AF2041

{
  "schema_version": 1,
  "type": "component",
  "slug": "af2041",
  "title": "AF2041",
  "brief": "Sam wing 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",
    "af2041"
  ],
  "component": {
    "mpn": "AF2041",
    "manufacturer": "Sam wing",
    "package": "SOT-23-6",
    "pin_count": 6,
    "category": "Sensor",
    "subcategory": "Touch Sensors",
    "datasheet": "https://wmsc.lcsc.com/wmsc/upload/file/pdf/v2/lcsc/2302061809_Sam-wing-AF2041_C5354729.pdf",
    "parts": {
      "symbol": "af2041.kicad_sym",
      "footprint": "af2041.kicad_mod",
      "model_3d": "af2041-etched.glb",
      "model_3d_plain": "af2041.glb",
      "model_3d_step": "af2041-etched.step",
      "model_3d_step_plain": "af2041.step",
      "lbr": "af2041.lbr"
    },
    "distributor_links": {},
    "pins": [
      {
        "number": "1",
        "name": "OUT",
        "type": "output",
        "description": "Touch key sense output. Drives the detection result; polarity (active-high or active-low) is selected by VGM, and behavior (direct/synchronous vs. latched/hold) is selected by TBM. Sink capability 20 mA at Vol=0.3·VDD; source capability 10 mA at Voh=0.7·VDD."
      },
      {
        "number": "2",
        "name": "GND",
        "type": "power_in",
        "description": "Ground / negative supply reference."
      },
      {
        "number": "3",
        "name": "KEY",
        "type": "input",
        "description": "Capacitive touch sense input. Connect through a 1 kΩ series resistor (R1, recommended 0-5 kΩ) to the touch pad. An optional CSEL capacitor (0-50 pF) to GND adjusts sensitivity; larger CSEL lowers sensitivity. Minimum detectable delta capacitance 0.2 pF."
      },
      {
        "number": "4",
        "name": "VGM",
        "type": "input",
        "description": "Output polarity select. VGM tied high → OUT is active-low (idle high, asserted low on touch). VGM tied low (or floating) → OUT is active-high (idle low, asserted high on touch). Default state assumed 0 (active-high)."
      },
      {
        "number": "5",
        "name": "VDD",
        "type": "power_in",
        "description": "Positive supply input, 2.3 V to 5.5 V (typ 3 V). Standby current ~2.5 µA at 3 V. Decouple with a 100 nF (104) capacitor placed as close to VDD as possible. Absolute max supply -0.3 V to +5.5 V."
      },
      {
        "number": "6",
        "name": "TBM",
        "type": "input",
        "description": "Hold/sync mode select. TBM tied high → OUT operates in hold (toggle/latched) mode. TBM tied low → OUT operates in synchronous (direct) mode; in this mode an internal 64 s timeout returns the output to idle. Default state assumed 0 (synchronous)."
      }
    ],
    "provenance": {
      "extractor": "ds2sf",
      "datasheet": {
        "url": "https://wmsc.lcsc.com/wmsc/upload/file/pdf/v2/lcsc/2302061809_Sam-wing-AF2041_C5354729.pdf",
        "pages": 8,
        "sha256": "d68306b735dc5474",
        "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": "af2041.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": "af2041-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": "58aacbf92c84e159aa754edb59896b2cda8ef3673c939522ac52e7f8f200ac4d",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "Sam wing",
      "Package": "SOT-23-6",
      "Category": "Sensor",
      "Pins": "6"
    }
  },
  "sections": [
    "hero",
    "viewers",
    "readme",
    "breadcrumbs",
    "info"
  ],
  "discovery_triggers": [
    "af2041"
  ],
  "discovery_pitch": "AF2041 (Sam wing) 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",
    "af2041.kicad_sym",
    "af2041.kicad_mod",
    "af2041.glb",
    "af2041.step",
    "af2041.lbr",
    "docs/hero.png",
    "docs/af2041-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "af2041-etched.step"
  ],
  "visibility": {
    "public": true
  },
  "updated_at": "2026-09-24T16:05:36.385Z"
}