main
Ray Set visibility: public ce79557 9d ago
{
  "schema_version": 1,
  "type": "component",
  "slug": "mmsz5226b-e3-08",
  "title": "MMSZ5226B-E3-08",
  "brief": "Vishay Intertech Zener Diodes, SOD-123. 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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    "diodes",
    "mmsz5226b-e3-08",
    "factory-2.0.0",
    "extractor-text"
  ],
  "component": {
    "mpn": "MMSZ5226B-E3-08",
    "manufacturer": "Vishay Intertech",
    "package": "SOD-123",
    "pin_count": 2,
    "category": "Diodes",
    "subcategory": "Zener Diodes",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8603146962338533376",
    "parts": {
      "symbol": "mmsz5226b-e3-08.kicad_sym",
      "footprint": "mmsz5226b-e3-08.kicad_mod",
      "model_3d": "mmsz5226b-e3-08-hero.glb",
      "model_3d_plain": "mmsz5226b-e3-08-etched.glb",
      "model_3d_step": "mmsz5226b-e3-08-etched.step",
      "model_3d_step_plain": "mmsz5226b-e3-08.step",
      "lbr": "mmsz5226b-e3-08.lbr"
    },
    "distributor_links": {
      "lcsc": "C3731681"
    },
    "distributor_check": {
      "checked_at": "2026-10-17T23:50:33Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "quota"
      },
      "mouser": {
        "pn": null,
        "status": "quota"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "K",
        "type": "passive",
        "description": "Cathode, the end marked with the cathode bar; the Zener is reverse-biased with this pin positive, with VZ 3.3 V nominal at IZT 20 mA for MMSZ5226B (±5 %)."
      },
      {
        "number": "2",
        "name": "A",
        "type": "passive",
        "description": "Anode, the end opposite the cathode bar; the maximum power dissipation is 500 mW (RthJL = 250 K/W) or 300 mW on an FR-4 board with the recommended footprint."
      }
    ],
    "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: The package drawing on page 4 shows only the cathode bar and has no pin numbers. The \"1 2\" labels co",
          "vision extraction: provenance cannot be text-verified; needs consensus"
        ],
        "pages_sent": 6,
        "cost_usd": 0.1489,
        "at": "2026-10-17T23:48:33"
      },
      "datasheet": {
        "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8603146962338533376",
        "pages": 6,
        "sha256": "19d1a0b9567dac98",
        "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": "mmsz5226b-e3-08.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          3.5,
          1.6,
          1.1
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "132323445e3d1f9231e81c083cd88a33cd204dd8b96063bb2ed1f3ab4470c7e7",
        "checked": "2026-10-17",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "mmsz5226b-e3-08-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
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          1.1
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "26398380778680e8f5fcea4717ad796edf3e427280b428cc6d403e2455c0f9cb",
        "checked": "2026-10-17",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "Vishay Intertech",
      "Package": "SOD-123",
      "Category": "Diodes",
      "Pins": "2"
    },
    "characteristics": {
      "version": 1,
      "source": "datasheet",
      "datasheet_sha256": "19d1a0b9567dac98a7027795cc44370e34a3f38cc9d0ccd6c40a8f5f54793466",
      "rows": [
        {
          "name": "Zener voltage tolerance (B suffix, ±5 %)",
          "symbol": "VZ",
          "kind": "tolerance",
          "unit": "%",
          "min": -5,
          "typ": null,
          "max": 5,
          "conditions": "B suffix (MMSZ5226B)",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Reverse leakage current",
          "symbol": "IR",
          "kind": "electrical",
          "unit": "μA",
          "min": null,
          "typ": null,
          "max": 25,
          "conditions": "VR = 1 V",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Dynamic resistance",
          "symbol": "ZZ",
          "kind": "electrical",
          "unit": "Ω",
          "min": null,
          "typ": null,
          "max": 28,
          "conditions": "IZT1 = 20 mA",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Dynamic resistance (knee)",
          "symbol": "ZZK",
          "kind": "electrical",
          "unit": "Ω",
          "min": null,
          "typ": null,
          "max": 1600,
          "conditions": "IZT2 = 0.25 mA",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Maximum forward voltage",
          "symbol": "VF",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 0.9,
          "conditions": "IF = 10 mA",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Power dissipation",
          "symbol": "Ptot",
          "kind": "absolute_maximum",
          "unit": "mW",
          "min": null,
          "typ": null,
          "max": 500,
          "conditions": "RthJL = 250 K/W",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Power dissipation on FR-4 board",
          "symbol": "Ptot",
          "kind": "absolute_maximum",
          "unit": "mW",
          "min": null,
          "typ": null,
          "max": 300,
          "conditions": "On FR-4 board with recommended soldering footprint",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Junction temperature",
          "symbol": "Tj",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": null,
          "typ": null,
          "max": 150,
          "conditions": "",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Operating temperature range",
          "symbol": "Top",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": -55,
          "typ": null,
          "max": 150,
          "conditions": "",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Storage temperature range",
          "symbol": "Tstg",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": -65,
          "typ": null,
          "max": 150,
          "conditions": "",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Nominal Zener voltage",
          "symbol": "VZ",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": 3.3,
          "max": null,
          "conditions": "IZT1 = 20 mA",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Temperature coefficient of VZ",
          "symbol": "αVZ",
          "kind": "temperature_coefficient",
          "unit": "%/°C",
          "min": null,
          "typ": -0.057,
          "max": null,
          "conditions": "",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Thermal resistance junction to lead",
          "symbol": "RthJL",
          "kind": "thermal",
          "unit": "K/W",
          "min": null,
          "typ": 250,
          "max": null,
          "conditions": "",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Thermal resistance junction to ambient",
          "symbol": "RthJA",
          "kind": "thermal",
          "unit": "K/W",
          "min": null,
          "typ": 420,
          "max": null,
          "conditions": "According to JEDEC 51-3 on FR-4 board with recommended soldering footprint",
          "source_page": 1,
          "source": "datasheet"
        }
      ]
    }
  },
  "variants": [],
  "sections": [
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    "readme",
    "breadcrumbs",
    "info"
  ],
  "discovery_triggers": [
    "mmsz5226b-e3-08"
  ],
  "discovery_pitch": "MMSZ5226B-E3-08 (Vishay Intertech) component page: datasheet pinout, KiCad symbol, footprint and 3D.",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
  },
  "dependencies": {},
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    "path": "docs/hero.png"
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    "mmsz5226b-e3-08.lbr",
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    "viewers/footprint.html",
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    "mmsz5226b-e3-08-hero.overlay.json",
    "mmsz5226b-e3-08-etched.glb"
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  "visibility": {
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}