main
Ray Set visibility: public a377c96 4d ago
{
  "schema_version": 1,
  "type": "component",
  "slug": "2sa1012",
  "title": "2SA1012",
  "brief": "Changjing Bipolar (BJT), TO-220-3L. 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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  "component": {
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    "manufacturer": "Changjing",
    "package": "TO-220-3L",
    "pin_count": 3,
    "category": "Transistors/Thyristors",
    "subcategory": "Bipolar (BJT)",
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      "lbr": "2sa1012.lbr"
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    "distributor_links": {
      "lcsc": "C47089365"
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    "distributor_check": {
      "checked_at": "2026-10-20T17:57:09Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "no match"
      },
      "mouser": {
        "pn": null,
        "status": "no match"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "BASE",
        "type": "passive",
        "description": "Base terminal of the PNP transistor; the emitter-base voltage is limited to -5 V (VEBO), and the base-emitter saturation voltage is specified at IC=-3A, IB=-150mA."
      },
      {
        "number": "2",
        "name": "COLLECTOR",
        "type": "passive",
        "description": "Collector terminal of the PNP transistor, rated for -60 V collector-base (VCBO), -50 V collector-emitter (VCEO), and -5 A continuous collector current (IC), with 2 W collector power dissipation (PC)."
      },
      {
        "number": "3",
        "name": "EMITTER",
        "type": "passive",
        "description": "Emitter terminal of the PNP transistor, with the emitter-base voltage limited to -5 V (VEBO)."
      }
    ],
    "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 pin assignment is taken from the printed text listing (1. BASE, 2. COLLECTOR, 3. EMITTER) on pag; The datasheet gives the TO-220-3L package outline dimensions on page 4 but no pin-spacing or pin-pos"
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        "pages_sent": 4,
        "cost_usd": 0.0178,
        "at": "2026-10-20T17:55:27"
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        "pages": 4,
        "sha256": "8061a219830d7054",
        "source_tier": "lcsc"
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      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 3,
        "described": 3,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
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      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
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        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "body on z = 0, through-hole leads below",
        "extents_mm": [
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          28.525
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        "zmin_mm": -9.75,
        "centre_offset_mm": 0.932,
        "footprint_binding": "identity",
        "sha256": "7cb065d935df5771f0ba6e48ddd180863a121af76483dad7f18e667a7b68204a",
        "checked": "2026-10-20",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
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        "extents_mm": [
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        "sha256": "4a2203c3f660d94a5156f68c50e260b06708f0e498abb98a50cd191529bdc41c",
        "checked": "2026-10-20",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
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  },
  "metadata": {
    "specs": {
      "Manufacturer": "Changjing",
      "Package": "TO-220-3L",
      "Category": "Transistors/Thyristors",
      "Pins": "3"
    },
    "characteristics": {
      "version": 1,
      "source": "datasheet",
      "datasheet_sha256": "8061a219830d7054c4bc29cd4c985eb94d03cccd33c21eeb90596c4cffb49c52",
      "rows": [
        {
          "name": "Collector-base breakdown voltage",
          "symbol": "V(BR)CBO",
          "kind": "electrical",
          "unit": "V",
          "min": -60,
          "typ": null,
          "max": null,
          "conditions": "IC=-0.1mA, IE=0",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Collector-emitter breakdown voltage",
          "symbol": "V(BR)CEO",
          "kind": "electrical",
          "unit": "V",
          "min": -50,
          "typ": null,
          "max": null,
          "conditions": "IC=-10mA, IB=0",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Emitter-base breakdown voltage",
          "symbol": "V(BR)EBO",
          "kind": "electrical",
          "unit": "V",
          "min": -5,
          "typ": null,
          "max": null,
          "conditions": "IE=-100μA, IC=0",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Collector cut-off current",
          "symbol": "ICBO",
          "kind": "electrical",
          "unit": "μA",
          "min": null,
          "typ": null,
          "max": -1,
          "conditions": "VCB=-50V, IE=0",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Emitter cut-off current",
          "symbol": "IEBO",
          "kind": "electrical",
          "unit": "μA",
          "min": null,
          "typ": null,
          "max": -1,
          "conditions": "VEB=-5V, IC=0",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "DC current gain hFE(1) (rank O 70-140, Y 120-240)",
          "symbol": "hFE(1)",
          "kind": "electrical",
          "unit": "",
          "min": 70,
          "typ": null,
          "max": 240,
          "conditions": "VCE=-1V, IC=-1A",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "DC current gain",
          "symbol": "hFE(2)",
          "kind": "electrical",
          "unit": "",
          "min": 30,
          "typ": null,
          "max": null,
          "conditions": "VCE=-1V, IC=-3A; pulse test tp≤300μs, δ≤0.02",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Collector-emitter saturation voltage",
          "symbol": "VCE(sat)",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": -0.4,
          "conditions": "IC=-3A, IB=-150mA; pulse test tp≤300μs, δ≤0.02",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Base-emitter saturation voltage",
          "symbol": "VBE(sat)",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": -1.2,
          "conditions": "IC=-3A, IB=-150mA; pulse test tp≤300μs, δ≤0.02",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Transition frequency",
          "symbol": "fT",
          "kind": "electrical",
          "unit": "MHz",
          "min": 60,
          "typ": null,
          "max": null,
          "conditions": "VCE=-4V, IC=-1A",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Collector output capacitance",
          "symbol": "Cob",
          "kind": "electrical",
          "unit": "pF",
          "min": null,
          "typ": null,
          "max": 170,
          "conditions": "VCB=-10V, IE=0, f=1MHz",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Turn-on time",
          "symbol": "ton",
          "kind": "timing",
          "unit": "μs",
          "min": null,
          "typ": 0.1,
          "max": null,
          "conditions": "VCC=-30V, IC=-3A, IB1=-IB2=-0.15A",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Storage time",
          "symbol": "ts",
          "kind": "timing",
          "unit": "μs",
          "min": null,
          "typ": 1,
          "max": null,
          "conditions": "VCC=-30V, IC=-3A, IB1=-IB2=-0.15A",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Fall time",
          "symbol": "tf",
          "kind": "timing",
          "unit": "μs",
          "min": null,
          "typ": 0.1,
          "max": null,
          "conditions": "VCC=-30V, IC=-3A, IB1=-IB2=-0.15A",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Collector-base voltage",
          "symbol": "VCBO",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -60,
          "typ": null,
          "max": null,
          "conditions": "Ta=25℃",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Collector-emitter voltage",
          "symbol": "VCEO",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -50,
          "typ": null,
          "max": null,
          "conditions": "Ta=25℃",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Emitter-base voltage",
          "symbol": "VEBO",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -5,
          "typ": null,
          "max": null,
          "conditions": "Ta=25℃",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Collector current (continuous)",
          "symbol": "IC",
          "kind": "absolute_maximum",
          "unit": "A",
          "min": -5,
          "typ": null,
          "max": null,
          "conditions": "Ta=25℃",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Collector power dissipation",
          "symbol": "PC",
          "kind": "absolute_maximum",
          "unit": "W",
          "min": null,
          "typ": null,
          "max": 2,
          "conditions": "Ta=25℃",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Operating junction and storage temperature range",
          "symbol": "TJ,Tstg",
          "kind": "absolute_maximum",
          "unit": "℃",
          "min": -55,
          "typ": null,
          "max": 150,
          "conditions": "",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Thermal resistance junction to ambient",
          "symbol": "RθJA",
          "kind": "thermal",
          "unit": "℃/W",
          "min": null,
          "typ": null,
          "max": 62.5,
          "conditions": "",
          "source_page": 1,
          "source": "datasheet"
        }
      ]
    }
  },
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  "sections": [
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    "viewers",
    "readme",
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  "discovery_triggers": [
    "2sa1012"
  ],
  "discovery_pitch": "2SA1012 (Changjing) component page: datasheet pinout, KiCad symbol, footprint and 3D.",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
  },
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  "visibility": {
    "public": true
  }
}