main
Ray Set visibility: public 2c60291 16d ago
{
  "schema_version": 1,
  "type": "component",
  "slug": "bc856-b",
  "title": "BC856-B",
  "brief": "Foshan Blue Rocket Elec Bipolar (BJT), SOT-23. 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",
    "bc856-b",
    "factory-2.0.0",
    "extractor-text"
  ],
  "component": {
    "mpn": "BC856-B",
    "manufacturer": "Foshan Blue Rocket Elec",
    "package": "SOT-23",
    "pin_count": 3,
    "category": "Transistors/Thyristors",
    "subcategory": "Bipolar (BJT)",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588944301217239040",
    "parts": {
      "symbol": "bc856-b.kicad_sym",
      "footprint": "bc856-b.kicad_mod",
      "model_3d": "bc856-b-hero.glb",
      "model_3d_plain": "bc856-b-etched.glb",
      "model_3d_step": "bc856-b-etched.step",
      "model_3d_step_plain": "bc856-b.step",
      "lbr": "bc856-b.lbr"
    },
    "distributor_links": {
      "lcsc": "C2844031",
      "mouser": "637-BC856B"
    },
    "distributor_check": {
      "checked_at": "2026-10-19T02:53:00Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "no match"
      },
      "mouser": {
        "pn": "637-BC856B",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "Base",
        "type": "passive",
        "description": "Base terminal of the PNP transistor; the datasheet gives the BC856 absolute maximum VEBO of -5.0 V and a base-emitter saturation of -0.9 V at IC=-100mA, IB=-5.0mA."
      },
      {
        "number": "2",
        "name": "Emitter",
        "type": "passive",
        "description": "Emitter terminal of the PNP transistor; the datasheet gives an emitter-to-base voltage rating of VEBO -5.0 V and a collector current rating of -100 mA continuous."
      },
      {
        "number": "3",
        "name": "Collector",
        "type": "passive",
        "description": "Collector terminal of the PNP transistor; the datasheet gives ratings of VCBO -80 V, VCEO -65 V, IC -100 mA continuous and PC 350 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: Pinout is taken from the datasheet pinning note on page 1 (PIN1 Base, PIN2 Emitter, PIN3 Collector) ; Pin types are set to KiCad 'passive' because the datasheet gives no electrical pin classification fo"
        ],
        "pages_sent": 6,
        "cost_usd": 0.0255,
        "at": "2026-10-19T02:50:46"
      },
      "datasheet": {
        "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588944301217239040",
        "pages": 6,
        "sha256": "141621fb5c0a3e87",
        "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": "bc856-b.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          2.5,
          3,
          1.2
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "dd5d1711204e1d8d26cd11490923bd84340820baa69538c385a4300ec2539bc0",
        "checked": "2026-10-19",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "bc856-b-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          2.5,
          3,
          1.2
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "9ab0566b9825dc499e4fde582b6732477ea724d0ab8d607be287cac0f6fdeba7",
        "checked": "2026-10-19",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "Foshan Blue Rocket Elec",
      "Package": "SOT-23",
      "Category": "Transistors/Thyristors",
      "Pins": "3"
    },
    "characteristics": {
      "version": 1,
      "source": "datasheet",
      "datasheet_sha256": "141621fb5c0a3e875e25b70beea5063f5fe00576389d2844123a68f63f8dc708",
      "rows": [
        {
          "name": "Collector to Base Voltage",
          "symbol": "VCBO",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": -80,
          "conditions": "Ta=25℃",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Collector to Emitter Voltage",
          "symbol": "VCEO",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": -65,
          "conditions": "Ta=25℃",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Emitter to Base Voltage",
          "symbol": "VEBO",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": -5,
          "conditions": "Ta=25℃",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Collector Current - Continuous",
          "symbol": "IC",
          "kind": "absolute_maximum",
          "unit": "mA",
          "min": null,
          "typ": null,
          "max": -100,
          "conditions": "Ta=25℃",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Collector Power Dissipation",
          "symbol": "PC",
          "kind": "absolute_maximum",
          "unit": "mW",
          "min": null,
          "typ": null,
          "max": 350,
          "conditions": "Ta=25℃",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Junction Temperature",
          "symbol": "Tj",
          "kind": "absolute_maximum",
          "unit": "℃",
          "min": null,
          "typ": null,
          "max": 150,
          "conditions": "Ta=25℃",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Storage Temperature Range",
          "symbol": "Tstg",
          "kind": "absolute_maximum",
          "unit": "℃",
          "min": -55,
          "typ": null,
          "max": 150,
          "conditions": "Ta=25℃",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Collector Cut-Off Current",
          "symbol": "ICBO",
          "kind": "electrical",
          "unit": "μA",
          "min": null,
          "typ": null,
          "max": -0.015,
          "conditions": "VCB=-30 V IE=0",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Collector to Emitter Saturation Voltage",
          "symbol": "VCE(sat)(1)",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": -0.09,
          "max": -0.3,
          "conditions": "IC=-10mA IB=-0.5mA",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Collector to Emitter Saturation Voltage",
          "symbol": "VCE(sat)(2)",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": -0.25,
          "max": -0.65,
          "conditions": "IC=-100mA IB=-5.0mA",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Base to Emitter Saturation Voltage",
          "symbol": "VBE(sat)(1)",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": -0.7,
          "conditions": "IC=-10mA IB=-0.5mA",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Base to Emitter Saturation Voltage",
          "symbol": "VBE(sat)(2)",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": -0.9,
          "conditions": "IC=-100mA IB=-5.0mA",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Base to Emitter Voltage",
          "symbol": "VBE(ON)1",
          "kind": "electrical",
          "unit": "V",
          "min": -0.6,
          "typ": -0.65,
          "max": -0.75,
          "conditions": "VCE=-5.0V IC=-2.0mA",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Base to Emitter Voltage",
          "symbol": "VBE(ON)2",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": -0.82,
          "conditions": "VCE=-5.0V IC=-10mA",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Transition Frequency",
          "symbol": "fT",
          "kind": "electrical",
          "unit": "MHz",
          "min": 150,
          "typ": null,
          "max": null,
          "conditions": "VCE=-5.0V IC=10mA f=100MHz",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Collector Output Capacitance",
          "symbol": "Cob",
          "kind": "electrical",
          "unit": "pF",
          "min": null,
          "typ": null,
          "max": 4.5,
          "conditions": "VCB=-10V IE=0 f=1.0MHz",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Noise Figure",
          "symbol": "NF",
          "kind": "electrical",
          "unit": "dB",
          "min": null,
          "typ": 2,
          "max": 10,
          "conditions": "VCE=-6.0V IC=-0.1mA Rg=2KΩ f=1.0KHz",
          "source_page": 2,
          "source": "datasheet"
        }
      ]
    }
  },
  "variants": [],
  "sections": [
    "hero",
    "viewers",
    "readme",
    "breadcrumbs",
    "info"
  ],
  "discovery_triggers": [
    "bc856-b"
  ],
  "discovery_pitch": "BC856-B (Foshan Blue Rocket Elec) 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",
    "bc856-b.kicad_sym",
    "bc856-b.kicad_mod",
    "bc856-b.glb",
    "bc856-b.step",
    "bc856-b.lbr",
    "docs/hero.png",
    "docs/bc856-b-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "bc856-b-hero.glb",
    "bc856-b-hero.overlay.json",
    "bc856-b-etched.glb"
  ],
  "visibility": {
    "public": true
  }
}