ULN2003AM

{
  "schema_version": 1,
  "type": "component",
  "slug": "uln2003am",
  "title": "ULN2003AM",
  "brief": "HGSEMI Darlington Transistor Arrays, SOP-16. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.1.0",
  "license": "CC-BY-SA-4.0",
  "tags": [
    "component",
    "transistors-thyristors",
    "uln2003am"
  ],
  "component": {
    "mpn": "ULN2003AM",
    "manufacturer": "HGSEMI",
    "package": "SOP-16",
    "pin_count": 16,
    "category": "Transistors/Thyristors",
    "subcategory": "Darlington Transistor Arrays",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8758075146018275328",
    "parts": {
      "symbol": "uln2003am.kicad_sym",
      "footprint": "uln2003am.kicad_mod",
      "model_3d": "uln2003am-etched.glb",
      "model_3d_plain": "uln2003am.glb",
      "model_3d_step": "uln2003am-etched.step",
      "model_3d_step_plain": "uln2003am.step",
      "lbr": "uln2003am.lbr"
    },
    "distributor_links": {},
    "pins": [
      {
        "number": "1",
        "name": "1B",
        "type": "input",
        "description": "Base input to Darlington pair 1. TTL/CMOS compatible logic input; drives corresponding open-collector output 1C through internal ~2.7 kΩ base resistor."
      },
      {
        "number": "2",
        "name": "2B",
        "type": "input",
        "description": "Base input to Darlington pair 2. TTL/CMOS compatible logic input; drives output 2C."
      },
      {
        "number": "3",
        "name": "3B",
        "type": "input",
        "description": "Base input to Darlington pair 3. TTL/CMOS compatible logic input; drives output 3C."
      },
      {
        "number": "4",
        "name": "4B",
        "type": "input",
        "description": "Base input to Darlington pair 4. TTL/CMOS compatible logic input; drives output 4C."
      },
      {
        "number": "5",
        "name": "5B",
        "type": "input",
        "description": "Base input to Darlington pair 5. TTL/CMOS compatible logic input; drives output 5C."
      },
      {
        "number": "6",
        "name": "6B",
        "type": "input",
        "description": "Base input to Darlington pair 6. TTL/CMOS compatible logic input; drives output 6C."
      },
      {
        "number": "7",
        "name": "7B",
        "type": "input",
        "description": "Base input to Darlington pair 7. TTL/CMOS compatible logic input; drives output 7C."
      },
      {
        "number": "8",
        "name": "GND",
        "type": "power_in",
        "description": "Common ground/emitter return for all seven Darlington pairs. Connect to system ground."
      },
      {
        "number": "9",
        "name": "COM",
        "type": "power_in",
        "description": "Common cathode for the internal freewheeling suppression diodes. Connect to the positive supply of the inductive load (up to 50 V) to clamp back-EMF when switching relays, solenoids, or motors."
      },
      {
        "number": "10",
        "name": "7C",
        "type": "output",
        "description": "Open-collector Darlington output 7. Sinks up to 500 mA to GND when input 7B is high; VCE(sat) ≈ 1.1 V @ 200 mA. Withstands up to 50 V off-state."
      },
      {
        "number": "11",
        "name": "6C",
        "type": "output",
        "description": "Open-collector Darlington output 6. Sinks up to 500 mA to GND when input 6B is high; withstands up to 50 V off-state."
      },
      {
        "number": "12",
        "name": "5C",
        "type": "output",
        "description": "Open-collector Darlington output 5. Sinks up to 500 mA to GND when input 5B is high; withstands up to 50 V off-state."
      },
      {
        "number": "13",
        "name": "4C",
        "type": "output",
        "description": "Open-collector Darlington output 4. Sinks up to 500 mA to GND when input 4B is high; withstands up to 50 V off-state."
      },
      {
        "number": "14",
        "name": "3C",
        "type": "output",
        "description": "Open-collector Darlington output 3. Sinks up to 500 mA to GND when input 3B is high; withstands up to 50 V off-state."
      },
      {
        "number": "15",
        "name": "2C",
        "type": "output",
        "description": "Open-collector Darlington output 2. Sinks up to 500 mA to GND when input 2B is high; withstands up to 50 V off-state."
      },
      {
        "number": "16",
        "name": "1C",
        "type": "output",
        "description": "Open-collector Darlington output 1. Sinks up to 500 mA to GND when input 1B is high; withstands up to 50 V off-state."
      }
    ],
    "provenance": {
      "extractor": "ds2sf",
      "datasheet": {
        "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8758075146018275328",
        "pages": 10,
        "sha256": "995b5bd619cd84d5",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 16,
        "described": 16,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
      {
        "file": "uln2003am.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          6.0,
          9.9,
          1.75
        ],
        "zmin_mm": -0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "d5eeddb4c0b304dc61950919b126fc61d7586abd5f16ab71a2a79759ec6498bf",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "uln2003am-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
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        "zmin_mm": -0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "36bd3ea13c998b3e83cd98792d9c1e354002ea4dc4727dcf58842f7289f2e3bd",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "HGSEMI",
      "Package": "SOP-16",
      "Category": "Transistors/Thyristors",
      "Pins": "16"
    }
  },
  "variants": [
    {
      "mpn": "ULN2003AMS16",
      "kind": "packaging"
    },
    {
      "mpn": "ULN2003AMN",
      "kind": "packaging"
    },
    {
      "mpn": "ULN2003AMTS16",
      "kind": "packaging"
    }
  ],
  "sections": [
    "hero",
    "viewers",
    "readme",
    "breadcrumbs",
    "info"
  ],
  "discovery_triggers": [
    "uln2003am"
  ],
  "discovery_pitch": "ULN2003AM (HGSEMI) component page with datasheet-verified CAD.",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
  },
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "uln2003am.kicad_sym",
    "uln2003am.kicad_mod",
    "uln2003am.glb",
    "uln2003am.step",
    "uln2003am.lbr",
    "docs/hero.png",
    "docs/uln2003am-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html"
  ],
  "visibility": {
    "public": true
  },
  "updated_at": "2026-09-25T13:43:29.083Z"
}