BT134-800T

{
  "schema_version": 1,
  "type": "component",
  "slug": "bt134-800t",
  "title": "BT134-800T",
  "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",
    "bt134-800t",
    "factory-2.0.0",
    "extractor-text"
  ],
  "component": {
    "mpn": "BT134-800T",
    "manufacturer": "WEIDA",
    "package": "TO-252",
    "pin_count": 3,
    "category": "Transistors/Thyristors",
    "subcategory": "Thyristors (SCR)/Modules",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8590234177103822848",
    "parts": {
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      "footprint": "bt134-800t.kicad_mod",
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      "lbr": "bt134-800t.lbr"
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    "distributor_links": {
      "lcsc": "C2901112"
    },
    "distributor_check": {
      "checked_at": "2026-10-19T00:20:21Z",
      "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 1 of the triac (MT1), the current return terminal; the part is rated 4 A IT(RMS) and 800 V VDRM/VRRM."
      },
      {
        "number": "2",
        "name": "T2",
        "type": "passive",
        "description": "Main terminal 2 of the triac (MT2); the datasheet gives IT(RMS) of 4 A and VDRM/VRRM of 600/800 V."
      },
      {
        "number": "3",
        "name": "G",
        "type": "input",
        "description": "Gate trigger input; IGT max is 5 mA (quadrants I-II-III) and 5 mA to 25 mA (quadrant IV, by grade), VGT max 1.3 V, peak gate current 2 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: The datasheet shows pins 1, 2 and 3 for TO-252-4R only as labels on the photo, and the pin-to-functi; The ordering code in the datasheet has a grade suffix (T/D/E) that the MPN BT134-800T does not show.",
          "vision extraction: provenance cannot be text-verified; needs consensus"
        ],
        "pages_sent": 9,
        "cost_usd": 0.2338,
        "at": "2026-10-19T00:20:08"
      },
      "datasheet": {
        "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8590234177103822848",
        "pages": 9,
        "sha256": "8d609ec182d0fef5",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 3,
        "described": 3,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
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      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
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        "file": "bt134-800t.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,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "3eb4c99603a4fe837c2fe9308bc174769ded87a785a0df48d2dc441432ee8b4c",
        "checked": "2026-10-19",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "bt134-800t-etched.step",
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        "sha256": "fce9227aa9c6b65894cbfb824956dac078daa0577d62a022fda52ef96f21cf4d",
        "checked": "2026-10-19",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "WEIDA",
      "Package": "TO-252",
      "Category": "Transistors/Thyristors",
      "Pins": "3"
    },
    "characteristics": {
      "version": 1,
      "source": "datasheet",
      "datasheet_sha256": "8d609ec182d0fef588325ed77677d119c5b3ad2817c4e3a3a904e60118a6d142",
      "rows": [
        {
          "name": "Storage junction temperature range",
          "symbol": "Tstg",
          "kind": "absolute_maximum",
          "unit": "℃",
          "min": -40,
          "typ": null,
          "max": 150,
          "conditions": "",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Operating junction temperature range",
          "symbol": "Tj",
          "kind": "absolute_maximum",
          "unit": "℃",
          "min": -40,
          "typ": null,
          "max": 125,
          "conditions": "",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Repetitive peak off-state voltage (800 V variant)",
          "symbol": "VDRM",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 800,
          "conditions": "Tj=25℃",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Repetitive peak reverse voltage (800 V variant)",
          "symbol": "VRRM",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 800,
          "conditions": "Tj=25℃",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "RMS on-state current",
          "symbol": "IT(RMS)",
          "kind": "absolute_maximum",
          "unit": "A",
          "min": null,
          "typ": null,
          "max": 4,
          "conditions": "",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Non repetitive surge peak on-state current",
          "symbol": "ITSM",
          "kind": "absolute_maximum",
          "unit": "A",
          "min": null,
          "typ": null,
          "max": 25,
          "conditions": "full cycle, F=50Hz",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "I2t value for fusing",
          "symbol": "I2t",
          "kind": "absolute_maximum",
          "unit": "A2s",
          "min": null,
          "typ": null,
          "max": 3.1,
          "conditions": "tp=10ms",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Critical rate of rise of on-state current",
          "symbol": "dI/dt",
          "kind": "absolute_maximum",
          "unit": "A/μs",
          "min": null,
          "typ": null,
          "max": 50,
          "conditions": "IG=2×IGT, Quadrant Ⅰ-Ⅱ-Ⅲ",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Critical rate of rise of on-state current",
          "symbol": "dI/dt",
          "kind": "absolute_maximum",
          "unit": "A/μs",
          "min": null,
          "typ": null,
          "max": 10,
          "conditions": "IG=2×IGT, Quadrant Ⅳ",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Peak gate current",
          "symbol": "IGM",
          "kind": "absolute_maximum",
          "unit": "A",
          "min": null,
          "typ": null,
          "max": 2,
          "conditions": "",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Average gate power dissipation",
          "symbol": "PG(AV)",
          "kind": "absolute_maximum",
          "unit": "W",
          "min": null,
          "typ": null,
          "max": 0.5,
          "conditions": "",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Peak gate power",
          "symbol": "PGM",
          "kind": "absolute_maximum",
          "unit": "W",
          "min": null,
          "typ": null,
          "max": 5,
          "conditions": "",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Gate trigger current (T sensitivity)",
          "symbol": "IGT",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": null,
          "max": 5,
          "conditions": "VD=12V, RL=33Ω, Quadrant Ⅰ-Ⅱ-Ⅲ",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Gate non-trigger voltage",
          "symbol": "VGD",
          "kind": "electrical",
          "unit": "V",
          "min": 0.2,
          "typ": null,
          "max": null,
          "conditions": "VD=VDRM, Tj=125℃, RL=3.3kΩ, Quadrant Ⅰ-Ⅱ-Ⅲ-Ⅳ",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Holding current (T sensitivity)",
          "symbol": "IH",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": null,
          "max": 5,
          "conditions": "IT=100mA",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Latching current (T sensitivity)",
          "symbol": "IL",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": null,
          "max": 8,
          "conditions": "IG=1.2IGT, Quadrant Ⅰ-Ⅲ-Ⅳ",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Latching current (T sensitivity)",
          "symbol": "IL",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": null,
          "max": 12,
          "conditions": "IG=1.2IGT, Quadrant Ⅱ",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Critical rate of rise of off-state voltage (T sensitivity)",
          "symbol": "dV/dt",
          "kind": "electrical",
          "unit": "V/µs",
          "min": 10,
          "typ": null,
          "max": null,
          "conditions": "VD=0.66×VDRM, Tj=125℃, gate open",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "On-state voltage",
          "symbol": "VTM",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 1.7,
          "conditions": "ITM=5A, tp=380μs, Tj=25℃",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Repetitive peak off-state and reverse current",
          "symbol": "IDRM/IRRM",
          "kind": "electrical",
          "unit": "µA",
          "min": null,
          "typ": null,
          "max": 5,
          "conditions": "VDRM=VRRM, Tj=25℃",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Repetitive peak off-state and reverse current",
          "symbol": "IDRM/IRRM",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": null,
          "max": 0.5,
          "conditions": "VDRM=VRRM, Tj=125℃",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Gate trigger voltage",
          "symbol": "VGT",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": 1.3,
          "max": null,
          "conditions": "Quadrant Ⅰ-Ⅱ-Ⅲ-Ⅳ",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Thermal resistance junction to case (AC), TO-252-4R",
          "symbol": "Rth(j-c)",
          "kind": "thermal",
          "unit": "℃/W",
          "min": null,
          "typ": 3.8,
          "max": null,
          "conditions": "junction to case (AC), TO-252-4R",
          "source_page": 3,
          "source": "datasheet"
        }
      ]
    }
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  "discovery_triggers": [
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  "discovery_pitch": "BT134-800T (WEIDA) component page: datasheet pinout, KiCad symbol, footprint and 3D.",
  "author": {
    "name": "Ray"
  },
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