1N4757APF

{
  "slug": "1n4757apf",
  "version": "0.1.0",
  "type": "component",
  "description": "ST(Semtech) Zener Diodes, DO-41. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "diodes",
    "1n4757apf",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "1n4757apf.kicad_sym",
    "1n4757apf.kicad_mod",
    "1n4757apf.glb",
    "1n4757apf.step",
    "1n4757apf.lbr",
    "docs/hero.png",
    "docs/1n4757apf-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "1n4757apf-hero.glb",
    "1n4757apf-hero.overlay.json"
  ],
  "component": {
    "mpn": "1N4757APF",
    "manufacturer": "ST(Semtech)",
    "package": "DO-41",
    "pin_count": 2,
    "category": "Diodes",
    "subcategory": "Zener Diodes",
    "datasheet": "https://datasheet.lcsc.com/datasheet/pdf/d8b82e83cce74889cc513a8fe9c21b0b.pdf",
    "parts": {
      "symbol": "1n4757apf.kicad_sym",
      "footprint": "1n4757apf.kicad_mod",
      "model_3d": "1n4757apf-hero.glb",
      "model_3d_step": "1n4757apf.step",
      "lbr": "1n4757apf.lbr",
      "model_3d_plain": "1n4757apf.glb"
    },
    "distributor_links": {
      "lcsc": "C19190367"
    },
    "distributor_check": {
      "checked_at": "2026-10-27T01:07:23Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "no match"
      },
      "mouser": {
        "pn": null,
        "status": "no match"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "K",
        "type": "passive",
        "description": "Cathode, marked by the cathode band on the DO-41 glass case; the zener (breakdown) side, which is positive relative to the anode in regulation, with 51 V nominal (48.45 to 53.55 V) at IZT = 5 mA for the A-suffix part."
      },
      {
        "number": "2",
        "name": "A",
        "type": "passive",
        "description": "Anode, the lead opposite the cathode band on the DO-41 glass case; forward VF max 1.2 V at IF = 200 mA."
      }
    ],
    "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 gives no pin table or pin numbers for the two-lead axial DO-41 package. It shows only ; The page 3 table lists 1N4757APF with VZnom 51 V, range 48.45 to 53.55 V, at IZT = 5 mA. The datashe"
        ],
        "pages_sent": 5,
        "cost_usd": 0.0761,
        "at": "2026-10-27T01:07:15"
      },
      "datasheet": {
        "url": "https://datasheet.lcsc.com/datasheet/pdf/d8b82e83cce74889cc513a8fe9c21b0b.pdf",
        "pages": 5,
        "sha256": "7a466624e3746c12",
        "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": "1n4757apf.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": 0.0,
        "footprint_binding": "identity",
        "sha256": "c3e23d4b276811b74eecb329bd4480209ad3dbc8cf6e6e3f2a5b542c5ca343c1",
        "checked": "2026-10-27",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}