WST3423

{
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  "type": "component",
  "slug": "wst3423",
  "title": "WST3423",
  "brief": "Winsok Semicon MOSFETs, 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",
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  "component": {
    "mpn": "WST3423",
    "manufacturer": "Winsok Semicon",
    "package": "SOT-23",
    "pin_count": 3,
    "category": "Transistors/Thyristors",
    "subcategory": "MOSFETs",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8586188655584665600",
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      "lbr": "wst3423.lbr"
    },
    "distributor_links": {
      "lcsc": "C148343"
    },
    "distributor_check": {
      "checked_at": "2026-10-18T14:29:02Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "quota"
      },
      "mouser": {
        "pn": null,
        "status": "quota"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "G",
        "type": "input",
        "description": "Gate; the datasheet pin drawing shows it at the bottom-left of the SOT-23N, with VGS rated ±12 V maximum and threshold of -0.3 to -1 V at ID=-250uA."
      },
      {
        "number": "2",
        "name": "S",
        "type": "passive",
        "description": "Source; the datasheet pin drawing shows it at the bottom-right of the SOT-23N, with continuous source current of -2.4 A maximum."
      },
      {
        "number": "3",
        "name": "D",
        "type": "passive",
        "description": "Drain; the datasheet pin drawing shows it as the single pin on the top side of the SOT-23N, with VDS rated -20 V and continuous ID of -2.9 A at 25°C."
      }
    ],
    "provenance": {
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        "guards": "pin_guards 0.1: passed",
        "guard_notes": [
          "extractor flagged: The pin drawing on page 1 labels the pins D, G and S but prints no pin numbers. The numbers 1=G, 2=S",
          "vision extraction: provenance cannot be text-verified; needs consensus"
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        "cost_usd": 0.1793,
        "at": "2026-10-18T14:28:49"
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      "datasheet": {
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        "pages": 5,
        "sha256": "a6775f3cede9c75c",
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      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 3,
        "described": 3,
        "cites_pages": true,
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        "seat": "z = 0",
        "extents_mm": [
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        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
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        "checked": "2026-10-18",
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  "metadata": {
    "specs": {
      "Manufacturer": "Winsok Semicon",
      "Package": "SOT-23",
      "Category": "Transistors/Thyristors",
      "Pins": "3"
    },
    "characteristics": {
      "version": 1,
      "source": "datasheet",
      "datasheet_sha256": "a6775f3cede9c75c2294019b3349aa7f985da0a109e7609e27ce42a26af55268",
      "rows": [
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          "name": "Drain-Source Voltage",
          "symbol": "VDS",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": -20,
          "conditions": "",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Gate-Source Voltage",
          "symbol": "VGS",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -12,
          "typ": null,
          "max": 12,
          "conditions": "",
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        },
        {
          "name": "Continuous Drain Current",
          "symbol": "ID@Tc=25℃",
          "kind": "absolute_maximum",
          "unit": "A",
          "min": null,
          "typ": null,
          "max": -2.9,
          "conditions": "Tc=25℃, VGS @ -4.5V",
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          "source": "datasheet"
        },
        {
          "name": "Continuous Drain Current",
          "symbol": "ID@Tc=70℃",
          "kind": "absolute_maximum",
          "unit": "A",
          "min": null,
          "typ": null,
          "max": -1.9,
          "conditions": "Tc=70℃, VGS @ -4.5V",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Pulsed Drain Current",
          "symbol": "IDM",
          "kind": "absolute_maximum",
          "unit": "A",
          "min": null,
          "typ": null,
          "max": -10,
          "conditions": "",
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        },
        {
          "name": "Total Power Dissipation",
          "symbol": "PD@TA=25℃",
          "kind": "absolute_maximum",
          "unit": "W",
          "min": null,
          "typ": null,
          "max": 1,
          "conditions": "TA=25℃",
          "source_page": 1,
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        },
        {
          "name": "Storage Temperature Range",
          "symbol": "TSTG",
          "kind": "absolute_maximum",
          "unit": "℃",
          "min": -55,
          "typ": null,
          "max": 150,
          "conditions": "",
          "source_page": 1,
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        },
        {
          "name": "Operating Junction Temperature Range",
          "symbol": "TJ",
          "kind": "absolute_maximum",
          "unit": "℃",
          "min": -55,
          "typ": null,
          "max": 150,
          "conditions": "",
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        },
        {
          "name": "Thermal Resistance Junction-ambient",
          "symbol": "RθJA",
          "kind": "thermal",
          "unit": "℃/W",
          "min": null,
          "typ": null,
          "max": 125,
          "conditions": "",
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        },
        {
          "name": "Thermal Resistance Junction-Case",
          "symbol": "RθJC",
          "kind": "thermal",
          "unit": "℃/W",
          "min": null,
          "typ": null,
          "max": 80,
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        },
        {
          "name": "Drain-Source Breakdown Voltage",
          "symbol": "BVDSS",
          "kind": "electrical",
          "unit": "V",
          "min": -20,
          "typ": null,
          "max": null,
          "conditions": "VGS=0V, ID=-250uA",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Static Drain-Source On-Resistance",
          "symbol": "RDS(ON)",
          "kind": "electrical",
          "unit": "mΩ",
          "min": null,
          "typ": 100,
          "max": 130,
          "conditions": "VGS=-4.5V, ID=-2A",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Static Drain-Source On-Resistance",
          "symbol": "RDS(ON)",
          "kind": "electrical",
          "unit": "mΩ",
          "min": null,
          "typ": 145,
          "max": 170,
          "conditions": "VGS=-2.5V, ID=-1A",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Static Drain-Source On-Resistance",
          "symbol": "RDS(ON)",
          "kind": "electrical",
          "unit": "mΩ",
          "min": null,
          "typ": 185,
          "max": 220,
          "conditions": "VGS=-1.8V, ID=-1.5A",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Gate Threshold Voltage",
          "symbol": "VGS(th)",
          "kind": "electrical",
          "unit": "V",
          "min": -0.3,
          "typ": -0.5,
          "max": -1,
          "conditions": "VGS=VDS, ID=-250uA",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Drain-Source Leakage Current",
          "symbol": "IDSS",
          "kind": "electrical",
          "unit": "uA",
          "min": null,
          "typ": null,
          "max": -1,
          "conditions": "VDS=-16V, VGS=0V, TJ=25℃",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Drain-Source Leakage Current",
          "symbol": "IDSS",
          "kind": "electrical",
          "unit": "uA",
          "min": null,
          "typ": null,
          "max": -5,
          "conditions": "VDS=-16V, VGS=0V, TJ=55℃",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Gate-Source Leakage Current",
          "symbol": "IGSS",
          "kind": "electrical",
          "unit": "nA",
          "min": -100,
          "typ": null,
          "max": 100,
          "conditions": "VGS=±8V, VDS=0V",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Gate Resistance",
          "symbol": "Rg",
          "kind": "electrical",
          "unit": "Ω",
          "min": null,
          "typ": 13.1,
          "max": 26.2,
          "conditions": "VDS=0V, VGS=0V, f=1MHz",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Total Gate Charge (-4.5V)",
          "symbol": "Qg",
          "kind": "electrical",
          "unit": "nC",
          "min": null,
          "typ": 5.6,
          "max": 7.8,
          "conditions": "VDS=-15V, VGS=-4.5V, ID=-2A",
          "source_page": 2,
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        {
          "name": "Gate-Source Charge",
          "symbol": "Qgs",
          "kind": "electrical",
          "unit": "nC",
          "min": null,
          "typ": 0.72,
          "max": 1,
          "conditions": "VDS=-15V, VGS=-4.5V, ID=-2A",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Gate-Drain Charge",
          "symbol": "Qgd",
          "kind": "electrical",
          "unit": "nC",
          "min": null,
          "typ": 1.45,
          "max": 2,
          "conditions": "VDS=-15V, VGS=-4.5V, ID=-2A",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Turn-On Delay Time",
          "symbol": "Td(on)",
          "kind": "timing",
          "unit": "ns",
          "min": null,
          "typ": 4,
          "max": 8,
          "conditions": "VDD=-15V, VGS=-4.5V, RG=3.3Ω, ID=-2A",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Rise Time",
          "symbol": "Tr",
          "kind": "timing",
          "unit": "ns",
          "min": null,
          "typ": 25.6,
          "max": 46,
          "conditions": "VDD=-15V, VGS=-4.5V, RG=3.3Ω, ID=-2A",
          "source_page": 2,
          "source": "datasheet"
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        {
          "name": "Turn-Off Delay Time",
          "symbol": "Td(off)",
          "kind": "timing",
          "unit": "ns",
          "min": null,
          "typ": 26,
          "max": 52,
          "conditions": "VDD=-15V, VGS=-4.5V, RG=3.3Ω, ID=-2A",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Fall Time",
          "symbol": "Tf",
          "kind": "timing",
          "unit": "ns",
          "min": null,
          "typ": 12.4,
          "max": 24.8,
          "conditions": "VDD=-15V, VGS=-4.5V, RG=3.3Ω, ID=-2A",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Input Capacitance",
          "symbol": "Ciss",
          "kind": "electrical",
          "unit": "pF",
          "min": null,
          "typ": 332,
          "max": 465,
          "conditions": "VDS=-15V, VGS=0V, f=1MHz",
          "source_page": 2,
          "source": "datasheet"
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        {
          "name": "Output Capacitance",
          "symbol": "Coss",
          "kind": "electrical",
          "unit": "pF",
          "min": null,
          "typ": 48,
          "max": 67,
          "conditions": "VDS=-15V, VGS=0V, f=1MHz",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Reverse Transfer Capacitance",
          "symbol": "Crss",
          "kind": "electrical",
          "unit": "pF",
          "min": null,
          "typ": 42,
          "max": 59,
          "conditions": "VDS=-15V, VGS=0V, f=1MHz",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Continuous Source Current",
          "symbol": "IS",
          "kind": "electrical",
          "unit": "A",
          "min": null,
          "typ": null,
          "max": -2.4,
          "conditions": "VG=VD=0V, Force Current",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Pulsed Source Current",
          "symbol": "ISM",
          "kind": "electrical",
          "unit": "A",
          "min": null,
          "typ": null,
          "max": -10,
          "conditions": "",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Diode Forward Voltage",
          "symbol": "VSD",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": -1.2,
          "conditions": "VGS=0V, IS=-1A, TJ=25℃",
          "source_page": 2,
          "source": "datasheet"
        }
      ]
    }
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  "author": {
    "name": "Ray",
    "email": "[email protected]"
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