T3035H-8I

{
  "schema_version": 1,
  "type": "component",
  "slug": "t3035h-8i",
  "title": "T3035H-8I",
  "brief": "STMicroelectronics TRIACs, TO-220AB. 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",
    "t3035h-8i",
    "factory-2.0.0",
    "extractor-text"
  ],
  "component": {
    "mpn": "T3035H-8I",
    "manufacturer": "STMicroelectronics",
    "package": "TO-220AB",
    "pin_count": 3,
    "category": "Transistors",
    "subcategory": "TRIACs",
    "datasheet": "https://www.st.com/resource/en/datasheet/t3035h-8i.pdf",
    "parts": {
      "symbol": "t3035h-8i.kicad_sym",
      "footprint": "t3035h-8i.kicad_mod",
      "model_3d": "t3035h-8i-hero.glb",
      "model_3d_plain": "t3035h-8i-etched.glb",
      "model_3d_step": "t3035h-8i-etched.step",
      "model_3d_step_plain": "t3035h-8i.step",
      "lbr": "t3035h-8i.lbr"
    },
    "distributor_links": {
      "lcsc": "C472647",
      "digikey": "497-18254-ND",
      "mouser": "511-T3035H-8I"
    },
    "distributor_check": {
      "checked_at": "2026-10-27T01:26:02Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "497-18254-ND",
        "status": "found",
        "lifecycle": "Active"
      },
      "mouser": {
        "pn": "511-T3035H-8I",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "A1",
        "type": "passive",
        "description": "Main terminal A1 (reference terminal for A2 and gate); the triac blocks 800 V (VDRM/VRRM) symmetrically and carries 30 A RMS on-state current."
      },
      {
        "number": "2",
        "name": "A2",
        "type": "passive",
        "description": "Main terminal A2, connected to the AC load side; the tab is insulated (2.5 kV RMS, 1 minute) so it is not electrically connected to the tab."
      },
      {
        "number": "3",
        "name": "G",
        "type": "input",
        "description": "Gate trigger input; IGT 5 mA min to 35 mA max and VGT max 1.3 V at VD = 12 V, RL = 30 Ω, in quadrants I, II and III, with peak gate current limited to 4 A (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 never prints pin numbers. Page 1 only labels the leads A1, A2, G in left-to-right; The datasheet does not say how the insulated tab is connected. It states only that an internal ceram",
          "vision extraction: provenance cannot be text-verified; needs consensus"
        ],
        "pages_sent": 11,
        "cost_usd": 0.1586,
        "at": "2026-10-27T01:25:31"
      },
      "datasheet": {
        "url": "https://www.st.com/resource/en/datasheet/t3035h-8i.pdf",
        "pages": 11,
        "sha256": "26d62689eadb622d",
        "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": "t3035h-8i.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": "2026-10-27",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "t3035h-8i-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": "9415a9801c3cf68dca37f400f7d27bdd52e2487c2966264ea8bdc6200abc5e44",
        "checked": "2026-10-27",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "STMicroelectronics",
      "Package": "TO-220AB",
      "Category": "Transistors",
      "Pins": "3"
    },
    "characteristics": {
      "version": 1,
      "source": "datasheet",
      "datasheet_sha256": "26d62689eadb622daa22e1d42799f5f5556abdda29909219c3fff5b00c4fc971",
      "rows": [
        {
          "name": "RMS on-state current (full sine wave)",
          "symbol": "IT(RMS)",
          "kind": "absolute_maximum",
          "unit": "A",
          "min": null,
          "typ": null,
          "max": 30,
          "conditions": "Tc = 91 °C",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Non repetitive surge peak on-state current",
          "symbol": "ITSM",
          "kind": "absolute_maximum",
          "unit": "A",
          "min": null,
          "typ": null,
          "max": 283,
          "conditions": "full cycle, Tj initial = 25 °C, t = 16.7 ms",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Non repetitive surge peak on-state current",
          "symbol": "ITSM",
          "kind": "absolute_maximum",
          "unit": "A",
          "min": null,
          "typ": null,
          "max": 270,
          "conditions": "full cycle, Tj initial = 25 °C, t = 20 ms",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "I2t value for fusing",
          "symbol": "I2t",
          "kind": "absolute_maximum",
          "unit": "A2s",
          "min": null,
          "typ": null,
          "max": 482,
          "conditions": "tp = 10 ms",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Critical rate of rise of on-state current",
          "symbol": "dl/dt",
          "kind": "absolute_maximum",
          "unit": "A/µs",
          "min": null,
          "typ": null,
          "max": 100,
          "conditions": "IG = 2 x IGT, tr ≤ 100 ns, f = 100 Hz, Tj = 25 °C",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Repetitive peak off-state voltage",
          "symbol": "VDRM/VRRM",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 800,
          "conditions": "",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Non repetitive peak off-state voltage",
          "symbol": "VDSM/VRSM",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 900,
          "conditions": "tp = 10 ms, Tj = 25 °C",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Peak gate current",
          "symbol": "IGM",
          "kind": "absolute_maximum",
          "unit": "A",
          "min": null,
          "typ": null,
          "max": 4,
          "conditions": "tp = 20 µs, Tj = 150 °C",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Maximum gate power dissipation",
          "symbol": "PGM",
          "kind": "absolute_maximum",
          "unit": "W",
          "min": null,
          "typ": null,
          "max": 5,
          "conditions": "",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Average gate power dissipation",
          "symbol": "PG(AV)",
          "kind": "absolute_maximum",
          "unit": "W",
          "min": null,
          "typ": null,
          "max": 1,
          "conditions": "Tj = 150 °C",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Storage temperature range",
          "symbol": "Tstg",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": -40,
          "typ": null,
          "max": 150,
          "conditions": "",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Operating junction temperature range",
          "symbol": "Tj",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": -40,
          "typ": null,
          "max": 150,
          "conditions": "",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Maximum lead temperature for soldering",
          "symbol": "TL",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": null,
          "typ": null,
          "max": 260,
          "conditions": "during 10 s",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Insulation RMS voltage",
          "symbol": "VINS",
          "kind": "absolute_maximum",
          "unit": "kV",
          "min": null,
          "typ": null,
          "max": 2.5,
          "conditions": "1 minute",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Gate trigger current",
          "symbol": "IGT",
          "kind": "electrical",
          "unit": "mA",
          "min": 5,
          "typ": null,
          "max": 35,
          "conditions": "VD = 12 V, RL = 30 Ω, quadrants I - II - III",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Gate trigger voltage",
          "symbol": "VGT",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 1.3,
          "conditions": "VD = 12 V, RL = 30 Ω, quadrants I - II - III",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Gate non-trigger voltage",
          "symbol": "VGD",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 0.15,
          "conditions": "VD = VDRM, RL = 3.3 kΩ, Tj = 150 °C, quadrants I - II - III",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Latching current",
          "symbol": "IL",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": null,
          "max": 75,
          "conditions": "IG = 1.2 x IGT, quadrants I - III",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Latching current",
          "symbol": "IL",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": null,
          "max": 90,
          "conditions": "IG = 1.2 x IGT, quadrant II",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Holding current",
          "symbol": "IH",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": null,
          "max": 60,
          "conditions": "IT = 500 mA, gate open",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Static dV/dt",
          "symbol": "dV/dt",
          "kind": "electrical",
          "unit": "V/µs",
          "min": 1500,
          "typ": null,
          "max": null,
          "conditions": "VD = 536 V, gate open, Tj = 150 °C",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Critical rate of decrease of commutating current",
          "symbol": "(dl/dt)c",
          "kind": "electrical",
          "unit": "A/ms",
          "min": 25,
          "typ": null,
          "max": null,
          "conditions": "Without snubber network, Tj = 150 °C",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "On-state voltage",
          "symbol": "VTM",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 1.55,
          "conditions": "IT = 42 A, tp = 380 µs, Tj = 25 °C",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Threshold voltage",
          "symbol": "VTO",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 0.83,
          "conditions": "Tj = 150 °C",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Dynamic resistance",
          "symbol": "RD",
          "kind": "electrical",
          "unit": "mΩ",
          "min": null,
          "typ": null,
          "max": 16,
          "conditions": "Tj = 150 °C",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Off-state/reverse leakage current",
          "symbol": "IDRM/IRRM",
          "kind": "electrical",
          "unit": "µA",
          "min": null,
          "typ": null,
          "max": 5,
          "conditions": "VDRM = VRRM = 800 V, Tj = 25 °C",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Off-state/reverse leakage current",
          "symbol": "IDRM/IRRM",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": null,
          "max": 8.5,
          "conditions": "VDRM = VRRM = 800 V, Tj = 150 °C",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Off-state/reverse leakage current",
          "symbol": "IDRM/IRRM",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": null,
          "max": 3.6,
          "conditions": "VDRM = VRRM = 400 V, peak voltage, Tj = 150 °C",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Junction to case thermal resistance (AC)",
          "symbol": "Rth(j-c)",
          "kind": "thermal",
          "unit": "°C/W",
          "min": null,
          "typ": null,
          "max": 1.6,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Junction to ambient thermal resistance",
          "symbol": "Rth(j-a)",
          "kind": "thermal",
          "unit": "°C/W",
          "min": null,
          "typ": 60,
          "max": null,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        }
      ]
    }
  },
  "variants": [],
  "sections": [
    "hero",
    "viewers",
    "readme",
    "breadcrumbs",
    "info"
  ],
  "discovery_triggers": [
    "t3035h-8i"
  ],
  "discovery_pitch": "T3035H-8I (STMicroelectronics) component page: datasheet pinout, KiCad symbol, footprint and 3D.",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
  },
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "t3035h-8i.kicad_sym",
    "t3035h-8i.kicad_mod",
    "t3035h-8i.glb",
    "t3035h-8i.step",
    "t3035h-8i.lbr",
    "docs/hero.png",
    "docs/t3035h-8i-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "t3035h-8i-hero.glb",
    "t3035h-8i-hero.overlay.json",
    "t3035h-8i-etched.glb"
  ],
  "visibility": {
    "public": true
  }
}