Z2E12B

{
  "schema_version": 1,
  "type": "component",
  "slug": "z2e12b",
  "title": "Z2E12B",
  "brief": "amsem Zener Diodes, SMB. Unpolarised two-terminal part: the datasheet prints no pin numbers, so pins 1 and 2 follow the library convention, KiCad symbol/footprint/3D.",
  "version": "0.1.0",
  "license": "CC-BY-SA-4.0",
  "tags": [
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    "diodes",
    "z2e12b",
    "factory-2.0.0",
    "extractor-text"
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  "component": {
    "mpn": "Z2E12B",
    "manufacturer": "amsem",
    "package": "SMB",
    "pin_count": 2,
    "category": "Diodes",
    "subcategory": "Zener Diodes",
    "datasheet": "https://datasheet.lcsc.com/datasheet/pdf/9a30d26aabe4f773b1f5a6d61aaec09d.pdf",
    "parts": {
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      "model_3d_step": "z2e12b-etched.step",
      "model_3d_step_plain": "z2e12b.step",
      "lbr": "z2e12b.lbr"
    },
    "distributor_links": {
      "lcsc": "C7466348"
    },
    "distributor_check": {
      "checked_at": "2026-10-22T18:24:16Z",
      "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 banded/marked end per the datasheet; pad 1 of the KiCad diode footprint."
      },
      {
        "number": "2",
        "name": "A",
        "type": "passive",
        "description": "Anode."
      }
    ],
    "provenance": {
      "extractor": "extract_pins",
      "factory_chain": {
        "factory": "2.0.0",
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        "primary_model": "cathode-band convention",
        "primary_mode": "convention",
        "consensus_model": null,
        "consensus": "agreed",
        "guards": "pin_guards 0.1: passed",
        "guard_notes": [
          "vision extraction: provenance cannot be text-verified; needs consensus"
        ],
        "pages_sent": 5,
        "cost_usd": 0.0203,
        "at": "2026-10-22T18:24:01"
      },
      "datasheet": {
        "url": "https://datasheet.lcsc.com/datasheet/pdf/9a30d26aabe4f773b1f5a6d61aaec09d.pdf",
        "pages": 5,
        "sha256": "dd33d2e29d311493",
        "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": "z2e12b.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          5.3,
          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": "z2e12b-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
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          2.15
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "692ee622d741f8d2a69317b71ef05080e4cb26213e666824dbe679b1dcb40549",
        "checked": "2026-10-22",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "amsem",
      "Package": "SMB",
      "Category": "Diodes",
      "Pins": "2"
    },
    "characteristics": {
      "version": 1,
      "source": "datasheet",
      "datasheet_sha256": "dd33d2e29d311493285f1dc4665940f83bb6760f76e0260b78b5ef1c10e59303",
      "rows": [
        {
          "name": "Nominal Zener Voltage",
          "symbol": "VZ",
          "kind": "electrical",
          "unit": "V",
          "min": 11.4,
          "typ": 12,
          "max": 12.6,
          "conditions": "@ IZT = 41.5 mA",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Zener Test Current",
          "symbol": "IZT",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": 41.5,
          "max": null,
          "conditions": "",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Max. Zener Impedance",
          "symbol": "ZZT",
          "kind": "electrical",
          "unit": "Ω",
          "min": null,
          "typ": null,
          "max": 5,
          "conditions": "@ IZT",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Max. Zener Impedance (knee)",
          "symbol": "ZZK",
          "kind": "electrical",
          "unit": "Ω",
          "min": null,
          "typ": null,
          "max": 700,
          "conditions": "@ IZK = 0.25 mA",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Max. Reverse Leakage Current",
          "symbol": "IR",
          "kind": "electrical",
          "unit": "μA",
          "min": null,
          "typ": null,
          "max": 1,
          "conditions": "@ VR = 9.1 V",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Power Dissipation",
          "symbol": "PD",
          "kind": "absolute_maximum",
          "unit": "W",
          "min": null,
          "typ": null,
          "max": 2,
          "conditions": "at TL = 75°C (Note 1), mounted on 5.0 x 5.0mm",
          "source_page": 1,
          "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": 1,
          "source": "datasheet"
        }
      ]
    }
  },
  "variants": [],
  "sections": [
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    "viewers",
    "readme",
    "breadcrumbs",
    "info"
  ],
  "discovery_triggers": [
    "z2e12b"
  ],
  "discovery_pitch": "Z2E12B (amsem) component page: datasheet pinout, KiCad symbol, footprint and 3D.",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
  },
  "dependencies": {},
  "hero": {
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    "path": "docs/hero.png"
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    "viewers/footprint.html",
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  "visibility": {
    "public": true
  }
}