MMBTRC402E

{
  "schema_version": 1,
  "type": "component",
  "slug": "mmbtrc402e",
  "title": "MMBTRC402E",
  "brief": "ST Semtech Digital Transistors, SOT-523. 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",
    "mmbtrc402e",
    "factory-2.0.0",
    "extractor-text"
  ],
  "component": {
    "mpn": "MMBTRC402E",
    "manufacturer": "ST Semtech",
    "package": "SOT-523",
    "pin_count": 3,
    "category": "Transistors/Thyristors",
    "subcategory": "Digital Transistors",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8603065792515104768",
    "parts": {
      "symbol": "mmbtrc402e.kicad_sym",
      "footprint": "mmbtrc402e.kicad_mod",
      "model_3d": "mmbtrc402e-hero.glb",
      "model_3d_plain": "mmbtrc402e.glb",
      "model_3d_step": "mmbtrc402e-etched.step",
      "model_3d_step_plain": "mmbtrc402e.step",
      "lbr": "mmbtrc402e.lbr"
    },
    "distributor_links": {
      "lcsc": "C7464207"
    },
    "distributor_check": {
      "checked_at": "2026-10-09T22:59:28Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "deferred",
        "error": "shared DigiKey quota guard: 540 calls left today"
      },
      "mouser": {
        "pn": null,
        "status": "no match"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "Base",
        "type": "input",
        "description": "Base (input) connected through R1 = 10 kΩ, with R2 = 10 kΩ to emitter; maximum input voltage VEBO is 30 V and -10 V."
      },
      {
        "number": "2",
        "name": "Emitter",
        "type": "passive",
        "description": "Emitter (common) of the NPN transistor, connected to the R2 bias resistor, with maximum collector current IC of 100 mA."
      },
      {
        "number": "3",
        "name": "Collector",
        "type": "output",
        "description": "Collector (output) with VCBO rating of 50 V, maximum IC of 100 mA and VCE(SAT) max of 0.3 V at IC = 10 mA."
      }
    ],
    "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: Emitter pin type chosen as passive (common/ground-like terminal of a transistor); datasheet does not",
          "vision extraction: provenance cannot be text-verified; needs consensus"
        ],
        "pages_sent": 9,
        "cost_usd": 0.2333,
        "at": "2026-10-09T22:56:51"
      },
      "datasheet": {
        "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8603065792515104768",
        "pages": 9,
        "sha256": "95eebcd1d9067e39",
        "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": [
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        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          1.5,
          1.6,
          0.8
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "7d7f35f9c20a5e5271ef78fc6ee9cbfd54bd507f53e8b7ba93909c059e83869e",
        "checked": "2026-10-09",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "mmbtrc402e-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          1.5,
          1.6,
          0.8
        ],
        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "fe61507b20c4b3246725c1e05380421dac880c691d87849d8bcb541544d0940d",
        "checked": "2026-10-17",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "ST Semtech",
      "Package": "SOT-523",
      "Category": "Transistors/Thyristors",
      "Pins": "3"
    }
  },
  "variants": [],
  "sections": [
    "hero",
    "viewers",
    "readme",
    "breadcrumbs",
    "info"
  ],
  "discovery_triggers": [
    "mmbtrc402e"
  ],
  "discovery_pitch": "MMBTRC402E (ST Semtech) 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",
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    "mmbtrc402e.step",
    "mmbtrc402e.lbr",
    "docs/hero.png",
    "docs/mmbtrc402e-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "mmbtrc402e-hero.glb",
    "mmbtrc402e-hero.overlay.json"
  ],
  "visibility": {
    "public": true
  }
}