main
Ray Set visibility: public b020b7a 17d ago
{
  "schema_version": 1,
  "type": "component",
  "slug": "q4040j7tp",
  "title": "Q4040J7TP",
  "brief": "Littelfuse Thyristors (SCR)/Modules, TO-218-3. 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",
    "q4040j7tp",
    "factory-2.0.0",
    "extractor-text"
  ],
  "component": {
    "mpn": "Q4040J7TP",
    "manufacturer": "Littelfuse",
    "package": "TO-218-3",
    "pin_count": 3,
    "category": "Transistors/Thyristors",
    "subcategory": "Thyristors (SCR)/Modules",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8602598405625421824",
    "parts": {
      "symbol": "q4040j7tp.kicad_sym",
      "footprint": "q4040j7tp.kicad_mod",
      "model_3d": "q4040j7tp-hero.glb",
      "model_3d_plain": "q4040j7tp-etched.glb",
      "model_3d_step": "q4040j7tp-etched.step",
      "model_3d_step_plain": "q4040j7tp.step",
      "lbr": "q4040j7tp.lbr"
    },
    "distributor_links": {
      "lcsc": "C17626963",
      "digikey": "1294-Q4040J7TP-CHP",
      "mouser": "576-Q4040J7TP"
    },
    "distributor_check": {
      "checked_at": "2026-10-19T01:40:22Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "1294-Q4040J7TP-CHP",
        "status": "found",
        "lifecycle": "Active"
      },
      "mouser": {
        "pn": "576-Q4040J7TP",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "MT1",
        "type": "passive",
        "description": "Main terminal 1, to which all device voltages and gate-trigger polarities are referenced (Figure 1); the datasheet gives no separate pin-number marking for this terminal."
      },
      {
        "number": "2",
        "name": "MT2",
        "type": "passive",
        "description": "Main terminal 2, the bidirectional switched terminal; the device is rated for VDRM/VRRM of 400 V for this 400 V variant and IT(RMS) of 40 A at TC = 75 °C."
      },
      {
        "number": "3",
        "name": "Gate",
        "type": "input",
        "description": "Gate trigger input for Qxx40J7 (100 mA max IGT in quadrants I-III, 2.0 V max VGT at VD = 12 V); peak gate current is limited to 4 A (tp = 20 µs, TJ = 125 °C) and average gate power to 0.5 W."
      }
    ],
    "provenance": {
      "extractor": "extract_pins 0.3",
      "factory_chain": {
        "factory": "2.0.0",
        "extractor": "extract_pins 0.3",
        "primary_model": "claude-haiku-5-5",
        "primary_mode": "text",
        "consensus_model": "claude-sonnet-5-5",
        "consensus": "agreed",
        "guards": "pin_guards 0.1: passed",
        "guard_notes": [
          "extractor flagged: The datasheet's TO-218X (J Package) drawing labels the terminals MT1, MT2 and Gate but does not prin; Q4040J7TP is the 400 V (voltage code 40) Qxx40J7 part in the TO-218X J package, sold in tube packing"
        ],
        "pages_sent": 8,
        "cost_usd": 0.1056,
        "at": "2026-10-19T01:40:07"
      },
      "datasheet": {
        "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8602598405625421824",
        "pages": 8,
        "sha256": "bc762ef3ea031978",
        "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": "q4040j7tp.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "body on z = 0, through-hole leads below",
        "extents_mm": [
          14.96,
          4.82,
          32.1
        ],
        "zmin_mm": -9.75,
        "centre_offset_mm": 0.76,
        "footprint_binding": "identity",
        "sha256": "5902af0e840d059a64b690533775dc4c47c81ab237d4f0abf3786a32ff1076ec",
        "checked": "2026-10-19",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "q4040j7tp-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": [
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        ],
        "zmin_mm": -9.75,
        "centre_offset_mm": 0.76,
        "footprint_binding": "identity",
        "sha256": "0e13665a93c289bbe3909b15f3c9493f687cd1b82cbb1c2e4aa9319848ae8e8b",
        "checked": "2026-10-19",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "Littelfuse",
      "Package": "TO-218-3",
      "Category": "Transistors/Thyristors",
      "Pins": "3"
    },
    "appearance": {
      "contacts": {
        "quote": "Lead Bend MIL-STD-750, M-2036 Cond E Terminal Finish 100% Matte Tin-plated.",
        "page": 6,
        "doc": "ds.pdf",
        "plating": "tin"
      },
      "version": 1,
      "datasheet_sha256": "bc762ef3ea031978c336a5e9730d23f6e383a5acdf41ceb78fcba8b3eb809434"
    },
    "characteristics": {
      "version": 1,
      "source": "datasheet",
      "datasheet_sha256": "bc762ef3ea031978c336a5e9730d23f6e383a5acdf41ceb78fcba8b3eb809434",
      "rows": [
        {
          "name": "Gate trigger current (I-II-III)",
          "symbol": "IGT",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": null,
          "max": 100,
          "conditions": "VD = 12V, RL = 60 Ω, I – II – III",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Gate trigger voltage (ALL quadrants)",
          "symbol": "VGT",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 2,
          "conditions": "VD = 12V, RL = 60 Ω, 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, RL = 3.3 kΩ, TJ = 125°C, I – II – III",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Holding current",
          "symbol": "IH",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": null,
          "max": 100,
          "conditions": "IT = 400mA",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Critical rate of rise of off-state voltage (400V)",
          "symbol": "dv/dt",
          "kind": "electrical",
          "unit": "V/μs",
          "min": 700,
          "typ": null,
          "max": null,
          "conditions": "VD = VDRM, Gate Open, TJ = 125°C, 400V",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Critical rate of rise of off-state voltage at commutation",
          "symbol": "(dv/dt)c",
          "kind": "electrical",
          "unit": "V/µs",
          "min": 50,
          "typ": null,
          "max": null,
          "conditions": "(di/dt)c = 21.6 A/ms, TJ = 125°C",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "On-state voltage",
          "symbol": "VTM",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 1.8,
          "conditions": "ITM = 56.6A, tp = 380 µs, TJ = 25°C",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Peak off-state current",
          "symbol": "IDRM",
          "kind": "electrical",
          "unit": "µA",
          "min": null,
          "typ": null,
          "max": 20,
          "conditions": "VD = VDRM / VRRM, TJ = 25°C, 400–1000V",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Peak off-state current",
          "symbol": "IDRM",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": null,
          "max": 5,
          "conditions": "VD = VDRM / VRRM, TJ = 125°C, 400–800V",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "RMS on-state current (full sine wave)",
          "symbol": "IT(RMS)",
          "kind": "absolute_maximum",
          "unit": "A",
          "min": null,
          "typ": null,
          "max": 40,
          "conditions": "TC = 75 °C",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Peak non-repetitive surge on-state current",
          "symbol": "ITSM",
          "kind": "absolute_maximum",
          "unit": "A",
          "min": null,
          "typ": null,
          "max": 335,
          "conditions": "Full cycle, TJ initial = 25°C; f = 50 Hz, t = 20 ms",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Peak non-repetitive surge on-state current",
          "symbol": "ITSM",
          "kind": "absolute_maximum",
          "unit": "A",
          "min": null,
          "typ": null,
          "max": 400,
          "conditions": "Full cycle, TJ initial = 25°C; f = 60 Hz, t = 16.7 ms",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "I2t value for fusing",
          "symbol": "I2t",
          "kind": "absolute_maximum",
          "unit": "A2s",
          "min": null,
          "typ": null,
          "max": 664,
          "conditions": "tp = 8.3 ms",
          "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": 150,
          "conditions": "f = 120 Hz; TJ = 125 °C; IG = 2 x IGT, tr ≤ 100 ns",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Peak gate trigger current",
          "symbol": "IGTM",
          "kind": "absolute_maximum",
          "unit": "A",
          "min": null,
          "typ": null,
          "max": 4,
          "conditions": "tp = 20 µs; TJ = 125 °C",
          "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": "TJ = 125 °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": 125,
          "conditions": "",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Thermal resistance, junction to case (AC)",
          "symbol": "RθJ-C",
          "kind": "thermal",
          "unit": "°C/W",
          "min": null,
          "typ": 0.95,
          "max": null,
          "conditions": "Junction to case (AC), Qxx40J7",
          "source_page": 3,
          "source": "datasheet"
        }
      ]
    }
  },
  "variants": [],
  "sections": [
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    "viewers",
    "readme",
    "breadcrumbs",
    "info"
  ],
  "discovery_triggers": [
    "q4040j7tp"
  ],
  "discovery_pitch": "Q4040J7TP (Littelfuse) component page: datasheet pinout, KiCad symbol, footprint and 3D.",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
  },
  "dependencies": {},
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    "path": "docs/hero.png"
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    "q4040j7tp.step",
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    "viewers/symbol.html",
    "viewers/footprint.html",
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    "q4040j7tp-etched.glb"
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  "visibility": {
    "public": true
  }
}