BT151

{
  "schema_version": 1,
  "type": "component",
  "slug": "bt151",
  "title": "BT151",
  "brief": "WEIDA Thyristors (SCR)/Modules, TO-252. 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",
    "bt151",
    "factory-2.0.0",
    "extractor-text"
  ],
  "component": {
    "mpn": "BT151",
    "manufacturer": "WEIDA",
    "package": "TO-252",
    "pin_count": 3,
    "category": "Transistors/Thyristors",
    "subcategory": "Thyristors (SCR)/Modules",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588944672189898752",
    "parts": {
      "symbol": "bt151.kicad_sym",
      "footprint": "bt151.kicad_mod",
      "model_3d": "bt151-etched.glb",
      "model_3d_plain": "bt151.glb",
      "model_3d_step": "bt151-etched.step",
      "model_3d_step_plain": "bt151.step",
      "lbr": "bt151.lbr"
    },
    "distributor_links": {
      "lcsc": "C2900856"
    },
    "pins": [
      {
        "number": "1",
        "name": "K",
        "type": "passive",
        "description": "Cathode; main current output terminal, rated IT(RMS) = 12 A, VRRM = 650 V repetitive peak reverse voltage."
      },
      {
        "number": "2",
        "name": "A",
        "type": "passive",
        "description": "Anode; main current input terminal, rated IT(RMS) = 12 A, VDRM = 650 V repetitive peak off-state voltage; exposed metal tab is also connected to this pin (Rth(j-c) = 1.4 °C/W)."
      },
      {
        "number": "3",
        "name": "G",
        "type": "input",
        "description": "Gate; trigger input for SCR turn-on, IGT = 15 mA max, VGT = 1.5 V max at VD = 12 V, RL = 33 Ω."
      }
    ],
    "provenance": {
      "extractor": "extract_pins 0.2",
      "factory_chain": {
        "factory": "2.0.0",
        "extractor": "extract_pins 0.2",
        "primary_model": "claude-sonnet-4-6",
        "primary_mode": "text+vision",
        "consensus_model": "claude-opus-4-7",
        "consensus": "agreed",
        "guards": "pin_guards 0.1: passed",
        "guard_notes": [
          "extractor flagged: The TO-252-4R designation implies 4 electrical connections (3 leads + exposed tab), but the datashee; The datasheet title reads 'BT151 Series 12A Triacs' but the ordering information and device descript",
          "vision extraction: provenance cannot be text-verified; needs consensus"
        ],
        "pages_sent": 8,
        "cost_usd": 0.3168,
        "at": "2026-09-18T00:49:05"
      },
      "datasheet": {
        "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588944672189898752",
        "pages": 8,
        "sha256": "93ea4f9f82b91c7c",
        "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": "bt151.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": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "bt151-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": "8d1edd247352a890d9d44b21a4c7279465cce773e16c1c153fdb6834f9843d4f",
        "checked": "2026-10-16",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "WEIDA",
      "Package": "TO-252",
      "Category": "Transistors/Thyristors",
      "Pins": "3"
    }
  },
  "variants": [],
  "sections": [
    "hero",
    "viewers",
    "readme",
    "breadcrumbs",
    "info"
  ],
  "discovery_triggers": [
    "bt151"
  ],
  "discovery_pitch": "BT151 (WEIDA) component page with datasheet-verified CAD.",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
  },
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "bt151.kicad_sym",
    "bt151.kicad_mod",
    "bt151.glb",
    "bt151.step",
    "bt151.lbr",
    "docs/hero.png",
    "docs/bt151-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html"
  ],
  "visibility": {
    "public": true
  },
  "updated_at": "2026-09-24T18:13:44.927Z"
}