AO3442

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  "slug": "ao3442",
  "title": "AO3442",
  "brief": "Alpha Omega 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",
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    "manufacturer": "Alpha Omega Semicon",
    "package": "SOT-23",
    "pin_count": 3,
    "category": "Transistors/Thyristors",
    "subcategory": "MOSFETs",
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      "digikey": "785-1461-2-ND"
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        "lifecycle": "Not For New Designs"
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        "pn": null,
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      {
        "number": "1",
        "name": "G",
        "type": "input",
        "description": "Gate; gate-source voltage limited to ±20 V, with VGS(th) of 1.7 V min, 2.3 V typ and 2.9 V max at ID=250µA."
      },
      {
        "number": "2",
        "name": "S",
        "type": "passive",
        "description": "Source; body-diode continuous current is 1 A and junction-to-lead thermal resistance is 63 °C/W typ (80 max)."
      },
      {
        "number": "3",
        "name": "D",
        "type": "passive",
        "description": "Drain; drain-source voltage is 100 V max, continuous current is 1 A at TA=25°C and pulsed current is 4 A."
      }
    ],
    "provenance": {
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        "guards": "pin_guards 0.1: passed",
        "guard_notes": [
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          "vision extraction: provenance cannot be text-verified; needs consensus"
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        "cost_usd": 0.1333,
        "at": "2026-10-09T14:36:14"
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      "pins": {
        "total": 3,
        "described": 3,
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        "refuses_to_fabricate": true
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    },
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      "footprint": "viewers/footprint.html"
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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": "2026-10-09",
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  },
  "metadata": {
    "specs": {
      "Manufacturer": "Alpha Omega Semicon",
      "Package": "SOT-23",
      "Category": "Transistors/Thyristors",
      "Pins": "3"
    },
    "characteristics": {
      "version": 1,
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          "name": "Drain-Source Voltage",
          "symbol": "VDS",
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          "unit": "V",
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          "typ": null,
          "max": 100,
          "conditions": "",
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        {
          "name": "Gate-Source Voltage",
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          "typ": null,
          "max": 20,
          "conditions": "",
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        {
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        },
        {
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          "max": 4,
          "conditions": "",
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        },
        {
          "name": "Power Dissipation",
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          "unit": "W",
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          "name": "Power Dissipation",
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          "typ": null,
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        },
        {
          "name": "Junction and Storage Temperature Range",
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          "unit": "°C",
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          "conditions": "",
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          "source": "datasheet"
        },
        {
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        },
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          "kind": "electrical",
          "unit": "µA",
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          "typ": null,
          "max": 5,
          "conditions": "TJ=55°C",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Gate-Body Leakage Current",
          "symbol": "IGSS",
          "kind": "electrical",
          "unit": "nA",
          "min": -100,
          "typ": null,
          "max": 100,
          "conditions": "VDS=0V, VGS=±20V",
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          "source": "datasheet"
        },
        {
          "name": "Gate Threshold Voltage",
          "symbol": "VGS(th)",
          "kind": "electrical",
          "unit": "V",
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          "conditions": "VDS=VGS, ID=250µA",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "On State Drain Current",
          "symbol": "ID(ON)",
          "kind": "electrical",
          "unit": "A",
          "min": 4,
          "typ": null,
          "max": null,
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          "source": "datasheet"
        },
        {
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          "unit": "mΩ",
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        {
          "name": "Static Drain-Source On-Resistance",
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          "kind": "electrical",
          "unit": "mΩ",
          "min": null,
          "typ": 983,
          "max": 1200,
          "conditions": "TJ=125°C",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Static Drain-Source On-Resistance",
          "symbol": "RDS(ON)",
          "kind": "electrical",
          "unit": "mΩ",
          "min": null,
          "typ": 554,
          "max": 720,
          "conditions": "VGS=4.5V, ID=0.8A",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Diode Forward Voltage",
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          "max": 1.2,
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          "source": "datasheet"
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        {
          "name": "Maximum Body-Diode Continuous Current",
          "symbol": "IS",
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          "unit": "A",
          "min": null,
          "typ": null,
          "max": 1,
          "conditions": "",
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        {
          "name": "Gate Resistance",
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          "kind": "electrical",
          "unit": "Ω",
          "min": 2.5,
          "typ": 5,
          "max": 7.5,
          "conditions": "VGS=0V, VDS=0V, f=1MHz",
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        },
        {
          "name": "Total Gate Charge",
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          "unit": "nC",
          "min": null,
          "typ": 2.8,
          "max": 6,
          "conditions": "VGS=10V, VDS=50V, ID=1A",
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          "source": "datasheet"
        },
        {
          "name": "Total Gate Charge",
          "symbol": "Qg (4.5V)",
          "kind": "electrical",
          "unit": "nC",
          "min": null,
          "typ": 1.5,
          "max": 3,
          "conditions": "VGS=4.5V",
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        },
        {
          "name": "Maximum Junction-to-Ambient",
          "symbol": "RθJA",
          "kind": "thermal",
          "unit": "°C/W",
          "min": null,
          "typ": 70,
          "max": 90,
          "conditions": "",
          "source_page": 1,
          "source": "datasheet"
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      ]
    }
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    "name": "Ray",
    "email": "[email protected]"
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