main
Ray Set visibility: public ecc09bb 13d ago
{
  "schema_version": 1,
  "type": "component",
  "slug": "mmbt4403-6af",
  "title": "MMBT4403-6AF",
  "brief": "FOSAN 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": [
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    "transistors-thyristors",
    "mmbt4403-6af",
    "factory-2.0.0",
    "extractor-text"
  ],
  "component": {
    "mpn": "MMBT4403-6AF",
    "manufacturer": "FOSAN",
    "package": "SOT-23",
    "pin_count": 3,
    "category": "Transistors/Thyristors",
    "subcategory": "Bipolar (BJT)",
    "datasheet": "https://datasheet.lcsc.com/datasheet/pdf/14c5becb35397ef4cc90eefc0ce92512.pdf",
    "parts": {
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      "footprint": "mmbt4403-6af.kicad_mod",
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      "model_3d_plain": "mmbt4403-6af-etched.glb",
      "model_3d_step": "mmbt4403-6af-etched.step",
      "model_3d_step_plain": "mmbt4403-6af.step",
      "lbr": "mmbt4403-6af.lbr"
    },
    "distributor_links": {
      "lcsc": "C48587185"
    },
    "distributor_check": {
      "checked_at": "2026-10-21T03:52:43Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "no match"
      },
      "mouser": {
        "pn": null,
        "status": "no match"
      }
    },
    "pins": [
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        "name": "B",
        "type": "input",
        "description": "Base of the PNP switching transistor; the page 1 symbol shows B at the bottom-left lead of the SOT-23 outline, and the Emitter-Base Voltage (VEBO) limit is -5 V."
      },
      {
        "number": "2",
        "name": "E",
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      },
      {
        "number": "3",
        "name": "C",
        "type": "passive",
        "description": "Collector of the PNP transistor on the single top lead, rated for IC of -600 mA, VCBO of -40 V and VCEO of -40 V."
      }
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        "consensus": "agreed",
        "guards": "pin_guards 0.1: passed",
        "guard_notes": [
          "extractor flagged: The package drawing prints no pin numbers. The page 1 symbol shows only the letters B (bottom-left),",
          "vision extraction: provenance cannot be text-verified; needs consensus"
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        "pages_sent": 4,
        "cost_usd": 0.1849,
        "at": "2026-10-21T03:47:55"
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        "pages": 4,
        "sha256": "4b57a5a70a272267",
        "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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      "footprint": "viewers/footprint.html"
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        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
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          3,
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        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "dd5d1711204e1d8d26cd11490923bd84340820baa69538c385a4300ec2539bc0",
        "checked": "2026-10-21",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
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        "sha256": "c01db6667635b814b07bd3483d6175efbe3338ef5473e69ca4869de62fb03103",
        "checked": "2026-10-21",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
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  },
  "metadata": {
    "specs": {
      "Manufacturer": "FOSAN",
      "Package": "SOT-23",
      "Category": "Transistors/Thyristors",
      "Pins": "3"
    },
    "characteristics": {
      "version": 1,
      "source": "datasheet",
      "datasheet_sha256": "4b57a5a70a2722676ca77aa2666d0026a63d3372e0a0ebabce38f6703b82e5a5",
      "rows": [
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          "symbol": "VCBO",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -40,
          "typ": null,
          "max": null,
          "conditions": "",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Collector-Emitter Voltage",
          "symbol": "VCEO",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -40,
          "typ": null,
          "max": null,
          "conditions": "",
          "source_page": 1,
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        },
        {
          "name": "Emitter-Base Voltage",
          "symbol": "VEBO",
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          "typ": null,
          "max": null,
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        {
          "name": "Collector Current",
          "symbol": "IC",
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          "unit": "mA",
          "min": -600,
          "typ": null,
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          "conditions": "",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Power dissipation",
          "symbol": "PC",
          "kind": "absolute_maximum",
          "unit": "mW",
          "min": null,
          "typ": null,
          "max": 250,
          "conditions": "Ta=25℃",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Thermal Resistance Junction-Ambient",
          "symbol": "RΘJA",
          "kind": "thermal",
          "unit": "℃/W",
          "min": null,
          "typ": null,
          "max": 500,
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        },
        {
          "name": "Junction and Storage Temperature",
          "symbol": "TJ,Tstg",
          "kind": "absolute_maximum",
          "unit": "℃",
          "min": -55,
          "typ": null,
          "max": 150,
          "conditions": "",
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        },
        {
          "name": "Collector-Base Breakdown Voltage",
          "symbol": "BVCBO",
          "kind": "electrical",
          "unit": "V",
          "min": -40,
          "typ": null,
          "max": null,
          "conditions": "IC= -10uA, IE=0",
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        },
        {
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          "symbol": "BVCEO",
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          "min": -40,
          "typ": null,
          "max": null,
          "conditions": "IC= -1mA, IB=0",
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          "source": "datasheet"
        },
        {
          "name": "Emitter-Base Breakdown Voltage",
          "symbol": "BVEBO",
          "kind": "electrical",
          "unit": "V",
          "min": -5,
          "typ": null,
          "max": null,
          "conditions": "IE= -10uA, IC=0",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Collector-Base Leakage Current",
          "symbol": "ICBO",
          "kind": "electrical",
          "unit": "nA",
          "min": null,
          "typ": null,
          "max": -100,
          "conditions": "VCB= -35V, IE=0",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Collector-Emitter Leakage Current",
          "symbol": "ICEX",
          "kind": "electrical",
          "unit": "nA",
          "min": null,
          "typ": null,
          "max": -100,
          "conditions": "VCE= -35V, VBE=0.5V",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Emitter-Base Leakage Current",
          "symbol": "IEBO",
          "kind": "electrical",
          "unit": "nA",
          "min": null,
          "typ": null,
          "max": -100,
          "conditions": "VEB= -4V, IC=0",
          "source_page": 2,
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        },
        {
          "name": "DC Current Gain",
          "symbol": "HFE",
          "kind": "electrical",
          "unit": "",
          "min": 100,
          "typ": null,
          "max": 300,
          "conditions": "VCE= -2V, IC=-150mA",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "DC Current Gain",
          "symbol": "HFE",
          "kind": "electrical",
          "unit": "",
          "min": 30,
          "typ": null,
          "max": null,
          "conditions": "VCE= -1V, IC= -0.1mA",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "DC Current Gain",
          "symbol": "HFE",
          "kind": "electrical",
          "unit": "",
          "min": 20,
          "typ": null,
          "max": null,
          "conditions": "VCE= -2V, IC= -500mA",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Collector-Emitter Saturation Voltage",
          "symbol": "VCE(sat)",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": -0.6,
          "conditions": "IC= -500mA, IB= -50mA",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Collector-Emitter Saturation Voltage",
          "symbol": "VCE(sat)",
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          "min": null,
          "typ": null,
          "max": -0.4,
          "conditions": "IC= -150mA, IB= -15mA",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Base-Emitter Saturation Voltage",
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          "kind": "electrical",
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          "max": -2.6,
          "conditions": "IC= -500mA, IB= -50mA",
          "source_page": 2,
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        {
          "name": "Base-Emitter Saturation Voltage",
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          "source_page": 2,
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        },
        {
          "name": "Transition Frequency",
          "symbol": "fT",
          "kind": "electrical",
          "unit": "MHZ",
          "min": 200,
          "typ": null,
          "max": null,
          "conditions": "VCE= -20V, IC= -20mA",
          "source_page": 2,
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        },
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          "name": "Delay Time",
          "symbol": "td",
          "kind": "timing",
          "unit": "ns",
          "min": null,
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          "max": 10,
          "conditions": "VCC= -30V, VBE=0.5V, IC= -150mA, IB1= -15mA",
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        {
          "name": "Rise Time",
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          "max": 25,
          "conditions": "VCC=-30V, VBE=0.5V, IC= -150mA, IB1= -15mA",
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          "name": "Storage Time",
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          "typ": null,
          "max": 225,
          "conditions": "VCC= -30V, IC= -150mA, IB1=IB2= -15mA",
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        {
          "name": "Fall Time",
          "symbol": "tf",
          "kind": "timing",
          "unit": "ns",
          "min": null,
          "typ": null,
          "max": 60,
          "conditions": "VCC= -30V, IC= -150mA, IB1=IB2= -15mA",
          "source_page": 2,
          "source": "datasheet"
        }
      ]
    }
  },
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  "discovery_triggers": [
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  "discovery_pitch": "MMBT4403-6AF (FOSAN) component page: datasheet pinout, KiCad symbol, footprint and 3D.",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
  },
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