TC233A

{
  "schema_version": 1,
  "type": "component",
  "slug": "tc233a",
  "title": "TC233A",
  "brief": "Shenzhen Fuman Touch Sensors, SOT-23-6. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.1.0",
  "license": "CC-BY-SA-4.0",
  "tags": [
    "component",
    "sensor",
    "tc233a"
  ],
  "component": {
    "mpn": "TC233A",
    "manufacturer": "Shenzhen Fuman",
    "package": "SOT-23-6",
    "pin_count": 6,
    "category": "Sensor",
    "subcategory": "Touch Sensors",
    "datasheet": "https://wmsc.lcsc.com/wmsc/upload/file/pdf/v2/lcsc/2202251530_Shenzhen-Fuman-Elec-TC233A_C2798022.pdf",
    "parts": {
      "symbol": "tc233a.kicad_sym",
      "footprint": "tc233a.kicad_mod",
      "model_3d": "tc233a-etched.glb",
      "model_3d_plain": "tc233a.glb",
      "model_3d_step": "tc233a-etched.step",
      "model_3d_step_plain": "tc233a.step",
      "lbr": "tc233a.lbr"
    },
    "distributor_links": {},
    "pins": [
      {
        "number": "1",
        "name": "OUT",
        "type": "output",
        "description": "Trigger drive output. Open-drain, active-low; requires external pull-up (typ. 10 kΩ) if internal pull-up is not used. Sink current typ. 26 mA at VDD=4V."
      },
      {
        "number": "2",
        "name": "GND",
        "type": "power_in",
        "description": "Ground / power negative terminal."
      },
      {
        "number": "3",
        "name": "TCH",
        "type": "input",
        "description": "Touch sensing input pin. Connects to the touch pad through a series resistor (R2, 0-5 kΩ, typ. 1 kΩ) with an optional sensitivity-trim cap (C2, 0-47 pF) to GND."
      },
      {
        "number": "4",
        "name": "LHO",
        "type": "input",
        "description": "Output polarity select. Tie to VDD for active-low OUT operation (as described by the datasheet)."
      },
      {
        "number": "5",
        "name": "VDD",
        "type": "power_in",
        "description": "Positive supply. Operating range 2.3V-5.5V (typ. 3V). Decouple with 100 nF (C1) close to the pin."
      },
      {
        "number": "6",
        "name": "OHO",
        "type": "input",
        "description": "Output mode select (One-shot or Hold). Tie to VDD for Hold mode (OUT stays asserted while touched); tie to GND for synchronous / one-shot mode (OUT tracks touch with a 16 s max active-time watchdog)."
      }
    ],
    "provenance": {
      "extractor": "ds2sf",
      "datasheet": {
        "url": "https://wmsc.lcsc.com/wmsc/upload/file/pdf/v2/lcsc/2202251530_Shenzhen-Fuman-Elec-TC233A_C2798022.pdf",
        "pages": 4,
        "sha256": "aa22b7ed6928a34d",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 6,
        "described": 6,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
      {
        "file": "tc233a.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          2.8,
          2.9,
          1.55
        ],
        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "c9fe686b4d1b56927a41fa84a9bc1efb61d8a45a123a3db43bcaa05c2891d635",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "tc233a-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          2.8,
          2.9,
          1.55
        ],
        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "9c9e2ec6617d3524061b4bfd89c42610bf8c10a54dd8824cc093f9065f53b408",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "Shenzhen Fuman",
      "Package": "SOT-23-6",
      "Category": "Sensor",
      "Pins": "6"
    }
  },
  "sections": [
    "hero",
    "viewers",
    "readme",
    "breadcrumbs",
    "info"
  ],
  "discovery_triggers": [
    "tc233a"
  ],
  "discovery_pitch": "TC233A (Shenzhen Fuman) component page with datasheet-verified CAD.",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
  },
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "tc233a.kicad_sym",
    "tc233a.kicad_mod",
    "tc233a.glb",
    "tc233a.step",
    "tc233a.lbr",
    "docs/hero.png",
    "docs/tc233a-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "tc233a-etched.step"
  ],
  "visibility": {
    "public": true
  },
  "updated_at": "2026-09-25T09:21:35.240Z"
}