MJD350T4

{
  "schema_version": 1,
  "type": "component",
  "slug": "mjd350t4",
  "title": "MJD350T4",
  "brief": "STMicroelectronics Bipolar (BJT), TO-252. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.1.0",
  "license": "CC-BY-SA-4.0",
  "tags": [
    "component",
    "transistors-thyristors",
    "mjd350t4",
    "factory-2.0.0",
    "extractor-text"
  ],
  "component": {
    "mpn": "MJD350T4",
    "manufacturer": "STMicroelectronics",
    "package": "TO-252",
    "pin_count": 3,
    "category": "Transistors/Thyristors",
    "subcategory": "Bipolar (BJT)",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8586202516833390592",
    "parts": {
      "symbol": "mjd350t4.kicad_sym",
      "footprint": "mjd350t4.kicad_mod",
      "model_3d": "mjd350t4-etched.glb",
      "model_3d_plain": "mjd350t4.glb",
      "model_3d_step": "mjd350t4-etched.step",
      "model_3d_step_plain": "mjd350t4.step",
      "lbr": "mjd350t4.lbr"
    },
    "distributor_links": {
      "lcsc": "C67351"
    },
    "pins": [
      {
        "number": "1",
        "name": "Base",
        "type": "input",
        "description": "Base input terminal for transistor control, rated for VEBO (Emitter-Base Voltage) max 3V, controlling collector-emitter conduction."
      },
      {
        "number": "2",
        "name": "Collector",
        "type": "passive",
        "description": "Collector terminal connected to metal tab, sustaining VCBO and VCEO max 300V each, with IC max 0.5A and ICM max 0.75A."
      },
      {
        "number": "3",
        "name": "Emitter",
        "type": "passive",
        "description": "Emitter terminal providing return path for collector current, referenced in VCBO (IE=0) and VCEO measurements, completing the BJT junction."
      }
    ],
    "provenance": {
      "extractor": "extract_pins 0.2",
      "factory_chain": {
        "factory": "2.0.0",
        "extractor": "extract_pins 0.2",
        "primary_model": "claude-haiku-4-5-20251001",
        "primary_mode": "text",
        "consensus_model": "claude-sonnet-5",
        "consensus": "agreed",
        "guards": "pin_guards 0.1: passed",
        "guard_notes": [
          "extractor flagged: Datasheet shows package pinout diagram on page 1 but does not explicitly state in text form which pi"
        ],
        "pages_sent": 5,
        "cost_usd": 0.0921,
        "at": "2026-09-23T04:01:17"
      },
      "datasheet": {
        "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8586202516833390592",
        "pages": 5,
        "sha256": "a6cc88d76e0c4d05",
        "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": "mjd350t4.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          9.9,
          6.5,
          2.32
        ],
        "zmin_mm": -0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "3eb4c99603a4fe837c2fe9308bc174769ded87a785a0df48d2dc441432ee8b4c",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "mjd350t4-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          9.9,
          6.5,
          2.32
        ],
        "zmin_mm": -0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "a6a59b119a2907886546ea506ace84af3cab638ce461155165aaa4bdf9ae8cef",
        "checked": "2026-10-16",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "STMicroelectronics",
      "Package": "TO-252",
      "Category": "Transistors/Thyristors",
      "Pins": "3"
    },
    "characteristics": {
      "version": 1,
      "source": "datasheet",
      "datasheet_sha256": "a6cc88d76e0c4d05",
      "rows": [
        {
          "name": "Collector Cut-off Current (VBE = 0)",
          "symbol": "ICBO",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": null,
          "max": 0.1,
          "conditions": "VCB = 300 V",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Emitter Cut-off Current (IC = 0)",
          "symbol": "IEBO",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": null,
          "max": 0.1,
          "conditions": "VEB = 3 V",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Collector-Emitter Sustaining Voltage (IB = 0)",
          "symbol": "VCEO(sus)",
          "kind": "electrical",
          "unit": "V",
          "min": 300,
          "typ": null,
          "max": null,
          "conditions": "IC = 1 mA",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "DC Current Gain",
          "symbol": "hFE",
          "kind": "electrical",
          "unit": "",
          "min": 30,
          "typ": null,
          "max": 240,
          "conditions": "IC = 50 mA VCE = 10 V; pulsed: pulse duration = 300 µs, duty cycle ≤ 2 %",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Collector-Base Voltage (IE = 0)",
          "symbol": "VCBO",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 300,
          "conditions": "IE = 0",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Collector-Emitter Voltage (IB = 0)",
          "symbol": "VCEO",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 300,
          "conditions": "IB = 0",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Emitter-Base Voltage (IC = 0)",
          "symbol": "VEBO",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 3,
          "conditions": "IC = 0",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Collector Current",
          "symbol": "IC",
          "kind": "absolute_maximum",
          "unit": "A",
          "min": null,
          "typ": null,
          "max": 0.5,
          "conditions": "",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Collector Peak Current",
          "symbol": "ICM",
          "kind": "absolute_maximum",
          "unit": "A",
          "min": null,
          "typ": null,
          "max": 0.75,
          "conditions": "tp = 25 °C",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Total Power Dissipation",
          "symbol": "Ptot",
          "kind": "absolute_maximum",
          "unit": "W",
          "min": null,
          "typ": null,
          "max": 15,
          "conditions": "Tcase ≤ 25 °C",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Storage Temperature",
          "symbol": "Tstg",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": -65,
          "typ": null,
          "max": 150,
          "conditions": "",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Max Operating Junction Temperature",
          "symbol": "Tj",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": null,
          "typ": null,
          "max": 150,
          "conditions": "",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Thermal Resistance Junction-case Max",
          "symbol": "Rthj-case",
          "kind": "thermal",
          "unit": "°C/W",
          "min": null,
          "typ": null,
          "max": 8.33,
          "conditions": "",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Thermal Resistance Junction-ambient Max",
          "symbol": "Rthj-amb",
          "kind": "thermal",
          "unit": "°C/W",
          "min": null,
          "typ": null,
          "max": 100,
          "conditions": "",
          "source_page": 2,
          "source": "datasheet"
        }
      ]
    }
  },
  "variants": [],
  "sections": [
    "hero",
    "viewers",
    "readme",
    "breadcrumbs",
    "info"
  ],
  "discovery_triggers": [
    "mjd350t4"
  ],
  "discovery_pitch": "MJD350T4 (STMicroelectronics) component page with datasheet-verified CAD.",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
  },
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "mjd350t4.kicad_sym",
    "mjd350t4.kicad_mod",
    "mjd350t4.glb",
    "mjd350t4.step",
    "mjd350t4.lbr",
    "docs/hero.png",
    "docs/mjd350t4-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html"
  ],
  "visibility": {
    "public": true
  },
  "updated_at": "2026-09-25T02:04:26.523Z"
}