DF2B7AFS

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  "type": "component",
  "slug": "df2b7afs",
  "title": "DF2B7AFS",
  "brief": "TOSHIBA ESD Protection Devices, SOD-923. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.1.0",
  "license": "CC-BY-SA-4.0",
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  "component": {
    "mpn": "DF2B7AFS",
    "manufacturer": "TOSHIBA",
    "package": "SOD-923",
    "pin_count": 2,
    "category": "Circuit Protection",
    "subcategory": "ESD Protection Devices",
    "datasheet": "https://datasheet.lcsc.com/datasheet/pdf/5e415736da6af53f403195e49e449904.pdf",
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      "lbr": "df2b7afs.lbr"
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    "distributor_links": {
      "lcsc": "C1972965"
    },
    "distributor_check": {
      "checked_at": "2026-10-21T07:50:21Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "no match"
      },
      "mouser": {
        "pn": null,
        "status": "no match"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "Pin 1",
        "type": "bidirectional",
        "description": "Signal/I/O pin of the ESD protection diode, with Pin 2 connected to GND when Pin 1 is used for I/O; working peak reverse voltage VRWM is at most 5.5 V."
      },
      {
        "number": "2",
        "name": "Pin 2",
        "type": "bidirectional",
        "description": "Second protection pin of the ESD diode, to be connected to GND when Pin 1 is used for I/O (and Pin 1 connected to GND when Pin 2 is used for I/O); working peak reverse voltage VRWM is at most 5.5 V."
      }
    ],
    "provenance": {
      "extractor": "extract_pins 0.3",
      "factory_chain": {
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        "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 the pins only as 'Pin 1' and 'Pin 2' in the SOD-923 internal circuit drawing an; Page 6 names the pins only as 'Pin 1' and 'Pin 2' and gives no separate pin-name or ground designati; The datasheet states only one package (SOD-923, 1.0 mm x 0.6 mm) and does not list ordering suffixes"
        ],
        "pages_sent": 8,
        "cost_usd": 0.0301,
        "at": "2026-10-21T07:46:23"
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      "datasheet": {
        "url": "https://datasheet.lcsc.com/datasheet/pdf/5e415736da6af53f403195e49e449904.pdf",
        "pages": 8,
        "sha256": "ed099de969fef827",
        "source_tier": "mfr"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 2,
        "described": 2,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
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      "footprint": "viewers/footprint.html"
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        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          1,
          0.6,
          0.37
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "2ab2eb57942276dc90db0148894bc98e40b6ed97c8a35c3c24e1f40fc146235f",
        "checked": "2026-10-21",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "df2b7afs-etched.step",
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        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "a826f2a5458baf31f28ca8204fa7170e23dd689c64f6b195ab53c9f0314bd7ad",
        "checked": "2026-10-21",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "TOSHIBA",
      "Package": "SOD-923",
      "Category": "Circuit Protection",
      "Pins": "2"
    },
    "characteristics": {
      "version": 1,
      "source": "datasheet",
      "datasheet_sha256": "ed099de969fef82796815eab9147ddaa6edf83e5ee6ec86d2c17eb39ca7a1970",
      "rows": [
        {
          "name": "Working peak reverse voltage",
          "symbol": "VRWM",
          "kind": "recommended_operating",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 5.5,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Total capacitance",
          "symbol": "Ct",
          "kind": "electrical",
          "unit": "pF",
          "min": null,
          "typ": 8.5,
          "max": 10,
          "conditions": "VR = 0 V, f = 1 MHz",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Dynamic resistance",
          "symbol": "RDYN",
          "kind": "electrical",
          "unit": "Ω",
          "min": null,
          "typ": 0.2,
          "max": null,
          "conditions": "TLP: Z0 = 50 Ω, tp = 100 ns, tr = 300 ps, IPP1 = 8 A to IPP2 = 16 A (Note 2)",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Reverse current",
          "symbol": "IR",
          "kind": "electrical",
          "unit": "nA",
          "min": null,
          "typ": null,
          "max": 100,
          "conditions": "VRWM = 5.5 V",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Electrostatic discharge voltage (IEC61000-4-2) (Contact)",
          "symbol": "VESD",
          "kind": "absolute_maximum",
          "unit": "kV",
          "min": -30,
          "typ": null,
          "max": 30,
          "conditions": "IEC61000-4-2 contact (Note 1)",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Electrostatic discharge voltage (IEC61000-4-2) (Air)",
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          "kind": "absolute_maximum",
          "unit": "kV",
          "min": -30,
          "typ": null,
          "max": 30,
          "conditions": "IEC61000-4-2 air (Note 1)",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Peak pulse current",
          "symbol": "IPP",
          "kind": "absolute_maximum",
          "unit": "A",
          "min": null,
          "typ": null,
          "max": 4,
          "conditions": "tp = 8/20 µs (Note 2)",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Junction temperature",
          "symbol": "Tj",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": null,
          "typ": null,
          "max": 150,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Storage temperature",
          "symbol": "Tstg",
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          "unit": "°C",
          "min": -55,
          "typ": null,
          "max": 150,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        }
      ]
    }
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  "discovery_pitch": "DF2B7AFS (TOSHIBA) component page: datasheet pinout, KiCad symbol, footprint and 3D.",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
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}