main
Ray Set visibility: public e892c89 17d ago
{
  "schema_version": 1,
  "type": "component",
  "slug": "as3423b",
  "title": "AS3423B",
  "brief": "FMS Formosa Microsemi MOSFETs, SOT-23-3L. 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",
    "as3423b",
    "factory-2.0.0",
    "extractor-text"
  ],
  "component": {
    "mpn": "AS3423B",
    "manufacturer": "FMS Formosa Microsemi",
    "package": "SOT-23-3L",
    "pin_count": 3,
    "category": "Transistors/Thyristors",
    "subcategory": "MOSFETs",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588884159481712640",
    "parts": {
      "symbol": "as3423b.kicad_sym",
      "footprint": "as3423b.kicad_mod",
      "model_3d": "as3423b-hero.glb",
      "model_3d_plain": "as3423b-etched.glb",
      "model_3d_step": "as3423b-etched.step",
      "model_3d_step_plain": "as3423b.step",
      "lbr": "as3423b.lbr"
    },
    "distributor_links": {
      "lcsc": "C341542"
    },
    "distributor_check": {
      "checked_at": "2026-10-18T07:48:10Z",
      "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; gate-source voltage limited to ±10 V, with threshold VGS(th) of -0.5 V to -1.5 V at ID = -250µA."
      },
      {
        "number": "2",
        "name": "S",
        "type": "passive",
        "description": "Source of the P-channel MOSFET, connected to the body diode anode; continuous drain current is -3 A."
      },
      {
        "number": "3",
        "name": "D",
        "type": "passive",
        "description": "Drain; drain-source voltage rated -20 V, continuous drain current -3 A, pulsed -10 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 package drawing on page 1 labels the pins D (top, single pin), G (bottom left) and S (bottom rig",
          "vision extraction: provenance cannot be text-verified; needs consensus"
        ],
        "pages_sent": 3,
        "cost_usd": 0.1624,
        "at": "2026-10-18T07:46:53"
      },
      "datasheet": {
        "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588884159481712640",
        "pages": 3,
        "sha256": "f17e41fed972144a",
        "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": [
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        "file": "as3423b.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
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          3,
          1.2
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "16964b14f93e6c778288a0c110b35f670fab733109c26f0da7dfc07cc3350040",
        "checked": "2026-10-18",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "as3423b-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
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        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "ba86852b63a7d4fbc09e80386258ada2bf98cc34175cc718e16920ae24a13df3",
        "checked": "2026-10-18",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "FMS Formosa Microsemi",
      "Package": "SOT-23-3L",
      "Category": "Transistors/Thyristors",
      "Pins": "3"
    },
    "characteristics": {
      "version": 1,
      "source": "datasheet",
      "datasheet_sha256": "f17e41fed972144aa59d8eea1cd37ec901896777f3fdab0750646f6f6b2654b7",
      "rows": [
        {
          "name": "Drain-Source Voltage",
          "symbol": "VDS",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": -20,
          "conditions": "Ta=25℃ unless otherwise noted",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Gate-Source Voltage",
          "symbol": "VGS",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -10,
          "typ": null,
          "max": 10,
          "conditions": "Ta=25℃ unless otherwise noted",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Continuous Drain Current",
          "symbol": "ID",
          "kind": "absolute_maximum",
          "unit": "A",
          "min": null,
          "typ": null,
          "max": -3,
          "conditions": "Ta=25℃ unless otherwise noted",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Pulsed Drain Current",
          "symbol": "IDM",
          "kind": "absolute_maximum",
          "unit": "A",
          "min": null,
          "typ": null,
          "max": -10,
          "conditions": "Ta=25℃ unless otherwise noted",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Power Dissipation",
          "symbol": "PD",
          "kind": "absolute_maximum",
          "unit": "W",
          "min": null,
          "typ": null,
          "max": 1,
          "conditions": "Ta=25℃ unless otherwise noted",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Junction Temperature",
          "symbol": "TJ",
          "kind": "absolute_maximum",
          "unit": "℃",
          "min": null,
          "typ": null,
          "max": 150,
          "conditions": "Ta=25℃ unless otherwise noted",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Storage Temperature",
          "symbol": "TSTG",
          "kind": "absolute_maximum",
          "unit": "℃",
          "min": -55,
          "typ": null,
          "max": 150,
          "conditions": "Ta=25℃ unless otherwise noted",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Drain-source breakdown voltage",
          "symbol": "V(BR)DSS",
          "kind": "electrical",
          "unit": "V",
          "min": -20,
          "typ": null,
          "max": null,
          "conditions": "VGS = 0V, ID =-250µA",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Zero gate voltage drain current",
          "symbol": "IDSS",
          "kind": "electrical",
          "unit": "µA",
          "min": null,
          "typ": null,
          "max": -1,
          "conditions": "VDS =-16V, VGS = 0V",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Gate-body leakage current",
          "symbol": "IGSS",
          "kind": "electrical",
          "unit": "nA",
          "min": -100,
          "typ": null,
          "max": 100,
          "conditions": "VGS =±10V, VDS = 0V",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Gate threshold voltage",
          "symbol": "VGS(th)",
          "kind": "electrical",
          "unit": "V",
          "min": -0.5,
          "typ": null,
          "max": -1.5,
          "conditions": "VDS =VGS, ID =-250µA",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Drain-source on-resistance (VGS=-4.5V)",
          "symbol": "RDS(on)",
          "kind": "electrical",
          "unit": "mΩ",
          "min": null,
          "typ": 70,
          "max": 90,
          "conditions": "VGS =-4.5V, ID =-3A",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Drain-source on-resistance (VGS=-2.5V)",
          "symbol": "RDS(on)",
          "kind": "electrical",
          "unit": "mΩ",
          "min": null,
          "typ": 90,
          "max": 110,
          "conditions": "VGS =-2.5V, ID =-2A",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Diode forward voltage",
          "symbol": "VDS",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": -1.5,
          "conditions": "VGS =0V, IS=-0.75A",
          "source_page": 2,
          "source": "datasheet"
        }
      ]
    }
  },
  "variants": [],
  "sections": [
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    "viewers",
    "readme",
    "breadcrumbs",
    "info"
  ],
  "discovery_triggers": [
    "as3423b"
  ],
  "discovery_pitch": "AS3423B (FMS Formosa Microsemi) component page: datasheet pinout, KiCad symbol, footprint and 3D.",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
  },
  "dependencies": {},
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    "path": "docs/hero.png"
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    "as3423b.step",
    "as3423b.lbr",
    "docs/hero.png",
    "docs/as3423b-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "as3423b-hero.glb",
    "as3423b-hero.overlay.json",
    "as3423b-etched.glb"
  ],
  "visibility": {
    "public": true
  }
}