main
Ray Set visibility: public bb61b6b 16d ago
{
  "schema_version": 1,
  "type": "component",
  "slug": "me431bxg",
  "title": "ME431BXG",
  "brief": "MICRONE Voltage References, SOT-23. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.1.0",
  "license": "CC-BY-SA-4.0",
  "tags": [
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    "power management ics",
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    "factory-2.0.0",
    "extractor-text"
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    "manufacturer": "MICRONE",
    "package": "SOT-23",
    "pin_count": 3,
    "category": "Power Management ICs",
    "subcategory": "Voltage References",
    "datasheet": "https://datasheet.lcsc.com/datasheet/pdf/2b427832f59746c8b908295ab0e75797.pdf",
    "parts": {
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      "lbr": "me431bxg.lbr"
    },
    "distributor_links": {
      "lcsc": "C83971"
    },
    "distributor_check": {
      "checked_at": "2026-10-22T23:00:54Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "deferred",
        "error": "shared DigiKey quota guard: 711 calls left today"
      },
      "mouser": {
        "pn": null,
        "status": "quota"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "REF",
        "type": "input",
        "description": "Reference input that sets the cathode voltage through an external divider, with VREF of 2.5V (2.490V to 2.510V for the 0.4% grade) and a maximum input current of 10mA."
      },
      {
        "number": "2",
        "name": "CATHODE",
        "type": "passive",
        "description": "Cathode (shunt current sink) terminal, rated at 40V maximum with a recommended 1mA to 100mA cathode current and an operating VKA from VREF to 36V."
      },
      {
        "number": "3",
        "name": "ANODE",
        "type": "power_in",
        "description": "Anode terminal, which connects to ground in the shunt regulator circuits."
      }
    ],
    "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": [
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          "vision extraction: provenance cannot be text-verified; needs consensus"
        ],
        "pages_sent": 12,
        "cost_usd": 0.2366,
        "at": "2026-10-22T23:00:39"
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        "pages": 12,
        "sha256": "8eb0b1763d99798b",
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      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 3,
        "described": 3,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
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    "viewers": {
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      "footprint": "viewers/footprint.html"
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        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
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        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "dd5d1711204e1d8d26cd11490923bd84340820baa69538c385a4300ec2539bc0",
        "checked": "2026-10-22",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
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        "file": "me431bxg-etched.step",
        "role": "eda",
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        "sha256": "332ff3ab661ae840d48bc5b68c08c0ac4bfce57e4ff16bf302c526917def0528",
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  "metadata": {
    "specs": {
      "Manufacturer": "MICRONE",
      "Package": "SOT-23",
      "Category": "Power Management ICs",
      "Pins": "3"
    },
    "appearance": {
      "housing": {
        "quote": "body, such as exercise equipment, medical equipment, security systems, gas equipment, or any apparatus installed in airplanes and other vehicles, without prior written permission of Nanjing Micro",
        "page": 12,
        "doc": "ds.pdf",
        "material": "ppa"
      },
      "version": 1,
      "datasheet_sha256": "8eb0b1763d99798bc3bdb406552c336a19d8dcba790866f708c645df89c62d3e"
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    "characteristics": {
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      "rows": [
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          "unit": "V",
          "min": null,
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          "max": 40,
          "conditions": "",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Cathode current (continuous)",
          "symbol": "IKA",
          "kind": "absolute_maximum",
          "unit": "mA",
          "min": -100,
          "typ": null,
          "max": 130,
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          "source": "datasheet"
        },
        {
          "name": "Reference input current",
          "symbol": "IREF",
          "kind": "absolute_maximum",
          "unit": "mA",
          "min": null,
          "typ": null,
          "max": 10,
          "conditions": "",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Junction temperature",
          "symbol": "TJ",
          "kind": "absolute_maximum",
          "unit": "℃",
          "min": null,
          "typ": null,
          "max": 160,
          "conditions": "",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Storage temperature range",
          "symbol": "TSTG",
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          "unit": "℃",
          "min": -65,
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        {
          "name": "Cathode voltage",
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          "kind": "recommended_operating",
          "unit": "V",
          "min": null,
          "typ": null,
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          "conditions": "min is VREF",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Cathode current",
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          "min": 1,
          "typ": null,
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        },
        {
          "name": "Operating ambient temperature range",
          "symbol": "TA",
          "kind": "recommended_operating",
          "unit": "℃",
          "min": -40,
          "typ": null,
          "max": 125,
          "conditions": "",
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          "source": "datasheet"
        },
        {
          "name": "Deviation of reference voltage over temperature",
          "symbol": "ΔVREF",
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          "unit": "mV",
          "min": null,
          "typ": 3,
          "max": 10,
          "conditions": "VKA=VREF, IKA=10mA, 0 to 70℃",
          "source_page": 3,
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        {
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          "symbol": "ΔVREF",
          "kind": "electrical",
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          "typ": 3,
          "max": 15,
          "conditions": "VKA=VREF, IKA=10mA, -40 to 150℃",
          "source_page": 3,
          "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": 3,
          "source": "datasheet"
        },
        {
          "name": "Minimum cathode current for regulation",
          "symbol": "IKA(MIN)",
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          "unit": "mA",
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          "typ": 0.4,
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          "min": null,
          "typ": -0.8,
          "max": -2.5,
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          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Ratio of change in reference voltage to change in cathode voltage",
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          "kind": "electrical",
          "unit": "mV/V",
          "min": null,
          "typ": -0.6,
          "max": -1.5,
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          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Reference current",
          "symbol": "IREF",
          "kind": "electrical",
          "unit": "μA",
          "min": null,
          "typ": 0.7,
          "max": 3,
          "conditions": "IKA=10mA, R1=10KΩ, R2=∝",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Deviation of reference current over full temperature range",
          "symbol": "ΔIREF",
          "kind": "electrical",
          "unit": "μA",
          "min": null,
          "typ": 0.1,
          "max": 1.2,
          "conditions": "IKA=10mA, R1=10KΩ, R2=∝, TA=40 to 150℃",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Off-state cathode current",
          "symbol": "IKA(OFF)",
          "kind": "electrical",
          "unit": "μA",
          "min": null,
          "typ": 0.03,
          "max": 0.3,
          "conditions": "VKA=36V, VREF=0",
          "source_page": 3,
          "source": "datasheet"
        }
      ]
    }
  },
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  "discovery_triggers": [
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  ],
  "discovery_pitch": "ME431BXG (MICRONE) component page: datasheet pinout, KiCad symbol, footprint and 3D.",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
  },
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}