ULN2003ADR

{
  "schema_version": 1,
  "type": "component",
  "slug": "uln2003adr",
  "title": "ULN2003ADR",
  "brief": "Texas Instruments Darlington Transistor Arrays, SOIC-16. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.1.0",
  "license": "CC-BY-SA-4.0",
  "tags": [
    "component",
    "transistors-thyristors",
    "uln2003adr"
  ],
  "component": {
    "mpn": "ULN2003ADR",
    "manufacturer": "Texas Instruments",
    "package": "SOIC-16",
    "pin_count": 16,
    "category": "Transistors/Thyristors",
    "subcategory": "Darlington Transistor Arrays",
    "datasheet": "https://www.ti.com/lit/ds/symlink/uln2003a.pdf",
    "parts": {
      "symbol": "uln2003adr.kicad_sym",
      "footprint": "uln2003adr.kicad_mod",
      "model_3d": "uln2003adr-etched.glb",
      "model_3d_plain": "uln2003adr.glb",
      "model_3d_step": "uln2003adr-etched.step",
      "model_3d_step_plain": "uln2003adr.step",
      "lbr": "uln2003adr.lbr"
    },
    "distributor_links": {},
    "pins": [
      {
        "number": "1",
        "name": "1B",
        "type": "input",
        "description": "Channel 1 Darlington base input. TTL/5 V CMOS compatible via internal 2.7 kΩ series base resistor. Absolute maximum input voltage 30 V."
      },
      {
        "number": "2",
        "name": "2B",
        "type": "input",
        "description": "Channel 2 Darlington base input. TTL/5 V CMOS compatible via internal 2.7 kΩ series base resistor."
      },
      {
        "number": "3",
        "name": "3B",
        "type": "input",
        "description": "Channel 3 Darlington base input. TTL/5 V CMOS compatible via internal 2.7 kΩ series base resistor."
      },
      {
        "number": "4",
        "name": "4B",
        "type": "input",
        "description": "Channel 4 Darlington base input. TTL/5 V CMOS compatible via internal 2.7 kΩ series base resistor."
      },
      {
        "number": "5",
        "name": "5B",
        "type": "input",
        "description": "Channel 5 Darlington base input. TTL/5 V CMOS compatible via internal 2.7 kΩ series base resistor."
      },
      {
        "number": "6",
        "name": "6B",
        "type": "input",
        "description": "Channel 6 Darlington base input. TTL/5 V CMOS compatible via internal 2.7 kΩ series base resistor."
      },
      {
        "number": "7",
        "name": "7B",
        "type": "input",
        "description": "Channel 7 Darlington base input. TTL/5 V CMOS compatible via internal 2.7 kΩ series base resistor."
      },
      {
        "number": "8",
        "name": "E",
        "type": "power_in",
        "description": "Common emitter shared by all seven Darlington channels. Typically tied to ground. Total emitter-terminal current rated -2.5 A max."
      },
      {
        "number": "9",
        "name": "COM",
        "type": "power_in",
        "description": "Common cathode node for the internal flyback clamp diodes. Connect to the load supply rail (up to 50 V) when driving inductive loads such as relays or stepper motors."
      },
      {
        "number": "10",
        "name": "7C",
        "type": "output",
        "description": "Channel 7 Darlington collector output. Open-collector, rated 500 mA continuous single-output collector current, 50 V max VCE."
      },
      {
        "number": "11",
        "name": "6C",
        "type": "output",
        "description": "Channel 6 Darlington collector output. Open-collector, 500 mA / 50 V max."
      },
      {
        "number": "12",
        "name": "5C",
        "type": "output",
        "description": "Channel 5 Darlington collector output. Open-collector, 500 mA / 50 V max."
      },
      {
        "number": "13",
        "name": "4C",
        "type": "output",
        "description": "Channel 4 Darlington collector output. Open-collector, 500 mA / 50 V max."
      },
      {
        "number": "14",
        "name": "3C",
        "type": "output",
        "description": "Channel 3 Darlington collector output. Open-collector, 500 mA / 50 V max."
      },
      {
        "number": "15",
        "name": "2C",
        "type": "output",
        "description": "Channel 2 Darlington collector output. Open-collector, 500 mA / 50 V max."
      },
      {
        "number": "16",
        "name": "1C",
        "type": "output",
        "description": "Channel 1 Darlington collector output. Open-collector, 500 mA / 50 V max."
      }
    ],
    "provenance": {
      "extractor": "ds2sf",
      "datasheet": {
        "url": "https://www.ti.com/lit/ds/symlink/uln2003a.pdf",
        "pages": 42,
        "sha256": "0151daa4ffa9135f",
        "source_tier": "mfr"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 16,
        "described": 16,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
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      "footprint": "viewers/footprint.html"
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  },
  "metadata": {
    "specs": {
      "Manufacturer": "Texas Instruments",
      "Package": "SOIC-16",
      "Category": "Transistors/Thyristors",
      "Pins": "16"
    }
  },
  "variants": [
    {
      "mpn": "ULN2003ADR",
      "kind": "packaging"
    },
    {
      "mpn": "ULN2003ADRAN",
      "kind": "packaging"
    },
    {
      "mpn": "ULN2003ADRANS",
      "kind": "packaging"
    },
    {
      "mpn": "ULN2003ADRAPW",
      "kind": "packaging"
    },
    {
      "mpn": "ULN2003ADRADYY",
      "kind": "packaging"
    }
  ],
  "sections": [
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    "viewers",
    "readme",
    "breadcrumbs",
    "info"
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  "discovery_triggers": [
    "uln2003adr"
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  "discovery_pitch": "ULN2003ADR (Texas Instruments) component page with datasheet-verified CAD.",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
  },
  "dependencies": {},
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    "path": "docs/hero.png"
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  "visibility": {
    "public": true
  },
  "updated_at": "2026-09-25T13:42:38.686Z"
}