CDNBS08-SRDA05-4

{
  "slug": "cdnbs08-srda05-4",
  "version": "0.1.0",
  "type": "component",
  "description": "BOURNS ESD Protection Devices, SOIC-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "circuit protection",
    "cdnbs08-srda05-4",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "cdnbs08-srda05-4.kicad_sym",
    "cdnbs08-srda05-4.kicad_mod",
    "cdnbs08-srda05-4.glb",
    "cdnbs08-srda05-4.step",
    "cdnbs08-srda05-4.lbr",
    "docs/hero.png",
    "docs/cdnbs08-srda05-4-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "cdnbs08-srda05-4-hero.glb",
    "cdnbs08-srda05-4-hero.overlay.json",
    "cdnbs08-srda05-4-etched.glb"
  ],
  "component": {
    "mpn": "CDNBS08-SRDA05-4",
    "manufacturer": "BOURNS",
    "package": "SOIC-8",
    "pin_count": 8,
    "category": "Circuit Protection",
    "subcategory": "ESD Protection Devices",
    "datasheet": "https://datasheet.lcsc.com/datasheet/pdf/a099ee66c515e298f2c942d4f1b472be.pdf",
    "parts": {
      "symbol": "cdnbs08-srda05-4.kicad_sym",
      "footprint": "cdnbs08-srda05-4.kicad_mod",
      "model_3d": "cdnbs08-srda05-4-hero.glb",
      "model_3d_plain": "cdnbs08-srda05-4-etched.glb",
      "model_3d_step": "cdnbs08-srda05-4-etched.step",
      "model_3d_step_plain": "cdnbs08-srda05-4.step",
      "lbr": "cdnbs08-srda05-4.lbr"
    },
    "distributor_links": {
      "lcsc": "C1976624",
      "digikey": "CDNBS08-SRDA05-4TR-ND",
      "mouser": "652-CDNBS08-SRDA05-4"
    },
    "distributor_check": {
      "checked_at": "2026-10-29T00:26:12Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "CDNBS08-SRDA05-4TR-ND",
        "status": "found",
        "lifecycle": "Active"
      },
      "mouser": {
        "pn": "652-CDNBS08-SRDA05-4",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "I/O 1",
        "type": "bidirectional",
        "description": "Protected I/O line 1 of the SRDA05-4 steering/TVS array, rated for a working peak voltage VWM of 5.0 V with a minimum breakdown voltage VBR of 6.0 V at 1 mA."
      },
      {
        "number": "2",
        "name": "+VREF",
        "type": "power_in",
        "description": "Reference pin labeled +VREF in the pin function table; the datasheet gives no further function or limits for it."
      },
      {
        "number": "3",
        "name": "+VREF",
        "type": "power_in",
        "description": "Reference pin labeled +VREF in the pin function table; the datasheet gives no further function or limits for it."
      },
      {
        "number": "4",
        "name": "I/O 2",
        "type": "bidirectional",
        "description": "Protected I/O line 2 of the SRDA05-4 steering/TVS array, rated for a working peak voltage VWM of 5.0 V with a maximum capacitance of 15 pF at 0 V, 1 MHz."
      },
      {
        "number": "5",
        "name": "GND",
        "type": "power_in",
        "description": "Ground pin; the datasheet's electrical characteristics measure surge and clamping between pins 8 or 5 and the I/O pins 1, 2, 3, 4, 6 and 7."
      },
      {
        "number": "6",
        "name": "I/O 3",
        "type": "bidirectional",
        "description": "Protected I/O line 3 of the SRDA05-4 steering/TVS array, rated for a working peak voltage VWM of 5.0 V with a maximum leakage current of 1 µA at VWM."
      },
      {
        "number": "7",
        "name": "I/O 4",
        "type": "bidirectional",
        "description": "Protected I/O line 4 of the SRDA05-4 steering/TVS array, rated for ESD protection up to ±30 kV per IEC 61000-4-2 (contact, max)."
      },
      {
        "number": "8",
        "name": "GND",
        "type": "power_in",
        "description": "Ground pin; the datasheet's electrical characteristics measure surge and clamping between pins 8 or 5 and the I/O pins 1, 2, 3, 4, 6 and 7."
      }
    ],
    "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 labels pins 2 and 3 only as +VREF and gives no function, voltage limits, or connection; The per-pin descriptions combine the device-wide SRDA05-4 ratings from the electrical table; the dat; The pinout is given as a text list in the 'Device Pinout' section, and the 8-pin grid drawing (8765 "
        ],
        "pages_sent": 5,
        "cost_usd": 0.038,
        "at": "2026-10-29T00:25:54"
      },
      "datasheet": {
        "url": "https://datasheet.lcsc.com/datasheet/pdf/a099ee66c515e298f2c942d4f1b472be.pdf",
        "pages": 5,
        "sha256": "ed435f17a31db017",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 8,
        "described": 8,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
      {
        "file": "cdnbs08-srda05-4.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          6.0,
          4.9,
          1.75
        ],
        "zmin_mm": -0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "07f46cff378d30e6c27dfd5a03092c795323f86d91c71fc7e743f4f418dc553a",
        "checked": "2026-10-29",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "cdnbs08-srda05-4-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          6.0,
          4.9,
          1.75
        ],
        "zmin_mm": -0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "abed1b6d6ae64e770e6335c749d8df0d39f45792cf1f64d52ee6313b16843da6",
        "checked": "2026-10-29",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ],
    "package_dims": {
      "package_code": "NBS08",
      "source_page": 2,
      "D": {
        "nom_mm": 4.9,
        "range_mm": [
          4.8,
          5.0
        ]
      },
      "E1": {
        "nom_mm": 3.905,
        "range_mm": [
          3.81,
          4.0
        ]
      },
      "E": {
        "nom_mm": 6.0,
        "range_mm": [
          5.8,
          6.2
        ]
      },
      "e": {
        "nom_mm": 1.27,
        "range_mm": [
          null,
          null
        ]
      },
      "A": {
        "nom_mm": 1.55,
        "range_mm": [
          1.35,
          1.75
        ]
      },
      "source": "datasheet package drawing, every number found on its page (extract_pins --task dims)",
      "model_check": {
        "file": "cdnbs08-srda05-4.step",
        "verdict": "PASS",
        "reasons": [
          "height and body within the datasheet's package drawing"
        ],
        "by": "factory/package_fit.py"
      }
    }
  }
}