LM2903M

{
  "schema_version": 1,
  "type": "component",
  "slug": "lm2903m",
  "title": "LM2903M",
  "brief": "HGSEMI Comparators, SOP-8. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.2.0",
  "license": "CC-BY-SA-4.0",
  "tags": [
    "component",
    "op-amp-cmp",
    "lm2903m"
  ],
  "component": {
    "mpn": "LM2903M",
    "manufacturer": "HGSEMI",
    "package": "SOP-8",
    "pin_count": 8,
    "category": "Op-amp/Cmp",
    "subcategory": "Comparators",
    "datasheet": "https://datasheet.lcsc.com/datasheet/pdf/98320091471974e399babd77cb42f274.pdf",
    "parts": {
      "symbol": "lm2903m.kicad_sym",
      "footprint": "lm2903m.kicad_mod",
      "model_3d": "lm2903m-etched.glb",
      "model_3d_plain": "lm2903m.glb",
      "model_3d_step": "lm2903m-etched.step",
      "model_3d_step_plain": "lm2903m.step",
      "lbr": "lm2903m.lbr"
    },
    "distributor_links": {},
    "pins": [
      {
        "number": "1",
        "name": "1OUT",
        "type": "output",
        "description": "Open-collector output of comparator 1. Requires an external pull-up resistor to a positive supply."
      },
      {
        "number": "2",
        "name": "1IN-",
        "type": "input",
        "description": "Inverting input of comparator 1."
      },
      {
        "number": "3",
        "name": "1IN+",
        "type": "input",
        "description": "Non-inverting input of comparator 1."
      },
      {
        "number": "4",
        "name": "GND",
        "type": "power_in",
        "description": "Ground / negative supply rail (V-). Connect to 0 V in single-supply operation."
      },
      {
        "number": "5",
        "name": "2IN+",
        "type": "input",
        "description": "Non-inverting input of comparator 2."
      },
      {
        "number": "6",
        "name": "2IN-",
        "type": "input",
        "description": "Inverting input of comparator 2."
      },
      {
        "number": "7",
        "name": "2OUT",
        "type": "output",
        "description": "Open-collector output of comparator 2. Requires an external pull-up resistor to a positive supply."
      },
      {
        "number": "8",
        "name": "VCC",
        "type": "power_in",
        "description": "Positive supply rail. Single-supply operation from 2 V to 36 V, or dual-supply +/-1 V to +/-18 V."
      }
    ],
    "provenance": {
      "extractor": "ds2sf",
      "datasheet": {
        "url": "https://datasheet.lcsc.com/datasheet/pdf/98320091471974e399babd77cb42f274.pdf",
        "pages": 10,
        "sha256": "f17b943bc6fafd8b",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 8,
        "described": 8,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
      {
        "file": "lm2903m.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          6.0,
          4.9,
          1.75
        ],
        "zmin_mm": -0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "07f46cff378d30e6c27dfd5a03092c795323f86d91c71fc7e743f4f418dc553a",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "lm2903m-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          6.0,
          4.9,
          1.75
        ],
        "zmin_mm": -0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "29ecd498d68cc1807465bf4f7536be42b69c2aebc302b330d01075994171f1c6",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "HGSEMI",
      "Package": "SOP-8",
      "Category": "Op-amp/Cmp",
      "Pins": "8"
    }
  },
  "sections": [
    "hero",
    "viewers",
    "readme",
    "breadcrumbs",
    "info"
  ],
  "discovery_triggers": [
    "lm2903m"
  ],
  "discovery_pitch": "LM2903M (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",
    "lm2903m.kicad_sym",
    "lm2903m.kicad_mod",
    "lm2903m.glb",
    "lm2903m.step",
    "lm2903m-etched.step",
    "lm2903m.lbr",
    "docs/hero.png",
    "docs/lm2903m-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html"
  ],
  "visibility": {
    "public": true
  },
  "variants": [
    {
      "mpn": "LM2903MM",
      "kind": "packaging"
    }
  ],
  "updated_at": "2026-09-28T16:25:30.149Z"
}