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Ray Set visibility: public d430eb3 6d ago
{
  "schema_version": 1,
  "type": "component",
  "slug": "2sd1758",
  "title": "2SD1758",
  "brief": "Changjing Bipolar (BJT), TO-252-2L. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.1.0",
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    "package": "TO-252-2L",
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    "subcategory": "Bipolar (BJT)",
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      "lbr": "2sd1758.lbr"
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    "distributor_links": {
      "lcsc": "C2910340"
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    "distributor_check": {
      "checked_at": "2026-10-18T21:45:53Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
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        "status": "quota"
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      "mouser": {
        "pn": null,
        "status": "quota"
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        "type": "input",
        "description": "Base terminal of the NPN transistor; the datasheet gives no pin-specific limit, and the device emitter-base voltage VEBO is 5 V."
      },
      {
        "number": "2",
        "name": "COLLECTOR",
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        "description": "Collector terminal of the NPN transistor, rated VCBO 40 V, VCEO 32 V, continuous collector current IC 2 A, and collector dissipation PC 1.2 W."
      },
      {
        "number": "3",
        "name": "EMITTER",
        "type": "passive",
        "description": "Emitter terminal of the NPN transistor; the datasheet gives no pin-specific limit, and the device emitter-base voltage VEBO is 5 V."
      }
    ],
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      "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 package is labeled TO-252-2L but the datasheet lists three numbered leads (1 BASE, 2 COLLECTOR, ; The datasheet gives no pin-specific electrical limits for BASE or EMITTER; the descriptions cite dev"
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        "cost_usd": 0.0221,
        "at": "2026-10-18T21:43:44"
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        "pages": 4,
        "sha256": "8956694ab9eb6b80",
        "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
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        "units": "mm",
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        "centre_offset_mm": 0,
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        "sha256": "3eb4c99603a4fe837c2fe9308bc174769ded87a785a0df48d2dc441432ee8b4c",
        "checked": "2026-10-18",
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        "checked": "2026-10-18",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
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  "metadata": {
    "specs": {
      "Manufacturer": "Changjing",
      "Package": "TO-252-2L",
      "Category": "Transistors/Thyristors",
      "Pins": "3"
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    "characteristics": {
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      "rows": [
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          "name": "Collector-base breakdown voltage",
          "symbol": "V(BR)CBO",
          "kind": "electrical",
          "unit": "V",
          "min": 40,
          "typ": null,
          "max": null,
          "conditions": "IC=50μA, IE=0",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Collector-emitter breakdown voltage",
          "symbol": "V(BR)CEO",
          "kind": "electrical",
          "unit": "V",
          "min": 32,
          "typ": null,
          "max": null,
          "conditions": "IC=1mA, IB=0",
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          "name": "Emitter-base breakdown voltage",
          "symbol": "V(BR)EBO",
          "kind": "electrical",
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          "typ": null,
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          "conditions": "IE=50μA, IC=0",
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        {
          "name": "Collector cut-off current",
          "symbol": "ICBO",
          "kind": "electrical",
          "unit": "μA",
          "min": null,
          "typ": null,
          "max": 1,
          "conditions": "VCB=20V, 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=4V, IC=0",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "DC current gain",
          "symbol": "hFE",
          "kind": "electrical",
          "unit": "",
          "min": 82,
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          "source_page": 2,
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        {
          "name": "Collector-emitter saturation voltage",
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          "kind": "electrical",
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          "min": null,
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          "max": 0.8,
          "conditions": "IC=2A, IB=0.2A",
          "source_page": 2,
          "source": "datasheet"
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        {
          "name": "Transition frequency",
          "symbol": "fT",
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          "unit": "MHz",
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          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Collector output capacitance",
          "symbol": "Cob",
          "kind": "electrical",
          "unit": "pF",
          "min": null,
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          "source_page": 1,
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          "kind": "absolute_maximum",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 32,
          "conditions": "",
          "source_page": 1,
          "source": "datasheet"
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        {
          "name": "Emitter-base voltage",
          "symbol": "VEBO",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 5,
          "conditions": "",
          "source_page": 1,
          "source": "datasheet"
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        {
          "name": "Collector current, continuous",
          "symbol": "IC",
          "kind": "absolute_maximum",
          "unit": "A",
          "min": null,
          "typ": null,
          "max": 2,
          "conditions": "",
          "source_page": 1,
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        },
        {
          "name": "Collector dissipation",
          "symbol": "PC",
          "kind": "absolute_maximum",
          "unit": "W",
          "min": null,
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          "conditions": "",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Operation junction and storage temperature range",
          "symbol": "TJ,Tstg",
          "kind": "absolute_maximum",
          "unit": "℃",
          "min": -55,
          "typ": null,
          "max": 150,
          "conditions": "",
          "source_page": 1,
          "source": "datasheet"
        }
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  "discovery_triggers": [
    "2sd1758"
  ],
  "discovery_pitch": "2SD1758 (Changjing) component page: datasheet pinout, KiCad symbol, footprint and 3D.",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
  },
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}