3.0SMC28A

{
  "slug": "3-0smc28a",
  "version": "0.1.0",
  "type": "component",
  "description": "Littelfuse TVS, DO-214AB(SMCJ). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "tvs-fuse-board level protection",
    "3.0smc28a",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "3-0smc28a.kicad_sym",
    "3-0smc28a.kicad_mod",
    "3-0smc28a.glb",
    "3-0smc28a.step",
    "3-0smc28a.lbr",
    "docs/hero.png",
    "docs/3-0smc28a-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "3-0smc28a-hero.glb",
    "3-0smc28a-hero.overlay.json",
    "3-0smc28a-etched.glb"
  ],
  "component": {
    "mpn": "3.0SMC28A",
    "manufacturer": "Littelfuse",
    "package": "DO-214AB(SMCJ)",
    "pin_count": 2,
    "category": "TVS/Fuse/Board Level Protection",
    "subcategory": "TVS",
    "datasheet": "https://datasheet.lcsc.com/datasheet/pdf/643260fda48a020f4b800fe550efd242.pdf",
    "parts": {
      "symbol": "3-0smc28a.kicad_sym",
      "footprint": "3-0smc28a.kicad_mod",
      "model_3d": "3-0smc28a-hero.glb",
      "model_3d_plain": "3-0smc28a-etched.glb",
      "model_3d_step": "3-0smc28a-etched.step",
      "model_3d_step_plain": "3-0smc28a.step",
      "lbr": "3-0smc28a.lbr"
    },
    "distributor_links": {
      "lcsc": "C3710006",
      "digikey": "18-3.0SMC28ATR-ND",
      "mouser": "576-3.0SMC28A"
    },
    "distributor_check": {
      "checked_at": "2026-10-22T11:05:46Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "18-3.0SMC28ATR-ND",
        "status": "found",
        "lifecycle": "Active"
      },
      "mouser": {
        "pn": "576-3.0SMC28A",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "Cathode",
        "type": "passive",
        "description": "Cathode terminal marked by the color band (positive end) on the unidirectional 3.0SMC28A, with 28.0V reverse standoff voltage and 31.10V to 34.40V breakdown at 1mA."
      },
      {
        "number": "2",
        "name": "Anode",
        "type": "passive",
        "description": "Anode terminal of the unidirectional 3.0SMC28A, which has a maximum clamping voltage of 59V at 470A peak pulse current (8/20µs) and a maximum forward voltage of 3.5V at 100A."
      }
    ],
    "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 for the DO-214AB package. It only shows Cathode and Anode in the ; The datasheet does not state an electrical pin type for these terminals. They are listed as passive,"
        ],
        "pages_sent": 5,
        "cost_usd": 0.0486,
        "at": "2026-10-22T11:04:51"
      },
      "datasheet": {
        "url": "https://datasheet.lcsc.com/datasheet/pdf/643260fda48a020f4b800fe550efd242.pdf",
        "pages": 5,
        "sha256": "d0fac52bc3c1c9a4",
        "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": "3-0smc28a.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          8.0,
          5.9,
          2.31
        ],
        "zmin_mm": -0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "30dab4c2e22239b7e3694a4d45304e04255c6b70a79d28e9c34c6072ba647991",
        "checked": "2026-10-22",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "3-0smc28a-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          8.0,
          5.9,
          2.31
        ],
        "zmin_mm": -0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "7a23f94f02cb460ee2ba80f001011e836fc63d3d2f6424babebd8a46a7b9196f",
        "checked": "2026-10-22",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}