main
Ray Set visibility: public ff38ef1 4d ago
{
  "schema_version": 1,
  "type": "component",
  "slug": "as431brtr-g1",
  "title": "AS431BRTR-G1",
  "brief": "Diodes Incorporated Voltage References, SOT-89-3. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.1.0",
  "license": "CC-BY-SA-4.0",
  "tags": [
    "component",
    "power supply chip",
    "as431brtr-g1",
    "factory-2.0.0",
    "extractor-text"
  ],
  "component": {
    "mpn": "AS431BRTR-G1",
    "manufacturer": "Diodes Incorporated",
    "package": "SOT-89-3",
    "pin_count": 3,
    "category": "Power Supply Chip",
    "subcategory": "Voltage References",
    "datasheet": "https://www.diodes.com/assets/Datasheets/AS431BRTR-G1.pdf",
    "parts": {
      "symbol": "as431brtr-g1.kicad_sym",
      "footprint": "as431brtr-g1.kicad_mod",
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      "model_3d_plain": "as431brtr-g1-etched.glb",
      "model_3d_step": "as431brtr-g1-etched.step",
      "model_3d_step_plain": "as431brtr-g1.step",
      "lbr": "as431brtr-g1.lbr"
    },
    "distributor_links": {
      "lcsc": "C2658842",
      "digikey": "31-AS431BRTR-G1TR-ND",
      "mouser": "621-AS431BRTR-G1"
    },
    "distributor_check": {
      "checked_at": "2026-10-30T23:51:59Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "31-AS431BRTR-G1TR-ND",
        "status": "found",
        "lifecycle": "Active"
      },
      "mouser": {
        "pn": "621-AS431BRTR-G1",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "REF",
        "type": "input",
        "description": "Reference input that sets the regulated cathode voltage; VREF is 2.5V typical and the absolute maximum reference input current is 10mA."
      },
      {
        "number": "2",
        "name": "ANODE",
        "type": "power_in",
        "description": "Anode terminal, normally tied to ground, which carries the shunt current sunk from the cathode (cathode current range -100 to 150mA absolute maximum)."
      },
      {
        "number": "3",
        "name": "CATHODE",
        "type": "passive",
        "description": "Cathode terminal of the shunt regulator, operating from VREF up to 36V (40V absolute maximum) with 1mA to 100mA recommended cathode current."
      }
    ],
    "provenance": {
      "extractor": "extract_pins 0.3",
      "factory_chain": {
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        "extractor": "extract_pins 0.3",
        "primary_model": "claude-sonnet-5-5",
        "primary_mode": "text+vision",
        "consensus_model": "claude-opus-5-5",
        "consensus": "agreed",
        "guards": "pin_guards 0.1: passed",
        "guard_notes": [
          "extractor flagged: The datasheet shows two SOT89 variants (Option 1 and Option 2). Both list the same pin order (1=REF,; The datasheet does not say whether the SOT89 tab is connected to a pin. It is not listed as a separa",
          "vision extraction: provenance cannot be text-verified; needs consensus"
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        "cost_usd": 0.2049,
        "at": "2026-10-30T23:51:52"
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        "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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        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
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          1.52
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        "zmin_mm": 0,
        "centre_offset_mm": 0.05,
        "footprint_binding": "identity",
        "sha256": "844c0bb504d0c383535d9845c6376fe7a4053241a2ede8d8ef694df3fcfc37c8",
        "checked": "2026-10-30",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
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        "role": "eda",
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        "checked": "2026-10-30",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
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    ],
    "package_dims": {
      "package_code": "SOT89",
      "source_page": 16,
      "D": {
        "nom_mm": 4.5,
        "range_mm": [
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          4.6
        ]
      },
      "E1": {
        "nom_mm": 2.45,
        "range_mm": [
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      "E": {
        "nom_mm": 4.1,
        "range_mm": [
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      },
      "e": {
        "nom_mm": 1.5,
        "range_mm": [
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          null
        ]
      },
      "A": {
        "nom_mm": 1.5,
        "range_mm": [
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          1.6
        ]
      },
      "source": "datasheet package drawing, every number found on its page (extract_pins --task dims)",
      "model_check": {
        "file": "as431brtr-g1.step",
        "verdict": "PASS",
        "reasons": [
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        ],
        "by": "factory/package_fit.py"
      }
    }
  },
  "metadata": {
    "specs": {
      "Manufacturer": "Diodes Incorporated",
      "Package": "SOT-89-3",
      "Category": "Power Supply Chip",
      "Pins": "3"
    },
    "appearance": {
      "housing": {
        "quote": "ESD ESD (Human Body Model) 2000 V Note 5: Stresses greater than those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and",
        "page": 4,
        "doc": "ds.pdf",
        "material": "Abs"
      },
      "version": 1,
      "datasheet_sha256": "03f54aac77941ed9e507055741c39974da6e9ccc152c0be84968879cebf95011"
    },
    "characteristics": {
      "version": 1,
      "source": "datasheet",
      "datasheet_sha256": "03f54aac77941ed9e507055741c39974da6e9ccc152c0be84968879cebf95011",
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          "kind": "tolerance",
          "unit": "V",
          "min": 2.475,
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          "conditions": "VKA = VREF, IKA = 10mA",
          "source_page": 5,
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        {
          "name": "Deviation of Reference Voltage Over Full Temperature Range (0 to +70°C)",
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          "source_page": 5,
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        {
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          "symbol": "∆VREF/∆VKA",
          "kind": "voltage_coefficient",
          "unit": "mV/V",
          "min": null,
          "typ": -1,
          "max": -2.7,
          "conditions": "∆VKA = 10V to VREF, IKA = 10mA",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Ratio of Change in Reference Voltage to Change in Cathode Voltage (36V to 10V)",
          "symbol": "∆VREF/∆VKA",
          "kind": "voltage_coefficient",
          "unit": "mV/V",
          "min": null,
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          "conditions": "∆VKA = 36V to 10V, IKA = 10mA",
          "source_page": 5,
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        },
        {
          "name": "Reference Current",
          "symbol": "IREF",
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          "unit": "µA",
          "min": null,
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          "max": 4,
          "conditions": "IKA = 10mA, R1 = 10kΩ, R2 = ∞",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Deviation of Reference Current Over Full Temperature Range",
          "symbol": "∆IREF",
          "kind": "electrical",
          "unit": "µA",
          "min": null,
          "typ": 0.4,
          "max": 1.2,
          "conditions": "IKA = 10mA, R1 = 10kΩ, R2 = ∞, TA = -40 to +125°C",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Minimum Cathode Current for Regulation",
          "symbol": "IKA (Min)",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": 0.4,
          "max": 1,
          "conditions": "VKA = VREF",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Off-state Cathode Current",
          "symbol": "IKA (Off)",
          "kind": "electrical",
          "unit": "µA",
          "min": null,
          "typ": 0.05,
          "max": 1,
          "conditions": "VKA = 36V, VREF = 0",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Dynamic Impedance",
          "symbol": "ZKA",
          "kind": "electrical",
          "unit": "Ω",
          "min": null,
          "typ": 0.15,
          "max": 0.5,
          "conditions": "VKA = VREF, IKA = 1 to 100mA, f ≤ 1.0kHz",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Cathode Voltage (recommended operating, maximum)",
          "symbol": "VKA",
          "kind": "recommended_operating",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 36,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Cathode Current (recommended operating)",
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          "min": 1,
          "typ": null,
          "max": 100,
          "conditions": "",
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        },
        {
          "name": "Operating Ambient Temperature Range",
          "symbol": "TA",
          "kind": "recommended_operating",
          "unit": "°C",
          "min": -40,
          "typ": null,
          "max": 125,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Cathode Voltage (absolute maximum)",
          "symbol": "VKA",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": null,
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          "conditions": "",
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          "source": "datasheet"
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        {
          "name": "Cathode Current Range (Continuous)",
          "symbol": "IKA",
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          "unit": "mA",
          "min": -100,
          "typ": null,
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          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Reference Input Current Range",
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          "max": 10,
          "conditions": "",
          "source_page": 4,
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        },
        {
          "name": "Power Dissipation (Z, R package; R = SOT89)",
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          "kind": "absolute_maximum",
          "unit": "mW",
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          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Junction Temperature",
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          "kind": "absolute_maximum",
          "unit": "°C",
          "min": null,
          "typ": null,
          "max": 150,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Storage Temperature Range",
          "symbol": "TSTG",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": -65,
          "typ": null,
          "max": 150,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "ESD (Human Body Model)",
          "symbol": "ESD",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 2000,
          "conditions": "Human Body Model",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Thermal Resistance (SOT89)",
          "symbol": "θJC",
          "kind": "thermal",
          "unit": "°C/W",
          "min": null,
          "typ": 29.8,
          "max": null,
          "conditions": "",
          "source_page": 5,
          "source": "datasheet"
        }
      ]
    }
  },
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  "discovery_triggers": [
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  "discovery_pitch": "AS431BRTR-G1 (Diodes Incorporated) component page: datasheet pinout, KiCad symbol, footprint and 3D.",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
  },
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