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Ray Set visibility: public a9ba811 7d ago
{
  "schema_version": 1,
  "type": "component",
  "slug": "78d12g-tn3-r",
  "title": "78D12G-TN3-R",
  "brief": "UTC Unisonic Tech Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, TO-252-2(DPAK). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.1.0",
  "license": "CC-BY-SA-4.0",
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    "extractor-text"
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  "component": {
    "mpn": "78D12G-TN3-R",
    "manufacturer": "UTC Unisonic Tech",
    "package": "TO-252-2(DPAK)",
    "pin_count": 3,
    "category": "Power Management (PMIC)",
    "subcategory": "Voltage Regulators - Linear, Low Drop Out (LDO) Regulators",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588917012113838080",
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      "model_3d_step_plain": "78d12g-tn3-r.step",
      "lbr": "78d12g-tn3-r.lbr"
    },
    "distributor_links": {
      "lcsc": "C696087"
    },
    "distributor_check": {
      "checked_at": "2026-10-18T16:34:34Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "quota"
      },
      "mouser": {
        "pn": null,
        "status": "quota"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "INPUT",
        "type": "power_in",
        "description": "Unregulated input voltage to the regulator, with an absolute maximum rating of 35 V and a recommended bypass capacitor CI = 0.33 µF placed as close to the regulator as possible."
      },
      {
        "number": "2",
        "name": "GND",
        "type": "power_in",
        "description": "Ground (common) reference pin for the regulator, shared by the input and output return paths."
      },
      {
        "number": "3",
        "name": "OUTPUT",
        "type": "power_out",
        "description": "Regulated fixed output voltage (12 V for the 78D12 part) with output current up to 0.5 A, with a recommended output capacitor CO = 0.1 µF for 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: Package naming mismatch: the MPN suffix TN3 maps to package 'TO-252' in the ordering table (page 1),; The datasheet has no pinout drawing for TO-252; pin numbers and functions come only from the orderin; Pin descriptions are based on the typical application circuit (page 3) and the absolute maximum rati"
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        "pages_sent": 10,
        "cost_usd": 0.0477,
        "at": "2026-10-18T16:34:21"
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        "pages": 10,
        "sha256": "5385d4bc09a2446e",
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      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 3,
        "described": 3,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
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        "role": "plain",
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        "seat": "z = 0",
        "extents_mm": [
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        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "3eb4c99603a4fe837c2fe9308bc174769ded87a785a0df48d2dc441432ee8b4c",
        "checked": "2026-10-18",
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        "checked": "2026-10-18",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
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  },
  "metadata": {
    "specs": {
      "Manufacturer": "UTC Unisonic Tech",
      "Package": "TO-252-2(DPAK)",
      "Category": "Power Management (PMIC)",
      "Pins": "3"
    },
    "characteristics": {
      "version": 1,
      "source": "datasheet",
      "datasheet_sha256": "5385d4bc09a2446ec9a4cd16384a53bd32a06025c722b4e9e1363803833ca49e",
      "rows": [
        {
          "name": "Output Voltage (IOUT=5mA~0.5A)",
          "symbol": "VOUT",
          "kind": "electrical",
          "unit": "V",
          "min": 11.52,
          "typ": 12,
          "max": 12.48,
          "conditions": "IOUT=5mA~0.5A",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Output Voltage (line range)",
          "symbol": "VOUT",
          "kind": "electrical",
          "unit": "V",
          "min": 11.4,
          "typ": null,
          "max": 12.6,
          "conditions": "VIN =14.5~27V, IOUT=5mA~0.5A",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Load Regulation",
          "symbol": "ΔVOUT",
          "kind": "electrical",
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          "conditions": "IOUT=5mA~0.5A",
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        {
          "name": "Load Regulation",
          "symbol": "ΔVOUT",
          "kind": "electrical",
          "unit": "mV",
          "min": null,
          "typ": null,
          "max": 60,
          "conditions": "IOUT=5mA~200mA",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Line Regulation",
          "symbol": "ΔVOUT",
          "kind": "electrical",
          "unit": "mV",
          "min": null,
          "typ": null,
          "max": 120,
          "conditions": "VIN=14.5~30V",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Quiescent Current",
          "symbol": "IQ",
          "kind": "electrical",
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          "min": null,
          "typ": null,
          "max": 8,
          "conditions": "IOUT=0.5A",
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        },
        {
          "name": "Quiescent Current Change",
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          "min": null,
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          "max": 1,
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          "source_page": 6,
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        },
        {
          "name": "Quiescent Current Change",
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        },
        {
          "name": "Ripple Rejection",
          "symbol": "RR",
          "kind": "electrical",
          "unit": "dB",
          "min": 52,
          "typ": 72,
          "max": null,
          "conditions": "VIN =15~25V, f=120Hz",
          "source_page": 6,
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        {
          "name": "Input Voltage",
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          "kind": "absolute_maximum",
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          "source_page": 4,
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        {
          "name": "Output Current",
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          "unit": "A",
          "min": null,
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          "max": 0.5,
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          "source_page": 4,
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        },
        {
          "name": "Power Dissipation (TO-251/TO-252)",
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          "unit": "W",
          "min": null,
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          "max": 10,
          "conditions": "TC=25°C",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Operating Junction Temperature",
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          "unit": "°C",
          "min": -40,
          "typ": null,
          "max": 150,
          "conditions": "",
          "source_page": 4,
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        },
        {
          "name": "Storage Temperature",
          "symbol": "TSTG",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": -65,
          "typ": null,
          "max": 150,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Junction to Case (TO-251/TO-252)",
          "symbol": "θJC",
          "kind": "thermal",
          "unit": "°C/W",
          "min": null,
          "typ": 12.5,
          "max": null,
          "conditions": "TO-251/TO-252",
          "source_page": 4,
          "source": "datasheet"
        }
      ]
    }
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  "discovery_pitch": "78D12G-TN3-R (UTC Unisonic Tech) component page: datasheet pinout, KiCad symbol, footprint and 3D.",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
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