Hz f 100 kHz",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Dropout Voltage",
          "symbol": "|VI-VO|",
          "kind": "electrical",
          "unit": "Vdc",
          "min": null,
          "typ": 1.7,
          "max": null,
          "conditions": "IO = 40 mA, TJ = +25 C",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Thermal Resistance, Junction-to-Ambient (TO-92, Case 29)",
          "symbol": "RJA",
          "kind": "thermal",
          "unit": "C/W",
          "min": null,
          "typ": 160,
          "max": null,
          "conditions": "TO-92 Case 29, TA = 25 C",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Thermal Resistance, Junction-to-Case (TO-92, Case 29)",
          "symbol": "RJC",
          "kind": "thermal",
          "unit": "C/W",
          "min": null,
          "typ": 83,
          "max": null,
          "conditions": "TO-92 Case 29",
          "source_page": 2,
          "source": "datasheet"
        }
      ]
    }
  },
  "variants": [],
  "sections": [
    "hero",
    "viewers",
    "readme",
    "breadcrumbs",
    "info"
  ],
  "discovery_triggers": [
    "mc79l12abprag"
  ],
  "discovery_pitch": "MC79L12ABPRAG (onsemi) component page: datasheet pinout, KiCad symbol, footprint and 3D.",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
  },
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "mc79l12abprag.kicad_sym",
    "mc79l12abprag.kicad_mod",
    "mc79l12abprag.glb",
    "mc79l12abprag.step",
    "mc79l12abprag.lbr",
    "docs/hero.png",
    "docs/mc79l12abprag-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "mc79l12abprag-hero.glb",
    "mc79l12abprag-hero.overlay.json",
    "mc79l12abprag-etched.glb"
  ],
  "visibility": {
    "public": true
  }
}