TDM3428B

{
  "slug": "tdm3428b",
  "version": "0.1.0",
  "type": "component",
  "description": "Techcode Semicon MOSFETs, TO-252. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "transistors",
    "tdm3428b",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "tdm3428b.kicad_sym",
    "tdm3428b.kicad_mod",
    "tdm3428b.glb",
    "tdm3428b.step",
    "tdm3428b.lbr",
    "docs/hero.png",
    "docs/tdm3428b-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "tdm3428b-hero.glb",
    "tdm3428b-hero.overlay.json",
    "tdm3428b-etched.glb"
  ],
  "component": {
    "mpn": "TDM3428B",
    "manufacturer": "Techcode Semicon",
    "package": "TO-252",
    "pin_count": 3,
    "category": "Transistors",
    "subcategory": "MOSFETs",
    "datasheet": "https://datasheet.lcsc.com/datasheet/pdf/0f914f40928eb1ebe14080fafbb71bad.pdf",
    "parts": {
      "symbol": "tdm3428b.kicad_sym",
      "footprint": "tdm3428b.kicad_mod",
      "model_3d": "tdm3428b-hero.glb",
      "model_3d_plain": "tdm3428b-etched.glb",
      "model_3d_step": "tdm3428b-etched.step",
      "model_3d_step_plain": "tdm3428b.step",
      "lbr": "tdm3428b.lbr"
    },
    "distributor_links": {
      "lcsc": "C232917"
    },
    "distributor_check": {
      "checked_at": "2026-10-30T17:31:44Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "no match"
      },
      "mouser": {
        "pn": null,
        "status": "no match"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "G",
        "type": "input",
        "description": "Gate terminal of the N-channel MOSFET, with a gate-source voltage limit of ±20 V and a gate threshold of 1.4 V min to 2.5 V max at 250 μA."
      },
      {
        "number": "2",
        "name": "D",
        "type": "passive",
        "description": "Drain terminal, also the exposed tab, with a drain-source voltage rating of 30 V and a continuous drain current of 45 A at TC=25℃ (limited by bonding wire)."
      },
      {
        "number": "3",
        "name": "S",
        "type": "passive",
        "description": "Source terminal of the N-channel MOSFET, with a diode continuous forward current of 5 A at TC=25℃."
      }
    ],
    "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 drain tab is not shown as a separate pin number. The datasheet gives pin numbers only in the sch",
          "vision extraction: provenance cannot be text-verified; needs consensus"
        ],
        "pages_sent": 7,
        "cost_usd": 0.2304,
        "at": "2026-10-30T17:31:36"
      },
      "datasheet": {
        "url": "https://datasheet.lcsc.com/datasheet/pdf/0f914f40928eb1ebe14080fafbb71bad.pdf",
        "pages": 7,
        "sha256": "cd1ca45992819f0a",
        "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": "tdm3428b.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": "2026-10-30",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "tdm3428b-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": "6751d454eef49290c77a7206db6940a64dafc904df5b052f122ff35f6a1df465",
        "checked": "2026-10-30",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ],
    "package_dims": {
      "package_code": "TO252-3",
      "source_page": 6,
      "D": {
        "nom_mm": 6.1,
        "range_mm": [
          5.98,
          6.22
        ]
      },
      "E1": {
        "nom_mm": 6.6,
        "range_mm": [
          6.4,
          6.8
        ]
      },
      "E": {
        "nom_mm": 10.1,
        "range_mm": [
          9.4,
          10.5
        ]
      },
      "e": {
        "nom_mm": 2.286,
        "range_mm": [
          null,
          null
        ]
      },
      "A": {
        "nom_mm": 2.3,
        "range_mm": [
          2.2,
          2.4
        ]
      },
      "source": "datasheet package drawing, every number found on its page (extract_pins --task dims)",
      "model_check": {
        "file": "tdm3428b.step",
        "verdict": "PASS",
        "reasons": [
          "height and body within the datasheet's package drawing"
        ],
        "by": "factory/package_fit.py"
      }
    }
  }
}