A1120LLHLT-T

{
  "schema_version": 1,
  "type": "component",
  "slug": "a1120llhlt-t",
  "title": "A1120LLHLT-T",
  "brief": "Allegro MicroSystems LLC Hall Sensor, SOT-23W. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.2.2",
  "license": "CC-BY-SA-4.0",
  "tags": [
    "component",
    "sensor",
    "a1120llhlt-t"
  ],
  "component": {
    "mpn": "A1120LLHLT-T",
    "manufacturer": "Allegro MicroSystems LLC",
    "package": "SOT-23W",
    "pin_count": 3,
    "category": "Sensor",
    "subcategory": "Hall Sensor",
    "datasheet": "https://datasheet.lcsc.com/datasheet/pdf/d5e74a8ffe974e4471750e35165ac26a.pdf",
    "parts": {
      "symbol": "a1120llhlt-t.kicad_sym",
      "footprint": "a1120llhlt-t.kicad_mod",
      "model_3d": "a1120llhlt-t-hero.glb",
      "model_3d_plain": "a1120llhlt-t.glb",
      "model_3d_step": "a1120llhlt-t-etched.step",
      "model_3d_step_plain": "a1120llhlt-t.step",
      "lbr": "a1120llhlt-t.lbr"
    },
    "distributor_links": {
      "lcsc": "C459230"
    },
    "pins": [
      {
        "number": "1",
        "name": "VCC",
        "type": "power_in",
        "description": "Supply voltage input. Operating range 3.0 V to 24 V. A bypass capacitor (typ. 0.1 µF) from VCC to GND is recommended for noise immunity."
      },
      {
        "number": "2",
        "name": "GND",
        "type": "power_in",
        "description": "Ground return for the device."
      },
      {
        "number": "3",
        "name": "VOUT",
        "type": "output",
        "description": "Open-drain digital Hall switch output. Sinks up to 25 mA when the magnetic field exceeds the operate point (BOP); high-impedance (requires external pull-up) when the field falls below the release point (BRP)."
      }
    ],
    "provenance": {
      "extractor": "ds2sf",
      "datasheet": {
        "url": "https://datasheet.lcsc.com/datasheet/pdf/d5e74a8ffe974e4471750e35165ac26a.pdf",
        "pages": 18,
        "sha256": "2e2d51c564dee4c6",
        "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"
    },
    "pin1": {
      "pad": "1",
      "at": [
        -0.9375,
        -0.95
      ],
      "corner": "top-left",
      "source": "silk-marker",
      "derived_from": "SOT-23@sha256:0d88c86c1b6d8c1a",
      "mark": "drawn"
    },
    "models_3d": [
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        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          2.5,
          3,
          1.2
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "dd5d1711204e1d8d26cd11490923bd84340820baa69538c385a4300ec2539bc0",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "a1120llhlt-t-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
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          3,
          1.2
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "cc7c7567289d2cd3386cde25c916e20606f45be22c2ae5719b45b0a6a19710ac",
        "checked": "2026-11-12",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "Allegro MicroSystems LLC",
      "Package": "SOT-23W",
      "Category": "Sensor",
      "Pins": "3"
    }
  },
  "sections": [
    "hero",
    "viewers",
    "readme",
    "breadcrumbs",
    "info"
  ],
  "discovery_triggers": [
    "a1120llhlt-t"
  ],
  "discovery_pitch": "A1120LLHLT-T (Allegro MicroSystems LLC) component page with datasheet-verified CAD.",
  "author": {
    "name": "Ray"
  },
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "a1120llhlt-t.kicad_sym",
    "a1120llhlt-t.kicad_mod",
    "a1120llhlt-t.glb",
    "a1120llhlt-t.step",
    "a1120llhlt-t-etched.step",
    "a1120llhlt-t.lbr",
    "docs/hero.png",
    "docs/a1120llhlt-t-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "pads.json",
    "a1120llhlt-t-etched.glb",
    "a1120llhlt-t-hero.glb",
    "a1120llhlt-t-hero.overlay.json"
  ],
  "visibility": "public",
  "updated_at": "2026-09-24T15:25:56.140Z",
  "description": "Allegro MicroSystems LLC Hall Sensor, SOT-23W. Datasheet-verified pinout, KiCad symbol/footprint/3D.",
  "org": "adom"
}