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Ray Set visibility: public 7534a65 6h ago
{
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  "type": "component",
  "slug": "ldtc143xlt1g",
  "title": "LDTC143XLT1G",
  "brief": "LRC Digital Transistors, SOT-23. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
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    "package": "SOT-23",
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    "category": "Transistors/Thyristors",
    "subcategory": "Digital Transistors",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588945049371750400",
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      "lbr": "ldtc143xlt1g.lbr"
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      "lcsc": "C2875421"
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      "checked_at": "2026-10-17T14:37:42Z",
      "source": "Component Ocean /api/assign-pns",
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        "status": "quota"
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      "mouser": {
        "pn": null,
        "status": "quota"
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    "pins": [
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        "number": "1",
        "name": "BASE",
        "type": "input",
        "description": "Base input of the built-in NPN transistor, which carries the integrated bias resistor network (R1 4.7 kΩ per the device marking table) so no external input resistor is needed; input voltage VIN is rated −10 V to +10 V."
      },
      {
        "number": "2",
        "name": "EMITTER",
        "type": "passive",
        "description": "Emitter of the built-in NPN transistor, serving as the reference terminal for the bias network and the inverter configuration; the datasheet gives no separate electrical limit for this pin."
      },
      {
        "number": "3",
        "name": "COLLECTOR",
        "type": "output",
        "description": "Collector output of the built-in transistor, rated for output current IO up to 100 mA with supply voltage VCC up to 50 V and device power dissipation of 200 mW."
      }
    ],
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        "extractor": "extract_pins 0.3",
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        "consensus_model": "claude-sonnet-5-5",
        "consensus": "agreed",
        "guards": "pin_guards 0.1: passed",
        "guard_notes": [
          "extractor flagged: The datasheet gives the pin names and numbers (1 BASE, 2 EMITTER, 3 COLLECTOR) on the SOT-23 outline; The emitter is not stated to be GND. It could be tied to ground in an inverter circuit, which would ; The text states R1 = 4.7 kΩ from the device marking table, but the electrical characteristics table "
        ],
        "pages_sent": 3,
        "cost_usd": 0.0261,
        "at": "2026-10-17T14:35:45"
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        "pages": 3,
        "sha256": "8c23e301e4ca1e77",
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      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 3,
        "described": 3,
        "cites_pages": true,
        "refuses_to_fabricate": true
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      "footprint": "viewers/footprint.html"
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        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
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        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "dd5d1711204e1d8d26cd11490923bd84340820baa69538c385a4300ec2539bc0",
        "checked": "2026-10-17",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "ldtc143xlt1g-etched.step",
        "role": "eda",
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        "checked": "2026-10-17",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
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  },
  "metadata": {
    "specs": {
      "Manufacturer": "LRC",
      "Package": "SOT-23",
      "Category": "Transistors/Thyristors",
      "Pins": "3"
    },
    "characteristics": {
      "version": 1,
      "source": "datasheet",
      "datasheet_sha256": "8c23e301e4ca1e777e48474e0d178e62eaeb7ffb8869c1819e6c9ef5e039095f",
      "rows": [
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          "typ": null,
          "max": 50,
          "conditions": "",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Input voltage",
          "symbol": "VIN",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -10,
          "typ": null,
          "max": 10,
          "conditions": "",
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        },
        {
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          "unit": "mW",
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          "conditions": "",
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        },
        {
          "name": "Junction temperature",
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          "unit": "°C",
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          "max": 150,
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        {
          "name": "Storage temperature",
          "symbol": "Tstg",
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          "unit": "°C",
          "min": -55,
          "typ": null,
          "max": 150,
          "conditions": "",
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        {
          "name": "Input resistance",
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          "unit": "kΩ",
          "min": 3.29,
          "typ": 4.7,
          "max": 6.11,
          "conditions": "",
          "source_page": 1,
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        },
        {
          "name": "Resistance ratio",
          "symbol": "R2/R1",
          "kind": "electrical",
          "unit": "−",
          "min": 1.7,
          "typ": 2.1,
          "max": 2.6,
          "conditions": "",
          "source_page": 1,
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        },
        {
          "name": "DC current gain",
          "symbol": "GI",
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          "unit": "−",
          "min": 30,
          "typ": null,
          "max": null,
          "conditions": "VO=5V, IO=10mA",
          "source_page": 1,
          "source": "datasheet"
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  "discovery_pitch": "LDTC143XLT1G (LRC) component page: datasheet pinout, KiCad symbol, footprint and 3D.",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
  },
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