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Ray Set visibility: public ad7476a 23d ago
{
  "schema_version": 1,
  "type": "component",
  "slug": "mmst5401",
  "title": "MMST5401",
  "brief": "HT(Shenzhen Jinyu Semicon) Bipolar (BJT), SOT-323. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.1.0",
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    "subcategory": "Bipolar (BJT)",
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    "distributor_links": {
      "lcsc": "C54934187"
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    "distributor_check": {
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      "source": "Component Ocean /api/assign-pns",
      "digikey": {
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        "status": "quota"
      },
      "mouser": {
        "pn": null,
        "status": "quota"
      }
    },
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      {
        "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",
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      },
      {
        "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."
      }
    ],
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      "extractor": "extract_pins 0.3",
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        "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"
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        "at": "2026-10-17T19:53:17"
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        "pages": 4,
        "sha256": "b1e63bfdbd256f42",
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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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        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
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          2,
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        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "acbf75a28fe41aa90efb38cd2b78220968d6eb6ebae1625dfd532dbeb268fece",
        "checked": "2026-10-17",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
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  "metadata": {
    "specs": {
      "Manufacturer": "HT(Shenzhen Jinyu Semicon)",
      "Package": "SOT-323",
      "Category": "Transistors/Thyristors",
      "Pins": "3"
    },
    "characteristics": {
      "version": 1,
      "source": "datasheet",
      "datasheet_sha256": "b1e63bfdbd256f428454d9cdb1776e995a1ef1f047747c775ee2efd5ca120acc",
      "rows": [
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          "name": "Collector-base breakdown voltage",
          "symbol": "V(BR)CBO",
          "kind": "electrical",
          "unit": "V",
          "min": -160,
          "typ": null,
          "max": null,
          "conditions": "IC=-100µA, IE=0",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Collector-emitter breakdown voltage",
          "symbol": "V(BR)CEO",
          "kind": "electrical",
          "unit": "V",
          "min": -150,
          "typ": null,
          "max": null,
          "conditions": "IC=-1mA, IB=0",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Emitter-base breakdown voltage",
          "symbol": "V(BR)EBO",
          "kind": "electrical",
          "unit": "V",
          "min": -5,
          "typ": null,
          "max": null,
          "conditions": "IE=-10µA, IC=0",
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          "source": "datasheet"
        },
        {
          "name": "Collector cut-off current",
          "symbol": "ICBO",
          "kind": "electrical",
          "unit": "nA",
          "min": -50,
          "typ": null,
          "max": null,
          "conditions": "VCB=-120V, IE=0",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Emitter cut-off current",
          "symbol": "IEBO",
          "kind": "electrical",
          "unit": "nA",
          "min": -50,
          "typ": null,
          "max": null,
          "conditions": "VEB=-3V, IC=0",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "DC current gain",
          "symbol": "hFE",
          "kind": "electrical",
          "unit": "",
          "min": 50,
          "typ": null,
          "max": null,
          "conditions": "VCE=-5V, IC=-1mA",
          "source_page": 1,
          "source": "datasheet"
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        {
          "name": "DC current gain",
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          "kind": "electrical",
          "unit": "",
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          "typ": null,
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          "conditions": "VCE=-5V, IC=-10mA",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Collector-emitter saturation voltage",
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          "unit": "V",
          "min": -0.5,
          "typ": null,
          "max": null,
          "conditions": "IC=-50mA, IB=-5mA",
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          "source": "datasheet"
        },
        {
          "name": "Collector-emitter saturation voltage",
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          "min": -0.2,
          "typ": null,
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          "source": "datasheet"
        },
        {
          "name": "Base-emitter saturation voltage",
          "symbol": "VBE(sat)",
          "kind": "electrical",
          "unit": "V",
          "min": -1,
          "typ": null,
          "max": null,
          "conditions": "IC=-50mA, IB=-5mA",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Transition frequency",
          "symbol": "fT",
          "kind": "electrical",
          "unit": "MHz",
          "min": 100,
          "typ": null,
          "max": null,
          "conditions": "VCE=-10V, IC=-10mA, f=100MHz",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Collector output capacitance",
          "symbol": "Cob",
          "kind": "electrical",
          "unit": "pF",
          "min": null,
          "typ": null,
          "max": 6,
          "conditions": "VCB=-10V, IE=0, f=1MHz",
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          "source": "datasheet"
        },
        {
          "name": "Collector-base voltage",
          "symbol": "VCBO",
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          "unit": "V",
          "min": -160,
          "typ": null,
          "max": null,
          "conditions": "Ta=25℃",
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        },
        {
          "name": "Collector-emitter voltage",
          "symbol": "VCEO",
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          "unit": "V",
          "min": -150,
          "typ": null,
          "max": null,
          "conditions": "Ta=25℃",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Emitter-base voltage",
          "symbol": "VEBO",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -5,
          "typ": null,
          "max": null,
          "conditions": "Ta=25℃",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Collector current",
          "symbol": "IC",
          "kind": "absolute_maximum",
          "unit": "mA",
          "min": -600,
          "typ": null,
          "max": null,
          "conditions": "Ta=25℃",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Collector power dissipation",
          "symbol": "PC",
          "kind": "absolute_maximum",
          "unit": "mW",
          "min": null,
          "typ": null,
          "max": 200,
          "conditions": "Ta=25℃",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Operation junction and storage temperature range",
          "symbol": "TJ,Tstg",
          "kind": "absolute_maximum",
          "unit": "℃",
          "min": -55,
          "typ": null,
          "max": 150,
          "conditions": "",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Thermal resistance from junction to ambient",
          "symbol": "RΘJA",
          "kind": "thermal",
          "unit": "℃/W",
          "min": null,
          "typ": null,
          "max": 625,
          "conditions": "",
          "source_page": 1,
          "source": "datasheet"
        }
      ]
    }
  },
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  "discovery_triggers": [
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  ],
  "discovery_pitch": "MMST5401 (HT(Shenzhen Jinyu Semicon)) component page: datasheet pinout, KiCad symbol, footprint and 3D.",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
  },
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}