main
Ray Set visibility: public 5edbaa3 13h ago
{
  "schema_version": 1,
  "type": "component",
  "slug": "kta1666-y-rtf",
  "title": "KTA1666-Y-RTF",
  "brief": "KEC Semicon Bipolar Transistors - BJT, SOT-89. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.1.0",
  "license": "CC-BY-SA-4.0",
  "tags": [
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    "category": "Transistors",
    "subcategory": "Bipolar Transistors - BJT",
    "datasheet": "https://datasheet.lcsc.com/datasheet/pdf/a3b8298512ba4fbc9dfb19017114464c.pdf",
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    "distributor_links": {
      "lcsc": "C108045"
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    "distributor_check": {
      "checked_at": "2026-10-22T21:37:11Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
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        "status": "quota"
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        "name": "BASE",
        "type": "input",
        "description": "Base of the PNP transistor; base current rated up to -0.4A, with VEBO limit of -5V."
      },
      {
        "number": "2",
        "name": "COLLECTOR",
        "type": "passive",
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      },
      {
        "number": "3",
        "name": "EMITTER",
        "type": "passive",
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      }
    ],
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        "guard_notes": [
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        "cost_usd": 0.0373,
        "at": "2026-10-22T21:36:57"
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        "pages": 3,
        "sha256": "a8ec7a1a16e6ee51",
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      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 3,
        "described": 3,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
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        "role": "plain",
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        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
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        "zmin_mm": 0,
        "centre_offset_mm": 0.05,
        "footprint_binding": "identity",
        "sha256": "844c0bb504d0c383535d9845c6376fe7a4053241a2ede8d8ef694df3fcfc37c8",
        "checked": "2026-10-22",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "kta1666-y-rtf-etched.step",
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  "metadata": {
    "specs": {
      "Manufacturer": "KEC Semicon",
      "Package": "SOT-89",
      "Category": "Transistors",
      "Pins": "3"
    },
    "characteristics": {
      "version": 1,
      "source": "datasheet",
      "datasheet_sha256": "a8ec7a1a16e6ee515afeb24136525c87a84dc14c7615ae9b2d027deeb359599a",
      "rows": [
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          "name": "Collector Cut-off Current",
          "symbol": "ICBO",
          "kind": "electrical",
          "unit": "µA",
          "min": null,
          "typ": null,
          "max": -0.1,
          "conditions": "VCB=-50V, IE=0",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Emitter Cut-off Current",
          "symbol": "IEBO",
          "kind": "electrical",
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          "min": null,
          "typ": null,
          "max": -0.1,
          "conditions": "VEB=-5V, IC=0",
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        {
          "name": "Collector-Emitter Breakdown Voltage",
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          "min": -50,
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          "max": null,
          "conditions": "IC=-10mA, IB=0",
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        },
        {
          "name": "DC Current Gain (Y rank)",
          "symbol": "hFE(1)",
          "kind": "electrical",
          "unit": "",
          "min": 120,
          "typ": null,
          "max": 240,
          "conditions": "VCE=-2V, IC=-0.5A (Note 1); Y: 120-240",
          "source_page": 1,
          "source": "datasheet"
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        {
          "name": "DC Current Gain",
          "symbol": "hFE(2)",
          "kind": "electrical",
          "unit": "",
          "min": 40,
          "typ": null,
          "max": null,
          "conditions": "VCE=-2V, IC=-1.5A (Note 1)",
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        {
          "name": "Collector-Emitter Saturation Voltage",
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          "typ": null,
          "max": -0.5,
          "conditions": "IC=-1A, IB=-0.05A (Note 1)",
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        },
        {
          "name": "Base-Emitter Saturation Voltage",
          "symbol": "VBE(sat)",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": -1.2,
          "conditions": "IC=-1A, IB=-0.05A (Note 1)",
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        },
        {
          "name": "Collector-Base Voltage",
          "symbol": "VCBO",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": -50,
          "conditions": "Ta=25°C",
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        {
          "name": "Collector-Emitter Voltage",
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        },
        {
          "name": "Emitter-Base Voltage",
          "symbol": "VEBO",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": -5,
          "conditions": "Ta=25°C",
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        },
        {
          "name": "Collector Current",
          "symbol": "IC",
          "kind": "absolute_maximum",
          "unit": "A",
          "min": null,
          "typ": null,
          "max": -2,
          "conditions": "Ta=25°C",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Base Current",
          "symbol": "IB",
          "kind": "absolute_maximum",
          "unit": "A",
          "min": null,
          "typ": null,
          "max": -0.4,
          "conditions": "Ta=25°C",
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          "source": "datasheet"
        },
        {
          "name": "Collector Power Dissipation",
          "symbol": "PC",
          "kind": "absolute_maximum",
          "unit": "mW",
          "min": null,
          "typ": null,
          "max": 500,
          "conditions": "Ta=25°C",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Collector Power Dissipation, mounted on ceramic substrate",
          "symbol": "PC*",
          "kind": "absolute_maximum",
          "unit": "W",
          "min": null,
          "typ": null,
          "max": 1,
          "conditions": "Mounted on ceramic substrate (250mm2 x0.8t)",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Junction Temperature",
          "symbol": "Tj",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": null,
          "typ": null,
          "max": 150,
          "conditions": "",
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        {
          "name": "Storage Temperature Range",
          "symbol": "Tstg",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": -55,
          "typ": null,
          "max": 150,
          "conditions": "",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Transition Frequency",
          "symbol": "fT",
          "kind": "electrical",
          "unit": "MHz",
          "min": null,
          "typ": 120,
          "max": null,
          "conditions": "VCE=-2V, IC=-0.5A",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Collector Output Capacitance",
          "symbol": "Cob",
          "kind": "electrical",
          "unit": "pF",
          "min": null,
          "typ": 40,
          "max": null,
          "conditions": "VCB=-10V, IE=0, f=1MHz",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Turn-on Time",
          "symbol": "ton",
          "kind": "timing",
          "unit": "µs",
          "min": null,
          "typ": 0.1,
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        {
          "name": "Storage Time",
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          "min": null,
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        {
          "name": "Fall Time",
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          "kind": "timing",
          "unit": "µs",
          "min": null,
          "typ": 0.1,
          "max": null,
          "conditions": "",
          "source_page": 1,
          "source": "datasheet"
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      ]
    }
  },
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  "sections": [
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    "readme",
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    "info"
  ],
  "discovery_triggers": [
    "kta1666-y-rtf"
  ],
  "discovery_pitch": "KTA1666-Y-RTF (KEC Semicon) component page: datasheet pinout, KiCad symbol, footprint and 3D.",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
  },
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  "visibility": {
    "public": true
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}