main
Ray Set visibility: public b348e37 24d ago
{
  "schema_version": 1,
  "type": "component",
  "slug": "fcs520",
  "title": "FCS520",
  "brief": "GUOXIN JIAPIN SEMICONDUCTOR Bipolar (BJT), SOT-323. 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",
    "fcs520",
    "factory-2.0.0",
    "extractor-text"
  ],
  "component": {
    "mpn": "FCS520",
    "manufacturer": "GUOXIN JIAPIN SEMICONDUCTOR",
    "package": "SOT-323",
    "pin_count": 3,
    "category": "Transistors/Thyristors",
    "subcategory": "Bipolar (BJT)",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8590233357650472960",
    "parts": {
      "symbol": "fcs520.kicad_sym",
      "footprint": "fcs520.kicad_mod",
      "model_3d": "fcs520-hero.glb",
      "model_3d_plain": "fcs520-etched.glb",
      "model_3d_step": "fcs520-etched.step",
      "model_3d_step_plain": "fcs520.step",
      "lbr": "fcs520.lbr"
    },
    "distributor_links": {
      "lcsc": "C2992552"
    },
    "distributor_check": {
      "checked_at": "2026-10-18T19:08:19Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "quota"
      },
      "mouser": {
        "pn": null,
        "status": "quota"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "B",
        "type": "input",
        "description": "Base of the FCS520 NPN transistor; the datasheet gives emitter-base breakdown VEBO of 2 V max and VEB=1 V as the test condition for IEBO (0.1 µA max)."
      },
      {
        "number": "2",
        "name": "E",
        "type": "passive",
        "description": "Emitter of the FCS520 NPN transistor; the emitter-base breakdown voltage VEBO is rated at 2 V."
      },
      {
        "number": "3",
        "name": "C",
        "type": "passive",
        "description": "Collector of the FCS520 NPN transistor; collector-emitter breakdown VCEO is rated at 12 V, collector current IC at 100 mA, and power dissipation PC at 150 mW."
      }
    ],
    "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 datasheet gives the SOT-323 pin assignment only as text (\"1:基极(Base) 2:发射极(Emitter) 3:集电极(Collec; ERC types are not stated in the datasheet. Base is set to input and Emitter and Collector to passive; The datasheet's package outline for SOT-323 gives dimensions only (A through M), with no pin-count o"
        ],
        "pages_sent": 5,
        "cost_usd": 0.0254,
        "at": "2026-10-18T19:06:05"
      },
      "datasheet": {
        "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8590233357650472960",
        "pages": 5,
        "sha256": "c223fa9bce5f26de",
        "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": "fcs520.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          2.1,
          2,
          1.1
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "acbf75a28fe41aa90efb38cd2b78220968d6eb6ebae1625dfd532dbeb268fece",
        "checked": "2026-10-18",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "fcs520-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          2.1,
          2,
          1.1
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "905d3777609006495b22f3efc4ea7e33e9b0c5fa79fb3ade4b7385e4f2dce4d8",
        "checked": "2026-10-18",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "GUOXIN JIAPIN SEMICONDUCTOR",
      "Package": "SOT-323",
      "Category": "Transistors/Thyristors",
      "Pins": "3"
    },
    "characteristics": {
      "version": 1,
      "source": "datasheet",
      "datasheet_sha256": "c223fa9bce5f26de127105b4c4d0b39d28191b3ef4786fd9726ec9fed388e652",
      "rows": [
        {
          "name": "Collector-base breakdown voltage (absolute maximum)",
          "symbol": "VCBO",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 20,
          "conditions": "TA=25℃",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Collector-emitter breakdown voltage (absolute maximum)",
          "symbol": "VCEO",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 12,
          "conditions": "TA=25℃",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Emitter-base breakdown voltage (absolute maximum)",
          "symbol": "VEBO",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 2,
          "conditions": "TA=25℃",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Collector current",
          "symbol": "IC",
          "kind": "absolute_maximum",
          "unit": "mA",
          "min": null,
          "typ": null,
          "max": 100,
          "conditions": "TA=25℃",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Power dissipation",
          "symbol": "PC",
          "kind": "absolute_maximum",
          "unit": "mW",
          "min": null,
          "typ": null,
          "max": 150,
          "conditions": "TA=25℃",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Junction temperature",
          "symbol": "Tj",
          "kind": "absolute_maximum",
          "unit": "℃",
          "min": null,
          "typ": null,
          "max": 150,
          "conditions": "TA=25℃",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Storage temperature",
          "symbol": "Tstg",
          "kind": "absolute_maximum",
          "unit": "℃",
          "min": -65,
          "typ": null,
          "max": 150,
          "conditions": "TA=25℃",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Collector-base breakdown voltage",
          "symbol": "VCBO",
          "kind": "electrical",
          "unit": "V",
          "min": 20,
          "typ": null,
          "max": null,
          "conditions": "IC=1.0µA",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Collector-base leakage current",
          "symbol": "ICBO",
          "kind": "electrical",
          "unit": "µA",
          "min": null,
          "typ": null,
          "max": 0.1,
          "conditions": "VCB=10V",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Emitter-base leakage current",
          "symbol": "IEBO",
          "kind": "electrical",
          "unit": "µA",
          "min": null,
          "typ": null,
          "max": 0.1,
          "conditions": "VEB=1V",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "DC current gain",
          "symbol": "hFE",
          "kind": "electrical",
          "unit": "",
          "min": 90,
          "typ": 150,
          "max": 250,
          "conditions": "VCE=6V,IC=20mA",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Noise figure",
          "symbol": "NF",
          "kind": "electrical",
          "unit": "dB",
          "min": null,
          "typ": 1.5,
          "max": 2,
          "conditions": "VCE=6V,IC=5mA,f=1GHz",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Output feedback capacitance",
          "symbol": "Cre",
          "kind": "electrical",
          "unit": "pF",
          "min": null,
          "typ": 0.4,
          "max": 0.7,
          "conditions": "VCB=6V,IE=0mA,f=1MHz",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Transition frequency",
          "symbol": "fT",
          "kind": "electrical",
          "unit": "GHz",
          "min": null,
          "typ": 8,
          "max": null,
          "conditions": "VCE=6V,IC=20mA,f=1GHz",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Power gain",
          "symbol": "|S21e|2",
          "kind": "electrical",
          "unit": "dB",
          "min": null,
          "typ": 12.5,
          "max": null,
          "conditions": "VCE=6V,IC=20mA,f=1GHz",
          "source_page": 2,
          "source": "datasheet"
        }
      ]
    }
  },
  "variants": [],
  "sections": [
    "hero",
    "viewers",
    "readme",
    "breadcrumbs",
    "info"
  ],
  "discovery_triggers": [
    "fcs520"
  ],
  "discovery_pitch": "FCS520 (GUOXIN JIAPIN SEMICONDUCTOR) component page: datasheet pinout, KiCad symbol, footprint and 3D.",
  "author": {
    "name": "Ray"
  },
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "fcs520.kicad_sym",
    "fcs520.kicad_mod",
    "fcs520.glb",
    "fcs520.step",
    "fcs520.lbr",
    "docs/hero.png",
    "docs/fcs520-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "fcs520-hero.glb",
    "fcs520-hero.overlay.json",
    "fcs520-etched.glb"
  ],
  "visibility": {
    "public": true
  }
}