MJD127T4G-JSM

{
  "slug": "mjd127t4g-jsm",
  "version": "0.1.0",
  "type": "component",
  "description": "JSMSEMI Darlington Transistors, TO-252. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "transistors-thyristors",
    "mjd127t4g-jsm",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
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    "README.md",
    "mjd127t4g-jsm.kicad_sym",
    "mjd127t4g-jsm.kicad_mod",
    "mjd127t4g-jsm.glb",
    "mjd127t4g-jsm.step",
    "mjd127t4g-jsm.lbr",
    "docs/hero.png",
    "docs/mjd127t4g-jsm-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "mjd127t4g-jsm-hero.glb",
    "mjd127t4g-jsm-hero.overlay.json",
    "mjd127t4g-jsm-etched.glb"
  ],
  "component": {
    "mpn": "MJD127T4G-JSM",
    "manufacturer": "JSMSEMI",
    "package": "TO-252",
    "pin_count": 3,
    "category": "Transistors/Thyristors",
    "subcategory": "Darlington Transistors",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8590927115620085760",
    "parts": {
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      "footprint": "mjd127t4g-jsm.kicad_mod",
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      "model_3d_plain": "mjd127t4g-jsm-etched.glb",
      "model_3d_step": "mjd127t4g-jsm-etched.step",
      "model_3d_step_plain": "mjd127t4g-jsm.step",
      "lbr": "mjd127t4g-jsm.lbr"
    },
    "distributor_links": {
      "lcsc": "C20606863"
    },
    "distributor_check": {
      "checked_at": "2026-10-18T11:13:44Z",
      "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 of the PNP Darlington transistor; Emitter-Base voltage limited to -5 V (VEBO) and emitter cutoff current IEBO max -2 mA at VEB=-5V."
      },
      {
        "number": "2",
        "name": "Collector",
        "type": "passive",
        "description": "Collector of the PNP Darlington transistor (also connected to the tab); VCEO -100 V, VCBO -100 V, continuous collector current -8 A."
      },
      {
        "number": "3",
        "name": "Emitter",
        "type": "passive",
        "description": "Emitter of the PNP Darlington transistor; the datasheet shows an internal diode between emitter and collector."
      }
    ],
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        "factory": "2.0.0",
        "extractor": "extract_pins 0.3",
        "primary_model": "claude-sonnet-5-5",
        "primary_mode": "text+vision",
        "consensus_model": "claude-opus-5-5",
        "consensus": "agreed",
        "guards": "pin_guards 0.1: passed",
        "guard_notes": [
          "extractor flagged: Pin assignment (1 Base, 2 Collector, 3 Emitter) is from the page 1 pin diagram. The package drawing ",
          "vision extraction: provenance cannot be text-verified; needs consensus"
        ],
        "pages_sent": 3,
        "cost_usd": 0.17,
        "at": "2026-10-18T11:13:31"
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        "pages": 3,
        "sha256": "c96e4f4a11d25c2c",
        "source_tier": "lcsc"
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        "total": 3,
        "described": 3,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
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      },
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}