SMBJ51CD-M3

{
  "slug": "smbj51cd-m3",
  "version": "0.1.0",
  "type": "component",
  "description": "Vishay Intertech TVS, SMB(DO-214AA). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "circuit protection",
    "smbj51cd-m3",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "smbj51cd-m3.kicad_sym",
    "smbj51cd-m3.kicad_mod",
    "smbj51cd-m3.glb",
    "smbj51cd-m3.step",
    "smbj51cd-m3.lbr",
    "docs/hero.png",
    "docs/smbj51cd-m3-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "smbj51cd-m3-hero.glb",
    "smbj51cd-m3-hero.overlay.json",
    "smbj51cd-m3-etched.glb"
  ],
  "component": {
    "mpn": "SMBJ51CD-M3",
    "manufacturer": "Vishay Intertech",
    "package": "SMB(DO-214AA)",
    "pin_count": 2,
    "category": "Circuit Protection",
    "subcategory": "TVS",
    "datasheet": "https://datasheet.lcsc.com/datasheet/pdf/db44ec316a4d70e741b41bfb69eea28b.pdf",
    "parts": {
      "symbol": "smbj51cd-m3.kicad_sym",
      "footprint": "smbj51cd-m3.kicad_mod",
      "model_3d": "smbj51cd-m3-hero.glb",
      "model_3d_plain": "smbj51cd-m3-etched.glb",
      "model_3d_step": "smbj51cd-m3-etched.step",
      "model_3d_step_plain": "smbj51cd-m3.step",
      "lbr": "smbj51cd-m3.lbr"
    },
    "distributor_links": {
      "lcsc": "C1973984"
    },
    "distributor_check": {
      "checked_at": "2026-10-31T12:42:28Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "no match"
      },
      "mouser": {
        "pn": null,
        "status": "no match"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "A1",
        "type": "passive",
        "description": "Bidirectional TVS terminal 1 with no cathode band; electrical characteristics apply in both directions (VWM 51 V, VBR 57.6 V to 61.8 V at 1.0 mA, VC 81.2 V at IPPM 7.40 A)."
      },
      {
        "number": "2",
        "name": "A2",
        "type": "passive",
        "description": "Bidirectional TVS terminal 2 with no cathode band; interchangeable with terminal 1 and rated 600 W peak pulse power (10/1000 μs)."
      }
    ],
    "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 does not print pin numbers or names for the SMB package. It shows two terminals and st; The datasheet lists the bidirectional part as SMBJ51CD. The -M3 suffix is explained as halogen-free,"
        ],
        "pages_sent": 5,
        "cost_usd": 0.1328,
        "at": "2026-10-31T12:42:17"
      },
      "datasheet": {
        "url": "https://datasheet.lcsc.com/datasheet/pdf/db44ec316a4d70e741b41bfb69eea28b.pdf",
        "pages": 5,
        "sha256": "c1e92b4c130e4dc1",
        "source_tier": "mfr"
      },
      "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": "smbj51cd-m3.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          5.3,
          3.55,
          2.15
        ],
        "zmin_mm": -0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "029466277d91e9f5492556be93e46611049e07115c7913880c547afa96058ed4",
        "checked": "2026-10-31",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "smbj51cd-m3-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          5.3,
          3.55,
          2.15
        ],
        "zmin_mm": -0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "2224e87c6179b5be6d8ea1e71575625d05a4c6ee4a3f08c13a492102b04b82a3",
        "checked": "2026-10-31",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ],
    "package_dims": {
      "package_code": "SMB (DO-214AA)",
      "source_page": 4,
      "D": {
        "nom_mm": 4.318,
        "range_mm": [
          4.064,
          4.572
        ]
      },
      "E1": {
        "nom_mm": 3.62,
        "range_mm": [
          3.302,
          3.937
        ]
      },
      "E": {
        "nom_mm": 5.397,
        "range_mm": [
          5.207,
          5.588
        ]
      },
      "A": {
        "nom_mm": 2.286,
        "range_mm": [
          2.134,
          2.438
        ]
      },
      "source": "datasheet package drawing, every number found on its page (extract_pins --task dims)",
      "model_check": {
        "file": "smbj51cd-m3.step",
        "verdict": "PASS",
        "reasons": [
          "height and body within the datasheet's package drawing"
        ],
        "by": "factory/package_fit.py"
      }
    }
  }
}