LMBTA42LT1G

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  "title": "LMBTA42LT1G",
  "brief": "LRC Bipolar (BJT), SOT-23. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
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    "mpn": "LMBTA42LT1G",
    "manufacturer": "LRC",
    "package": "SOT-23",
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    "category": "Transistors/Thyristors",
    "subcategory": "Bipolar (BJT)",
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      "source": "Component Ocean /api/assign-pns",
      "digikey": {
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        "status": "no match"
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      "mouser": {
        "pn": null,
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    },
    "pins": [
      {
        "number": "1",
        "name": "BASE",
        "type": "input",
        "description": "Base terminal of the LMBTA42LT1G NPN transistor; the datasheet gives V_BE(sat) of 0.9 Vdc max at I_C = 20 mAdc, I_B = 2.0 mAdc."
      },
      {
        "number": "2",
        "name": "EMITTER",
        "type": "passive",
        "description": "Emitter terminal; the datasheet gives emitter-base voltage V_EBO of 6.0 Vdc max and emitter-base breakdown V_(BR)EBO of 6.0 Vdc min."
      },
      {
        "number": "3",
        "name": "COLLECTOR",
        "type": "passive",
        "description": "Collector terminal; the datasheet gives collector-emitter voltage V_CEO of 300 Vdc for LMBTA42 and collector current I_C of 500 mAdc continuous."
      }
    ],
    "provenance": {
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        "guards": "pin_guards 0.1: passed",
        "guard_notes": [
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        "cost_usd": 0.0286,
        "at": "2026-10-09T14:06:34"
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        "sha256": "4f28cae5709468a3",
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      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 3,
        "described": 3,
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        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
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        "checked": "2026-10-09",
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  "metadata": {
    "specs": {
      "Manufacturer": "LRC",
      "Package": "SOT-23",
      "Category": "Transistors/Thyristors",
      "Pins": "3"
    },
    "characteristics": {
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          "name": "Collector–Emitter Voltage",
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          "name": "Collector–Base Voltage",
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        {
          "name": "Collector Current — Continuous",
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        },
        {
          "name": "Total Device Dissipation (FR-5 Board)",
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          "kind": "thermal",
          "unit": "mW",
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          "symbol": "RθJA",
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          "unit": "°C/W",
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          "name": "Collector–Emitter Breakdown Voltage",
          "symbol": "V(BR)CEO",
          "kind": "electrical",
          "unit": "Vdc",
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          "typ": null,
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          "conditions": "IC = 1.0 mAdc, IB = 0 (LMBTA42)",
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          "symbol": "V(BR)CBO",
          "kind": "electrical",
          "unit": "Vdc",
          "min": 300,
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          "conditions": "IC = 100 µAdc, IE = 0 (LMBTA42)",
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        {
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          "kind": "electrical",
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          "min": 25,
          "typ": null,
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          "conditions": "IC = 1.0 mAdc, VCE = 10 Vdc (Both Types)",
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        {
          "name": "Collector–Emitter Saturation Voltage",
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          "unit": "Vdc",
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          "max": 0.5,
          "conditions": "IC = 20 mAdc, IB = 2.0 mAdc (LMBTA42)",
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        {
          "name": "Current–Gain–Bandwidth Product",
          "symbol": "fT",
          "kind": "electrical",
          "unit": "MHz",
          "min": 50,
          "typ": null,
          "max": null,
          "conditions": "VCE = 20 Vdc, IC = 10 mA, f = 100 MHz",
          "source_page": 2,
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        },
        {
          "name": "Collector–Base Capacitance",
          "symbol": "Ccb",
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          "unit": "pF",
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          "typ": null,
          "max": 3,
          "conditions": "VCB = 20 Vdc, IE = 0, f = 1.0 MHz (LMBTA42)",
          "source_page": 2,
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    "email": "[email protected]"
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