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Ray Set visibility: public 68cdb0a 23d ago
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{
  "schema_version": 1,
  "type": "component",
  "slug": "mmdt3946",
  "title": "MMDT3946",
  "brief": "Slkor SLKORMICRO Elec Bipolar (BJT), SOT-363. 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",
    "mmdt3946",
    "factory-2.0.0",
    "extractor-text"
  ],
  "component": {
    "mpn": "MMDT3946",
    "manufacturer": "Slkor SLKORMICRO Elec",
    "package": "SOT-363",
    "pin_count": 6,
    "category": "Transistors/Thyristors",
    "subcategory": "Bipolar (BJT)",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588954676712235008",
    "parts": {
      "symbol": "mmdt3946.kicad_sym",
      "footprint": "mmdt3946.kicad_mod",
      "model_3d": "mmdt3946-hero.glb",
      "model_3d_plain": "mmdt3946-etched.glb",
      "model_3d_step": "mmdt3946-etched.step",
      "model_3d_step_plain": "mmdt3946.step",
      "lbr": "mmdt3946.lbr"
    },
    "distributor_links": {
      "lcsc": "C49383129"
    },
    "distributor_check": {
      "checked_at": "2026-10-17T18:12:43Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "quota"
      },
      "mouser": {
        "pn": null,
        "status": "quota"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "E2",
        "type": "passive",
        "description": "Emitter of transistor 2 (the NPN 3904-type device in the drawing); NPN section ratings are VCEO 40 V, VCBO 60 V, VEBO 6 V, IC 0.2 A."
      },
      {
        "number": "2",
        "name": "B2",
        "type": "input",
        "description": "Base of transistor 2 (the NPN 3904-type device in the drawing); NPN section ratings are VCEO 40 V, VCBO 60 V, VEBO 6 V, IC 0.2 A."
      },
      {
        "number": "3",
        "name": "C1",
        "type": "passive",
        "description": "Collector of transistor 1 (the PNP 3906-type device in the drawing); PNP section ratings are VCEO -40 V, VCBO -40 V, VEBO -5.0 V, IC -0.2 A."
      },
      {
        "number": "4",
        "name": "E1",
        "type": "passive",
        "description": "Emitter of transistor 1 (the PNP 3906-type device in the drawing); PNP section ratings are VCEO -40 V, VCBO -40 V, VEBO -5.0 V, IC -0.2 A."
      },
      {
        "number": "5",
        "name": "B1",
        "type": "input",
        "description": "Base of transistor 1 (the PNP 3906-type device in the drawing); PNP section ratings are VCEO -40 V, VCBO -40 V, VEBO -5.0 V, IC -0.2 A."
      },
      {
        "number": "6",
        "name": "C2",
        "type": "passive",
        "description": "Collector of transistor 2 (the NPN 3904-type device in the drawing); NPN section ratings are VCEO 40 V, VCBO 60 V, VEBO 6 V, IC 0.2 A."
      }
    ],
    "provenance": {
      "extractor": "extract_pins 0.3",
      "factory_chain": {
        "factory": "2.0.0",
        "extractor": "extract_pins 0.3",
        "primary_model": "claude-sonnet-5-5",
        "primary_mode": "text+vision",
        "consensus_model": "claude-opus-5-5",
        "consensus": "agreed",
        "guards": "pin_guards 0.1: passed",
        "guard_notes": [
          "extractor flagged: The datasheet drawing labels the pads (top row left to right: C2, B1, E1; bottom row: E2, B2, C1) an; The text never says which transistor is the NPN and which is the PNP. I inferred it from the emitter",
          "vision extraction: provenance cannot be text-verified; needs consensus"
        ],
        "pages_sent": 5,
        "cost_usd": 0.2574,
        "at": "2026-10-17T18:10:40"
      },
      "datasheet": {
        "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588954676712235008",
        "pages": 5,
        "sha256": "1a0c46ee38efdb3b",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 6,
        "described": 6,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
      {
        "file": "mmdt3946.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": "045cc95e18ee7a13d1623c3ce6604fc833049bdb4f952f68c26e3c5767d122e4",
        "checked": "2026-10-17",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "mmdt3946-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": "55053d673568e4b9b2d098c6b239c842ccc20860712c4f4dec9f2a829f14f46c",
        "checked": "2026-10-17",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "Slkor SLKORMICRO Elec",
      "Package": "SOT-363",
      "Category": "Transistors/Thyristors",
      "Pins": "6"
    },
    "characteristics": {
      "version": 1,
      "source": "datasheet",
      "datasheet_sha256": "1a0c46ee38efdb3bbc132e3cbedb15847b4a0d646815d5091bb8d1701c080ec0",
      "rows": [
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          "symbol": "V(BR)CBO",
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          "conditions": "IC=10μA,IE=0",
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        },
        {
          "name": "NPN: Collector-emitter breakdown voltage",
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          "min": 40,
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          "max": null,
          "conditions": "IC=1mA,IB=0",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "NPN: Emitter-base breakdown voltage",
          "symbol": "V(BR)EBO",
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          "min": 5,
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          "conditions": "IE=10μA,IC=0",
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          "source": "datasheet"
        },
        {
          "name": "NPN: Collector cut-off current",
          "symbol": "ICEX",
          "kind": "electrical",
          "unit": "nA",
          "min": null,
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          "conditions": "VCE=30V, VEB(OFF)=3.0V",
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          "source": "datasheet"
        },
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          "name": "NPN: DC current gain",
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          "min": 60,
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        {
          "name": "NPN: DC current gain",
          "symbol": "hFE",
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          "unit": "",
          "min": 30,
          "typ": null,
          "max": null,
          "conditions": "VCE=1V, IC=100mA",
          "source_page": 2,
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          "name": "NPN: Collector-emitter saturation voltage",
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          "conditions": "IC=10mA, IB=1.0mA",
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        {
          "name": "NPN: Base-emitter saturation voltage",
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          "conditions": "IC=10mA, IB=1mA",
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          "conditions": "IC=50mA, IB=5mA",
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        {
          "name": "NPN: Output capacitance",
          "symbol": "Cobo",
          "kind": "electrical",
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          "conditions": "IE=0, VCB=5V; f=1MHz",
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        {
          "name": "NPN: Input capacitance",
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          "conditions": "IC=0, VEB=0.5V; f=1MHz",
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        {
          "name": "NPN: Transition frequency",
          "symbol": "fT",
          "kind": "electrical",
          "unit": "MHz",
          "min": 300,
          "typ": null,
          "max": null,
          "conditions": "IC=20mA, VCE=20V, f=100MHz",
          "source_page": 2,
          "source": "datasheet"
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        {
          "name": "NPN: Noise figure",
          "symbol": "NF",
          "kind": "electrical",
          "unit": "dB",
          "min": null,
          "typ": null,
          "max": 5,
          "conditions": "IC=0.1mA, VCE=5V, RS=1kΩ, f=1kHz",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "NPN: Delay time",
          "symbol": "td",
          "kind": "timing",
          "unit": "ns",
          "min": null,
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          "source": "datasheet"
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        {
          "name": "NPN: Rise time",
          "symbol": "tr",
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          "conditions": "VCC=3V, VBE(off)=-0.5V, IC=10mA, IB1=IB2=1mA",
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          "source": "datasheet"
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        {
          "name": "NPN: Storage time",
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          "name": "NPN: Fall time",
          "symbol": "tf",
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          "conditions": "VCC=3V, IC=10mA, IB1=IB2=1mA",
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        {
          "name": "PNP: Collector-base breakdown voltage",
          "symbol": "V(BR)CBO",
          "kind": "electrical",
          "unit": "V",
          "min": -40,
          "typ": null,
          "max": null,
          "conditions": "IC=-10μA,IE=0",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "PNP: Collector-emitter breakdown voltage",
          "symbol": "V(BR)CEO",
          "kind": "electrical",
          "unit": "V",
          "min": -40,
          "typ": null,
          "max": null,
          "conditions": "IC=-1mA,IB=0",
          "source_page": 3,
          "source": "datasheet"
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        {
          "name": "PNP: Emitter-base breakdown voltage",
          "symbol": "V(BR)EBO",
          "kind": "electrical",
          "unit": "V",
          "min": -5,
          "typ": null,
          "max": null,
          "conditions": "IE=-10μA,IC=0",
          "source_page": 3,
          "source": "datasheet"
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        {
          "name": "PNP: Collector cut-off current",
          "symbol": "ICEX",
          "kind": "electrical",
          "unit": "μA",
          "min": null,
          "typ": null,
          "max": -0.05,
          "conditions": "VCE=-30V, VEB(OFF)=-3.0V",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "PNP: Base cut-off current",
          "symbol": "IBL",
          "kind": "electrical",
          "unit": "μA",
          "min": null,
          "typ": null,
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          "conditions": "VCE=-30V, VEB(OFF)=-3.0V",
          "source_page": 3,
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        {
          "name": "PNP: DC current gain",
          "symbol": "hFE",
          "kind": "electrical",
          "unit": "",
          "min": 60,
          "typ": null,
          "max": null,
          "conditions": "VCE=-1V, IC=-0.1mA",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "PNP: DC current gain",
          "symbol": "hFE",
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          "unit": "",
          "min": 80,
          "typ": null,
          "max": null,
          "conditions": "VCE=-1V, IC=-1mA",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "PNP: DC current gain",
          "symbol": "hFE",
          "kind": "electrical",
          "unit": "",
          "min": 100,
          "typ": null,
          "max": 300,
          "conditions": "VCE=-1V, IC=-10mA",
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        },
        {
          "name": "PNP: DC current gain",
          "symbol": "hFE",
          "kind": "electrical",
          "unit": "",
          "min": 30,
          "typ": null,
          "max": null,
          "conditions": "VCE=-1V, IC=-100mA",
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        },
        {
          "name": "PNP: Collector-emitter saturation voltage",
          "symbol": "VCE(sat)",
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          "min": null,
          "typ": null,
          "max": -250,
          "conditions": "IC=-10mA, IB=-1mA",
          "source_page": 3,
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        },
        {
          "name": "PNP: Collector-emitter saturation voltage",
          "symbol": "VCE(sat)",
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          "min": null,
          "typ": null,
          "max": -400,
          "conditions": "IC=-50mA, IB=-5mA",
          "source_page": 3,
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        },
        {
          "name": "PNP: Base-emitter saturation voltage",
          "symbol": "VBE(sat)",
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        {
          "name": "PNP: Base-emitter saturation voltage",
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          "kind": "electrical",
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          "min": null,
          "typ": null,
          "max": 4.5,
          "conditions": "IE=0, VCB=-5V; f=1MHz",
          "source_page": 3,
          "source": "datasheet"
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        {
          "name": "PNP: Input capacitance",
          "symbol": "Cobi",
          "kind": "electrical",
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          "min": null,
          "typ": null,
          "max": 10,
          "conditions": "IC=0, VEB=-0.5V; f=1MHz",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "PNP: Transition frequency",
          "symbol": "fT",
          "kind": "electrical",
          "unit": "MHz",
          "min": 250,
          "typ": null,
          "max": null,
          "conditions": "IC=-10mA, VCE=-20V, f=100MHz",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "PNP: Noise figure",
          "symbol": "NF",
          "kind": "electrical",
          "unit": "dB",
          "min": null,
          "typ": null,
          "max": 4,
          "conditions": "IC=-0.1mA, VCE=-5V, RS=1.0kΩ, f=1.0kHz",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "PNP: Delay time",
          "symbol": "td",
          "kind": "timing",
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          "min": null,
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          "max": 35,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "PNP: Rise time",
          "symbol": "tr",
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          "unit": "ns",
          "min": null,
          "typ": null,
          "max": 35,
          "conditions": "VCC=-3V, VBE(off)=0.5V, IC=-10mA, IB1=-IB2=-1mA",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "PNP: Storage time",
          "symbol": "ts",
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