MMST5401

{
  "slug": "mmst5401",
  "version": "0.1.0",
  "type": "component",
  "description": "HT(Shenzhen Jinyu Semicon) Bipolar (BJT), SOT-323. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "transistors-thyristors",
    "mmst5401",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "mmst5401.kicad_sym",
    "mmst5401.kicad_mod",
    "mmst5401.glb",
    "mmst5401.step",
    "mmst5401.lbr",
    "docs/hero.png",
    "docs/mmst5401-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "mmst5401-hero.glb",
    "mmst5401-hero.overlay.json",
    "mmst5401-etched.glb"
  ],
  "component": {
    "mpn": "MMST5401",
    "manufacturer": "HT(Shenzhen Jinyu Semicon)",
    "package": "SOT-323",
    "pin_count": 3,
    "category": "Transistors/Thyristors",
    "subcategory": "Bipolar (BJT)",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8756499248072536064",
    "parts": {
      "symbol": "mmst5401.kicad_sym",
      "footprint": "mmst5401.kicad_mod",
      "model_3d": "mmst5401-hero.glb",
      "model_3d_plain": "mmst5401-etched.glb",
      "model_3d_step": "mmst5401-etched.step",
      "model_3d_step_plain": "mmst5401.step",
      "lbr": "mmst5401.lbr"
    },
    "distributor_links": {
      "lcsc": "C54934187"
    },
    "distributor_check": {
      "checked_at": "2026-10-17T19:56:40Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "quota"
      },
      "mouser": {
        "pn": null,
        "status": "quota"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "BASE",
        "type": "input",
        "description": "Base terminal of the PNP transistor, with an emitter-base voltage rating of VEBO = -5 V and emitter-base breakdown of -5 V minimum at IE = -10 µA."
      },
      {
        "number": "2",
        "name": "EMITTER",
        "type": "passive",
        "description": "Emitter terminal of the PNP transistor, with a maximum collector current rating of IC = -600 mA and emitter-base voltage limit of -5 V."
      },
      {
        "number": "3",
        "name": "COLLECTOR",
        "type": "passive",
        "description": "Collector terminal of the PNP transistor, rated for collector-base voltage VCBO = -160 V, collector-emitter voltage VCEO = -150 V, and total collector power dissipation of 200 mW."
      }
    ],
    "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 pin types (input for BASE, passive for EMITTER and COLLECTOR) are assigned using KiCad ERC conve; The datasheet shows only the SOT-323 package (pinout block on page 1, outline on page 3), so the SOT"
        ],
        "pages_sent": 4,
        "cost_usd": 0.0164,
        "at": "2026-10-17T19:53:17"
      },
      "datasheet": {
        "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8756499248072536064",
        "pages": 4,
        "sha256": "b1e63bfdbd256f42",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 3,
        "described": 3,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
      {
        "file": "mmst5401.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
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          2.0,
          1.1
        ],
        "zmin_mm": -0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "acbf75a28fe41aa90efb38cd2b78220968d6eb6ebae1625dfd532dbeb268fece",
        "checked": "2026-10-17",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "mmst5401-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
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          1.1
        ],
        "zmin_mm": -0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "7651e9b0f7406b723b8e63a792c8c0d1a801a6747529c2b4324ec9e0c677c28a",
        "checked": "2026-10-17",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}