LMBT5401LT1G

{
  "schema_version": 1,
  "type": "component",
  "slug": "lmbt5401lt1g",
  "title": "LMBT5401LT1G",
  "brief": "LRC Bipolar (BJT), SOT-23. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.1.0",
  "license": "CC-BY-SA-4.0",
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  "component": {
    "mpn": "LMBT5401LT1G",
    "manufacturer": "LRC",
    "package": "SOT-23",
    "pin_count": 3,
    "category": "Transistors/Thyristors",
    "subcategory": "Bipolar (BJT)",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8586177526675230720",
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    "distributor_links": {
      "lcsc": "C57683"
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      "checked_at": "2026-10-09T02:32:07Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "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 transistor; the device maximum ratings are V_CEO -150 Vdc, V_CBO -160 Vdc, V_EBO -5.0 Vdc and continuous collector current I_C -500 mAdc."
      },
      {
        "number": "2",
        "name": "EMITTER",
        "type": "passive",
        "description": "Emitter terminal; the emitter-base breakdown voltage V(BR)EBO is -5.0 Vdc minimum at I_E = -10 µAdc."
      },
      {
        "number": "3",
        "name": "COLLECTOR",
        "type": "passive",
        "description": "Collector terminal; the datasheet limits collector-emitter voltage V_CEO to -150 Vdc and collector-base voltage V_CBO to -160 Vdc."
      }
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        "guards": "pin_guards 0.1: passed",
        "guard_notes": [
          "extractor flagged: The datasheet gives the pinout only for the SOT-23 package (pins 1 BASE, 2 EMITTER, 3 COLLECTOR, sho; Pin types were assigned by KiCad ERC conventions for a bipolar transistor (base as input, emitter an; The datasheet does not explicitly say PNP or NPN. The negative voltage and current ratings suggest a"
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        "cost_usd": 0.0332,
        "at": "2026-10-09T02:31:13"
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        "sha256": "820bf560795c6961",
        "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
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        "seat": "z = 0",
        "extents_mm": [
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        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "dd5d1711204e1d8d26cd11490923bd84340820baa69538c385a4300ec2539bc0",
        "checked": "2026-10-09",
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  "metadata": {
    "specs": {
      "Manufacturer": "LRC",
      "Package": "SOT-23",
      "Category": "Transistors/Thyristors",
      "Pins": "3"
    },
    "characteristics": {
      "version": 1,
      "source": "datasheet",
      "datasheet_sha256": "820bf560795c6961",
      "rows": [
        {
          "name": "Collector–Emitter Voltage",
          "symbol": "V CEO",
          "kind": "absolute_maximum",
          "unit": "Vdc",
          "min": null,
          "typ": null,
          "max": -150,
          "conditions": "",
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        },
        {
          "name": "Collector–Base Voltage",
          "symbol": "V CBO",
          "kind": "absolute_maximum",
          "unit": "Vdc",
          "min": null,
          "typ": null,
          "max": -160,
          "conditions": "",
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        },
        {
          "name": "Emitter–Base Voltage",
          "symbol": "V EBO",
          "kind": "absolute_maximum",
          "unit": "Vdc",
          "min": null,
          "typ": null,
          "max": -5,
          "conditions": "",
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        },
        {
          "name": "Collector Current — Continuous",
          "symbol": "I C",
          "kind": "absolute_maximum",
          "unit": "mAdc",
          "min": null,
          "typ": null,
          "max": -500,
          "conditions": "",
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        },
        {
          "name": "Junction and Storage Temperature",
          "symbol": "T J , Tstg",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": -55,
          "typ": null,
          "max": 150,
          "conditions": "",
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        },
        {
          "name": "Total Device Dissipation (FR-5 Board)",
          "symbol": "P D",
          "kind": "thermal",
          "unit": "mW",
          "min": null,
          "typ": null,
          "max": 225,
          "conditions": "T A = 25°C, FR-5 board",
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        },
        {
          "name": "Thermal Resistance, Junction to Ambient (FR-5 Board)",
          "symbol": "R θJA",
          "kind": "thermal",
          "unit": "°C/W",
          "min": null,
          "typ": null,
          "max": 556,
          "conditions": "FR-5 board",
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        },
        {
          "name": "Total Device Dissipation (Alumina Substrate)",
          "symbol": "P D",
          "kind": "thermal",
          "unit": "mW",
          "min": null,
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          "conditions": "Alumina substrate, T A = 25°C",
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          "min": null,
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        },
        {
          "name": "Collector–Emitter Breakdown Voltage",
          "symbol": "V(BR)CEO",
          "kind": "electrical",
          "unit": "Vdc",
          "min": -150,
          "typ": null,
          "max": null,
          "conditions": "I C = –1.0 mAdc, I B = 0",
          "source_page": 1,
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        },
        {
          "name": "Collector–Base Breakdown Voltage",
          "symbol": "V(BR)CBO",
          "kind": "electrical",
          "unit": "Vdc",
          "min": -160,
          "typ": null,
          "max": null,
          "conditions": "I C = –100 µAdc, I E = 0",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Emitter–Base Breakdown Voltage",
          "symbol": "V(BR)EBO",
          "kind": "electrical",
          "unit": "Vdc",
          "min": -5,
          "typ": null,
          "max": null,
          "conditions": "I E = –10 µAdc, I C = 0",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Collector Cutoff Current",
          "symbol": "I CBO",
          "kind": "electrical",
          "unit": "nAdc",
          "min": null,
          "typ": null,
          "max": -50,
          "conditions": "V CB = –120 Vdc, I E = 0",
          "source_page": 1,
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        },
        {
          "name": "Collector Cutoff Current",
          "symbol": "I CBO",
          "kind": "electrical",
          "unit": "µAdc",
          "min": null,
          "typ": null,
          "max": -50,
          "conditions": "V CB = –120 Vdc, I E = 0, T A = 100 °C",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "DC Current Gain",
          "symbol": "hFE",
          "kind": "electrical",
          "unit": "—",
          "min": 50,
          "typ": null,
          "max": null,
          "conditions": "I C = –1.0 mAdc, V CE = –5.0 Vdc",
          "source_page": 2,
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        },
        {
          "name": "DC Current Gain",
          "symbol": "hFE",
          "kind": "electrical",
          "unit": "—",
          "min": 60,
          "typ": null,
          "max": 240,
          "conditions": "I C = –10 mAdc, V CE = –5.0 Vdc",
          "source_page": 2,
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        },
        {
          "name": "Collector–Emitter Saturation Voltage",
          "symbol": "VCE(sat)",
          "kind": "electrical",
          "unit": "Vdc",
          "min": null,
          "typ": null,
          "max": -0.2,
          "conditions": "I C = –10 mAdc, I B = –1.0 mAdc",
          "source_page": 2,
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        },
        {
          "name": "Collector–Emitter Saturation Voltage",
          "symbol": "VCE(sat)",
          "kind": "electrical",
          "unit": "Vdc",
          "min": null,
          "typ": null,
          "max": -0.5,
          "conditions": "I C = –50 mAdc, I B = –5.0 mAdc",
          "source_page": 2,
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        },
        {
          "name": "Base–Emitter Saturation Voltage",
          "symbol": "VBE(sat)",
          "kind": "electrical",
          "unit": "Vdc",
          "min": null,
          "typ": null,
          "max": -1,
          "conditions": "I C = –10 mAdc, I B = –1.0 mAdc",
          "source_page": 2,
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        },
        {
          "name": "Current–Gain — Bandwidth Product",
          "symbol": "fT",
          "kind": "electrical",
          "unit": "MHz",
          "min": 100,
          "typ": null,
          "max": 300,
          "conditions": "I C = –10 mAdc, V CE = –10 Vdc, f = 100 MHz",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Output Capacitance",
          "symbol": "Cobo",
          "kind": "electrical",
          "unit": "pF",
          "min": null,
          "typ": null,
          "max": 6,
          "conditions": "V CB = –10 Vdc, I E = 0, f = 1.0 MHz",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Small–Signal Current Gain",
          "symbol": "hfe",
          "kind": "electrical",
          "unit": "—",
          "min": 40,
          "typ": null,
          "max": 200,
          "conditions": "I C = –1.0 mAdc, V CE = –10 Vdc, f = 1.0 kHz",
          "source_page": 2,
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        },
        {
          "name": "Noise Figure",
          "symbol": "NF",
          "kind": "electrical",
          "unit": "dB",
          "min": null,
          "typ": null,
          "max": 8,
          "conditions": "I C = –200 µAdc, V CE = –5.0 Vdc, Rs = 10 Ω, f = 1.0 kHz",
          "source_page": 2,
          "source": "datasheet"
        }
      ]
    }
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    "name": "Ray",
    "email": "[email protected]"
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