3DD4242DM-126

{
  "schema_version": 1,
  "type": "component",
  "slug": "3dd4242dm-126",
  "title": "3DD4242DM-126",
  "brief": "Jilin Sino-Microelectronics Bipolar Transistors - BJT, TO-126. 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",
    "3dd4242dm-126",
    "factory-2.0.0",
    "extractor-text"
  ],
  "component": {
    "mpn": "3DD4242DM-126",
    "manufacturer": "Jilin Sino-Microelectronics",
    "package": "TO-126",
    "pin_count": 3,
    "category": "Transistors",
    "subcategory": "Bipolar Transistors - BJT",
    "datasheet": "https://datasheet.lcsc.com/datasheet/pdf/c3728830a9d3c6184badd088de78bd7c.pdf",
    "parts": {
      "symbol": "3dd4242dm-126.kicad_sym",
      "footprint": "3dd4242dm-126.kicad_mod",
      "model_3d": "3dd4242dm-126-hero.glb",
      "model_3d_plain": "3dd4242dm-126-etched.glb",
      "model_3d_step": "3dd4242dm-126-etched.step",
      "model_3d_step_plain": "3dd4242dm-126.step",
      "lbr": "3dd4242dm-126.lbr"
    },
    "distributor_links": {
      "lcsc": "C272486"
    },
    "distributor_check": {
      "checked_at": "2026-10-28T00:07:36Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "no match"
      },
      "mouser": {
        "pn": null,
        "status": "no match"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "B",
        "type": "passive",
        "description": "Base of the NPN transistor; the emitter-base voltage VEBO is limited to 9 V."
      },
      {
        "number": "2",
        "name": "C",
        "type": "passive",
        "description": "Collector; VCEO is 400 V (IB=0) and VCES is 700 V (VBE=0), with DC collector current IC up to 1.5 A and pulse ICP up to 3.0 A."
      },
      {
        "number": "3",
        "name": "E",
        "type": "passive",
        "description": "Emitter of the NPN transistor; VEBO is limited to 9 V."
      }
    ],
    "provenance": {
      "extractor": "extract_pins 0.3",
      "factory_chain": {
        "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: The MPN 3DD4242DM-126 does not match any order code exactly. The TO-126 codes are 3DD4242D-M-C/-CR (; Pin functions come from the schematic symbol on page 1: B (1), C (2), E (3). The TO-126 drawing on p",
          "vision extraction: provenance cannot be text-verified; needs consensus"
        ],
        "pages_sent": 9,
        "cost_usd": 0.0678,
        "at": "2026-10-28T00:07:28"
      },
      "datasheet": {
        "url": "https://datasheet.lcsc.com/datasheet/pdf/c3728830a9d3c6184badd088de78bd7c.pdf",
        "pages": 9,
        "sha256": "d1634e2289b1e56e",
        "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": "3dd4242dm-126.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "body on z = 0, through-hole leads below",
        "extents_mm": [
          8,
          3.25,
          23.75
        ],
        "zmin_mm": -9.75,
        "centre_offset_mm": 0.375,
        "footprint_binding": "identity",
        "sha256": "6cb4ab2049af821a4bd7162ee7b11b91bdea76f43915d9c1fbb0cb1cdeeaa9c6",
        "checked": "2026-10-28",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "3dd4242dm-126-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "body on z = 0, through-hole leads below",
        "extents_mm": [
          8,
          3.25,
          23.75
        ],
        "zmin_mm": -9.75,
        "centre_offset_mm": 0.375,
        "footprint_binding": "identity",
        "sha256": "5596d02ed2069285a692d5144199a4a4052d29993030e87d8cfdb444b1b34e7e",
        "checked": "2026-10-28",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "Jilin Sino-Microelectronics",
      "Package": "TO-126",
      "Category": "Transistors",
      "Pins": "3"
    }
  },
  "variants": [],
  "sections": [
    "hero",
    "viewers",
    "readme",
    "breadcrumbs",
    "info"
  ],
  "discovery_triggers": [
    "3dd4242dm-126"
  ],
  "discovery_pitch": "3DD4242DM-126 (Jilin Sino-Microelectronics) component page: datasheet pinout, KiCad symbol, footprint and 3D.",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
  },
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
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    "README.md",
    "3dd4242dm-126.kicad_sym",
    "3dd4242dm-126.kicad_mod",
    "3dd4242dm-126.glb",
    "3dd4242dm-126.step",
    "3dd4242dm-126.lbr",
    "docs/hero.png",
    "docs/3dd4242dm-126-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "3dd4242dm-126-hero.glb",
    "3dd4242dm-126-hero.overlay.json",
    "3dd4242dm-126-etched.glb"
  ],
  "visibility": {
    "public": true
  }
}