T1635H-8T

{
  "slug": "t1635h-8t",
  "version": "0.1.0",
  "type": "component",
  "description": "STMicroelectronics Thyristors (SCR)/Modules, TO-220AB. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "transistors-thyristors",
    "t1635h-8t",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "t1635h-8t.kicad_sym",
    "t1635h-8t.kicad_mod",
    "t1635h-8t.glb",
    "t1635h-8t.step",
    "t1635h-8t.lbr",
    "docs/hero.png",
    "docs/t1635h-8t-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "t1635h-8t-hero.glb",
    "t1635h-8t-hero.overlay.json"
  ],
  "component": {
    "mpn": "T1635H-8T",
    "manufacturer": "STMicroelectronics",
    "package": "TO-220AB",
    "pin_count": 3,
    "category": "Transistors/Thyristors",
    "subcategory": "Thyristors (SCR)/Modules",
    "datasheet": "https://www.st.com/resource/en/datasheet/t1635h-8t.pdf",
    "parts": {
      "symbol": "t1635h-8t.kicad_sym",
      "footprint": "t1635h-8t.kicad_mod",
      "model_3d": "t1635h-8t-hero.glb",
      "model_3d_plain": "t1635h-8t.glb",
      "model_3d_step": "t1635h-8t-etched.step",
      "model_3d_step_plain": "t1635h-8t.step",
      "lbr": "t1635h-8t.lbr"
    },
    "distributor_links": {
      "lcsc": "C3614617",
      "digikey": "497-T1635H-8T-ND",
      "mouser": "511-T1635H-8T"
    },
    "distributor_check": {
      "checked_at": "2026-10-11T22:55:35Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "497-T1635H-8T-ND",
        "status": "found",
        "lifecycle": "Active"
      },
      "mouser": {
        "pn": "511-T1635H-8T",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "A1",
        "type": "passive",
        "description": "Main terminal A1 of the triac, the reference terminal for gate triggering and for the A2 polarity in the dV/dt and (dl/dt)c specifications (800 V VDRM/VRRM, 16 A IT(RMS))."
      },
      {
        "number": "2",
        "name": "A2",
        "type": "passive",
        "description": "Main terminal A2 of the triac, connected to the metal tab, rated for 800 V repetitive peak off-state voltage and 16 A RMS on-state current at Tc = 131 °C."
      },
      {
        "number": "3",
        "name": "G",
        "type": "input",
        "description": "Gate trigger input, with IGT of 5 mA min to 35 mA max and VGT max 1.3 V in quadrants I-II-III (VD = 12 V, RL = 30 Ω), and peak gate current IGM of 4 A for tp = 20 µs."
      }
    ],
    "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 datasheet text and drawings label A1, A2 and G on the 3D package view but have no numbered pin t; The metal tab is also marked A2 on page 1 and is not a numbered lead. It is not listed as a separate",
          "vision extraction: provenance cannot be text-verified; needs consensus"
        ],
        "pages_sent": 11,
        "cost_usd": 0.1421,
        "at": "2026-10-11T22:55:20"
      },
      "datasheet": {
        "url": "https://www.st.com/resource/en/datasheet/t1635h-8t.pdf",
        "pages": 11,
        "sha256": "46bfebd5e48acd03",
        "source_tier": "mfr"
      },
      "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": "t1635h-8t.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "body on z = 0, through-hole leads below",
        "extents_mm": [
          10.25,
          4.455,
          28.525
        ],
        "zmin_mm": -9.75,
        "centre_offset_mm": 0.932,
        "footprint_binding": "identity",
        "sha256": "7cb065d935df5771f0ba6e48ddd180863a121af76483dad7f18e667a7b68204a",
        "checked": "2026-10-11",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "t1635h-8t-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "body on z = 0, through-hole leads below",
        "extents_mm": [
          10.25,
          4.455,
          28.525
        ],
        "zmin_mm": -9.75,
        "centre_offset_mm": 0.932,
        "footprint_binding": "identity",
        "sha256": "d195ac5aaae6f40b9677c10941a0b73959cf427d49a7739af83e8ed317611336",
        "checked": "2026-10-11",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}