IRF9540

{
  "schema_version": 1,
  "type": "component",
  "slug": "irf9540n",
  "title": "IRF9540",
  "brief": "Vishay P-channel power MOSFET, TO-220. -100 V, -23 A, RDS(on) 0.20 ohm. The P-ch complement of IRF540. Datasheet-verified.",
  "version": "0.1.0",
  "license": "CC-BY-SA-4.0",
  "tags": [
    "component",
    "transistor",
    "mosfet",
    "p-channel",
    "power",
    "to-220",
    "vishay"
  ],
  "component": {
    "mpn": "IRF9540",
    "manufacturer": "Vishay Siliconix",
    "package": "TO-220",
    "pin_count": 3,
    "category": "Transistor",
    "subcategory": "P-channel power MOSFET",
    "datasheet": "https://www.vishay.com/docs/91078/91078.pdf",
    "parts": {
      "symbol": "irf9540n.kicad_sym",
      "footprint": "irf9540n.kicad_mod",
      "model_3d": "irf9540n-etched.glb",
      "model_3d_plain": "irf9540n.glb",
      "lbr": "irf9540n.lbr",
      "model_3d_step": "irf9540n-etched.step",
      "model_3d_step_plain": "irf9540n.step"
    },
    "distributor_links": {},
    "pins": [
      {
        "number": "1",
        "name": "G",
        "type": "input",
        "description": "Gate. Insulated MOSFET gate; VGS(th) = -2.0 V to -4.0 V, absolute maximum VGS = ±20 V. Drive to ~-10 V (source-referenced) for full enhancement (RDS(on) = 0.20 Ω); total gate charge Qg = 61 nC."
      },
      {
        "number": "2",
        "name": "D",
        "type": "passive",
        "description": "Drain. Power terminal, internally connected to the mounting tab. VDS breakdown = -100 V, continuous ID = -19 A (TC = 25 °C), pulsed IDM = -72 A. Body diode cathode returns to this pin."
      },
      {
        "number": "3",
        "name": "S",
        "type": "passive",
        "description": "Source. Power return terminal for the P-channel MOSFET; body/source-drain diode anode. Same current rating as drain (-19 A continuous). Reference for VGS drive."
      }
    ],
    "provenance": {
      "extractor": "ds2sf",
      "datasheet": {
        "url": "https://www.vishay.com/docs/91078/91078.pdf",
        "pages": 7,
        "sha256": "e95ccd4f3a9181e0",
        "source_tier": "mfr"
      },
      "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": [
      {
        "file": "irf9540n.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "body on z = 0, through-hole leads below",
        "extents_mm": [
          10.25,
          4.455,
          28.525
        ],
        "zmin_mm": -9.75,
        "centre_offset_mm": 0.932,
        "footprint_binding": "identity",
        "sha256": "7cb065d935df5771f0ba6e48ddd180863a121af76483dad7f18e667a7b68204a",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "irf9540n-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "body on z = 0, through-hole leads below",
        "extents_mm": [
          10.25,
          4.455,
          28.525
        ],
        "zmin_mm": -9.75,
        "centre_offset_mm": 0.932,
        "footprint_binding": "identity",
        "sha256": "dea6df36411646b97cce852198420b6c8afd54910fc5e5322739b01bc0664ca8",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Type": "P-channel power MOSFET",
      "Drain-source (VDS)": "-100 V",
      "Continuous drain current (ID)": "-23 A",
      "RDS(on)": "0.20 Ω at VGS=-10 V",
      "Gate drive": "standard (VGS=-10 V for full on)",
      "Power dissipation": "150 W",
      "Tab": "electrically Drain",
      "Pinout": "G-D-S",
      "Package": "TO-220"
    }
  },
  "sections": [
    "hero",
    "viewers",
    "readme",
    "breadcrumbs",
    "info"
  ],
  "discovery_triggers": [
    "irf9540",
    "p-channel power mosfet",
    "high side switch mosfet",
    "p-channel to-220",
    "irf540 complement"
  ],
  "discovery_pitch": "IRF9540 P-channel power MOSFET (TO-220, -100 V / -23 A) with datasheet-verified pinout, KiCad symbol/footprint/3D, and full provenance.",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
  },
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "irf9540n.kicad_sym",
    "irf9540n.kicad_mod",
    "irf9540n.glb",
    "irf9540n.lbr",
    "docs/hero.png",
    "docs/irf9540n-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "irf9540n-etched.step"
  ],
  "variants": [
    {
      "mpn": "IRF9540PbF (TO-220)",
      "kind": "packaging"
    },
    {
      "mpn": "IRF9540 (TO-220, tube)",
      "kind": "packaging"
    }
  ]
}