SML4746A-E3

{
  "slug": "sml4746a-e3",
  "version": "0.1.0",
  "type": "component",
  "description": "Vishay Intertech Zener Diodes, DO-214AC(SMA). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "diodes",
    "sml4746a-e3",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "sml4746a-e3.kicad_sym",
    "sml4746a-e3.kicad_mod",
    "sml4746a-e3.glb",
    "sml4746a-e3.step",
    "sml4746a-e3.lbr",
    "docs/hero.png",
    "docs/sml4746a-e3-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "sml4746a-e3-hero.glb",
    "sml4746a-e3-hero.overlay.json",
    "sml4746a-e3-etched.glb"
  ],
  "component": {
    "mpn": "SML4746A-E3",
    "manufacturer": "Vishay Intertech",
    "package": "DO-214AC(SMA)",
    "pin_count": 2,
    "category": "Diodes",
    "subcategory": "Zener Diodes",
    "datasheet": "https://datasheet.lcsc.com/datasheet/pdf/4f86eb99157c708b3fcd1e6679dc44ec.pdf",
    "parts": {
      "symbol": "sml4746a-e3.kicad_sym",
      "footprint": "sml4746a-e3.kicad_mod",
      "model_3d": "sml4746a-e3-hero.glb",
      "model_3d_plain": "sml4746a-e3-etched.glb",
      "model_3d_step": "sml4746a-e3-etched.step",
      "model_3d_step_plain": "sml4746a-e3.step",
      "lbr": "sml4746a-e3.lbr"
    },
    "distributor_links": {
      "lcsc": "C3733453"
    },
    "distributor_check": {
      "checked_at": "2026-10-23T18:08:34Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "deferred",
        "error": "shared DigiKey quota guard: 887 calls left today"
      },
      "mouser": {
        "pn": null,
        "status": "no match"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "K",
        "type": "passive",
        "description": "Cathode (marked with cathode band); Zener voltage VZ nominal 18 V at IZT1 = 14 mA for SML4746, with ±5 % tolerance for suffix A."
      },
      {
        "number": "2",
        "name": "A",
        "type": "passive",
        "description": "Anode; the datasheet shows only a two-terminal DO-214AC package with a cathode band and gives no explicit pin numbers."
      }
    ],
    "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",
        "consensus_model": "claude-sonnet-5-5",
        "consensus": "agreed",
        "guards": "pin_guards 0.1: passed",
        "guard_notes": [
          "extractor flagged: The datasheet package drawing shows a two-terminal DO-214AC (SMA) with a cathode band but does not p"
        ],
        "pages_sent": 5,
        "cost_usd": 0.0585,
        "at": "2026-10-23T18:08:11"
      },
      "datasheet": {
        "url": "https://datasheet.lcsc.com/datasheet/pdf/4f86eb99157c708b3fcd1e6679dc44ec.pdf",
        "pages": 5,
        "sha256": "15b3fea9a6e65941",
        "source_tier": "mfr"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 2,
        "described": 2,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
      {
        "file": "sml4746a-e3.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          5.0,
          2.7,
          2.22
        ],
        "zmin_mm": -0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "1cfddd4e3b1bf22b8fc6ee3258c2aade882ed7b85b528e23b9db42437775a1db",
        "checked": "2026-10-23",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "sml4746a-e3-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          5.0,
          2.7,
          2.22
        ],
        "zmin_mm": -0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "b1dfa673c745c8c983d9f5871df2ca508749079a7815197a3bf8d9d5f337974b",
        "checked": "2026-10-23",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}