LM385M3-1.2

{
  "schema_version": 1,
  "type": "component",
  "slug": "lm385m3-1-2",
  "title": "LM385M3-1.2",
  "brief": "HGSEMI LM385M3 1 2 TR Voltage Reference, SOT-23-3. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.2.0",
  "license": "CC-BY-SA-4.0",
  "tags": [
    "component",
    "pmic",
    "lm385m3-1.2"
  ],
  "component": {
    "mpn": "LM385M3-1.2",
    "manufacturer": "HGSEMI LM385M3 1 2 TR",
    "package": "SOT-23-3",
    "pin_count": 3,
    "category": "PMIC",
    "subcategory": "Voltage Reference",
    "datasheet": "https://datasheet.lcsc.com/datasheet/pdf/c0fe41dc0813ec9d857b95a2387b9ceb.pdf",
    "parts": {
      "symbol": "lm385m3-1-2.kicad_sym",
      "footprint": "lm385m3-1-2.kicad_mod",
      "model_3d": "lm385m3-1-2-etched.glb",
      "model_3d_plain": "lm385m3-1-2.glb",
      "model_3d_step": "lm385m3-1-2-etched.step",
      "model_3d_step_plain": "lm385m3-1-2.step",
      "lbr": "lm385m3-1-2.lbr"
    },
    "distributor_links": {},
    "pins": [
      {
        "number": "1",
        "name": "CATHODE",
        "type": "passive",
        "description": "Cathode (阴极) of the shunt voltage reference. In normal operation this pin sits at V_REF (nominal 1.235 V) above the anode when biased with 100 µA to 20 mA of reverse current."
      },
      {
        "number": "2",
        "name": "ANODE",
        "type": "passive",
        "description": "Anode (阳极) of the shunt voltage reference. Typically tied to circuit ground / return; the reference voltage develops from cathode to anode."
      },
      {
        "number": "3",
        "name": "NC",
        "type": "unconnected",
        "description": "No internal connection (内部无连接). Leave floating or tie to a convenient net; not electrically part of the reference."
      }
    ],
    "provenance": {
      "extractor": "ds2sf",
      "datasheet": {
        "url": "https://datasheet.lcsc.com/datasheet/pdf/c0fe41dc0813ec9d857b95a2387b9ceb.pdf",
        "pages": 12,
        "sha256": "bb8ab21a5cf45a69",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 3,
        "described": 3,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
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      "footprint": "viewers/footprint.html"
    },
    "pin1": {
      "pad": "1",
      "at": [
        -1.1375,
        -0.95
      ],
      "corner": "top-left",
      "source": "silk-marker",
      "derived_from": "SOT-23-3@sha256:ab2ce7041629a2c0",
      "mark": "drawn"
    },
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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": "16964b14f93e6c778288a0c110b35f670fab733109c26f0da7dfc07cc3350040",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "lm385m3-1-2-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": "7bcdf283a8a2a7642f05b6973011815df3e9acd97eedf3618900fb3f33359b42",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "HGSEMI",
      "Package": "SOT-23-3",
      "Category": "PMIC",
      "Pins": "3"
    }
  },
  "sections": [
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    "viewers",
    "readme",
    "breadcrumbs",
    "info"
  ],
  "discovery_triggers": [
    "lm385m3-1.2"
  ],
  "discovery_pitch": "LM385M3-1.2 (HGSEMI LM385M3 1 2 TR) component page with datasheet-verified CAD.",
  "author": {
    "name": "Ray"
  },
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "lm385m3-1-2.kicad_sym",
    "lm385m3-1-2.kicad_mod",
    "lm385m3-1-2.glb",
    "lm385m3-1-2.step",
    "lm385m3-1-2-etched.step",
    "lm385m3-1-2.lbr",
    "docs/hero.png",
    "docs/lm385m3-1-2-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html"
  ],
  "visibility": {
    "public": true
  },
  "variants": [
    {
      "mpn": "LM385M3-1.2/TR",
      "kind": "packaging"
    },
    {
      "mpn": "LM385BM3-1.2/TR",
      "kind": "unknown"
    },
    {
      "mpn": "LM385Z-1.2",
      "kind": "unknown"
    },
    {
      "mpn": "LM385BZ-1.2",
      "kind": "unknown"
    },
    {
      "mpn": "LM385M-1.2/TR",
      "kind": "unknown"
    },
    {
      "mpn": "LM385BM-1.2/TR",
      "kind": "unknown"
    },
    {
      "mpn": "LM385MM-1.2/TR",
      "kind": "unknown"
    },
    {
      "mpn": "LM385BMM-1.2/TR",
      "kind": "unknown"
    },
    {
      "mpn": "LM385DQ3-1.2/TR",
      "kind": "unknown"
    },
    {
      "mpn": "LM385BDQ3-1.2/TR",
      "kind": "unknown"
    },
    {
      "mpn": "LM385DQ2-1.2/TR",
      "kind": "unknown"
    },
    {
      "mpn": "LM385BDQ2-1.2/TR",
      "kind": "unknown"
    }
  ],
  "updated_at": "2026-09-28T16:46:06.339Z"
}