ZMM55C51

{
  "slug": "zmm55c51",
  "version": "0.1.0",
  "type": "component",
  "description": "FUXINSEMI Zener Diodes, LL-34. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "diodes",
    "zmm55c51",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "zmm55c51.kicad_sym",
    "zmm55c51.kicad_mod",
    "zmm55c51.glb",
    "zmm55c51.step",
    "zmm55c51.lbr",
    "docs/hero.png",
    "docs/zmm55c51-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "zmm55c51-hero.glb",
    "zmm55c51-hero.overlay.json"
  ],
  "component": {
    "mpn": "ZMM55C51",
    "manufacturer": "FUXINSEMI",
    "package": "LL-34",
    "pin_count": 2,
    "category": "Diodes",
    "subcategory": "Zener Diodes",
    "datasheet": "https://datasheet.lcsc.com/datasheet/pdf/f26bca686844d10c06de490323cf8a30.pdf",
    "parts": {
      "symbol": "zmm55c51.kicad_sym",
      "footprint": "zmm55c51.kicad_mod",
      "model_3d": "zmm55c51-hero.glb",
      "model_3d_step": "zmm55c51.step",
      "lbr": "zmm55c51.lbr",
      "model_3d_plain": "zmm55c51.glb"
    },
    "distributor_links": {
      "lcsc": "C19631985"
    },
    "distributor_check": {
      "checked_at": "2026-10-22T18:16:00Z",
      "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, marked by the color band on the LL-34/SOD-80 body, which indicates negative polarity."
      },
      {
        "number": "2",
        "name": "A",
        "type": "passive",
        "description": "Anode terminal of the zener diode, the end opposite the cathode color band."
      }
    ],
    "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 text gives no pin table or numbered pins; pin numbers 1/2 are assigned by convention (1=ca; Tables for the ZMM55C51 electrical characteristics (page 2-3) were not present in the extracted text"
        ],
        "pages_sent": 4,
        "cost_usd": 0.0241,
        "at": "2026-10-22T18:15:50"
      },
      "datasheet": {
        "url": "https://datasheet.lcsc.com/datasheet/pdf/f26bca686844d10c06de490323cf8a30.pdf",
        "pages": 4,
        "sha256": "5d3d79fdfa5a1cac",
        "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": "zmm55c51.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          3.6,
          1.4,
          1.4
        ],
        "zmin_mm": -0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "bab3a3356a14efb0438caca9adf53472dea34425715606e933f092f87f73f650",
        "checked": "2026-10-22",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}