BZV49-C27

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  "type": "component",
  "slug": "bzv49-c27",
  "title": "BZV49-C27",
  "brief": "Nexperia Zener Diodes, SOT-89-3. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.1.0",
  "license": "CC-BY-SA-4.0",
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  "component": {
    "mpn": "BZV49-C27",
    "manufacturer": "Nexperia",
    "package": "SOT-89-3",
    "pin_count": 3,
    "category": "Diodes",
    "subcategory": "Zener Diodes",
    "datasheet": "https://assets.nexperia.com/documents/data-sheet/BZV49-C27.pdf",
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      "lbr": "bzv49-c27.lbr"
    },
    "distributor_links": {
      "lcsc": "C456099"
    },
    "distributor_check": {
      "checked_at": "2026-10-30T19:47:21Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "no match"
      },
      "mouser": {
        "pn": null,
        "status": "no match"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "anode",
        "type": "passive",
        "description": "Anode of the voltage regulator diode; the datasheet's pinning table gives no pin-specific limits for this lead, and the total-series ratings (for example Ptot max. 1 W) apply."
      },
      {
        "number": "2",
        "name": "cathode",
        "type": "passive",
        "description": "Cathode of the voltage regulator diode; the datasheet's pinning table gives no pin-specific limits for this lead, and the total-series ratings (for example IF max. 250 mA) apply."
      },
      {
        "number": "3",
        "name": "anode",
        "type": "passive",
        "description": "Anode of the voltage regulator diode (second anode lead); the datasheet's pinning table gives no pin-specific limits for this lead, and the total-series ratings (for example Tj max. 150 °C) apply."
      }
    ],
    "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 BZV49-C27 is listed in the ordering table (page 3) as a SOT89 device, so the SOT-89-3 pinout app; The pinning table gives pin 1 = anode, pin 2 = cathode, pin 3 = anode. The text does not explicitly ; Pin types are KiCad diode-style 'passive' because the datasheet does not assign power or signal clas"
        ],
        "pages_sent": 11,
        "cost_usd": 0.0389,
        "at": "2026-10-30T19:47:14"
      },
      "datasheet": {
        "url": "https://assets.nexperia.com/documents/data-sheet/BZV49-C27.pdf",
        "pages": 11,
        "sha256": "d11cb65034cc8cae",
        "source_tier": "mfr"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 3,
        "described": 3,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
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        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
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          4.5,
          1.52
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        "zmin_mm": 0,
        "centre_offset_mm": 0.05,
        "footprint_binding": "identity",
        "sha256": "844c0bb504d0c383535d9845c6376fe7a4053241a2ede8d8ef694df3fcfc37c8",
        "checked": "2026-10-30",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
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      {
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        "sha256": "f87470be2fc663785c0fe646f72b4118d837f1a383353c0c1dff582f9df55743",
        "checked": "2026-10-30",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
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    ],
    "package_dims": {
      "package_code": "SOT89",
      "source_page": 9,
      "D": {
        "nom_mm": 4.5,
        "range_mm": [
          4.4,
          4.6
        ]
      },
      "E1": {
        "nom_mm": 2.5,
        "range_mm": [
          2.4,
          2.6
        ]
      },
      "E": {
        "nom_mm": 4,
        "range_mm": [
          3.75,
          4.25
        ]
      },
      "e": {
        "nom_mm": 1.5,
        "range_mm": [
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          null
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      },
      "A": {
        "nom_mm": 1.5,
        "range_mm": [
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          1.6
        ]
      },
      "source": "datasheet package drawing, every number found on its page (extract_pins --task dims)",
      "model_check": {
        "file": "bzv49-c27.step",
        "verdict": "PASS",
        "reasons": [
          "height and body within the datasheet's package drawing"
        ],
        "by": "factory/package_fit.py"
      }
    }
  },
  "metadata": {
    "specs": {
      "Manufacturer": "Nexperia",
      "Package": "SOT-89-3",
      "Category": "Diodes",
      "Pins": "3"
    },
    "characteristics": {
      "version": 1,
      "source": "datasheet",
      "datasheet_sha256": "d11cb65034cc8cae6f411a42068ca92dd3463fafcdc3fdfdecba2f585c4755b0",
      "rows": [
        {
          "name": "Forward current, continuous",
          "symbol": "IF",
          "kind": "absolute_maximum",
          "unit": "mA",
          "min": null,
          "typ": null,
          "max": 250,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Non-repetitive peak reverse current",
          "symbol": "IZSM",
          "kind": "absolute_maximum",
          "unit": "A",
          "min": null,
          "typ": null,
          "max": 1,
          "conditions": "tp = 100 μs; Tamb = 25 °C",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Total power dissipation",
          "symbol": "Ptot",
          "kind": "absolute_maximum",
          "unit": "W",
          "min": null,
          "typ": null,
          "max": 1,
          "conditions": "Tamb = 25 °C; note 1",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Non-repetitive peak reverse power dissipation",
          "symbol": "PZSM",
          "kind": "absolute_maximum",
          "unit": "W",
          "min": null,
          "typ": null,
          "max": 40,
          "conditions": "tp = 100 μs; square wave; Tj = 25 °C prior to surge; see Fig.2",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Storage temperature",
          "symbol": "Tstg",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": -65,
          "typ": null,
          "max": 150,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Junction temperature",
          "symbol": "Tj",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": null,
          "typ": null,
          "max": 150,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Forward voltage",
          "symbol": "VF",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 1,
          "conditions": "IF = 50 mA; see Fig.3",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Working voltage",
          "symbol": "VZ",
          "kind": "electrical",
          "unit": "V",
          "min": 25.1,
          "typ": null,
          "max": 28.9,
          "conditions": "at IZtest = 2 mA; Tj = 25 °C",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Differential resistance",
          "symbol": "rdif",
          "kind": "electrical",
          "unit": "Ω",
          "min": null,
          "typ": 25,
          "max": 80,
          "conditions": "at IZtest = 2 mA",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Temperature coefficient",
          "symbol": "SZ",
          "kind": "temperature_coefficient",
          "unit": "mV/K",
          "min": 21.4,
          "typ": 23.4,
          "max": 25.3,
          "conditions": "at IZtest = 2 mA; see Figs 4 and 5",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Reverse current",
          "symbol": "IR",
          "kind": "electrical",
          "unit": "μA",
          "min": null,
          "typ": null,
          "max": 0.05,
          "conditions": "at VR = 18.9 V",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Thermal resistance, junction to tie-point",
          "symbol": "Rth(j-tp)",
          "kind": "thermal",
          "unit": "K/W",
          "min": null,
          "typ": 15,
          "max": null,
          "conditions": "",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "Thermal resistance, junction to ambient",
          "symbol": "Rth(j-a)",
          "kind": "thermal",
          "unit": "K/W",
          "min": null,
          "typ": 125,
          "max": null,
          "conditions": "note 1",
          "source_page": 7,
          "source": "datasheet"
        }
      ]
    }
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  "discovery_pitch": "BZV49-C27 (Nexperia) component page: datasheet pinout, KiCad symbol, footprint and 3D.",
  "author": {
    "name": "Ray"
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