1SMA4743A

{
  "slug": "1sma4743a",
  "version": "0.1.0",
  "type": "component",
  "description": "hongjiacheng Zener Diodes, DO-214AC(SMA). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "diodes",
    "1sma4743a",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "1sma4743a.kicad_sym",
    "1sma4743a.kicad_mod",
    "1sma4743a.glb",
    "1sma4743a.step",
    "1sma4743a.lbr",
    "docs/hero.png",
    "docs/1sma4743a-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "1sma4743a-hero.glb",
    "1sma4743a-hero.overlay.json",
    "1sma4743a-etched.glb"
  ],
  "component": {
    "mpn": "1SMA4743A",
    "manufacturer": "hongjiacheng",
    "package": "DO-214AC(SMA)",
    "pin_count": 2,
    "category": "Diodes",
    "subcategory": "Zener Diodes",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8755887630225412096",
    "parts": {
      "symbol": "1sma4743a.kicad_sym",
      "footprint": "1sma4743a.kicad_mod",
      "model_3d": "1sma4743a-hero.glb",
      "model_3d_plain": "1sma4743a-etched.glb",
      "model_3d_step": "1sma4743a-etched.step",
      "model_3d_step_plain": "1sma4743a.step",
      "lbr": "1sma4743a.lbr"
    },
    "distributor_links": {
      "lcsc": "C19077481",
      "digikey": "6557-1SMA4743ATR-ND"
    },
    "distributor_check": {
      "checked_at": "2026-10-12T16:07:10Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "6557-1SMA4743ATR-ND",
        "status": "found",
        "lifecycle": "Active"
      },
      "mouser": {
        "pn": null,
        "status": "no match"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "K",
        "type": "passive",
        "description": "Terminal 1 of the two-terminal zener diode in the DO-214AC(SMA) package; the cathode line on the package marks the cathode end, but the datasheet does not explicitly map terminal 1 to cathode."
      },
      {
        "number": "2",
        "name": "A",
        "type": "passive",
        "description": "Terminal 2 of the two-terminal zener diode in the DO-214AC(SMA) package, opposite to terminal 1; the datasheet does not explicitly state it is the anode."
      }
    ],
    "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 two-terminal zener diode. The Function Diagram on page 1 shows terminals labelled; The datasheet does not give a pin-level electrical limit for either terminal; the only ratings are p; The MPN 1SMA4743A is listed in the family table on page 2 (Vz nominal 13 V) and the package DO-214AC"
        ],
        "pages_sent": 4,
        "cost_usd": 0.0228,
        "at": "2026-10-12T16:06:54"
      },
      "datasheet": {
        "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8755887630225412096",
        "pages": 4,
        "sha256": "a029b6256b4d07a8",
        "source_tier": "lcsc"
      },
      "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": "1sma4743a.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": "2026-10-12",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "1sma4743a-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": "070c84faabe69714e030b50b3fc48cf05a6ff2dd4c586b34937382421950ecc9",
        "checked": "2026-10-12",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}