CH444NTB

{
  "slug": "ch444ntb",
  "version": "0.1.0",
  "type": "component",
  "description": "COSEMITECH Hall Switches, TO-92S. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "magnetic sensors",
    "ch444ntb",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "ch444ntb.kicad_sym",
    "ch444ntb.kicad_mod",
    "ch444ntb.glb",
    "ch444ntb.step",
    "ch444ntb.lbr",
    "docs/hero.png",
    "docs/ch444ntb-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "ch444ntb-hero.glb",
    "ch444ntb-hero.overlay.json",
    "ch444ntb-etched.glb"
  ],
  "component": {
    "mpn": "CH444NTB",
    "manufacturer": "COSEMITECH",
    "package": "TO-92S",
    "pin_count": 3,
    "category": "Magnetic Sensors",
    "subcategory": "Hall Switches",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588945178166243328",
    "parts": {
      "symbol": "ch444ntb.kicad_sym",
      "footprint": "ch444ntb.kicad_mod",
      "model_3d": "ch444ntb-hero.glb",
      "model_3d_plain": "ch444ntb-etched.glb",
      "model_3d_step": "ch444ntb-etched.step",
      "model_3d_step_plain": "ch444ntb.step",
      "lbr": "ch444ntb.lbr"
    },
    "distributor_links": {
      "lcsc": "C2879977"
    },
    "distributor_check": {
      "checked_at": "2026-10-17T22:57:49Z",
      "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; the on-board regulator supports 2.5 V to 22 V, with absolute maximum VDD of 24 V and reverse voltage of -22 V."
      },
      {
        "number": "2",
        "name": "GND",
        "type": "power_in",
        "description": "Ground pin; the device is protected when VCC and GND are reversed, up to -22 V."
      },
      {
        "number": "3",
        "name": "OUT",
        "type": "output",
        "description": "Open-drain NMOS output that pulls low when the field exceeds BOP, rated to sink up to 25 mA with output voltage limited to -0.3 V to 24 V and short-circuit current limited to 30 to 90 mA."
      }
    ],
    "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: Output current rating is inconsistent in the datasheet: Absolute Maximum Ratings and Section 1 give ; The TO-92S pin mapping was read from a three-column table (SOT-23-3L, TO-92S, SOT-89-3L) in plain te"
        ],
        "pages_sent": 15,
        "cost_usd": 0.0536,
        "at": "2026-10-17T22:55:53"
      },
      "datasheet": {
        "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588945178166243328",
        "pages": 15,
        "sha256": "bb180a03995d8124",
        "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": "ch444ntb.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": "ch444ntb-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": "28822f5602ae601db5df77b37d8337a35a4ea50e53f7dd1a7373841e5f791cc5",
        "checked": "2026-10-17",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}