1N5917B

{
  "schema_version": 1,
  "type": "component",
  "slug": "1n5917b",
  "title": "1N5917B",
  "brief": "EIC Semicon Zener Diodes, DO-41. 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",
    "1n5917b",
    "factory-2.0.0",
    "extractor-text"
  ],
  "component": {
    "mpn": "1N5917B",
    "manufacturer": "EIC Semicon",
    "package": "DO-41",
    "pin_count": 2,
    "category": "Diodes",
    "subcategory": "Zener Diodes",
    "datasheet": "https://datasheet.lcsc.com/datasheet/pdf/1cacea9428dfde90e8455d6481f6d8a3.pdf",
    "parts": {
      "symbol": "1n5917b.kicad_sym",
      "footprint": "1n5917b.kicad_mod",
      "model_3d": "1n5917b-hero.glb",
      "model_3d_step": "1n5917b.step",
      "lbr": "1n5917b.lbr",
      "model_3d_plain": "1n5917b.glb"
    },
    "distributor_links": {
      "lcsc": "C2988343",
      "digikey": "1N5917B-ND",
      "mouser": "494-1N5917B"
    },
    "distributor_check": {
      "checked_at": "2026-10-22T14:11:25Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "1N5917B-ND",
        "status": "found",
        "lifecycle": "Active"
      },
      "mouser": {
        "pn": "494-1N5917B",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "K",
        "type": "passive",
        "description": "Cathode end of the zener diode, marked by the color band; positive with respect to the anode in zener (reverse) operation, with 1N5917B nominal VZ 4.7 V at IZT 79.8 mA."
      },
      {
        "number": "2",
        "name": "A",
        "type": "passive",
        "description": "Anode lead of the axial DO-41 zener diode, opposite the color-banded cathode end; maximum steady-state dissipation is 1.5 W at TL = 75 °C with 3/8\" lead length."
      }
    ],
    "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: Datasheet does not print pin numbers for the axial DO-41 diode; pin numbers 1 (cathode) and 2 (anode"
        ],
        "pages_sent": 4,
        "cost_usd": 0.0446,
        "at": "2026-10-22T14:09:22"
      },
      "datasheet": {
        "url": "https://datasheet.lcsc.com/datasheet/pdf/1cacea9428dfde90e8455d6481f6d8a3.pdf",
        "pages": 4,
        "sha256": "e98981022089f274",
        "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": "1n5917b.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "body on z = 0, through-hole leads below",
        "extents_mm": [
          10.96,
          2.72,
          5.71
        ],
        "zmin_mm": -2.5,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "c3e23d4b276811b74eecb329bd4480209ad3dbc8cf6e6e3f2a5b542c5ca343c1",
        "checked": "2026-10-22",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "EIC Semicon",
      "Package": "DO-41",
      "Category": "Diodes",
      "Pins": "2"
    },
    "characteristics": {
      "version": 1,
      "source": "datasheet",
      "datasheet_sha256": "e98981022089f27422bb6bdfc9edc217fb5887fe0f3b5095bea31d21a45e0d48",
      "rows": [
        {
          "name": "Zener Voltage tolerance (suffix B)",
          "symbol": "VZ",
          "kind": "tolerance",
          "unit": "%",
          "min": -5,
          "typ": null,
          "max": 5,
          "conditions": "suffix B indicates ± 5% tolerance",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Nominal Zener Voltage",
          "symbol": "VZ",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": 4.7,
          "max": null,
          "conditions": "@ IZT",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Zener Test Current",
          "symbol": "IZT",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": 79.8,
          "max": null,
          "conditions": "",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Maximum Zener Impedance",
          "symbol": "ZZT",
          "kind": "electrical",
          "unit": "Ω",
          "min": null,
          "typ": null,
          "max": 5,
          "conditions": "@ IZT",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Maximum Zener Impedance (knee)",
          "symbol": "ZZK",
          "kind": "electrical",
          "unit": "Ω",
          "min": null,
          "typ": null,
          "max": 500,
          "conditions": "@ IZK = 1.0 mA",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Maximum Reverse Leakage Current",
          "symbol": "IR",
          "kind": "electrical",
          "unit": "µA",
          "min": null,
          "typ": null,
          "max": 5,
          "conditions": "@ VR = 1.5 V",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Maximum DC Zener Current",
          "symbol": "IZM",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": null,
          "max": 319,
          "conditions": "",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Maximum Steady State Power Dissipation",
          "symbol": "PD",
          "kind": "absolute_maximum",
          "unit": "W",
          "min": null,
          "typ": null,
          "max": 1.5,
          "conditions": "@ TL = 75 ºC, Lead Length = 3/8\"",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Operating and Storage Temperature Range",
          "symbol": "TJ,TSTG",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": -65,
          "typ": null,
          "max": 175,
          "conditions": "",
          "source_page": 1,
          "source": "datasheet"
        }
      ]
    }
  },
  "variants": [],
  "sections": [
    "hero",
    "viewers",
    "readme",
    "breadcrumbs",
    "info"
  ],
  "discovery_triggers": [
    "1n5917b"
  ],
  "discovery_pitch": "1N5917B (EIC Semicon) 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",
    "1n5917b.kicad_sym",
    "1n5917b.kicad_mod",
    "1n5917b.glb",
    "1n5917b.step",
    "1n5917b.lbr",
    "docs/hero.png",
    "docs/1n5917b-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "1n5917b-hero.glb",
    "1n5917b-hero.overlay.json"
  ],
  "visibility": {
    "public": true
  }
}