main
Ray Set visibility: public c32e614 7d ago
{
  "schema_version": 1,
  "type": "component",
  "slug": "2sd1804l-t-tn3-r",
  "title": "2SD1804L-T-TN3-R",
  "brief": "UTC Unisonic Tech Bipolar (BJT), TO-252. 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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  "component": {
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    "manufacturer": "UTC Unisonic Tech",
    "package": "TO-252",
    "pin_count": 3,
    "category": "Transistors/Thyristors",
    "subcategory": "Bipolar (BJT)",
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      "source": "Component Ocean /api/assign-pns",
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      },
      {
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        "name": "C",
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        "description": "Collector terminal of the NPN transistor, per the pin assignment for the TO-252 package (B C E); the datasheet gives a maximum collector current of 8 A (12 A pulse) and collector dissipation of 1 W at TA=25°C for TO-251/TO-252."
      },
      {
        "number": "3",
        "name": "E",
        "type": "passive",
        "description": "Emitter terminal of the NPN transistor, per the pin assignment for the TO-252 package (B C E)."
      }
    ],
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      "extractor": "extract_pins 0.3",
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        "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 ordering table lists the TO-252 pin assignment as 1=B, 2=C, 3=E, but the datasheet gives no per-; The MPN 2SD1804L-T-TN3-R matches the template 2SD1804L-x-TN3-R; the 'x' field is the rank/option slo; The description for pin 2 was extended with the absolute maximum collector current and power dissipa"
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        "pages_sent": 5,
        "cost_usd": 0.0271,
        "at": "2026-10-17T22:52:09"
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        "pages": 5,
        "sha256": "9cd3a7c509413bda",
        "source_tier": "lcsc"
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      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 3,
        "described": 3,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
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      "footprint": "viewers/footprint.html"
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        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
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        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "3eb4c99603a4fe837c2fe9308bc174769ded87a785a0df48d2dc441432ee8b4c",
        "checked": "2026-10-17",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
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        "sha256": "848bab1fafb7c701e7465c72f15c563c9069523601cc6261a6f6839c46f1f3d5",
        "checked": "2026-10-17",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "UTC Unisonic Tech",
      "Package": "TO-252",
      "Category": "Transistors/Thyristors",
      "Pins": "3"
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    "characteristics": {
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          "conditions": "TA=25°C, TO-251/TO-252",
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          "max": 60,
          "conditions": "TA=25°C, unless otherwise specified",
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          "source": "datasheet"
        },
        {
          "name": "Collector-Emitter Voltage",
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          "kind": "absolute_maximum",
          "unit": "V",
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          "conditions": "TA=25°C, unless otherwise specified",
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        {
          "name": "Emitter-Base Voltage",
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          "conditions": "TA=25°C, unless otherwise specified",
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        {
          "name": "Collector Current",
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          "max": 8,
          "conditions": "TA=25°C, unless otherwise specified",
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          "source": "datasheet"
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        {
          "name": "Collector Current (PULSE)",
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        {
          "name": "Storage Temperature",
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          "min": -55,
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        {
          "name": "Collector-Base Breakdown Voltage",
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        {
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          "conditions": "IC=1mA, RBE=",
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        {
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        {
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          "conditions": "VCE=2V, IC=0.5A",
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        {
          "name": "DC Current Gain (hFE2)",
          "symbol": "hFE2",
          "kind": "electrical",
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          "min": 35,
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          "conditions": "VCE=2V, IC=6A",
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        {
          "name": "Collector-Emitter Saturation Voltage",
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        {
          "name": "Gain-Bandwidth Product",
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          "unit": "MHz",
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          "typ": 180,
          "max": null,
          "conditions": "VCE=5V, IC=1A",
          "source_page": 2,
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        {
          "name": "Output Capacitance",
          "symbol": "Cob",
          "kind": "electrical",
          "unit": "pF",
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          "typ": 65,
          "max": null,
          "conditions": "VCE=10V, f=1MHz",
          "source_page": 2,
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        },
        {
          "name": "Storage Time",
          "symbol": "tSTG",
          "kind": "electrical",
          "unit": "ns",
          "min": null,
          "typ": 500,
          "max": null,
          "conditions": "See test circuit",
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        },
        {
          "name": "Fall Time",
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          "unit": "ns",
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          "conditions": "See test circuit",
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          "source": "datasheet"
        }
      ]
    }
  },
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  "discovery_triggers": [
    "2sd1804l-t-tn3-r"
  ],
  "discovery_pitch": "2SD1804L-T-TN3-R (UTC Unisonic Tech) component page: datasheet pinout, KiCad symbol, footprint and 3D.",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
  },
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}