main
Ray Set visibility: public 2734ec9 8d ago
{
  "schema_version": 1,
  "type": "component",
  "slug": "ddta144ee-7-f",
  "title": "DDTA144EE-7-F",
  "brief": "Diodes Incorporated Digital Transistors, SOT-523. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.1.0",
  "license": "CC-BY-SA-4.0",
  "tags": [
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    "transistors-thyristors",
    "ddta144ee-7-f",
    "factory-2.0.0",
    "extractor-text"
  ],
  "component": {
    "mpn": "DDTA144EE-7-F",
    "manufacturer": "Diodes Incorporated",
    "package": "SOT-523",
    "pin_count": 3,
    "category": "Transistors/Thyristors",
    "subcategory": "Digital Transistors",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588912342750384128",
    "parts": {
      "symbol": "ddta144ee-7-f.kicad_sym",
      "footprint": "ddta144ee-7-f.kicad_mod",
      "model_3d": "ddta144ee-7-f-hero.glb",
      "model_3d_plain": "ddta144ee-7-f-etched.glb",
      "model_3d_step": "ddta144ee-7-f-etched.step",
      "model_3d_step_plain": "ddta144ee-7-f.step",
      "lbr": "ddta144ee-7-f.lbr"
    },
    "distributor_links": {
      "lcsc": "C526528",
      "digikey": "31-DDTA144EE-7-FTR-ND",
      "mouser": "621-DDTA144EE-F"
    },
    "distributor_check": {
      "checked_at": "2026-10-19T06:58:49Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "31-DDTA144EE-7-FTR-ND",
        "status": "found",
        "lifecycle": "Active"
      },
      "mouser": {
        "pn": "621-DDTA144EE-F",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "IN",
        "type": "input",
        "description": "Input terminal of the pre-biased transistor (base side of the built-in R1 = 47 kΩ / R2 = 47 kΩ network); input voltage is limited to +10 V to -40 V relative to pin 2 for DDTA144EE."
      },
      {
        "number": "2",
        "name": "GND",
        "type": "power_in",
        "description": "Common ground reference for the input voltage (pin 1 to pin 2) and supply voltage (pin 3 to pin 2) ratings."
      },
      {
        "number": "3",
        "name": "OUT",
        "type": "output",
        "description": "Output terminal (collector of the PNP transistor); supply voltage VCC is limited to 50 V from pin 3 to pin 2, and output current IO is limited to -30 mA for DDTA144EE."
      }
    ],
    "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 datasheet has no explicit pin table. Pin numbers and names were taken from the garbled schematic; The schematic labels pin 2 as GND (+) and also as GND (0) in the equivalent circuit, which is incons; Pin 3 is inferred as OUT and pin 1 as IN from the schematic text; the SOT523 pin 3 is also the colle"
        ],
        "pages_sent": 5,
        "cost_usd": 0.0413,
        "at": "2026-10-19T06:55:38"
      },
      "datasheet": {
        "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588912342750384128",
        "pages": 5,
        "sha256": "67f73dcb3690a4c5",
        "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": "ddta144ee-7-f.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          1.5,
          1.6,
          0.8
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "6e819566abafb9f039c087eaa9adc67bf15a71b810a4b09f42ee1f31d3ef0a82",
        "checked": "2026-10-19",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "ddta144ee-7-f-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
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          0.8
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "26041e74528fe38422cd690e9ed7a71fffeb7d9d6b4065e022dd8fb6cb5d20ca",
        "checked": "2026-10-19",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "Diodes Incorporated",
      "Package": "SOT-523",
      "Category": "Transistors/Thyristors",
      "Pins": "3"
    },
    "appearance": {
      "contacts": {
        "quote": " Terminals: Finish – Matte Tin Plated Leads, Solderable per MIL-STD-202, Method 208",
        "page": 1,
        "doc": "ds.pdf",
        "plating": "tin"
      },
      "version": 1,
      "datasheet_sha256": "67f73dcb3690a4c568b501baf5497f17ed32c867848e9630beedce3bd2ce4b37"
    },
    "characteristics": {
      "version": 1,
      "source": "datasheet",
      "datasheet_sha256": "67f73dcb3690a4c568b501baf5497f17ed32c867848e9630beedce3bd2ce4b37",
      "rows": [
        {
          "name": "Input resistor R1 (NOM), DDTA144EE",
          "symbol": "R1",
          "kind": "electrical",
          "unit": "kΩ",
          "min": null,
          "typ": 47,
          "max": null,
          "conditions": "R1 (NOM) for DDTA144EE; R2 = R1",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Input resistor tolerance",
          "symbol": "R1",
          "kind": "tolerance",
          "unit": "%",
          "min": -30,
          "typ": null,
          "max": 30,
          "conditions": "",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Resistance ratio tolerance",
          "symbol": "R2/R1",
          "kind": "tolerance",
          "unit": "%",
          "min": 0.8,
          "typ": 1,
          "max": 1.2,
          "conditions": "",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Input voltage (OFF)",
          "symbol": "Vl(OFF)",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": -0.5,
          "max": -1.1,
          "conditions": "VCC = -5V, IO = -100µA",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Input voltage (ON)",
          "symbol": "Vl(ON)",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": -1.9,
          "max": -3,
          "conditions": "VO = -0.3V, IO = -2mA, DDTA144EE",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Output voltage (ON)",
          "symbol": "VO(ON)",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": -0.1,
          "max": -0.3,
          "conditions": "IO/Il = -10mA/-0.5mA DDTA144EE",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Input current",
          "symbol": "Il",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": null,
          "max": -0.18,
          "conditions": "VI = -5V, DDTA144EE",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Output current (OFF)",
          "symbol": "IO(OFF)",
          "kind": "electrical",
          "unit": "µA",
          "min": null,
          "typ": null,
          "max": -0.5,
          "conditions": "VCC = -50V, VI = 0V",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "DC current gain",
          "symbol": "GI",
          "kind": "electrical",
          "unit": "",
          "min": -68,
          "typ": null,
          "max": null,
          "conditions": "VO = -5V, IO = -5mA, DDTA144EE",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Gain-bandwidth product (transistor only)",
          "symbol": "fT",
          "kind": "electrical",
          "unit": "MHz",
          "min": null,
          "typ": 250,
          "max": null,
          "conditions": "VCE = -10V, IE = 5mA, f = 100MHz",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Supply voltage",
          "symbol": "VCC",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 50,
          "conditions": "Pin (3) to (2)",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Input voltage",
          "symbol": "VIN",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -40,
          "typ": null,
          "max": 10,
          "conditions": "Pin (1) to (2), DDTA144EE",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Output current",
          "symbol": "IO",
          "kind": "absolute_maximum",
          "unit": "mA",
          "min": -30,
          "typ": null,
          "max": null,
          "conditions": "DDTA144EE",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Output current IC (max)",
          "symbol": "IC",
          "kind": "absolute_maximum",
          "unit": "mA",
          "min": -100,
          "typ": null,
          "max": null,
          "conditions": "Output current IC (Max)",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Power dissipation",
          "symbol": "PD",
          "kind": "absolute_maximum",
          "unit": "mW",
          "min": null,
          "typ": null,
          "max": 150,
          "conditions": "Note 5 & 6; 150mW per element must not be exceeded",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Thermal resistance, junction to ambient",
          "symbol": "RθJA",
          "kind": "thermal",
          "unit": "°C/W",
          "min": null,
          "typ": null,
          "max": 833,
          "conditions": "Note 5, FR-4 PCB with minimum recommended pad layout",
          "source_page": 2,
          "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": 2,
          "source": "datasheet"
        }
      ]
    }
  },
  "variants": [],
  "sections": [
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    "readme",
    "breadcrumbs",
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  "discovery_triggers": [
    "ddta144ee-7-f"
  ],
  "discovery_pitch": "DDTA144EE-7-F (Diodes Incorporated) component page: datasheet pinout, KiCad symbol, footprint and 3D.",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
  },
  "dependencies": {},
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    "path": "docs/hero.png"
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  "files": [
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    "ddta144ee-7-f.lbr",
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    "viewers/footprint.html",
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    "ddta144ee-7-f-hero.overlay.json",
    "ddta144ee-7-f-etched.glb"
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  "visibility": {
    "public": true
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}