main
Ray Set visibility: public df4b926
{
  "schema_version": 1,
  "type": "component",
  "slug": "ddtc144gua-7-f",
  "title": "DDTC144GUA-7-F",
  "brief": "Diodes Incorporated Digital Transistors, SOT-323. 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",
    "transistors-thyristors",
    "ddtc144gua-7-f",
    "factory-2.0.0",
    "extractor-text"
  ],
  "component": {
    "mpn": "DDTC144GUA-7-F",
    "manufacturer": "Diodes Incorporated",
    "package": "SOT-323",
    "pin_count": 3,
    "category": "Transistors/Thyristors",
    "subcategory": "Digital Transistors",
    "datasheet": "https://www.diodes.com/assets/Datasheets/DDTC144GUA-7-F.pdf",
    "parts": {
      "symbol": "ddtc144gua-7-f.kicad_sym",
      "footprint": "ddtc144gua-7-f.kicad_mod",
      "model_3d": "ddtc144gua-7-f-hero.glb",
      "model_3d_plain": "ddtc144gua-7-f.glb",
      "model_3d_step": "ddtc144gua-7-f-etched.step",
      "model_3d_step_plain": "ddtc144gua-7-f.step",
      "lbr": "ddtc144gua-7-f.lbr"
    },
    "distributor_links": {
      "lcsc": "C5245897",
      "digikey": "31-DDTC144GUA-7-FTR-ND",
      "mouser": "621-DDTC144GUA-7-F"
    },
    "distributor_check": {
      "checked_at": "2026-11-13T11:30:21Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "31-DDTC144GUA-7-FTR-ND",
        "status": "found"
      },
      "mouser": {
        "pn": "621-DDTC144GUA-7-F",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "B",
        "type": "input",
        "description": "Base input, connected to the transistor base with the internal R2 bleeder resistor (47kΩ nominal, ±30%) from base to emitter; VEBO max 5 V."
      },
      {
        "number": "2",
        "name": "E",
        "type": "passive",
        "description": "Emitter of the NPN transistor, normally tied to ground; R2 bleeder resistor connects between base and emitter."
      },
      {
        "number": "3",
        "name": "C",
        "type": "passive",
        "description": "Collector of the NPN transistor; VCEO 50 V, VCBO 50 V and IC max 100 mA."
      }
    ],
    "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: The datasheet drawing labels the leads B, E and C (B bottom-left, E bottom-right, C single lead on t",
          "vision extraction: provenance cannot be text-verified; needs consensus"
        ],
        "pages_sent": 3,
        "cost_usd": 0.0812,
        "at": "2026-11-13T11:30:10"
      },
      "datasheet": {
        "url": "https://www.diodes.com/assets/Datasheets/DDTC144GUA-7-F.pdf",
        "pages": 3,
        "sha256": "a613f194df3f51a9",
        "source_tier": "mfr"
      },
      "cad": "land: KiCad official (CC-BY-SA 4.0); 3D: generated from the datasheet",
      "model_3d_generated": {
        "generator": "factory/gen_pkg3d.py",
        "family": "SOT-563",
        "height_mm": 0.95,
        "height_basis": "datasheet A, midpoint of min and max",
        "standoff_mm": 0.05,
        "standoff_basis": "family nominal (no datasheet A1 read)",
        "lead_width_mm": 0.27,
        "lead_width_basis": "default: 0.6 x pad width across the lead, at most 0.45 x pitch 1.30 mm; a tab 0.9 x its width (no datasheet b read)",
        "lead_thickness_mm": 0.1,
        "lead_thickness_basis": "default for pitch 1.30 mm, height 0.95 mm (no datasheet c read)"
      },
      "pins": {
        "total": 3,
        "described": 3,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
      {
        "file": "ddtc144gua-7-f.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          2,
          2.1,
          0.95
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "d4a6324c5f740ad450abf396595d2bd57231aa665dd49ac3538df1d54e6f4a88",
        "checked": "2026-11-13",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "ddtc144gua-7-f-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          2,
          2.1,
          0.95
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "5e0ff959618e7d9411076daee6d432dfded2ef9a22704a6c69fdcba0ecb8a810",
        "checked": "2026-11-13",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ],
    "package_dims": {
      "package_code": "SOT-323",
      "source_page": 1,
      "D": {
        "nom_mm": 2.1,
        "range_mm": [
          2,
          2.2
        ]
      },
      "E1": {
        "nom_mm": 1.25,
        "range_mm": [
          1.15,
          1.35
        ]
      },
      "E": {
        "nom_mm": 2,
        "range_mm": [
          1.8,
          2.2
        ]
      },
      "e": {
        "nom_mm": 0.65,
        "range_mm": [
          null,
          null
        ]
      },
      "A": {
        "nom_mm": 0.95,
        "range_mm": [
          0.9,
          1
        ]
      },
      "source": "datasheet package drawing, every number found on its page (extract_pins --task dims)",
      "model_check": {
        "file": "ddtc144gua-7-f.step",
        "verdict": "PASS",
        "reasons": [
          "height and body within the datasheet's package drawing"
        ],
        "by": "factory/package_fit.py"
      }
    }
  },
  "metadata": {
    "specs": {
      "Manufacturer": "Diodes Incorporated",
      "Package": "SOT-323",
      "Category": "Transistors/Thyristors",
      "Pins": "3"
    },
    "appearance": {
      "contacts": {
        "quote": "• Terminals: Solderable per MIL-STD-202, Method 208 • Lead Free Plating (Matte Tin Finish annealed over",
        "page": 1,
        "doc": "ds.pdf",
        "plating": "tin"
      },
      "version": 1,
      "datasheet_sha256": "a613f194df3f51a944ec4e466855663c73524d2c19b808a2d14918f4da8e99fd"
    },
    "characteristics": {
      "version": 1,
      "source": "datasheet",
      "datasheet_sha256": "a613f194df3f51a944ec4e466855663c73524d2c19b808a2d14918f4da8e99fd",
      "rows": [
        {
          "name": "Collector-Base Breakdown Voltage",
          "symbol": "BVCBO",
          "kind": "electrical",
          "unit": "V",
          "min": 50,
          "typ": null,
          "max": null,
          "conditions": "IC = 50μA",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Collector-Emitter Breakdown Voltage",
          "symbol": "BVCEO",
          "kind": "electrical",
          "unit": "V",
          "min": 50,
          "typ": null,
          "max": null,
          "conditions": "IC = 1mA",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Emitter-Base Breakdown Voltage",
          "symbol": "BVEBO",
          "kind": "electrical",
          "unit": "V",
          "min": 5,
          "typ": null,
          "max": null,
          "conditions": "IE = 160μA, DDTC144GUA",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Collector Cutoff Current",
          "symbol": "ICBO",
          "kind": "electrical",
          "unit": "μA",
          "min": null,
          "typ": null,
          "max": 0.5,
          "conditions": "VCB = 50V",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Emitter Cutoff Current",
          "symbol": "IEBO",
          "kind": "electrical",
          "unit": "μA",
          "min": 65,
          "typ": null,
          "max": 130,
          "conditions": "VEB = 4V, DDTC144GUA",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Collector-Emitter Saturation Voltage",
          "symbol": "VCE(sat)",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 0.3,
          "conditions": "IC = 10mA, IB = 0.5mA",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "DC Current Transfer Ratio",
          "symbol": "hFE",
          "kind": "electrical",
          "unit": "",
          "min": 68,
          "typ": null,
          "max": null,
          "conditions": "IC = 5mA, VCE = 5V",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Bleeder Resistor (R2) Tolerance",
          "symbol": "ΔR2",
          "kind": "tolerance",
          "unit": "%",
          "min": -30,
          "typ": null,
          "max": 30,
          "conditions": "",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Bleeder Resistor R2 (nominal)",
          "symbol": "R2",
          "kind": "electrical",
          "unit": "kΩ",
          "min": null,
          "typ": 47,
          "max": null,
          "conditions": "R2 (NOM), DDTC144GUA",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Collector-Base Voltage",
          "symbol": "VCBO",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 50,
          "conditions": "TA = 25°C",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Collector-Emitter Voltage",
          "symbol": "VCEO",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 50,
          "conditions": "TA = 25°C",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Emitter-Base Voltage",
          "symbol": "VEBO",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 5,
          "conditions": "TA = 25°C",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Collector Current",
          "symbol": "IC (Max)",
          "kind": "absolute_maximum",
          "unit": "mA",
          "min": null,
          "typ": null,
          "max": 100,
          "conditions": "TA = 25°C",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Power Dissipation",
          "symbol": "Pd",
          "kind": "absolute_maximum",
          "unit": "mW",
          "min": null,
          "typ": null,
          "max": 200,
          "conditions": "TA = 25°C",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Operating and Storage Temperature Range",
          "symbol": "Tj, TSTG",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": -55,
          "typ": null,
          "max": 150,
          "conditions": "",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Thermal Resistance, Junction to Ambient Air",
          "symbol": "RθJA",
          "kind": "thermal",
          "unit": "°C/W",
          "min": null,
          "typ": 625,
          "max": null,
          "conditions": "Mounted on FR4 PC board with recommended pad layout (Note 1)",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Gain-Bandwidth Product",
          "symbol": "fT",
          "kind": "electrical",
          "unit": "MHz",
          "min": null,
          "typ": 250,
          "max": null,
          "conditions": "VCE = 10V, IE = -5mA, f = 100MHz",
          "source_page": 2,
          "source": "datasheet"
        }
      ]
    }
  },
  "variants": [],
  "sections": [
    "hero",
    "viewers",
    "readme",
    "breadcrumbs",
    "info"
  ],
  "discovery_triggers": [
    "ddtc144gua-7-f"
  ],
  "discovery_pitch": "DDTC144GUA-7-F (Diodes Incorporated) component page: datasheet pinout, KiCad symbol, footprint and 3D.",
  "author": {
    "name": "Ray"
  },
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "ddtc144gua-7-f.kicad_sym",
    "ddtc144gua-7-f.kicad_mod",
    "ddtc144gua-7-f.glb",
    "ddtc144gua-7-f.step",
    "ddtc144gua-7-f.lbr",
    "docs/hero.png",
    "docs/ddtc144gua-7-f-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "ddtc144gua-7-f-hero.glb",
    "ddtc144gua-7-f-hero.overlay.json"
  ],
  "visibility": {
    "public": true
  }
}