CH410K

{
  "schema_version": 1,
  "type": "component",
  "slug": "ch410k",
  "title": "CH410K",
  "brief": "WCH Jiangsu Qin Heng Supervisor and Reset ICs, SOT-363. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.2.0",
  "license": "CC-BY-SA-4.0",
  "tags": [
    "component",
    "pmic",
    "ch410k"
  ],
  "component": {
    "mpn": "CH410K",
    "manufacturer": "WCH Jiangsu Qin Heng",
    "package": "SOT-363",
    "pin_count": 6,
    "category": "PMIC",
    "subcategory": "Supervisor and Reset ICs",
    "datasheet": "https://datasheet.lcsc.com/datasheet/pdf/2b4279d06365ee9dc7fd9f59b1b4ede4.pdf",
    "parts": {
      "symbol": "ch410k.kicad_sym",
      "footprint": "ch410k.kicad_mod",
      "model_3d": "ch410k-etched.glb",
      "model_3d_plain": "ch410k.glb",
      "model_3d_step": "ch410k-etched.step",
      "model_3d_step_plain": "ch410k.step",
      "lbr": "ch410k.lbr"
    },
    "distributor_links": {},
    "pins": [
      {
        "number": "1",
        "name": "HV",
        "type": "input",
        "description": "Threshold voltage select (analog input). Leave floating (do NOT tie to GND) to select the 2.3 V low-voltage threshold; short to VCC to select the 3.0 V high-voltage threshold. Internal comparator is non-precision with some spread."
      },
      {
        "number": "2",
        "name": "GND",
        "type": "power_in",
        "description": "Common ground / return."
      },
      {
        "number": "3",
        "name": "RSTH",
        "type": "output",
        "description": "Active-HIGH power-on / low-voltage reset output, push-pull. Held high during power-up and brown-out, switches low after the Trhd delay (typ 20 ms) once VCC is above threshold. Drives 5 mA VOH ≥ VCC-0.5 V / 8 mA VOL ≤ 0.5 V."
      },
      {
        "number": "4",
        "name": "RSTL",
        "type": "output",
        "description": "Active-LOW power-on / low-voltage reset output, open-drain. Pulled low during power-up and brown-out, releases to Hi-Z after the Trld delay (typ 40 ms). Typically needs an external pull-up (e.g. to VOUT) when driving an MCU active-low RESET."
      },
      {
        "number": "5",
        "name": "VCC",
        "type": "power_in",
        "description": "Positive supply input, monitored rail. Operating range 1.0 V to 5.3 V (absolute max 6.0 V). External decoupling capacitor is recommended to be at least 5× the VOUT load capacitor."
      },
      {
        "number": "6",
        "name": "VOUT",
        "type": "power_out",
        "description": "Switched power output, push-pull, with built-in low-voltage discharge. Turns on Tvd (typ 5 ms) after VCC crosses the threshold and discharges within ~0.02 µs of VCC dropping below threshold. Supplies up to 40 mA with a ~35-60 mV drop from VCC; supports 0.1-10 µF load cap. Also usable as an active-low reset output."
      }
    ],
    "provenance": {
      "extractor": "ds2sf",
      "datasheet": {
        "url": "https://datasheet.lcsc.com/datasheet/pdf/2b4279d06365ee9dc7fd9f59b1b4ede4.pdf",
        "pages": 4,
        "sha256": "f072610f7f5e707b",
        "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": "ch410k.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          2.1,
          2,
          1.1
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "045cc95e18ee7a13d1623c3ce6604fc833049bdb4f952f68c26e3c5767d122e4",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "ch410k-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          2.1,
          2,
          1.1
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "ebf5c31977ff5efe25a6ac145cfaa653f10e0c22bc04b6005278caf1013ed63c",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "WCH Jiangsu Qin Heng",
      "Package": "SOT-363",
      "Category": "PMIC",
      "Pins": "6"
    }
  },
  "sections": [
    "hero",
    "viewers",
    "readme",
    "breadcrumbs",
    "info"
  ],
  "discovery_triggers": [
    "ch410k"
  ],
  "discovery_pitch": "CH410K (WCH Jiangsu Qin Heng) component page with datasheet-verified CAD.",
  "author": {
    "name": "Ray"
  },
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "ch410k.kicad_sym",
    "ch410k.kicad_mod",
    "ch410k.glb",
    "ch410k.step",
    "ch410k-etched.step",
    "ch410k.lbr",
    "docs/hero.png",
    "docs/ch410k-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html"
  ],
  "visibility": {
    "public": true
  },
  "variants": [
    {
      "mpn": "CH410K",
      "kind": "packaging"
    }
  ],
  "updated_at": "2026-09-24T19:01:01.167Z"
}