BZX84-C43

{
  "slug": "bzx84-c43",
  "version": "0.1.0",
  "type": "component",
  "description": "Nexperia Zener Diodes, SOT-23(TO-236AB). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "diodes",
    "bzx84-c43",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "bzx84-c43.kicad_sym",
    "bzx84-c43.kicad_mod",
    "bzx84-c43.glb",
    "bzx84-c43.step",
    "bzx84-c43.lbr",
    "docs/hero.png",
    "docs/bzx84-c43-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "bzx84-c43-hero.glb",
    "bzx84-c43-hero.overlay.json"
  ],
  "component": {
    "mpn": "BZX84-C43",
    "manufacturer": "Nexperia",
    "package": "SOT-23(TO-236AB)",
    "pin_count": 3,
    "category": "Diodes",
    "subcategory": "Zener Diodes",
    "datasheet": "https://assets.nexperia.com/documents/data-sheet/BZX84-C43.pdf",
    "parts": {
      "symbol": "bzx84-c43.kicad_sym",
      "footprint": "bzx84-c43.kicad_mod",
      "model_3d": "bzx84-c43-hero.glb",
      "model_3d_plain": "bzx84-c43.glb",
      "model_3d_step": "bzx84-c43-etched.step",
      "model_3d_step_plain": "bzx84-c43.step",
      "lbr": "bzx84-c43.lbr"
    },
    "distributor_links": {
      "lcsc": "C454934",
      "mouser": "637-BZX84C43"
    },
    "distributor_check": {
      "checked_at": "2026-11-13T04:09:55Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "no match"
      },
      "mouser": {
        "pn": "637-BZX84C43",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "A",
        "type": "passive",
        "description": "Anode of the voltage regulator diode, shown as A in the graphic symbol; the datasheet gives no separate electrical limit for this pin."
      },
      {
        "number": "2",
        "name": "n.c.",
        "type": "unconnected",
        "description": "Not connected, as stated in the pinning table."
      },
      {
        "number": "3",
        "name": "K",
        "type": "passive",
        "description": "Cathode of the voltage regulator diode, shown as K in the graphic symbol; the datasheet gives no separate electrical limit for this pin."
      }
    ],
    "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 is a series datasheet (BZX84 series) with one pinout for all variants in the SOT-23 pa; The pin descriptions are limited to the function labels printed in Table 2 (anode, not connected, ca"
        ],
        "pages_sent": 14,
        "cost_usd": 0.0032,
        "at": "2026-11-13T04:09:43"
      },
      "datasheet": {
        "url": "https://assets.nexperia.com/documents/data-sheet/BZX84-C43.pdf",
        "pages": 14,
        "sha256": "e6278027e055c1b0",
        "source_tier": "mfr"
      },
      "cad": "land: KiCad official (CC-BY-SA 4.0); 3D: generated from the datasheet",
      "model_3d_generated": {
        "generator": "factory/gen_pkg3d.py",
        "family": "SOT",
        "height_mm": 1.0,
        "height_basis": "datasheet A, midpoint of min and max",
        "standoff_mm": 0.05,
        "standoff_basis": "family nominal (no datasheet A1 read)",
        "lead_width_mm": 0.36,
        "lead_width_basis": "default: 0.6 x pad width across the lead, at most 0.45 x pitch 1.90 mm; a tab 0.9 x its width (no datasheet b read)",
        "lead_thickness_mm": 0.2,
        "lead_thickness_basis": "default for pitch 1.90 mm, height 1 mm (no datasheet c read)"
      },
      "pins": {
        "total": 3,
        "described": 3,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
      {
        "file": "bzx84-c43.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          2.3,
          2.9,
          1.0
        ],
        "zmin_mm": -0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "b2e241e8b6478e4dd0ef8d9ed78f616ac939f513f1f034e86c85b9f7af57e5d9",
        "checked": "2026-11-13",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "bzx84-c43-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          2.3,
          2.9,
          1.0
        ],
        "zmin_mm": -0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "b25a91a06cd1a1a800b8bcb4960bbbc1cd52bdd0cfd4f94f8981a5031066a0f2",
        "checked": "2026-11-13",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ],
    "package_dims": {
      "package_code": "SOT23 (TO-236AB)",
      "source_page": 10,
      "D": {
        "nom_mm": 2.9,
        "range_mm": [
          2.8,
          3.0
        ]
      },
      "E1": {
        "nom_mm": 1.3,
        "range_mm": [
          1.2,
          1.4
        ]
      },
      "E": {
        "nom_mm": 2.3,
        "range_mm": [
          2.1,
          2.5
        ]
      },
      "A": {
        "nom_mm": 1.0,
        "range_mm": [
          0.9,
          1.1
        ]
      },
      "source": "datasheet package drawing, every number found on its page (extract_pins --task dims)",
      "model_check": {
        "file": "bzx84-c43.step",
        "verdict": "PASS",
        "reasons": [
          "height and body within the datasheet's package drawing"
        ],
        "by": "factory/package_fit.py"
      }
    }
  }
}