TL431AQDBVRQ1

{
  "slug": "tl431aqdbvrq1",
  "version": "0.1.0",
  "type": "component",
  "description": "Texas Instruments Voltage Reference, SOT-23-5. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "power management (pmic)",
    "tl431aqdbvrq1",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
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    "README.md",
    "tl431aqdbvrq1.kicad_sym",
    "tl431aqdbvrq1.kicad_mod",
    "tl431aqdbvrq1.glb",
    "tl431aqdbvrq1.step",
    "tl431aqdbvrq1.lbr",
    "docs/hero.png",
    "docs/tl431aqdbvrq1-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "tl431aqdbvrq1-hero.glb",
    "tl431aqdbvrq1-hero.overlay.json",
    "tl431aqdbvrq1-etched.glb"
  ],
  "component": {
    "mpn": "TL431AQDBVRQ1",
    "manufacturer": "Texas Instruments",
    "package": "SOT-23-5",
    "pin_count": 5,
    "category": "Power Management (PMIC)",
    "subcategory": "Voltage Reference",
    "datasheet": "https://www.ti.com/lit/ds/symlink/tl431-q1.pdf",
    "parts": {
      "symbol": "tl431aqdbvrq1.kicad_sym",
      "footprint": "tl431aqdbvrq1.kicad_mod",
      "model_3d": "tl431aqdbvrq1-hero.glb",
      "model_3d_plain": "tl431aqdbvrq1-etched.glb",
      "model_3d_step": "tl431aqdbvrq1-etched.step",
      "model_3d_step_plain": "tl431aqdbvrq1.step",
      "lbr": "tl431aqdbvrq1.lbr"
    },
    "distributor_links": {
      "lcsc": "C91733",
      "digikey": "296-23433-2-ND",
      "mouser": "595-TL431AQDBVRQ1"
    },
    "distributor_check": {
      "checked_at": "2026-11-06T02:17:41Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "296-23433-2-ND",
        "status": "found"
      },
      "mouser": {
        "pn": "595-TL431AQDBVRQ1",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "NC",
        "type": "unconnected",
        "description": "No connection."
      },
      {
        "number": "2",
        "name": "NC",
        "type": "unconnected",
        "description": "Pin 2 is connected internally to ANODE (die substrate) and must be left floating or connected to ANODE."
      },
      {
        "number": "3",
        "name": "CATHODE",
        "type": "passive",
        "description": "Shunt current or voltage input; the recommended cathode current for TL431xA-Q1 is 0.7 mA to 100 mA and the cathode voltage is VREF to 36 V."
      },
      {
        "number": "4",
        "name": "REF",
        "type": "input",
        "description": "Threshold relative to common anode; reference input current is limited to -50 µA (low) and 10 mA (high) in absolute maximum ratings."
      },
      {
        "number": "5",
        "name": "ANODE",
        "type": "power_in",
        "description": "Common pin, normally connected to ground."
      }
    ],
    "provenance": {
      "extractor": "extract_pins 0.3",
      "factory_chain": {
        "factory": "2.0.0",
        "extractor": "extract_pins 0.3",
        "primary_model": "claude-haiku-5-5",
        "primary_mode": "text",
        "consensus_model": "claude-sonnet-5-5",
        "consensus": "agreed",
        "guards": "pin_guards 0.1: passed",
        "guard_notes": [
          "extractor flagged: The datasheet lists the ANODE pin as I/O type 'O' (output). It is mapped to power_in here because th"
        ],
        "pages_sent": 9,
        "cost_usd": 0.0124,
        "at": "2026-11-06T02:17:17"
      },
      "datasheet": {
        "url": "https://www.ti.com/lit/ds/symlink/tl431-q1.pdf",
        "pages": 30,
        "sha256": "e1937a2597007ea8",
        "source_tier": "mfr"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 5,
        "described": 5,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
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      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
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        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
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        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "720a6eab0024069bbee68e7cb4c3ff1149468a34611225cdc852662c5d0ec2b7",
        "checked": "2026-11-06",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
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        "role": "eda",
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        "checked": "2026-11-06",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
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  }
}