ULN2803G-D18-T

{
  "slug": "uln2803g-d18-t",
  "version": "0.1.0",
  "type": "component",
  "description": "UTC Unisonic Tech Darlington Transistor Arrays, DIP-18. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
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    "transistors-thyristors",
    "uln2803g-d18-t",
    "factory-2.0.0",
    "extractor-text"
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    "path": "docs/hero.png"
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    "uln2803g-d18-t.step",
    "uln2803g-d18-t.lbr",
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  "component": {
    "mpn": "ULN2803G-D18-T",
    "manufacturer": "UTC Unisonic Tech",
    "package": "DIP-18",
    "pin_count": 18,
    "category": "Transistors/Thyristors",
    "subcategory": "Darlington Transistor Arrays",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588896366970355712",
    "parts": {
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      "lbr": "uln2803g-d18-t.lbr"
    },
    "distributor_links": {
      "lcsc": "C75528"
    },
    "distributor_check": {
      "checked_at": "2026-10-16T06:12:33Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "no match"
      },
      "mouser": {
        "pn": null,
        "status": "no match"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "IN1",
        "type": "input",
        "description": "Darlington driver input 1; input voltage rated -0.5 to 30 V, drives output 18."
      },
      {
        "number": "2",
        "name": "IN2",
        "type": "input",
        "description": "Darlington driver input 2; input voltage rated -0.5 to 30 V, drives output 17."
      },
      {
        "number": "3",
        "name": "IN3",
        "type": "input",
        "description": "Darlington driver input 3; input voltage rated -0.5 to 30 V, drives output 16."
      },
      {
        "number": "4",
        "name": "IN4",
        "type": "input",
        "description": "Darlington driver input 4; input voltage rated -0.5 to 30 V, drives output 15."
      },
      {
        "number": "5",
        "name": "IN5",
        "type": "input",
        "description": "Darlington driver input 5; input voltage rated -0.5 to 30 V, drives output 14."
      },
      {
        "number": "6",
        "name": "IN6",
        "type": "input",
        "description": "Darlington driver input 6; input voltage rated -0.5 to 30 V, drives output 13."
      },
      {
        "number": "7",
        "name": "IN7",
        "type": "input",
        "description": "Darlington driver input 7; input voltage rated -0.5 to 30 V, drives output 12."
      },
      {
        "number": "8",
        "name": "IN8",
        "type": "input",
        "description": "Darlington driver input 8; input voltage rated -0.5 to 30 V, drives output 11."
      },
      {
        "number": "9",
        "name": "GND",
        "type": "power_in",
        "description": "Ground reference for the Darlington array."
      },
      {
        "number": "10",
        "name": "COMMON",
        "type": "passive",
        "description": "Common cathode of the free-wheeling clamp diodes; clamp diode reverse voltage 50 V max, forward current 500 mA max."
      },
      {
        "number": "11",
        "name": "OUT8",
        "type": "output",
        "description": "Open-collector Darlington output 8; 500 mA max per channel, 50 V sustaining voltage."
      },
      {
        "number": "12",
        "name": "OUT7",
        "type": "output",
        "description": "Open-collector Darlington output 7; 500 mA max per channel, 50 V sustaining voltage."
      },
      {
        "number": "13",
        "name": "OUT6",
        "type": "output",
        "description": "Open-collector Darlington output 6; 500 mA max per channel, 50 V sustaining voltage."
      },
      {
        "number": "14",
        "name": "OUT5",
        "type": "output",
        "description": "Open-collector Darlington output 5; 500 mA max per channel, 50 V sustaining voltage."
      },
      {
        "number": "15",
        "name": "OUT4",
        "type": "output",
        "description": "Open-collector Darlington output 4; 500 mA max per channel, 50 V sustaining voltage."
      },
      {
        "number": "16",
        "name": "OUT3",
        "type": "output",
        "description": "Open-collector Darlington output 3; 500 mA max per channel, 50 V sustaining voltage."
      },
      {
        "number": "17",
        "name": "OUT2",
        "type": "output",
        "description": "Open-collector Darlington output 2; 500 mA max per channel, 50 V sustaining voltage."
      },
      {
        "number": "18",
        "name": "OUT1",
        "type": "output",
        "description": "Open-collector Darlington output 1; 500 mA max per channel, 50 V sustaining voltage."
      }
    ],
    "provenance": {
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        "extractor": "extract_pins 0.3",
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        "consensus": "agreed",
        "guards": "pin_guards 0.1: passed",
        "guard_notes": [
          "extractor flagged: Datasheet labels pins only as IN/OUT; channel numbering (IN1..IN8, OUT1..OUT8) is inferred from the ; Pin 10 is labeled 'COMMON FREE WHEELING DIODES'; the passive type is my choice.",
          "vision extraction: provenance cannot be text-verified; needs consensus"
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        "cost_usd": 0.1124,
        "at": "2026-10-16T06:12:16"
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        "pages": 6,
        "sha256": "e652907963e40a2d",
        "source_tier": "lcsc"
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      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 18,
        "described": 18,
        "cites_pages": true,
        "refuses_to_fabricate": true
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}