main
Ray Set visibility: public 11c343e 19h ago
{
  "schema_version": 1,
  "type": "component",
  "slug": "1n5387b",
  "title": "1N5387B",
  "brief": "LGE Zener Diodes, DO-15. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.1.0",
  "license": "CC-BY-SA-4.0",
  "tags": [
    "component",
    "diodes",
    "1n5387b",
    "factory-2.0.0",
    "extractor-text"
  ],
  "component": {
    "mpn": "1N5387B",
    "manufacturer": "LGE",
    "package": "DO-15",
    "pin_count": 2,
    "category": "Diodes",
    "subcategory": "Zener Diodes",
    "datasheet": "https://datasheet.lcsc.com/datasheet/pdf/f8888a3b0d1cc9dbacb57578b1418da5.pdf",
    "parts": {
      "symbol": "1n5387b.kicad_sym",
      "footprint": "1n5387b.kicad_mod",
      "model_3d": "1n5387b-hero.glb",
      "model_3d_step": "1n5387b.step",
      "lbr": "1n5387b.lbr",
      "model_3d_plain": "1n5387b.glb"
    },
    "distributor_links": {
      "lcsc": "C5334281",
      "digikey": "4878-1N5387BCT-ND",
      "mouser": "637-1N5387B"
    },
    "distributor_check": {
      "checked_at": "2026-10-22T10:46:25Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "4878-1N5387BCT-ND",
        "status": "found",
        "lifecycle": "Active"
      },
      "mouser": {
        "pn": "637-1N5387B",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "K",
        "type": "passive",
        "description": "Cathode terminal, marked by the cathode band; connects to the positive side in zener (reverse) operation, with VZ of 190 V at IZT 5.0 mA for the 1N5387B."
      },
      {
        "number": "2",
        "name": "A",
        "type": "passive",
        "description": "Anode terminal, opposite the cathode band; 5.0 W maximum DC power dissipation at TL=75°C with junction and storage range of -55 to +150°C."
      }
    ],
    "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 has no pin table. Pin numbers 1 and 2 are assigned by convention for the two-lead axia"
        ],
        "pages_sent": 5,
        "cost_usd": 0.0551,
        "at": "2026-10-22T10:45:23"
      },
      "datasheet": {
        "url": "https://datasheet.lcsc.com/datasheet/pdf/f8888a3b0d1cc9dbacb57578b1418da5.pdf",
        "pages": 5,
        "sha256": "b2a8599d7ca807f9",
        "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": "1n5387b.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "body on z = 0, through-hole leads below",
        "extents_mm": [
          13.6,
          3.62,
          6.61
        ],
        "zmin_mm": -2.5,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "830b6b0897c8be8055aa6c51f81fa67e5f932b1bf037644261cdba627d18a8b1",
        "checked": "2026-10-22",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "LGE",
      "Package": "DO-15",
      "Category": "Diodes",
      "Pins": "2"
    },
    "appearance": {
      "contacts": {
        "quote": "NOTES: (1) Mounted on 8.0mm2 copper pads to each terminal.",
        "page": 1,
        "doc": "ds.pdf",
        "material": "copper"
      },
      "version": 1,
      "datasheet_sha256": "b2a8599d7ca807f9b00d5c7fa6fa63dc6971728c6442658a78fac39a6485d233"
    },
    "characteristics": {
      "version": 1,
      "source": "datasheet",
      "datasheet_sha256": "b2a8599d7ca807f9b00d5c7fa6fa63dc6971728c6442658a78fac39a6485d233",
      "rows": [
        {
          "name": "Zener voltage tolerance (B suffix)",
          "symbol": "VZ",
          "kind": "tolerance",
          "unit": "%",
          "min": -5,
          "typ": null,
          "max": 5,
          "conditions": "suffix B",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Zener voltage",
          "symbol": "VZ",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": 190,
          "max": null,
          "conditions": "@IZT",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Zener test current",
          "symbol": "IZT",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": 5,
          "max": null,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Max zener impedance",
          "symbol": "ZZT",
          "kind": "electrical",
          "unit": "Ω",
          "min": null,
          "typ": null,
          "max": 450,
          "conditions": "ZZT@IZT",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Max zener impedance at knee",
          "symbol": "ZZK",
          "kind": "electrical",
          "unit": "Ω",
          "min": null,
          "typ": null,
          "max": 1850,
          "conditions": "ZZT@IZK=1mA",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Max reverse leakage current",
          "symbol": "IR",
          "kind": "electrical",
          "unit": "µA",
          "min": null,
          "typ": null,
          "max": 0.5,
          "conditions": "at VR = 144 V",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Reverse voltage",
          "symbol": "VR",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": 144,
          "max": null,
          "conditions": "for IR test",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Surge current",
          "symbol": "Ir",
          "kind": "electrical",
          "unit": "A",
          "min": null,
          "typ": null,
          "max": 0.9,
          "conditions": "8.3ms square wave, non-recurrent",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Voltage regulation",
          "symbol": "ΔVZ",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 5,
          "conditions": "VZ at 10% and 50% of IZM",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Maximum regulator current",
          "symbol": "IZM",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": null,
          "max": 25,
          "conditions": "TL=75, B-suffix",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "DC power dissipation",
          "symbol": "PD",
          "kind": "absolute_maximum",
          "unit": "W",
          "min": null,
          "typ": null,
          "max": 5,
          "conditions": "TL=75, zero lead length",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Power derating above 75",
          "symbol": "PD",
          "kind": "absolute_maximum",
          "unit": "mW",
          "min": null,
          "typ": null,
          "max": 40,
          "conditions": "derate above 75 (NOTE 1)",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Junction temperature",
          "symbol": "TJ",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": -55,
          "typ": null,
          "max": 150,
          "conditions": "",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Storage temperature range",
          "symbol": "Ts",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": -55,
          "typ": null,
          "max": 150,
          "conditions": "",
          "source_page": 1,
          "source": "datasheet"
        }
      ]
    }
  },
  "variants": [],
  "sections": [
    "hero",
    "viewers",
    "readme",
    "breadcrumbs",
    "info"
  ],
  "discovery_triggers": [
    "1n5387b"
  ],
  "discovery_pitch": "1N5387B (LGE) component page: datasheet pinout, KiCad symbol, footprint and 3D.",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
  },
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "1n5387b.kicad_sym",
    "1n5387b.kicad_mod",
    "1n5387b.glb",
    "1n5387b.step",
    "1n5387b.lbr",
    "docs/hero.png",
    "docs/1n5387b-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "1n5387b-hero.glb",
    "1n5387b-hero.overlay.json"
  ],
  "visibility": {
    "public": true
  }
}