DK100R05ST

{
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  "type": "component",
  "slug": "dk100r05st",
  "title": "DK100R05ST",
  "brief": "Shenzhen DongKe Semicon DC-DC Converters, TO-220F-3. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.1.0",
  "license": "CC-BY-SA-4.0",
  "tags": [
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    "power supply chip",
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  "component": {
    "mpn": "DK100R05ST",
    "manufacturer": "Shenzhen DongKe Semicon",
    "package": "TO-220F-3",
    "pin_count": 3,
    "category": "Power Supply Chip",
    "subcategory": "DC-DC Converters",
    "datasheet": "https://datasheet.lcsc.com/datasheet/pdf/4d2d9dc4212d09024afe9269e6edea65.pdf",
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      "lbr": "dk100r05st.lbr",
      "model_3d_plain": "dk100r05st.glb"
    },
    "distributor_links": {
      "lcsc": "C3010395"
    },
    "distributor_check": {
      "checked_at": "2026-10-23T12:45:08Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "no match"
      },
      "mouser": {
        "pn": null,
        "status": "no match"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "NC",
        "type": "unconnected",
        "description": "Not connected (floating) pin."
      },
      {
        "number": "2",
        "name": "K",
        "type": "passive",
        "description": "Cathode: connects in the application like the cathode of a diode, and is the reference for the NMOS turn-on voltage (VON = -220 mV typ.) with 100V maximum NMOS drain-source breakdown."
      },
      {
        "number": "3",
        "name": "A",
        "type": "passive",
        "description": "Anode: connects in the application like the anode of a diode, and is the reference point for the datasheet's supply voltage thresholds (VCC_ON 7.2 V, VCC_OFF 3.3 V, VOVP 10 V)."
      }
    ],
    "provenance": {
      "extractor": "extract_pins 0.3",
      "factory_chain": {
        "factory": "2.0.0",
        "extractor": "extract_pins 0.3",
        "primary_model": "claude-sonnet-5-5",
        "primary_mode": "text",
        "consensus_model": "claude-sonnet-5-5",
        "consensus": "agreed",
        "guards": "pin_guards 0.1: passed",
        "guard_notes": [
          "extractor flagged: The datasheet is for DK5V100R05ST1, while the requested MPN is DK100R05ST. They are assumed to be th; The datasheet gives no electrical pin type for A and K. They are classed as passive because the part"
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        "cost_usd": 0.0429,
        "at": "2026-10-23T12:45:01"
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        "pages": 7,
        "sha256": "1928d7f03cb30a24",
        "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"
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    "models_3d": [
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        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "body on z = 0, through-hole leads below",
        "extents_mm": [
          10.16,
          4.7,
          28.85
        ],
        "zmin_mm": -9.75,
        "centre_offset_mm": 0.935,
        "footprint_binding": "identity",
        "sha256": "7f1d530d2b80afd7cfb6522420bdcf9d79666f9bf84bbc5b905bfc33593c7ef0",
        "checked": "2026-10-23",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "Shenzhen DongKe Semicon",
      "Package": "TO-220F-3",
      "Category": "Power Supply Chip",
      "Pins": "3"
    },
    "characteristics": {
      "version": 1,
      "source": "datasheet",
      "datasheet_sha256": "1928d7f03cb30a240c89769b219d006325e821112c9d7a050f88879b9eea3b68",
      "rows": [
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          "name": "NMOS drain-source breakdown voltage",
          "symbol": "V(BR)DSS",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 100,
          "conditions": "",
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        {
          "name": "NMOS max continuous current",
          "symbol": "IDSCDC",
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          "unit": "A",
          "min": null,
          "typ": null,
          "max": 60,
          "conditions": "",
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        {
          "name": "NMOS max peak current",
          "symbol": "IDSPDC",
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          "min": null,
          "typ": null,
          "max": 200,
          "conditions": "",
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          "source": "datasheet"
        },
        {
          "name": "Power dissipation TO220",
          "symbol": "PDMAX",
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          "unit": "W",
          "min": null,
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          "max": 33,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Storage temperature range",
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          "unit": "°C",
          "min": -55,
          "typ": null,
          "max": 155,
          "conditions": "",
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        },
        {
          "name": "Junction operating temperature range",
          "symbol": "TJ",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": -40,
          "typ": null,
          "max": 150,
          "conditions": "",
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        },
        {
          "name": "Soldering temperature",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": null,
          "typ": null,
          "max": 260,
          "conditions": "5 s",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Thermal resistance junction to ambient",
          "symbol": "RθJA",
          "kind": "thermal",
          "unit": "℃/W",
          "min": null,
          "typ": 62.5,
          "max": null,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Thermal resistance junction to case",
          "symbol": "RθJC",
          "kind": "thermal",
          "unit": "℃/W",
          "min": null,
          "typ": 3.8,
          "max": null,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Chip start-up voltage",
          "symbol": "VCC_ON",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": 7.2,
          "max": null,
          "conditions": "TA = 25℃, referenced to A",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Undervoltage protection threshold",
          "symbol": "VCC_OFF",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": 3.3,
          "max": null,
          "conditions": "TA = 25℃, referenced to A",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Overvoltage protection threshold",
          "symbol": "VOVP",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": 10,
          "max": null,
          "conditions": "TA = 25℃, referenced to A",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "NMOS turn-on voltage",
          "symbol": "VON",
          "kind": "electrical",
          "unit": "mV",
          "min": null,
          "typ": -220,
          "max": null,
          "conditions": "K pin as reference",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "NMOS turn-on delay",
          "symbol": "TDON",
          "kind": "timing",
          "unit": "ns",
          "min": null,
          "typ": 150,
          "max": null,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "NMOS turn-off delay",
          "symbol": "TDOFF",
          "kind": "timing",
          "unit": "ns",
          "min": null,
          "typ": 50,
          "max": null,
          "conditions": "",
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          "source": "datasheet"
        },
        {
          "name": "NMOS max on-time",
          "symbol": "TON_MAX",
          "kind": "timing",
          "unit": "μs",
          "min": null,
          "typ": 20,
          "max": null,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "NMOS min on-time",
          "symbol": "TON_MIN",
          "kind": "timing",
          "unit": "ns",
          "min": null,
          "typ": 200,
          "max": null,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "NMOS min off-time",
          "symbol": "TOFF_MIN",
          "kind": "timing",
          "unit": "ns",
          "min": null,
          "typ": 500,
          "max": null,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Dead time",
          "symbol": "TD",
          "kind": "timing",
          "unit": "ns",
          "min": null,
          "typ": 400,
          "max": null,
          "conditions": "auto-adjusted from K pin fluctuation",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Max operating frequency",
          "symbol": "FS_MAX",
          "kind": "timing",
          "unit": "KHz",
          "min": null,
          "typ": 150,
          "max": null,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "NMOS on-resistance",
          "symbol": "RDS_ON",
          "kind": "electrical",
          "unit": "mΩ",
          "min": null,
          "typ": 5,
          "max": null,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        }
      ]
    }
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  "discovery_triggers": [
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  "discovery_pitch": "DK100R05ST (Shenzhen DongKe Semicon) component page: datasheet pinout, KiCad symbol, footprint and 3D.",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
  },
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}