BT137

{
  "slug": "bt137",
  "version": "0.1.0",
  "type": "component",
  "description": "JUXING Thyristors (SCR)/Modules, TO-252. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "transistors-thyristors",
    "bt137",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "bt137.kicad_sym",
    "bt137.kicad_mod",
    "bt137.glb",
    "bt137.step",
    "bt137.lbr",
    "docs/hero.png",
    "docs/bt137-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "bt137-hero.glb",
    "bt137-hero.overlay.json",
    "bt137-etched.glb"
  ],
  "component": {
    "mpn": "BT137",
    "manufacturer": "JUXING",
    "package": "TO-252",
    "pin_count": 3,
    "category": "Transistors/Thyristors",
    "subcategory": "Thyristors (SCR)/Modules",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8603392932640530432",
    "parts": {
      "symbol": "bt137.kicad_sym",
      "footprint": "bt137.kicad_mod",
      "model_3d": "bt137-hero.glb",
      "model_3d_plain": "bt137-etched.glb",
      "model_3d_step": "bt137-etched.step",
      "model_3d_step_plain": "bt137.step",
      "lbr": "bt137.lbr"
    },
    "distributor_links": {
      "lcsc": "C22440667"
    },
    "distributor_check": {
      "checked_at": "2026-10-19T07:14:29Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "no match"
      },
      "mouser": {
        "pn": null,
        "status": "no match"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "T1",
        "type": "passive",
        "description": "Main terminal T1 of the triac; the datasheet lists it as PIN1 and the symbol shows it opposite T2."
      },
      {
        "number": "2",
        "name": "T2",
        "type": "passive",
        "description": "Main terminal T2 of the triac, on pin 2 and the tab; blocks up to VDRM/VRRM of 800 V and carries IT(RMS) of 8 A."
      },
      {
        "number": "3",
        "name": "G",
        "type": "input",
        "description": "Gate trigger input; IGT is at most 35 mA in quadrants I, II and III and at most 80 mA in quadrant IV, with peak gate current IGM of 1 A."
      }
    ],
    "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: Tab connection is not stated explicitly. The package drawing labels the tab as pin 2 (T2), and the o; The electrical characteristics table text lost some min/typ/max column alignment. The 35 mA and 80 m",
          "vision extraction: provenance cannot be text-verified; needs consensus"
        ],
        "pages_sent": 3,
        "cost_usd": 0.2038,
        "at": "2026-10-19T07:12:10"
      },
      "datasheet": {
        "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8603392932640530432",
        "pages": 3,
        "sha256": "5a52d7dd8a977794",
        "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": "bt137.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": "2026-10-19",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "bt137-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": "c293079becacb93f62a2a8ab60a1c721594c3fb8218be749d9626984172b7811",
        "checked": "2026-10-19",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}