MMBT5401-G

{
  "slug": "mmbt5401-g",
  "version": "0.1.0",
  "type": "component",
  "description": "Changjing Bipolar (BJT), SOT-23. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "transistors-thyristors",
    "mmbt5401-g",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
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    "README.md",
    "mmbt5401-g.kicad_sym",
    "mmbt5401-g.kicad_mod",
    "mmbt5401-g.glb",
    "mmbt5401-g.step",
    "mmbt5401-g.lbr",
    "docs/hero.png",
    "docs/mmbt5401-g-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "mmbt5401-g-hero.glb",
    "mmbt5401-g-hero.overlay.json",
    "mmbt5401-g-etched.glb"
  ],
  "component": {
    "mpn": "MMBT5401-G",
    "manufacturer": "Changjing",
    "package": "SOT-23",
    "pin_count": 3,
    "category": "Transistors/Thyristors",
    "subcategory": "Bipolar (BJT)",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8586189198194331648",
    "parts": {
      "symbol": "mmbt5401-g.kicad_sym",
      "footprint": "mmbt5401-g.kicad_mod",
      "model_3d": "mmbt5401-g-hero.glb",
      "model_3d_plain": "mmbt5401-g-etched.glb",
      "model_3d_step": "mmbt5401-g-etched.step",
      "model_3d_step_plain": "mmbt5401-g.step",
      "lbr": "mmbt5401-g.lbr"
    },
    "distributor_links": {
      "lcsc": "C164896",
      "digikey": "641-2015-2-ND",
      "mouser": "750-MMBT5401-G"
    },
    "distributor_check": {
      "checked_at": "2026-10-20T01:41:26Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "641-2015-2-ND",
        "status": "found",
        "lifecycle": "Active"
      },
      "mouser": {
        "pn": "750-MMBT5401-G",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "BASE",
        "type": "input",
        "description": "Base terminal of the PNP transistor; the datasheet gives no separate pin limit, with the absolute maximum ratings applying to the device (VEBO -5 V, IC -0.6 A)."
      },
      {
        "number": "2",
        "name": "EMITTER",
        "type": "passive",
        "description": "Emitter terminal of the PNP transistor; the emitter-base breakdown voltage V(BR)EBO is -5 V minimum and the emitter cut-off current is specified at VEB=-4V."
      },
      {
        "number": "3",
        "name": "COLLECTOR",
        "type": "passive",
        "description": "Collector terminal of the PNP transistor; the collector-emitter voltage is rated at -150 V (VCEO) and the collector current at -0.6 A, with a collector power dissipation of 0.3 W."
      }
    ],
    "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 datasheet covers only the SOT-23 package and lists the pin order 1. BASE, 2. EMITTER, 3. COLLECT; Pin types are assigned by standard transistor convention (base as input, emitter and collector as pa; The datasheet does not give per-pin functional limits. Pin descriptions reference the device-level r"
        ],
        "pages_sent": 4,
        "cost_usd": 0.0172,
        "at": "2026-10-20T01:41:13"
      },
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        "pages": 4,
        "sha256": "b234d3f5e91a0474",
        "source_tier": "lcsc"
      },
      "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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        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
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        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "dd5d1711204e1d8d26cd11490923bd84340820baa69538c385a4300ec2539bc0",
        "checked": "2026-10-20",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "mmbt5401-g-etched.step",
        "role": "eda",
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        "checked": "2026-10-20",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
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  }
}