main
Ray Set visibility: public 44edb48 5d ago
{
  "schema_version": 1,
  "type": "component",
  "slug": "smb3z47aq",
  "title": "SMB3Z47AQ",
  "brief": "Yangzhou Yangjie Elec Tech Zener Diodes, SMB(DO-214AA). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.1.0",
  "license": "CC-BY-SA-4.0",
  "tags": [
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  "component": {
    "mpn": "SMB3Z47AQ",
    "manufacturer": "Yangzhou Yangjie Elec Tech",
    "package": "SMB(DO-214AA)",
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    "category": "Diodes",
    "subcategory": "Zener Diodes",
    "datasheet": "https://datasheet.lcsc.com/datasheet/pdf/5405812679ec3e98809cb4e6b46037b8.pdf",
    "parts": {
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      "footprint": "smb3z47aq.kicad_mod",
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      "model_3d_plain": "smb3z47aq-etched.glb",
      "model_3d_step": "smb3z47aq-etched.step",
      "model_3d_step_plain": "smb3z47aq.step",
      "lbr": "smb3z47aq.lbr"
    },
    "distributor_links": {
      "lcsc": "C20604550"
    },
    "distributor_check": {
      "checked_at": "2026-10-22T06:37:08Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "no match"
      },
      "mouser": {
        "pn": null,
        "status": "no match"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "K",
        "type": "passive",
        "description": "Cathode, the end marked by the cathode line; Zener voltage 47 V typ. (44.65 V to 49.35 V) at IZT = 16 mA, with 3.0 W maximum DC power dissipation at TL = 75 °C."
      },
      {
        "number": "2",
        "name": "A",
        "type": "passive",
        "description": "Anode, the end opposite the cathode line; maximum instantaneous forward voltage 1.5 V at IF = 200 mA."
      }
    ],
    "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 prints no pin numbers for DO-214AA (SMB). It only states that the cathode line denotes"
        ],
        "pages_sent": 5,
        "cost_usd": 0.0539,
        "at": "2026-10-22T06:36:07"
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      "datasheet": {
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        "pages": 5,
        "sha256": "563098a9f616c73d",
        "source_tier": "lcsc"
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      "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"
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    "models_3d": [
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        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
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          3.55,
          2.15
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "029466277d91e9f5492556be93e46611049e07115c7913880c547afa96058ed4",
        "checked": "2026-10-22",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "smb3z47aq-etched.step",
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        "units": "mm",
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        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "530cafd5a213f77a589472311548decfd7945da41bf30ac6b92a0aa058bb0729",
        "checked": "2026-10-22",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "Yangzhou Yangjie Elec Tech",
      "Package": "SMB(DO-214AA)",
      "Category": "Diodes",
      "Pins": "2"
    },
    "appearance": {
      "contacts": {
        "quote": "● Terminals: Tin plated leads, solderable per J-STD-002 and JESD22-B102",
        "page": 1,
        "doc": "ds.pdf",
        "plating": "tin"
      },
      "housing": {
        "quote": "4. Body color: Black",
        "page": 4,
        "doc": "ds.pdf",
        "colour": "black"
      },
      "version": 1,
      "datasheet_sha256": "563098a9f616c73d01958ed27d3fd8fd916eda7d37c3eca011a59f298a8a4103"
    },
    "characteristics": {
      "version": 1,
      "source": "datasheet",
      "datasheet_sha256": "563098a9f616c73d01958ed27d3fd8fd916eda7d37c3eca011a59f298a8a4103",
      "rows": [
        {
          "name": "Zener voltage",
          "symbol": "VZ",
          "kind": "electrical",
          "unit": "V",
          "min": 44.65,
          "typ": 47,
          "max": 49.35,
          "conditions": "at IZT",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Test current",
          "symbol": "IZT",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": 16,
          "max": null,
          "conditions": "",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Maximum dynamic impedance",
          "symbol": "ZZT",
          "kind": "electrical",
          "unit": "Ω",
          "min": null,
          "typ": null,
          "max": 38,
          "conditions": "at IZT",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Maximum dynamic impedance (knee)",
          "symbol": "ZZK",
          "kind": "electrical",
          "unit": "Ω",
          "min": null,
          "typ": null,
          "max": 1500,
          "conditions": "at IZK = 0.25 mA",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Knee test current",
          "symbol": "IZK",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": 0.25,
          "max": null,
          "conditions": "",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Maximum reverse leakage current",
          "symbol": "IR",
          "kind": "electrical",
          "unit": "μA",
          "min": null,
          "typ": null,
          "max": 0.5,
          "conditions": "at VR = 35.6 V",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Reverse test voltage",
          "symbol": "VR",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": 35.6,
          "max": null,
          "conditions": "",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Maximum DC Zener current",
          "symbol": "IZM",
          "kind": "absolute_maximum",
          "unit": "mA",
          "min": null,
          "typ": null,
          "max": 57,
          "conditions": "",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "DC power dissipation",
          "symbol": "PD",
          "kind": "absolute_maximum",
          "unit": "W",
          "min": null,
          "typ": null,
          "max": 3,
          "conditions": "TL = 75 °C",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Maximum instantaneous forward voltage",
          "symbol": "VF",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 1.5,
          "conditions": "IF=200mA",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Junction temperature",
          "symbol": "TJ",
          "kind": "absolute_maximum",
          "unit": "℃",
          "min": -55,
          "typ": null,
          "max": 150,
          "conditions": "",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Storage temperature range",
          "symbol": "Tstg",
          "kind": "absolute_maximum",
          "unit": "℃",
          "min": -55,
          "typ": null,
          "max": 150,
          "conditions": "",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Thermal resistance junction to lead",
          "symbol": "RθJ-L",
          "kind": "thermal",
          "unit": "℃/W",
          "min": null,
          "typ": 25,
          "max": null,
          "conditions": "junction to lead, mounted on PCB with 10 mm x 10 mm copper pad",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Thermal resistance junction to ambient",
          "symbol": "RθJ-A",
          "kind": "thermal",
          "unit": "℃/W",
          "min": null,
          "typ": 100,
          "max": null,
          "conditions": "junction to ambient, mounted on PCB with 10 mm x 10 mm copper pad",
          "source_page": 1,
          "source": "datasheet"
        }
      ]
    }
  },
  "variants": [],
  "sections": [
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    "readme",
    "breadcrumbs",
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  "discovery_triggers": [
    "smb3z47aq"
  ],
  "discovery_pitch": "SMB3Z47AQ (Yangzhou Yangjie Elec Tech) component page: datasheet pinout, KiCad symbol, footprint and 3D.",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
  },
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    "path": "docs/hero.png"
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    "smb3z47aq.lbr",
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    "smb3z47aq-hero.overlay.json",
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  "visibility": {
    "public": true
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}