AS431ANTR-E1

{
  "schema_version": 1,
  "type": "component",
  "slug": "as431antr-e1",
  "title": "AS431ANTR-E1",
  "brief": "Diodes Incorporated Voltage Reference, SOT-23. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.1.0",
  "license": "CC-BY-SA-4.0",
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  "component": {
    "mpn": "AS431ANTR-E1",
    "manufacturer": "Diodes Incorporated",
    "package": "SOT-23",
    "pin_count": 3,
    "category": "PMIC",
    "subcategory": "Voltage Reference",
    "datasheet": "https://www.diodes.com/assets/Datasheets/AS431ANTR-E1.pdf",
    "parts": {
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      "footprint": "as431antr-e1.kicad_mod",
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      "lbr": "as431antr-e1.lbr"
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    "distributor_links": {},
    "pins": [
      {
        "number": "1",
        "name": "REF",
        "type": "input",
        "description": "Reference input to the internal error amplifier. Compared against the internal 2.500 V bandgap; when REF exceeds VREF the cathode sinks current. Input current IREF typically 0.7 uA (4 uA max); absolute maximum reference current 10 mA."
      },
      {
        "number": "2",
        "name": "CATHODE",
        "type": "input",
        "description": "Cathode (K) of the shunt regulator. Sinks the regulated current from the load; operating cathode voltage 2.5 V to 36 V, cathode current 1 mA to 100 mA (absolute max -100 to 150 mA). Off-state cathode current 0.05 uA typ at VKA = 36 V."
      },
      {
        "number": "3",
        "name": "ANODE",
        "type": "power_in",
        "description": "Anode (A) of the shunt regulator, common return for cathode current and reference. Connect to the low-side rail (ground in a typical shunt-reference circuit)."
      }
    ],
    "provenance": {
      "extractor": "ds2sf",
      "datasheet": {
        "url": "https://www.diodes.com/assets/Datasheets/AS431ANTR-E1.pdf",
        "pages": 20,
        "sha256": "03f54aac77941ed9",
        "source_tier": "mfr"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 3,
        "described": 3,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
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      "footprint": "viewers/footprint.html"
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        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          2.5,
          3,
          1.2
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        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "dd5d1711204e1d8d26cd11490923bd84340820baa69538c385a4300ec2539bc0",
        "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": {
      "Manufacturer": "Diodes Incorporated",
      "Package": "SOT-23",
      "Category": "PMIC",
      "Pins": "3"
    }
  },
  "sections": [
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  "discovery_triggers": [
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  "discovery_pitch": "AS431ANTR-E1 (Diodes Incorporated) component page with datasheet-verified CAD.",
  "author": {
    "name": "Ray"
  },
  "dependencies": {},
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  "files": [
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  "visibility": {
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  "updated_at": "2026-09-24T16:57:54.227Z"
}