RD51FM

{
  "slug": "rd51fm",
  "version": "0.1.0",
  "type": "component",
  "description": "EIC Semicon Zener Diodes, DO-214AC(SMA). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "diodes",
    "rd51fm",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "rd51fm.kicad_sym",
    "rd51fm.kicad_mod",
    "rd51fm.glb",
    "rd51fm.step",
    "rd51fm.lbr",
    "docs/hero.png",
    "docs/rd51fm-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "rd51fm-hero.glb",
    "rd51fm-hero.overlay.json",
    "rd51fm-etched.glb"
  ],
  "component": {
    "mpn": "RD51FM",
    "manufacturer": "EIC Semicon",
    "package": "DO-214AC(SMA)",
    "pin_count": 2,
    "category": "Diodes",
    "subcategory": "Zener Diodes",
    "datasheet": "https://datasheet.lcsc.com/datasheet/pdf/000981dedc0400ba0374e45e19a9336e.pdf",
    "parts": {
      "symbol": "rd51fm.kicad_sym",
      "footprint": "rd51fm.kicad_mod",
      "model_3d": "rd51fm-hero.glb",
      "model_3d_plain": "rd51fm-etched.glb",
      "model_3d_step": "rd51fm-etched.step",
      "model_3d_step_plain": "rd51fm.step",
      "lbr": "rd51fm.lbr"
    },
    "distributor_links": {
      "lcsc": "C3015372"
    },
    "distributor_check": {
      "checked_at": "2026-10-22T01:48:08Z",
      "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, the end marked by the color band; the Zener voltage for RD51FM is 48.0 to 54.0 V at IZ = 2 mA."
      },
      {
        "number": "2",
        "name": "A",
        "type": "passive",
        "description": "Anode, the end without the color band; forward current is rated up to 200 mA (IF) and power dissipation 1.0 W."
      }
    ],
    "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 numbers or pin table. It says only 'Color band denotes cathode end'. The ; The datasheet lists RD51FM as the 51 V Zener type (VZ 48.0-54.0 V at 2 mA), in the SMA (DO-214AC) pa"
        ],
        "pages_sent": 6,
        "cost_usd": 0.045,
        "at": "2026-10-22T01:46:44"
      },
      "datasheet": {
        "url": "https://datasheet.lcsc.com/datasheet/pdf/000981dedc0400ba0374e45e19a9336e.pdf",
        "pages": 6,
        "sha256": "d3f59ae4ba2ad9ba",
        "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": "rd51fm.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          5.0,
          2.7,
          2.22
        ],
        "zmin_mm": -0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "1cfddd4e3b1bf22b8fc6ee3258c2aade882ed7b85b528e23b9db42437775a1db",
        "checked": "2026-10-22",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "rd51fm-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          5.0,
          2.7,
          2.22
        ],
        "zmin_mm": -0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "ceafba82b3e1588cdf8565edbc6d44f0a128a1ccace85400f7f0bbe24c559de3",
        "checked": "2026-10-22",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}