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Ray Set visibility: public bf08f82 13d ago
{
  "schema_version": 1,
  "type": "component",
  "slug": "cj78l09c-tab-abg",
  "title": "CJ78L09C-TAB-ABG",
  "brief": "Changjing Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, 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 management (pmic)",
    "cj78l09c-tab-abg",
    "factory-2.0.0",
    "extractor-text"
  ],
  "component": {
    "mpn": "CJ78L09C-TAB-ABG",
    "manufacturer": "Changjing",
    "package": "TO-92",
    "pin_count": 3,
    "category": "Power Management (PMIC)",
    "subcategory": "Voltage Regulators - Linear, Low Drop Out (LDO) Regulators",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8590927199975657472",
    "parts": {
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      "lbr": "cj78l09c-tab-abg.lbr"
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    "distributor_links": {
      "lcsc": "C20622071"
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    "distributor_check": {
      "checked_at": "2026-10-21T02:13:36Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "no match"
      },
      "mouser": {
        "pn": null,
        "status": "no match"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "OUT",
        "type": "output",
        "description": "Output of the regulator, a fixed 9.0V output for this CJ78L09C variant (30V maximum input for VOUT below 10V, 100mA maximum output current)."
      },
      {
        "number": "2",
        "name": "GND",
        "type": "power_in",
        "description": "Regulator ground; the datasheet specifies no separate limit for this pin, and the 0.33µF input and 0.1µF output capacitors are returned to it."
      },
      {
        "number": "3",
        "name": "IN",
        "type": "input",
        "description": "Input to the device; the CJ78L09C recommended input voltage range is up to 30V, with a 36V absolute maximum input voltage."
      }
    ],
    "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: The MPN CJ78L09C-TAB-ABG is listed in the Orderable Information table (page 3) as TO-92, Bulk, 1000 ; The datasheet gives only one-line functional descriptions for the pins. The limits in the descriptio"
        ],
        "pages_sent": 30,
        "cost_usd": 0.0909,
        "at": "2026-10-21T02:09:32"
      },
      "datasheet": {
        "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8590927199975657472",
        "pages": 30,
        "sha256": "ccb056fb5d1abe3f",
        "source_tier": "lcsc"
      },
      "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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      "footprint": "viewers/footprint.html"
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        "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": "2026-10-21",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
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      {
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        "sha256": "53e131c4161b989be0532d984e0e43e0af4af794272bdae87f3345e49818fff1",
        "checked": "2026-10-21",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
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    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "Changjing",
      "Package": "TO-92",
      "Category": "Power Management (PMIC)",
      "Pins": "3"
    },
    "characteristics": {
      "version": 1,
      "source": "datasheet",
      "datasheet_sha256": "ccb056fb5d1abe3f7e96e22a597383b1ac5845d151b196f634e733a611b05a51",
      "rows": [
        {
          "name": "Output voltage (±3% grade, TJ = 25°C)",
          "symbol": "VOUT",
          "kind": "electrical",
          "unit": "V",
          "min": 8.73,
          "typ": 9,
          "max": 9.27,
          "conditions": "TJ = 25°C, ±3% grade",
          "source_page": 11,
          "source": "datasheet"
        },
        {
          "name": "Output voltage over line, load and temperature",
          "symbol": "VOUT",
          "kind": "electrical",
          "unit": "V",
          "min": 8.55,
          "typ": 9,
          "max": 9.45,
          "conditions": "VIN = 12 to 24V, IOUT = 1 to 100mA, TJ = -40 to 125°C, PD ≤ 0.75W",
          "source_page": 11,
          "source": "datasheet"
        },
        {
          "name": "Output current",
          "symbol": "IOUT",
          "kind": "electrical",
          "unit": "mA",
          "min": 100,
          "typ": null,
          "max": null,
          "conditions": "TJ = 25°C",
          "source_page": 11,
          "source": "datasheet"
        },
        {
          "name": "Quiescent current",
          "symbol": "IQ",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": 3,
          "max": 5.5,
          "conditions": "IOUT = 0mA",
          "source_page": 11,
          "source": "datasheet"
        },
        {
          "name": "Quiescent current change (line)",
          "symbol": "ΔIQ",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": null,
          "max": 1.5,
          "conditions": "VIN = 13 to 24V, TJ = -40 to 125°C",
          "source_page": 11,
          "source": "datasheet"
        },
        {
          "name": "Quiescent current change (load)",
          "symbol": "ΔIQ",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": null,
          "max": 0.1,
          "conditions": "IOUT = 1 to 40mA, TJ = -40 to 125°C",
          "source_page": 11,
          "source": "datasheet"
        },
        {
          "name": "Dropout voltage",
          "symbol": "VDO",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": 1.7,
          "max": 2,
          "conditions": "IOUT = 40mA",
          "source_page": 11,
          "source": "datasheet"
        },
        {
          "name": "Dropout voltage",
          "symbol": "VDO",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": 1.8,
          "max": 2.3,
          "conditions": "IOUT = 100mA",
          "source_page": 11,
          "source": "datasheet"
        },
        {
          "name": "Line regulation",
          "symbol": "ΔVLINE",
          "kind": "electrical",
          "unit": "mV",
          "min": null,
          "typ": 8,
          "max": 150,
          "conditions": "VIN = 12 to 24V",
          "source_page": 11,
          "source": "datasheet"
        },
        {
          "name": "Load regulation",
          "symbol": "ΔVLOAD",
          "kind": "electrical",
          "unit": "mV",
          "min": null,
          "typ": 10,
          "max": 70,
          "conditions": "IOUT = 1 to 100mA",
          "source_page": 11,
          "source": "datasheet"
        },
        {
          "name": "Ripple rejection",
          "symbol": "RR",
          "kind": "electrical",
          "unit": "dB",
          "min": 42,
          "typ": 51,
          "max": null,
          "conditions": "VIN = 15 to 25V, f = 120Hz",
          "source_page": 11,
          "source": "datasheet"
        },
        {
          "name": "Input voltage",
          "symbol": "VIN",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 30,
          "conditions": "",
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          "source": "datasheet"
        },
        {
          "name": "Input voltage range (CJ78L09C)",
          "symbol": "VIN",
          "kind": "recommended_operating",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 30,
          "conditions": "",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Maximum input voltage",
          "symbol": "VIN MAX",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 36,
          "conditions": "",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Maximum junction temperature",
          "symbol": "TJ Max",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": null,
          "typ": null,
          "max": 150,
          "conditions": "",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Storage temperature",
          "symbol": "Tstg",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": -65,
          "typ": null,
          "max": 150,
          "conditions": "",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Soldering temperature",
          "symbol": "Tsolder",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": null,
          "typ": null,
          "max": 260,
          "conditions": "10s",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Operating junction temperature",
          "symbol": "TJ",
          "kind": "recommended_operating",
          "unit": "°C",
          "min": -40,
          "typ": null,
          "max": 125,
          "conditions": "",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Output voltage tolerance at TJ = 25°C (±3% grade)",
          "symbol": "",
          "kind": "tolerance",
          "unit": "%",
          "min": -3,
          "typ": null,
          "max": 3,
          "conditions": "TJ = 25°C, ±3% grade",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Output voltage tolerance over temperature range",
          "symbol": "",
          "kind": "tolerance",
          "unit": "%",
          "min": -5,
          "typ": null,
          "max": 5,
          "conditions": "over the temperature range",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Junction-to-ambient thermal resistance (TO-92)",
          "symbol": "RΘJA",
          "kind": "thermal",
          "unit": "°C/W",
          "min": null,
          "typ": 167.2,
          "max": null,
          "conditions": "TO-92, still air, TA = 25°C, 1 in² FR-4 board with 2 oz copper",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "Junction-to-case thermal resistance (TO-92)",
          "symbol": "RΘJC",
          "kind": "thermal",
          "unit": "°C/W",
          "min": null,
          "typ": 40.3,
          "max": null,
          "conditions": "TO-92",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "Reference maximum power dissipation for continuous operation (TO-92)",
          "symbol": "PD Ref",
          "kind": "thermal",
          "unit": "W",
          "min": null,
          "typ": 0.6,
          "max": null,
          "conditions": "TO-92, continuous operation",
          "source_page": 7,
          "source": "datasheet"
        }
      ]
    }
  },
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  "discovery_pitch": "CJ78L09C-TAB-ABG (Changjing) component page: datasheet pinout, KiCad symbol, footprint and 3D.",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
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