GH1881

{
  "slug": "gh1881",
  "version": "0.1.0",
  "type": "component",
  "description": "GoChip Elec Tech Shanghai Hall Switches, TO-92S. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "magnetic sensors",
    "gh1881",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "gh1881.kicad_sym",
    "gh1881.kicad_mod",
    "gh1881.glb",
    "gh1881.step",
    "gh1881.lbr",
    "docs/hero.png",
    "docs/gh1881-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "gh1881-hero.glb",
    "gh1881-hero.overlay.json",
    "gh1881-etched.glb"
  ],
  "component": {
    "mpn": "GH1881",
    "manufacturer": "GoChip Elec Tech Shanghai",
    "package": "TO-92S",
    "pin_count": 3,
    "category": "Magnetic Sensors",
    "subcategory": "Hall Switches",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588891970186465280",
    "parts": {
      "symbol": "gh1881.kicad_sym",
      "footprint": "gh1881.kicad_mod",
      "model_3d": "gh1881-hero.glb",
      "model_3d_plain": "gh1881-etched.glb",
      "model_3d_step": "gh1881-etched.step",
      "model_3d_step_plain": "gh1881.step",
      "lbr": "gh1881.lbr"
    },
    "distributor_links": {
      "lcsc": "C266238"
    },
    "distributor_check": {
      "checked_at": "2026-10-17T21:30:57Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "quota"
      },
      "mouser": {
        "pn": null,
        "status": "quota"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "VDD",
        "type": "power_in",
        "description": "Supply voltage pin; normal operating range is 2.8 to 24 V, with an absolute maximum rating of -0.3 to +28 V."
      },
      {
        "number": "2",
        "name": "GND",
        "type": "power_in",
        "description": "Ground reference pin for the sensor IC."
      },
      {
        "number": "3",
        "name": "VOUT",
        "type": "output",
        "description": "Open-drain output that requires an external pull-up resistor (820 Ω to 100 kΩ, depending on the load current needed); the output sinks up to 50 mA low-level current (IOUTL) with a 32 V off-state breakdown rating."
      }
    ],
    "provenance": {
      "extractor": "extract_pins 0.3",
      "factory_chain": {
        "factory": "2.0.0",
        "extractor": "extract_pins 0.3",
        "primary_model": "claude-haiku-5-5",
        "primary_mode": "text",
        "consensus_model": "claude-sonnet-5-5",
        "consensus": "agreed",
        "guards": "pin_guards 0.1: passed",
        "guard_notes": [
          "extractor flagged: The TO-92S (SIP-3L) pinout is taken from the pin definition table on page 3, which maps the through-; The ordering table text is garbled in the extraction. The UA suffix (GH1881KUA) is the only ordering"
        ],
        "pages_sent": 9,
        "cost_usd": 0.0293,
        "at": "2026-10-17T21:30:44"
      },
      "datasheet": {
        "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588891970186465280",
        "pages": 9,
        "sha256": "f9201ead7b206b3f",
        "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": [
      {
        "file": "gh1881.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "body on z = 0, through-hole leads below",
        "extents_mm": [
          4.83,
          3.745,
          9.8
        ],
        "zmin_mm": -2.5,
        "centre_offset_mm": 0.542,
        "footprint_binding": "identity",
        "sha256": "f0b61c32ecbf0067157adc5a3d4966ceadf5d6dafe93c51af35f76c41c71a54a",
        "checked": "2026-10-17",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "gh1881-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": [
          4.83,
          3.745,
          9.8
        ],
        "zmin_mm": -2.5,
        "centre_offset_mm": 0.542,
        "footprint_binding": "identity",
        "sha256": "09b50ff650986fb2bfd86c63b2eeb04f433851380aaaa0cdd1d2f4a2dd1a8940",
        "checked": "2026-10-17",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}