MM3Z18-MS

{
  "schema_version": 1,
  "type": "component",
  "slug": "mm3z18-ms",
  "title": "MM3Z18-MS",
  "brief": "MSKSEMI Zener Diodes, SOD-323. 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",
    "mm3z18-ms",
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    "extractor-text"
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  "component": {
    "mpn": "MM3Z18-MS",
    "manufacturer": "MSKSEMI",
    "package": "SOD-323",
    "pin_count": 2,
    "category": "Diodes",
    "subcategory": "Zener Diodes",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8603385853586919424",
    "parts": {
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      "footprint": "mm3z18-ms.kicad_mod",
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      "model_3d_plain": "mm3z18-ms-etched.glb",
      "model_3d_step": "mm3z18-ms-etched.step",
      "model_3d_step_plain": "mm3z18-ms.step",
      "lbr": "mm3z18-ms.lbr"
    },
    "distributor_links": {
      "lcsc": "C22459426"
    },
    "distributor_check": {
      "checked_at": "2026-10-22T20:03:37Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "quota"
      },
      "mouser": {
        "pn": null,
        "status": "quota"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "CATHODE",
        "type": "passive",
        "description": "Cathode terminal of the zener diode; the datasheet gives no pin-level electrical limits beyond the device ratings (Ptot 200 mW, Tj/Tstg -55 to +150 °C)."
      },
      {
        "number": "2",
        "name": "ANODE",
        "type": "passive",
        "description": "Anode terminal of the zener diode; the datasheet gives no pin-level electrical limits beyond the device ratings (Ptot 200 mW, Tj/Tstg -55 to +150 °C)."
      }
    ],
    "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 pin configuration on page 2 is for the family datasheet MM3ZXXX-MS and is not labelled per part ; The datasheet names the pins only as Cathode (1) and Anode (2) and states no pin-specific limits or "
        ],
        "pages_sent": 5,
        "cost_usd": 0.02,
        "at": "2026-10-22T20:02:41"
      },
      "datasheet": {
        "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8603385853586919424",
        "pages": 5,
        "sha256": "ad4064742873770b",
        "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": "mm3z18-ms.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          2.5,
          1.25,
          1.11
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "cd8619b2119cd95683a2c5e660ab4f2d4db674f696cd6f9e9756f221171a214d",
        "checked": "2026-10-22",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "mm3z18-ms-etched.step",
        "role": "eda",
        "up": "Z",
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        "origin": "footprint origin = pad-pattern centre",
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        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "028ce75fc8713d89beabd00b04c1549e859f6d3c0cb66290de81184720c1703b",
        "checked": "2026-10-22",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "MSKSEMI",
      "Package": "SOD-323",
      "Category": "Diodes",
      "Pins": "2"
    },
    "characteristics": {
      "version": 1,
      "source": "datasheet",
      "datasheet_sha256": "ad4064742873770b811a3c8b3bf4c056b68a59931215b976d351d0e7eba9e2bc",
      "rows": [
        {
          "name": "Dynamic impedance",
          "symbol": "ZZT",
          "kind": "electrical",
          "unit": "Ω",
          "min": null,
          "typ": null,
          "max": 45,
          "conditions": "at IZT = 5 mA",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Reverse current",
          "symbol": "IR",
          "kind": "electrical",
          "unit": "μA",
          "min": null,
          "typ": null,
          "max": 0.1,
          "conditions": "at VR = 13 V",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Total power dissipation",
          "symbol": "Ptot",
          "kind": "absolute_maximum",
          "unit": "mW",
          "min": null,
          "typ": null,
          "max": 200,
          "conditions": "",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Operating and storage temperature range",
          "symbol": "Tj, Tstg",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": -55,
          "typ": null,
          "max": 150,
          "conditions": "",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Zener voltage tolerance (approximate, family-level)",
          "symbol": "",
          "kind": "tolerance",
          "unit": "%",
          "min": -5,
          "typ": null,
          "max": 5,
          "conditions": "",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Thermal resistance, junction to ambient",
          "symbol": "RθJA",
          "kind": "thermal",
          "unit": "°C/W",
          "min": null,
          "typ": 417,
          "max": null,
          "conditions": "junction to ambient; P.C.B. mounted with 2.0\" x 2.0\" copper area pads",
          "source_page": 2,
          "source": "datasheet"
        }
      ]
    }
  },
  "variants": [],
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  "discovery_triggers": [
    "mm3z18-ms"
  ],
  "discovery_pitch": "MM3Z18-MS (MSKSEMI) component page: datasheet pinout, KiCad symbol, footprint and 3D.",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
  },
  "dependencies": {},
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    "type": "image",
    "path": "docs/hero.png"
  },
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  "visibility": {
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}