ZR431FTA

{
  "slug": "zr431fta",
  "version": "0.1.0",
  "type": "component",
  "description": "Diodes Incorporated Voltage Reference, SOT-23-3. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "power management (pmic)",
    "zr431fta",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "zr431fta.kicad_sym",
    "zr431fta.kicad_mod",
    "zr431fta.glb",
    "zr431fta.step",
    "zr431fta.lbr",
    "docs/hero.png",
    "docs/zr431fta-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "zr431fta-hero.glb",
    "zr431fta-hero.overlay.json",
    "zr431fta-etched.glb"
  ],
  "component": {
    "mpn": "ZR431FTA",
    "manufacturer": "Diodes Incorporated",
    "package": "SOT-23-3",
    "pin_count": 3,
    "category": "Power Management (PMIC)",
    "subcategory": "Voltage Reference",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8560092520949436416",
    "parts": {
      "symbol": "zr431fta.kicad_sym",
      "footprint": "zr431fta.kicad_mod",
      "model_3d": "zr431fta-hero.glb",
      "model_3d_plain": "zr431fta-etched.glb",
      "model_3d_step": "zr431fta-etched.step",
      "model_3d_step_plain": "zr431fta.step",
      "lbr": "zr431fta.lbr"
    },
    "distributor_links": {
      "lcsc": "C441835"
    },
    "distributor_check": {
      "checked_at": "2026-10-17T14:39:27Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "quota"
      },
      "mouser": {
        "pn": null,
        "status": "quota"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "VREF",
        "type": "power_in",
        "description": "Reference input of the adjustable shunt regulator, taken from the external R1/R2 divider; nominal reference voltage is 2.5V (2% tolerance for ZR431FTA)."
      },
      {
        "number": "2",
        "name": "VZ",
        "type": "passive",
        "description": "Cathode of the shunt regulator; cathode voltage ranges from VREF to 20V (absolute maximum 20V) and cathode current from 0.05mA to 100mA (absolute maximum 150mA)."
      },
      {
        "number": "3",
        "name": "GND",
        "type": "power_in",
        "description": "Ground (anode) of the shunt regulator; all voltages are specified relative to this pin."
      }
    ],
    "provenance": {
      "extractor": "extract_pins 0.3",
      "factory_chain": {
        "factory": "2.0.0",
        "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: Pin electrical types (VREF as input, VZ as passive) are inferred from the circuit function, since th",
          "vision extraction: provenance cannot be text-verified; needs consensus"
        ],
        "pages_sent": 11,
        "cost_usd": 0.1715,
        "at": "2026-10-17T14:37:27"
      },
      "datasheet": {
        "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8560092520949436416",
        "pages": 11,
        "sha256": "93e5c58d4c91bc6c",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 3,
        "described": 3,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
      {
        "file": "zr431fta.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
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          3.0,
          1.2
        ],
        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "16964b14f93e6c778288a0c110b35f670fab733109c26f0da7dfc07cc3350040",
        "checked": "2026-10-17",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "zr431fta-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
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          3.0,
          1.2
        ],
        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "ec509efc4d253f4b346fda2bd0e18c5e6e11d160c57dac4d5c6ecad64ce3a306",
        "checked": "2026-10-17",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}