MMBTRA302E

{
  "slug": "mmbtra302e",
  "version": "0.1.0",
  "type": "component",
  "description": "ST Semtech Digital Transistors, SOT-523. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "transistors-thyristors",
    "mmbtra302e",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "mmbtra302e.kicad_sym",
    "mmbtra302e.kicad_mod",
    "mmbtra302e.glb",
    "mmbtra302e.step",
    "mmbtra302e.lbr",
    "docs/hero.png",
    "docs/mmbtra302e-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "mmbtra302e-hero.glb",
    "mmbtra302e-hero.overlay.json"
  ],
  "component": {
    "mpn": "MMBTRA302E",
    "manufacturer": "ST Semtech",
    "package": "SOT-523",
    "pin_count": 3,
    "category": "Transistors/Thyristors",
    "subcategory": "Digital Transistors",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8603065791419985920",
    "parts": {
      "symbol": "mmbtra302e.kicad_sym",
      "footprint": "mmbtra302e.kicad_mod",
      "model_3d": "mmbtra302e-hero.glb",
      "model_3d_plain": "mmbtra302e.glb",
      "model_3d_step": "mmbtra302e-etched.step",
      "model_3d_step_plain": "mmbtra302e.step",
      "lbr": "mmbtra302e.lbr"
    },
    "distributor_links": {
      "lcsc": "C7464206"
    },
    "distributor_check": {
      "checked_at": "2026-10-09T23:24:14Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "deferred",
        "error": "shared DigiKey quota guard: 539 calls left today"
      },
      "mouser": {
        "pn": null,
        "status": "no match"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "Base",
        "type": "input",
        "description": "Base (input) pin connected through built-in R1 = 10 kΩ, with R2 = 10 kΩ from the transistor base to emitter; -VEBO max 30 V (and -10 V as printed)."
      },
      {
        "number": "2",
        "name": "Emitter",
        "type": "passive",
        "description": "Emitter (common) of the PNP digital transistor, which is the common terminal for the bias network."
      },
      {
        "number": "3",
        "name": "Collector",
        "type": "output",
        "description": "Collector (output) pin of the PNP transistor, rated -VCEO 50 V, -VCBO 50 V and -IC 100 mA maximum."
      }
    ],
    "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 pin assignment comes from the page 1 package picture (1.Base 2.Emitter 3.Collector). The Emitter",
          "vision extraction: provenance cannot be text-verified; needs consensus"
        ],
        "pages_sent": 9,
        "cost_usd": 0.2408,
        "at": "2026-10-09T23:21:11"
      },
      "datasheet": {
        "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8603065791419985920",
        "pages": 9,
        "sha256": "7ae9ab37e46455d7",
        "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": "mmbtra302e.step",
        "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": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "82c5281034b78831f1fb542b1ac99e1590ed9eb4f9416362858a0ac14813cc19",
        "checked": "2026-10-09",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "mmbtra302e-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": "f1356a17642866fef65fc5d5af4cf4ae1107c5cbd8d79e5c3eee710229bcbdcb",
        "checked": "2026-10-17",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}