main
Ray Set visibility: public e29865b 5d ago
{
  "schema_version": 1,
  "type": "component",
  "slug": "2sb5540sq",
  "title": "2SB5540SQ",
  "brief": "PJSEMI Bipolar (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": [
    "component",
    "transistors-thyristors",
    "2sb5540sq",
    "factory-2.0.0",
    "extractor-text"
  ],
  "component": {
    "mpn": "2SB5540SQ",
    "manufacturer": "PJSEMI",
    "package": "SOT-89",
    "pin_count": 3,
    "category": "Transistors/Thyristors",
    "subcategory": "Bipolar (BJT)",
    "datasheet": "https://datasheet.lcsc.com/datasheet/pdf/9c2aa7446b8ddb18d9e2590cc8674251.pdf",
    "parts": {
      "symbol": "2sb5540sq.kicad_sym",
      "footprint": "2sb5540sq.kicad_mod",
      "model_3d": "2sb5540sq-hero.glb",
      "model_3d_plain": "2sb5540sq-etched.glb",
      "model_3d_step": "2sb5540sq-etched.step",
      "model_3d_step_plain": "2sb5540sq.step",
      "lbr": "2sb5540sq.lbr"
    },
    "distributor_links": {
      "lcsc": "C42431782"
    },
    "distributor_check": {
      "checked_at": "2026-10-20T10:19:24Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "no match"
      },
      "mouser": {
        "pn": null,
        "status": "no match"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "Base",
        "type": "input",
        "description": "Base terminal of the 2SB5540SQ PNP transistor, with emitter-base voltage rated at -VEBO 6 V maximum and emitter-base cutoff current specified at VEB = -4 V."
      },
      {
        "number": "2",
        "name": "Collector",
        "type": "passive",
        "description": "Collector terminal of the PNP transistor, rated for -VCBO 40 V and -VCEO 40 V, with continuous collector current -IC 3 A and pulsed collector current -ICP 5 A."
      },
      {
        "number": "3",
        "name": "Emitter",
        "type": "passive",
        "description": "Emitter terminal of the PNP transistor, referenced by the emitter-base breakdown voltage -V(BR)EBO of 6 V minimum at IE = -100 μA."
      }
    ],
    "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 SOT-89 pinout (1 Base, 2 Collector, 3 Emitter) is stated on the datasheet front page and the pac; The datasheet does not state KiCad ERC pin classes. Types were assigned from the terminal function: ; The datasheet gives no pin-level electrical limits per terminal. The descriptions quote the device's"
        ],
        "pages_sent": 7,
        "cost_usd": 0.0201,
        "at": "2026-10-20T10:19:11"
      },
      "datasheet": {
        "url": "https://datasheet.lcsc.com/datasheet/pdf/9c2aa7446b8ddb18d9e2590cc8674251.pdf",
        "pages": 7,
        "sha256": "2f1030d70beab52b",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 3,
        "described": 3,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
      {
        "file": "2sb5540sq.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          4,
          4.5,
          1.52
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0.05,
        "footprint_binding": "identity",
        "sha256": "844c0bb504d0c383535d9845c6376fe7a4053241a2ede8d8ef694df3fcfc37c8",
        "checked": "2026-10-20",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "2sb5540sq-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          4,
          4.5,
          1.52
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0.05,
        "footprint_binding": "identity",
        "sha256": "885d8154a0c5a17ac610ffb34b951f0c6a4e53b68f448f4e9860469dca980288",
        "checked": "2026-10-20",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "PJSEMI",
      "Package": "SOT-89",
      "Category": "Transistors/Thyristors",
      "Pins": "3"
    },
    "characteristics": {
      "version": 1,
      "source": "datasheet",
      "datasheet_sha256": "2f1030d70beab52b6abd0115aa348878831a36a7dab00a856c3b0fca28d79d47",
      "rows": [
        {
          "name": "DC Current Gain (VCE = -2 V, IC = -0.5 A)",
          "symbol": "HFE",
          "kind": "electrical",
          "unit": "--",
          "min": 250,
          "typ": null,
          "max": null,
          "conditions": "at VCE = -2 V, IC = -0.5 A",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "DC Current Gain (VCE = -2 V, IC = -1 A)",
          "symbol": "HFE",
          "kind": "electrical",
          "unit": "--",
          "min": 200,
          "typ": null,
          "max": null,
          "conditions": "at VCE = -2 V, IC = -1 A",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "DC Current Gain (VCE = -2 V, IC = -2 A)",
          "symbol": "HFE",
          "kind": "electrical",
          "unit": "--",
          "min": 150,
          "typ": null,
          "max": null,
          "conditions": "at VCE = -2 V, IC = -2 A",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "DC Current Gain (VCE = -2 V, IC = -5 A)",
          "symbol": "HFE",
          "kind": "electrical",
          "unit": "--",
          "min": 50,
          "typ": null,
          "max": null,
          "conditions": "at VCE = -2 V, IC = -5 A",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Collector Base Cutoff Current",
          "symbol": "-ICBO",
          "kind": "electrical",
          "unit": "nA",
          "min": null,
          "typ": null,
          "max": 500,
          "conditions": "at VCB = -20 V",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Emitter Base Cutoff Current",
          "symbol": "-IEBO",
          "kind": "electrical",
          "unit": "nA",
          "min": null,
          "typ": null,
          "max": 500,
          "conditions": "at VEB = -4 V",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Collector Base Breakdown Voltage",
          "symbol": "-V(BR)CBO",
          "kind": "electrical",
          "unit": "V",
          "min": 40,
          "typ": null,
          "max": null,
          "conditions": "at IC = -100 μA",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Collector Emitter Breakdown Voltage",
          "symbol": "-V(BR)CEO",
          "kind": "electrical",
          "unit": "V",
          "min": 40,
          "typ": null,
          "max": null,
          "conditions": "at IC = -1 mA",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Emitter Base Breakdown Voltage",
          "symbol": "-V(BR)EBO",
          "kind": "electrical",
          "unit": "V",
          "min": 6,
          "typ": null,
          "max": null,
          "conditions": "at IE = -100 μA",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Collector Emitter Saturation Voltage (IC = -500 mA, IB = -50 mA)",
          "symbol": "-VCE(sat)",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 0.13,
          "conditions": "at IC = -500 mA, IB = -50 mA",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Collector Emitter Saturation Voltage (IC = -1 A, IB = -100 mA)",
          "symbol": "-VCE(sat)",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 0.15,
          "conditions": "at IC = -1 A, IB = -100 mA",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Collector Emitter Saturation Voltage (IC = -2 A, IB = -200 mA)",
          "symbol": "-VCE(sat)",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 0.16,
          "conditions": "at IC = -2 A, IB = -200 mA",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Collector Emitter Saturation Voltage (IC = -4 A, IB = -400 mA)",
          "symbol": "-VCE(sat)",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 0.34,
          "conditions": "at IC = -4 A, IB = -400 mA",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Collector Emitter Saturation Voltage (IC = -5 A, IB = -500 mA)",
          "symbol": "-VCE(sat)",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 0.375,
          "conditions": "at IC = -5 A, IB = -500 mA",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Base Emitter Saturation Voltage (IC = -2 A, IB = -200 mA)",
          "symbol": "-VBE(sat)",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 1.15,
          "conditions": "at IC = -2 A, IB = -200 mA",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Base Emitter Saturation Voltage (IC = -4 A, IB = -400 mA)",
          "symbol": "-VBE(sat)",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 1.2,
          "conditions": "at IC = -4 A, IB = -400 mA",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Base Emitter Saturation Voltage (IC = -5 A, IB = -500 mA)",
          "symbol": "-VBE(sat)",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 1.25,
          "conditions": "at IC = -5 A, IB = -500 mA",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Base Emitter On Voltage",
          "symbol": "-VBE(on)",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 1,
          "conditions": "at VCE = -2 V, IC = -2 A",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Transition Frequency",
          "symbol": "FT",
          "kind": "electrical",
          "unit": "MHz",
          "min": 60,
          "typ": null,
          "max": null,
          "conditions": "at VCE = -5 V, IC = -100 mA, f = 100 MHz",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Output Capacitance",
          "symbol": "Cob",
          "kind": "electrical",
          "unit": "pF",
          "min": null,
          "typ": null,
          "max": 105,
          "conditions": "at VCB = -10 V, IE = 0, f = 1 MHz",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Collector Base Voltage",
          "symbol": "-VCBO",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 40,
          "conditions": "",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Collector Emitter Voltage",
          "symbol": "-VCEO",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 40,
          "conditions": "",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Emitter Base Voltage",
          "symbol": "-VEBO",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 6,
          "conditions": "",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Collector Current",
          "symbol": "-IC",
          "kind": "absolute_maximum",
          "unit": "A",
          "min": null,
          "typ": null,
          "max": 3,
          "conditions": "",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Pulsed Collector Current",
          "symbol": "-ICP",
          "kind": "absolute_maximum",
          "unit": "A",
          "min": null,
          "typ": null,
          "max": 5,
          "conditions": "",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Maximum Power Dissipation",
          "symbol": "PD",
          "kind": "absolute_maximum",
          "unit": "mW",
          "min": null,
          "typ": null,
          "max": 500,
          "conditions": "",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Junction Temperature",
          "symbol": "TJ",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": null,
          "typ": null,
          "max": 150,
          "conditions": "",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Storage Temperature Range",
          "symbol": "TSTG",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": -55,
          "typ": null,
          "max": 150,
          "conditions": "",
          "source_page": 1,
          "source": "datasheet"
        }
      ]
    }
  },
  "variants": [],
  "sections": [
    "hero",
    "viewers",
    "readme",
    "breadcrumbs",
    "info"
  ],
  "discovery_triggers": [
    "2sb5540sq"
  ],
  "discovery_pitch": "2SB5540SQ (PJSEMI) component page: datasheet pinout, KiCad symbol, footprint and 3D.",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
  },
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "2sb5540sq.kicad_sym",
    "2sb5540sq.kicad_mod",
    "2sb5540sq.glb",
    "2sb5540sq.step",
    "2sb5540sq.lbr",
    "docs/hero.png",
    "docs/2sb5540sq-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "2sb5540sq-hero.glb",
    "2sb5540sq-hero.overlay.json",
    "2sb5540sq-etched.glb"
  ],
  "visibility": {
    "public": true
  }
}