LM4040D25FTA

{
  "schema_version": 1,
  "type": "component",
  "slug": "lm4040d25fta",
  "title": "LM4040D25FTA",
  "brief": "Diodes Incorporated Voltage Reference, SOT-23. 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)",
    "lm4040d25fta",
    "factory-2.0.0",
    "extractor-text"
  ],
  "component": {
    "mpn": "LM4040D25FTA",
    "manufacturer": "Diodes Incorporated",
    "package": "SOT-23",
    "pin_count": 3,
    "category": "Power Management (PMIC)",
    "subcategory": "Voltage Reference",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8560078563719204864",
    "parts": {
      "symbol": "lm4040d25fta.kicad_sym",
      "footprint": "lm4040d25fta.kicad_mod",
      "model_3d": "lm4040d25fta-hero.glb",
      "model_3d_plain": "lm4040d25fta.glb",
      "model_3d_step": "lm4040d25fta-etched.step",
      "model_3d_step_plain": "lm4040d25fta.step",
      "lbr": "lm4040d25fta.lbr"
    },
    "distributor_links": {
      "lcsc": "C107244",
      "digikey": "LM4040D25FTR-ND",
      "mouser": "522-LM4040D25FTA"
    },
    "distributor_check": {
      "checked_at": "2026-10-09T12:21:09Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "LM4040D25FTR-ND",
        "status": "found",
        "lifecycle": "Active"
      },
      "mouser": {
        "pn": "522-LM4040D25FTA",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "Cathode",
        "type": "passive",
        "description": "Cathode of the shunt reference, where the reverse breakdown voltage VREF (2.5V for the -25 version) appears relative to the Anode, with operating reverse current of 60µA to 15mA."
      },
      {
        "number": "2",
        "name": "Anode",
        "type": "passive",
        "description": "Anode of the shunt reference and the voltage reference point for all specified voltages; pin 3 may be connected to this pin."
      },
      {
        "number": "3",
        "name": "NC",
        "type": "unconnected",
        "description": "Pin 3 must be left floating or connected to pin 2 (Anode), since the die is attached to pin 3 giving electrical contact between pins 2 and 3."
      }
    ],
    "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": "text+vision",
        "consensus_model": "claude-opus-5-5",
        "consensus": "agreed",
        "guards": "pin_guards 0.1: passed",
        "guard_notes": [
          "extractor flagged: Pin 3 is marked only with an asterisk (must be left floating or tied to pin 2) and has no name in th; Cathode and Anode are typed passive because the datasheet gives no KiCad ERC class for a two-termina",
          "vision extraction: provenance cannot be text-verified; needs consensus"
        ],
        "pages_sent": 16,
        "cost_usd": 0.2234,
        "at": "2026-10-09T12:19:39"
      },
      "datasheet": {
        "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8560078563719204864",
        "pages": 16,
        "sha256": "273ea3e61e9ec2d9",
        "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": "lm4040d25fta.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          2.5,
          3,
          1.2
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "dd5d1711204e1d8d26cd11490923bd84340820baa69538c385a4300ec2539bc0",
        "checked": "2026-10-09",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "lm4040d25fta-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          2.5,
          3,
          1.2
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "b16f769ae91fb2d045fa41cceda05b5642f46da17c7e9dbf20044eb19913967b",
        "checked": "2026-10-09",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "Diodes Incorporated",
      "Package": "SOT-23",
      "Category": "Power Management (PMIC)",
      "Pins": "3"
    },
    "characteristics": {
      "version": 1,
      "source": "datasheet",
      "datasheet_sha256": "273ea3e61e9ec2d9",
      "rows": [
        {
          "name": "Reverse Breakdown Voltage Tolerance (+25°C)",
          "symbol": "VREF",
          "kind": "tolerance",
          "unit": "mV",
          "min": -25,
          "typ": 5,
          "max": 25,
          "conditions": "IR = 100µA, +25°C",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Reverse Breakdown Voltage Tolerance (-40 to +85°C)",
          "symbol": "VREF",
          "kind": "tolerance",
          "unit": "mV",
          "min": -49,
          "typ": 21,
          "max": 49,
          "conditions": "IR = 100µA, -40 to +85°C",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Reverse Breakdown Voltage Tolerance (-40 to +125°C)",
          "symbol": "VREF",
          "kind": "tolerance",
          "unit": "mV",
          "min": -63,
          "typ": 30,
          "max": 63,
          "conditions": "IR = 100µA, -40 to +125°C",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Minimum Operating Current (+25°C)",
          "symbol": "IRMIN",
          "kind": "electrical",
          "unit": "µA",
          "min": null,
          "typ": 45,
          "max": 65,
          "conditions": "+25°C",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Minimum Operating Current (-40 to +85°C)",
          "symbol": "IRMIN",
          "kind": "electrical",
          "unit": "µA",
          "min": null,
          "typ": null,
          "max": 70,
          "conditions": "-40 to +85°C",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Minimum Operating Current (-40 to +125°C)",
          "symbol": "IRMIN",
          "kind": "electrical",
          "unit": "µA",
          "min": null,
          "typ": null,
          "max": 73,
          "conditions": "-40 to +125°C",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Average Reverse Breakdown Voltage Temperature Coefficient",
          "symbol": "ΔVR/ΔT",
          "kind": "temperature_coefficient",
          "unit": "ppm/°C",
          "min": -150,
          "typ": 15,
          "max": 150,
          "conditions": "IR = 1mA",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Reverse Breakdown Change with Current (IRMIN ≤ IR ≤ 1mA, +25°C)",
          "symbol": "ΔVR/ΔIR",
          "kind": "electrical",
          "unit": "mV",
          "min": null,
          "typ": 0.3,
          "max": 1,
          "conditions": "IRMIN ≤ IR ≤ 1mA, +25°C",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Reverse Breakdown Change with Current (IRMIN ≤ IR ≤ 1mA, -40 to +85°C)",
          "symbol": "ΔVR/ΔIR",
          "kind": "electrical",
          "unit": "mV",
          "min": null,
          "typ": null,
          "max": 1.2,
          "conditions": "IRMIN ≤ IR ≤ 1mA, -40 to +85°C",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Reverse Breakdown Change with Current (IRMIN ≤ IR ≤ 1mA, -40 to +125°C)",
          "symbol": "ΔVR/ΔIR",
          "kind": "electrical",
          "unit": "mV",
          "min": null,
          "typ": null,
          "max": 1.2,
          "conditions": "IRMIN ≤ IR ≤ 1mA, -40 to +125°C",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Reverse Breakdown Change with Current (1mA ≤ IR ≤ 15mA, +25°C)",
          "symbol": "ΔVR/ΔIR",
          "kind": "electrical",
          "unit": "mV",
          "min": null,
          "typ": 2.5,
          "max": 8,
          "conditions": "1mA ≤ IR ≤ 15mA, +25°C",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Reverse Breakdown Change with Current (1mA ≤ IR ≤ 15mA, -40 to +85°C)",
          "symbol": "ΔVR/ΔIR",
          "kind": "electrical",
          "unit": "mV",
          "min": null,
          "typ": null,
          "max": 10,
          "conditions": "1mA ≤ IR ≤ 15mA, -40 to +85°C",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Reverse Breakdown Change with Current (1mA ≤ IR ≤ 15mA, -40 to +125°C)",
          "symbol": "ΔVR/ΔIR",
          "kind": "electrical",
          "unit": "mV",
          "min": null,
          "typ": null,
          "max": 10,
          "conditions": "1mA ≤ IR ≤ 15mA, -40 to +125°C",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Dynamic Output Impedance",
          "symbol": "ZR",
          "kind": "electrical",
          "unit": "Ω",
          "min": null,
          "typ": 0.3,
          "max": 1.1,
          "conditions": "IR = 1mA, f = 120Hz, IAC = 0.1IR",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Reverse Current (recommended)",
          "symbol": "",
          "kind": "recommended_operating",
          "unit": "mA",
          "min": 0.06,
          "typ": null,
          "max": 15,
          "conditions": "",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Operating Ambient Temperature Range (recommended)",
          "symbol": "",
          "kind": "recommended_operating",
          "unit": "°C",
          "min": -40,
          "typ": null,
          "max": 125,
          "conditions": "",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Continuous Reverse Current",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "mA",
          "min": null,
          "typ": null,
          "max": 20,
          "conditions": "",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Continuous Forward Current",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "mA",
          "min": null,
          "typ": null,
          "max": 10,
          "conditions": "",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Operating Junction Temperature",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": -40,
          "typ": null,
          "max": 150,
          "conditions": "",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Storage Temperature",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": -55,
          "typ": null,
          "max": 150,
          "conditions": "",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Thermal Resistance Junction-to-Ambient",
          "symbol": "θJA",
          "kind": "thermal",
          "unit": "°C/W",
          "min": null,
          "typ": 380,
          "max": null,
          "conditions": "SOT23",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Power Dissipation",
          "symbol": "PDIS",
          "kind": "thermal",
          "unit": "mW",
          "min": null,
          "typ": 330,
          "max": null,
          "conditions": "TA = +25°C, TJ = +125°C",
          "source_page": 2,
          "source": "datasheet"
        }
      ]
    }
  },
  "variants": [],
  "sections": [
    "hero",
    "viewers",
    "readme",
    "breadcrumbs",
    "info"
  ],
  "discovery_triggers": [
    "lm4040d25fta"
  ],
  "discovery_pitch": "LM4040D25FTA (Diodes Incorporated) 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",
    "lm4040d25fta.kicad_sym",
    "lm4040d25fta.kicad_mod",
    "lm4040d25fta.glb",
    "lm4040d25fta.step",
    "lm4040d25fta.lbr",
    "docs/hero.png",
    "docs/lm4040d25fta-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "lm4040d25fta-hero.glb",
    "lm4040d25fta-hero.overlay.json"
  ],
  "visibility": {
    "public": true
  }
}