main
Ray Set visibility: public 95a9cba
{
  "schema_version": 1,
  "type": "component",
  "slug": "ddtb122tc-7-f",
  "title": "DDTB122TC-7-F",
  "brief": "Diodes Incorporated Digital Transistors, SOT-23. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.1.0",
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  "component": {
    "mpn": "DDTB122TC-7-F",
    "manufacturer": "Diodes Incorporated",
    "package": "SOT-23",
    "pin_count": 3,
    "category": "Transistors",
    "subcategory": "Digital Transistors",
    "datasheet": "https://www.diodes.com/assets/Datasheets/DDTB122TC-7-F.pdf",
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      "lbr": "ddtb122tc-7-f.lbr"
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      "digikey": "DDTB122TC-FDITR-ND",
      "mouser": "621-DDTB122TC-7-F"
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    "distributor_check": {
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      "source": "Component Ocean /api/assign-pns",
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        "status": "found"
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        "name": "IN",
        "type": "input",
        "description": "Input (base, B) through built-in series resistor R1 of 0.22 kΩ nominal (R2 open on DDTB122TC); the emitter-to-base voltage (2) to (1) is limited to -5 V max (VEBO)."
      },
      {
        "number": "2",
        "name": "GND(+)",
        "type": "power_in",
        "description": "Ground/positive reference (emitter, E) of the PNP transistor, the reference for the -50 V supply voltage (3) to (2) and for the input voltage."
      },
      {
        "number": "3",
        "name": "OUT",
        "type": "output",
        "description": "Output (collector, C) rated for a maximum supply voltage VCC of -50 V (3) to (2) and a maximum output current IC of -500 mA."
      }
    ],
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        "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: Pin numbers are inferred from the schematic text and the ratings notation ((1)=input, (2)=GND, (3)=s; The datasheet does not give a KiCad electrical type for the collector pin. OUT was classed as output"
        ],
        "pages_sent": 3,
        "cost_usd": 0.024,
        "at": "2026-11-13T02:51:25"
      },
      "datasheet": {
        "url": "https://www.diodes.com/assets/Datasheets/DDTB122TC-7-F.pdf",
        "pages": 3,
        "sha256": "f43085bd72dfc95f",
        "source_tier": "mfr"
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      "model_3d_generated": {
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        "family": "SOT",
        "height_mm": 1.0015,
        "height_basis": "datasheet A, midpoint of min and max",
        "standoff_mm": 0.05,
        "standoff_basis": "family nominal (no datasheet A1 read)",
        "lead_width_mm": 0.36,
        "lead_width_basis": "default: 0.6 x pad width across the lead, at most 0.45 x pitch 1.90 mm; a tab 0.9 x its width (no datasheet b read)",
        "lead_thickness_mm": 0.2,
        "lead_thickness_basis": "default for pitch 1.90 mm, height 1.0015 mm (no datasheet c read)"
      },
      "pins": {
        "total": 3,
        "described": 3,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
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      "footprint": "viewers/footprint.html"
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        "units": "mm",
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        "seat": "z = 0",
        "extents_mm": [
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        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "2a24941d827df079a755c2aabf7d1a541c5c7529a82cfbcdf6f2b64c66393807",
        "checked": "2026-11-13",
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      },
      {
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        "role": "eda",
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        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
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        "checked": "2026-11-13",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ],
    "package_dims": {
      "package_code": "SOT-23",
      "source_page": 1,
      "D": {
        "nom_mm": 2.9,
        "range_mm": [
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          3
        ]
      },
      "E1": {
        "nom_mm": 1.3,
        "range_mm": [
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        ]
      },
      "E": {
        "nom_mm": 2.4,
        "range_mm": [
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        ]
      },
      "e": {
        "nom_mm": 0.96,
        "range_mm": [
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        ]
      },
      "A": {
        "nom_mm": 1.002,
        "range_mm": [
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          1.1
        ]
      },
      "source": "datasheet package drawing, every number found on its page (extract_pins --task dims)",
      "model_check": {
        "file": "ddtb122tc-7-f.step",
        "verdict": "PASS",
        "reasons": [
          "height and body within the datasheet's package drawing"
        ],
        "by": "factory/package_fit.py"
      }
    }
  },
  "metadata": {
    "specs": {
      "Manufacturer": "Diodes Incorporated",
      "Package": "SOT-23",
      "Category": "Transistors",
      "Pins": "3"
    },
    "appearance": {
      "contacts": {
        "quote": "• Terminals: Solderable per MIL-STD-202, Method 208 • Lead Free Plating (Matte Tin Finish annealed over Alloy",
        "page": 1,
        "doc": "ds.pdf",
        "plating": "tin"
      },
      "version": 1,
      "datasheet_sha256": "f43085bd72dfc95f765f56c067d2fd9799683918bf218609814453697ce27f1b"
    },
    "characteristics": {
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      "datasheet_sha256": "f43085bd72dfc95f765f56c067d2fd9799683918bf218609814453697ce27f1b",
      "rows": [
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          "name": "Collector-Base Breakdown Voltage",
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          "kind": "electrical",
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          "conditions": "IC = -50μA",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Collector-Emitter Breakdown Voltage",
          "symbol": "BVCEO",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": -40,
          "conditions": "IC = -1mA",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Emitter-Base Breakdown Voltage",
          "symbol": "BVEBO",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": -5,
          "conditions": "IE = -50μA",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Collector Cutoff Current",
          "symbol": "ICBO",
          "kind": "electrical",
          "unit": "μA",
          "min": null,
          "typ": null,
          "max": -0.5,
          "conditions": "VCB = -50V",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Emitter Cutoff Current",
          "symbol": "IEBO",
          "kind": "electrical",
          "unit": "μA",
          "min": null,
          "typ": null,
          "max": -0.5,
          "conditions": "VEB = -4V",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Collector-Emitter Saturation Voltage",
          "symbol": "VCE(sat)",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": -0.3,
          "conditions": "IC = -50mA, IB = -2.5mA",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "DC Current Transfer Ratio",
          "symbol": "hFE",
          "kind": "electrical",
          "unit": "",
          "min": 100,
          "typ": 250,
          "max": 600,
          "conditions": "IC = -5mA, VCE = -5V",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Gain-Bandwidth Product",
          "symbol": "fT",
          "kind": "electrical",
          "unit": "MHz",
          "min": null,
          "typ": 200,
          "max": null,
          "conditions": "VCE = -10V, IE = 5mA, f = 100MHz",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Supply Voltage, (3) to (2)",
          "symbol": "VCC",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -50,
          "typ": null,
          "max": null,
          "conditions": "TA = 25°C",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Input Voltage, (2) to (1)",
          "symbol": "VEBO (MAX)",
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          "unit": "V",
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          "conditions": "TA = 25°C",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Output Current",
          "symbol": "IC",
          "kind": "absolute_maximum",
          "unit": "mA",
          "min": -500,
          "typ": null,
          "max": null,
          "conditions": "TA = 25°C",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Power Dissipation",
          "symbol": "PD",
          "kind": "absolute_maximum",
          "unit": "mW",
          "min": null,
          "typ": null,
          "max": 200,
          "conditions": "Mounted on FR4 PC Board, TA = 25°C",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Thermal Resistance, Junction to Ambient Air",
          "symbol": "RθJA",
          "kind": "thermal",
          "unit": "°C/W",
          "min": null,
          "typ": 625,
          "max": null,
          "conditions": "Mounted on FR4 PC Board with recommended pad layout",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Operating and Storage Temperature Range",
          "symbol": "TJ, TSTG",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": -55,
          "typ": null,
          "max": 150,
          "conditions": "",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Input Resistor R1 (nominal)",
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          "kind": "electrical",
          "unit": "KΩ",
          "min": null,
          "typ": 0.22,
          "max": null,
          "conditions": "NOM; R2 open",
          "source_page": 1,
          "source": "datasheet"
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      ]
    }
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  "discovery_triggers": [
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  "discovery_pitch": "DDTB122TC-7-F (Diodes Incorporated) component page: datasheet pinout, KiCad symbol, footprint and 3D.",
  "author": {
    "name": "Ray"
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