main
Ray Set visibility: public 18a8b2a 3d ago
{
  "schema_version": 1,
  "type": "component",
  "slug": "hf81gs-z",
  "title": "HF81GS-Z",
  "brief": "Monolithic Power Systems Power Management Specialized - PMIC, SOIC-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.1.0",
  "license": "CC-BY-SA-4.0",
  "tags": [
    "component",
    "power supply chip",
    "hf81gs-z",
    "factory-2.0.0",
    "extractor-text"
  ],
  "component": {
    "mpn": "HF81GS-Z",
    "manufacturer": "Monolithic Power Systems",
    "package": "SOIC-8",
    "pin_count": 8,
    "category": "Power Supply Chip",
    "subcategory": "Power Management Specialized - PMIC",
    "datasheet": "https://datasheet.lcsc.com/datasheet/pdf/b00a6f2d5cd051a9cb60bbc04ca7d41c.pdf",
    "parts": {
      "symbol": "hf81gs-z.kicad_sym",
      "footprint": "hf81gs-z.kicad_mod",
      "model_3d": "hf81gs-z-hero.glb",
      "model_3d_plain": "hf81gs-z-etched.glb",
      "model_3d_step": "hf81gs-z-etched.step",
      "model_3d_step_plain": "hf81gs-z.step",
      "lbr": "hf81gs-z.lbr"
    },
    "distributor_links": {
      "lcsc": "C3192774",
      "digikey": "1589-1016-2-ND",
      "mouser": "946-HF81GSZ"
    },
    "distributor_check": {
      "checked_at": "2026-10-23T09:04:44Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "1589-1016-2-ND",
        "status": "found",
        "lifecycle": "Active"
      },
      "mouser": {
        "pn": "946-HF81GSZ",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "NC",
        "type": "unconnected",
        "description": "Not connected."
      },
      {
        "number": "2",
        "name": "L1",
        "type": "passive",
        "description": "AC Line 1 terminal of the two-terminal bleeder, paired with pin 3 for redundancy; L1-L2 rated up to 1000V."
      },
      {
        "number": "3",
        "name": "L1",
        "type": "passive",
        "description": "AC Line 1 terminal of the two-terminal bleeder, paired with pin 2 for redundancy; L1-L2 rated up to 1000V."
      },
      {
        "number": "4",
        "name": "NC",
        "type": "unconnected",
        "description": "Not connected."
      },
      {
        "number": "5",
        "name": "NC",
        "type": "unconnected",
        "description": "Not connected."
      },
      {
        "number": "6",
        "name": "L2",
        "type": "passive",
        "description": "AC Line 2 terminal of the two-terminal bleeder, paired with pin 7 for redundancy; L1-L2 rated up to 1000V."
      },
      {
        "number": "7",
        "name": "L2",
        "type": "passive",
        "description": "AC Line 2 terminal of the two-terminal bleeder, paired with pin 6 for redundancy; L1-L2 rated up to 1000V."
      },
      {
        "number": "8",
        "name": "NC",
        "type": "unconnected",
        "description": "Not connected."
      }
    ],
    "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",
        "consensus_model": "claude-sonnet-5-5",
        "consensus": "agreed",
        "guards": "pin_guards 0.1: passed",
        "guard_notes": [
          "extractor flagged: L1 and L2 types are set to passive because the part is a two-terminal series switch with no polarity"
        ],
        "pages_sent": 10,
        "cost_usd": 0.0719,
        "at": "2026-10-23T09:04:30"
      },
      "datasheet": {
        "url": "https://datasheet.lcsc.com/datasheet/pdf/b00a6f2d5cd051a9cb60bbc04ca7d41c.pdf",
        "pages": 10,
        "sha256": "e549d110fac46558",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 8,
        "described": 8,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
      {
        "file": "hf81gs-z.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          6,
          4.9,
          1.75
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "07f46cff378d30e6c27dfd5a03092c795323f86d91c71fc7e743f4f418dc553a",
        "checked": "2026-10-23",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "hf81gs-z-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          6,
          4.9,
          1.75
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "9746f276a6d73f26176a0ff85070062af491fcb9f94a7c27187d68604c3c3ce8",
        "checked": "2026-10-23",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "Monolithic Power Systems",
      "Package": "SOIC-8",
      "Category": "Power Supply Chip",
      "Pins": "8"
    },
    "characteristics": {
      "version": 1,
      "source": "datasheet",
      "datasheet_sha256": "e549d110fac46558bc573315af58933bfef3fce1a8834698167ba9b5a6ef910d",
      "rows": [
        {
          "name": "L1-L2 Pin Voltage",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 1000,
          "conditions": "",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Storage Temperature",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": -65,
          "typ": null,
          "max": 150,
          "conditions": "",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Continuous Power Dissipation",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "W",
          "min": null,
          "typ": null,
          "max": 1.4,
          "conditions": "TA = +25°C",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Single Avalanche Energy",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "μJ",
          "min": null,
          "typ": null,
          "max": 70,
          "conditions": "L=5mH, Vgs=10V, VDD=1.4V",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Junction Temperature",
          "symbol": "TJ",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": null,
          "typ": null,
          "max": 150,
          "conditions": "",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Operating Junction Temperature",
          "symbol": "TJ",
          "kind": "recommended_operating",
          "unit": "°C",
          "min": -40,
          "typ": null,
          "max": 125,
          "conditions": "",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Junction-to-Ambient Thermal Resistance",
          "symbol": "θJA",
          "kind": "thermal",
          "unit": "°C/W",
          "min": null,
          "typ": 90,
          "max": null,
          "conditions": "SOIC8, JESD51-7 4-layer PCB",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Junction-to-Case Thermal Resistance",
          "symbol": "θJC",
          "kind": "thermal",
          "unit": "°C/W",
          "min": null,
          "typ": 45,
          "max": null,
          "conditions": "SOIC8, JESD51-7 4-layer PCB",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "AC Removal Detection Time",
          "symbol": "tDETECT",
          "kind": "electrical",
          "unit": "ms",
          "min": null,
          "typ": 25,
          "max": null,
          "conditions": "Line Cycle Frequency 47 to 63Hz",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Saturation Current",
          "symbol": "ISC",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": 3,
          "max": null,
          "conditions": "L1-L2 voltage from 110V to 410V",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Supply Current",
          "symbol": "ISUPPLY",
          "kind": "electrical",
          "unit": "μA",
          "min": null,
          "typ": 15,
          "max": null,
          "conditions": "L1-L2 voltage 1000V",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "UVLO",
          "symbol": "V_OFF_L1/L2",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": 3.7,
          "max": null,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        }
      ]
    }
  },
  "variants": [],
  "sections": [
    "hero",
    "viewers",
    "readme",
    "breadcrumbs",
    "info"
  ],
  "discovery_triggers": [
    "hf81gs-z"
  ],
  "discovery_pitch": "HF81GS-Z (Monolithic Power Systems) component page: datasheet pinout, KiCad symbol, footprint and 3D.",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
  },
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
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    "README.md",
    "hf81gs-z.kicad_sym",
    "hf81gs-z.kicad_mod",
    "hf81gs-z.glb",
    "hf81gs-z.step",
    "hf81gs-z.lbr",
    "docs/hero.png",
    "docs/hf81gs-z-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "hf81gs-z-hero.glb",
    "hf81gs-z-hero.overlay.json",
    "hf81gs-z-etched.glb"
  ],
  "visibility": {
    "public": true
  }
}