main
Ray Set visibility: public bfef2cb 8d ago
{
  "schema_version": 1,
  "type": "component",
  "slug": "bct1812euk-tr",
  "title": "BCT1812EUK-TR",
  "brief": "BROADCHIP DC-DC Converters, SOT-23-5. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.1.0",
  "license": "CC-BY-SA-4.0",
  "tags": [
    "component",
    "power supply chip",
    "bct1812euk-tr",
    "factory-2.0.0",
    "extractor-text"
  ],
  "component": {
    "mpn": "BCT1812EUK-TR",
    "manufacturer": "BROADCHIP",
    "package": "SOT-23-5",
    "pin_count": 5,
    "category": "Power Supply Chip",
    "subcategory": "DC-DC Converters",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8590222496235753472",
    "parts": {
      "symbol": "bct1812euk-tr.kicad_sym",
      "footprint": "bct1812euk-tr.kicad_mod",
      "model_3d": "bct1812euk-tr-hero.glb",
      "model_3d_plain": "bct1812euk-tr-etched.glb",
      "model_3d_step": "bct1812euk-tr-etched.step",
      "model_3d_step_plain": "bct1812euk-tr.step",
      "lbr": "bct1812euk-tr.lbr"
    },
    "distributor_links": {
      "lcsc": "C2887839"
    },
    "distributor_check": {
      "checked_at": "2026-10-18T07:26:48Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "no match"
      },
      "mouser": {
        "pn": null,
        "status": "no match"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "EN",
        "type": "input",
        "description": "Drive EN high to turn on the regulator and low to turn off the regulator; EN rising threshold is 1.5V (typ) and falling threshold is 0.4V (typ)."
      },
      {
        "number": "2",
        "name": "GND",
        "type": "power_in",
        "description": "Power ground pin."
      },
      {
        "number": "3",
        "name": "SW",
        "type": "output",
        "description": "Power switching output that connects the inductor to the drains of the internal high-side PMOS and low-side NMOS."
      },
      {
        "number": "4",
        "name": "VIN",
        "type": "power_in",
        "description": "Power supply input with a 2.5V to 5.5V input voltage range, which must be closely decoupled to GND with a 4.7µF or greater ceramic capacitor."
      },
      {
        "number": "5",
        "name": "FB",
        "type": "input",
        "description": "Output feedback pin that senses the output voltage and is regulated by the control loop to 0.6V (VFB 0.585V to 0.615V), with a resistive divider connected at FB."
      }
    ],
    "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: The PIN CONFIGURATION top-view drawing on page 2 is garbled in the text extraction, so the physical "
        ],
        "pages_sent": 8,
        "cost_usd": 0.0344,
        "at": "2026-10-18T07:25:10"
      },
      "datasheet": {
        "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8590222496235753472",
        "pages": 8,
        "sha256": "916f30d27c5fe20a",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 5,
        "described": 5,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
      {
        "file": "bct1812euk-tr.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,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "720a6eab0024069bbee68e7cb4c3ff1149468a34611225cdc852662c5d0ec2b7",
        "checked": "2026-10-18",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "bct1812euk-tr-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,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "4f2f2c54e2fb0b665ea95231f1c20a9a55ca596e1dcdc9322dbe77b7f972c72a",
        "checked": "2026-10-18",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "BROADCHIP",
      "Package": "SOT-23-5",
      "Category": "Power Supply Chip",
      "Pins": "5"
    },
    "characteristics": {
      "version": 1,
      "source": "datasheet",
      "datasheet_sha256": "916f30d27c5fe20a8a393a56f3ef8b85861cc97bfde6cad333ebddeaee521612",
      "rows": [
        {
          "name": "VIN Input Supply Voltage",
          "symbol": "VIN",
          "kind": "electrical",
          "unit": "V",
          "min": 2.5,
          "typ": null,
          "max": 5.5,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Feedback Voltage",
          "symbol": "VFB",
          "kind": "electrical",
          "unit": "V",
          "min": 0.585,
          "typ": 0.6,
          "max": 0.615,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Input Supply Voltage (absolute maximum)",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": 6.5,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "EN, FB, SW pin voltage",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": null,
          "conditions": "maximum printed as VIN+0.3V",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Storage Temperature Range",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "℃",
          "min": -65,
          "typ": null,
          "max": 150,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Junction Temperature",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "℃",
          "min": null,
          "typ": null,
          "max": 150,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Operating Temperature Range",
          "symbol": "",
          "kind": "recommended_operating",
          "unit": "℃",
          "min": -40,
          "typ": null,
          "max": 85,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "VIN UVLO Threshold",
          "symbol": "VIN_MIN",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": 2.4,
          "max": null,
          "conditions": "VIN Rising",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "VIN Under Voltage Lockout Threshold Hysteresis",
          "symbol": "VIN_MIN_HYST",
          "kind": "electrical",
          "unit": "mV",
          "min": null,
          "typ": 200,
          "max": null,
          "conditions": "VIN Falling",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Shutdown Supply Current",
          "symbol": "ISD",
          "kind": "electrical",
          "unit": "uA",
          "min": null,
          "typ": 1,
          "max": null,
          "conditions": "VEN=0V",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Supply Current",
          "symbol": "IQ",
          "kind": "electrical",
          "unit": "uA",
          "min": null,
          "typ": 40,
          "max": null,
          "conditions": "VEN=5V, VFB=0.63V",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Top Switch On-Resistance",
          "symbol": "RDS(ON)T",
          "kind": "electrical",
          "unit": "mΩ",
          "min": null,
          "typ": 200,
          "max": null,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Bottom Switch On-Resistance",
          "symbol": "RDS(ON)B",
          "kind": "electrical",
          "unit": "mΩ",
          "min": null,
          "typ": 150,
          "max": null,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Switch Frequency",
          "symbol": "FSW",
          "kind": "electrical",
          "unit": "MHz",
          "min": null,
          "typ": 1.5,
          "max": null,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Top Switch Current Limit",
          "symbol": "ILIM_TOP",
          "kind": "electrical",
          "unit": "A",
          "min": null,
          "typ": 1.8,
          "max": null,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Max Duty Cycle",
          "symbol": "",
          "kind": "electrical",
          "unit": "%",
          "min": null,
          "typ": 100,
          "max": null,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Minimum On Time",
          "symbol": "TON_MIN",
          "kind": "electrical",
          "unit": "ns",
          "min": null,
          "typ": 100,
          "max": null,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "EN Rising threshold voltage",
          "symbol": "VEN_H",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": 1.5,
          "max": null,
          "conditions": "VEN rising",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "EN Falling threshold",
          "symbol": "VEN_L",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": 0.4,
          "max": null,
          "conditions": "VEN falling",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "EN Input current",
          "symbol": "IIN",
          "kind": "electrical",
          "unit": "uA",
          "min": null,
          "typ": 1,
          "max": null,
          "conditions": "VEN = 0V to VIN",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Soft-Start Time",
          "symbol": "tSS",
          "kind": "timing",
          "unit": "ms",
          "min": null,
          "typ": 1,
          "max": null,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Thermal Shutdown Temperature",
          "symbol": "TSD",
          "kind": "thermal",
          "unit": "℃",
          "min": null,
          "typ": 160,
          "max": null,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Thermal Shutdown Hysteresis",
          "symbol": "THYS",
          "kind": "thermal",
          "unit": "℃",
          "min": null,
          "typ": 15,
          "max": null,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        }
      ]
    }
  },
  "variants": [],
  "sections": [
    "hero",
    "viewers",
    "readme",
    "breadcrumbs",
    "info"
  ],
  "discovery_triggers": [
    "bct1812euk-tr"
  ],
  "discovery_pitch": "BCT1812EUK-TR (BROADCHIP) component page: datasheet pinout, KiCad symbol, footprint and 3D.",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
  },
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "bct1812euk-tr.kicad_sym",
    "bct1812euk-tr.kicad_mod",
    "bct1812euk-tr.glb",
    "bct1812euk-tr.step",
    "bct1812euk-tr.lbr",
    "docs/hero.png",
    "docs/bct1812euk-tr-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "bct1812euk-tr-hero.glb",
    "bct1812euk-tr-hero.overlay.json",
    "bct1812euk-tr-etched.glb"
  ],
  "visibility": {
    "public": true
  }
}