ESDARF02-1BU2CK

{
  "slug": "esdarf02-1bu2ck",
  "version": "0.2.1",
  "type": "component",
  "description": "STMicroelectronics ESD And Surge Protection (TVS/ESD), 0201. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "circuit protection",
    "esdarf02-1bu2ck",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "esdarf02-1bu2ck.kicad_sym",
    "esdarf02-1bu2ck.kicad_mod",
    "esdarf02-1bu2ck.glb",
    "esdarf02-1bu2ck.step",
    "esdarf02-1bu2ck.lbr",
    "docs/hero.png",
    "docs/esdarf02-1bu2ck-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "esdarf02-1bu2ck-hero.glb",
    "esdarf02-1bu2ck-hero.overlay.json",
    "esdarf02-1bu2ck-etched.glb"
  ],
  "component": {
    "mpn": "ESDARF02-1BU2CK",
    "manufacturer": "STMicroelectronics",
    "package": "0201",
    "pin_count": 2,
    "category": "Circuit Protection",
    "subcategory": "ESD And Surge Protection (TVS/ESD)",
    "datasheet": "https://www.st.com/resource/en/datasheet/esdarf02-1bu2ck.pdf",
    "parts": {
      "symbol": "esdarf02-1bu2ck.kicad_sym",
      "footprint": "esdarf02-1bu2ck.kicad_mod",
      "model_3d": "esdarf02-1bu2ck-hero.glb",
      "model_3d_plain": "esdarf02-1bu2ck-etched.glb",
      "model_3d_step": "esdarf02-1bu2ck-etched.step",
      "model_3d_step_plain": "esdarf02-1bu2ck.step",
      "lbr": "esdarf02-1bu2ck.lbr"
    },
    "distributor_links": {
      "lcsc": "C672369",
      "digikey": "497-16252-2-ND",
      "mouser": "511-ESDARF02-1BU2CK"
    },
    "distributor_check": {
      "checked_at": "2026-10-28T19:09:42Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "497-16252-2-ND",
        "status": "found"
      },
      "mouser": {
        "pn": "511-ESDARF02-1BU2CK",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "Pin 1",
        "type": "passive",
        "description": "Pin 1 is the bar-marked terminal of the bidirectional single-line TVS and is rated for a reverse stand-off voltage VRM of 3.6 V with 5 V minimum breakdown voltage VBR (IR = 1 mA), with the datasheet giving no separate function for this pin."
      },
      {
        "number": "2",
        "name": "2",
        "type": "passive",
        "description": "Pin 2 is the other terminal of the bidirectional single-line TVS, and the datasheet gives no separate function or limit for it beyond the device ratings (IEC 61000-4-2 contact discharge 8 kV, air discharge 20 kV peak pulse voltage)."
      }
    ],
    "provenance": {
      "extractor": "extract_pins 0.3",
      "factory_chain": {
        "factory": "2.0.0",
        "extractor": "extract_pins 0.3",
        "primary_model": "claude-haiku-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 contain a pin table or name the terminals. Pin 1 is identified by the bar mar; The schema has no separate pin-level electrical limits, so the ratings quoted in the descriptions ar"
        ],
        "pages_sent": 9,
        "cost_usd": 0.0296,
        "at": "2026-10-28T19:09:32"
      },
      "datasheet": {
        "url": "https://www.st.com/resource/en/datasheet/esdarf02-1bu2ck.pdf",
        "pages": 9,
        "sha256": "4dd7867a18d24535",
        "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": "esdarf02-1bu2ck.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          0.62,
          0.32,
          0.3
        ],
        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "a96513077174a19c0fc38c68b9aae318a8f63ddb4d7c6c208838ecbbfd5e16eb",
        "checked": "2026-10-28",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "esdarf02-1bu2ck-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          0.62,
          0.32,
          0.3
        ],
        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "b9e2b4c9e748b653ae3d7fafb2ae38de2fe3f9d98ed135cbbb1f90fc0c28fbd8",
        "checked": "2026-10-28",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ],
    "package_dims": {
      "package_code": "ST0201",
      "source_page": 4,
      "D": {
        "nom_mm": 0.6,
        "range_mm": [
          0.55,
          0.65
        ]
      },
      "E1": {
        "nom_mm": 0.3,
        "range_mm": [
          0.25,
          0.35
        ]
      },
      "e": {
        "nom_mm": 0.35,
        "range_mm": [
          null,
          null
        ]
      },
      "A": {
        "nom_mm": 0.28,
        "range_mm": [
          0.23,
          0.33
        ]
      },
      "source": "datasheet package drawing, every number found on its page (extract_pins --task dims)",
      "model_check": {
        "file": "esdarf02-1bu2ck.step",
        "verdict": "PASS",
        "reasons": [
          "height within the datasheet's package drawing"
        ],
        "by": "factory/package_fit.py"
      }
    }
  }
}