A1302

{
  "schema_version": 1,
  "type": "component",
  "slug": "a1302",
  "title": "A1302",
  "brief": "Allegro ratiometric linear Hall-effect sensor, SOT-23W. Analog output, 1.3 mV/G, 4.5-6 V. Datasheet-verified.",
  "version": "0.1.0",
  "license": "CC-BY-SA-4.0",
  "tags": [
    "component",
    "sensor",
    "hall-effect",
    "magnetic-sensor",
    "linear",
    "sot-23",
    "allegro"
  ],
  "component": {
    "mpn": "A1302",
    "manufacturer": "Allegro MicroSystems",
    "package": "SOT-23W",
    "pin_count": 3,
    "category": "Sensor",
    "subcategory": "Hall-effect sensor",
    "datasheet": "https://www.allegromicro.com/-/media/files/datasheets/a1301-2-datasheet.pdf",
    "parts": {
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      "footprint": "a1302.kicad_mod",
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      "model_3d_step_plain": "a1302.step",
      "lbr": "a1302.lbr"
    },
    "distributor_links": {},
    "pins": [
      {
        "number": "1",
        "name": "VCC",
        "type": "power_in",
        "description": "Supply pin. Connects power supply to chip. Operating range 4.5 to 6.0 V; absolute max 8 V. Typical supply current up to 11 mA. Bypass with CBYPASS capacitor to GND."
      },
      {
        "number": "2",
        "name": "VOUT",
        "type": "output",
        "description": "Analog output from Hall-effect sensor. Ratiometric rail-to-rail; quiescent output = VCC/2 (2.5 V typical at VCC = 5 V). Sensitivity 1.3 mV/G typical (A1302). Output resistance ~2 ohm, max sink current 10 mA."
      },
      {
        "number": "3",
        "name": "GND",
        "type": "power_in",
        "description": "Ground reference for supply and output."
      }
    ],
    "provenance": {
      "extractor": "ds2sf",
      "datasheet": {
        "url": "https://www.allegromicro.com/-/media/files/datasheets/a1301-2-datasheet.pdf",
        "pages": 10,
        "sha256": "65c35521e270ff28",
        "source_tier": "mfr"
      },
      "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"
    },
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        "units": "mm",
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        "seat": "z = 0",
        "extents_mm": [
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          1.0
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        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
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        "sha256": "f3afb29ed569897116b2e1261d29c4862213f144f5553cbf1f9bba9a8b0cb4ac",
        "checked": "2026-10-07",
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        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Type": "Ratiometric linear Hall-effect sensor",
      "Output": "Analog, ratiometric to VCC",
      "Sensitivity": "1.3 mV/G (typ)",
      "Quiescent output": "VCC/2 (no field)",
      "Supply": "4.5-6 V",
      "Bandwidth": "20 kHz",
      "Package": "SOT-23W (3-lead)"
    }
  },
  "sections": [
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    "viewers",
    "readme",
    "breadcrumbs",
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  ],
  "discovery_triggers": [
    "a1302",
    "linear hall effect sensor",
    "ratiometric hall sensor",
    "analog magnetic sensor"
  ],
  "discovery_pitch": "Allegro A1302 ratiometric linear Hall-effect sensor (SOT-23W) with datasheet-verified pinout, KiCad symbol/footprint/3D, and full provenance.",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
  },
  "dependencies": {},
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    "path": "docs/hero.png"
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    "a1302.lbr",
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    "docs/a1302-datasheet.pdf",
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}