CT304B-800S

{
  "slug": "ct304b-800s",
  "version": "0.1.1",
  "type": "component",
  "description": "Changjiang Electronics Tech (CJ) TRIACs, TO-220. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "transistors",
    "ct304b-800s",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "ct304b-800s.kicad_sym",
    "ct304b-800s.kicad_mod",
    "ct304b-800s.glb",
    "ct304b-800s.step",
    "ct304b-800s.lbr",
    "docs/hero.png",
    "docs/ct304b-800s-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "ct304b-800s-hero.glb",
    "ct304b-800s-hero.overlay.json",
    "ct304b-800s-etched.glb",
    "ct304b-800s-etched.step"
  ],
  "component": {
    "mpn": "CT304B-800S",
    "manufacturer": "Changjiang Electronics Tech (CJ)",
    "package": "TO-220",
    "pin_count": 3,
    "category": "Transistors",
    "subcategory": "TRIACs",
    "datasheet": "https://datasheet.lcsc.com/datasheet/pdf/3fd2447f325db43abeada0d203cecc6d.pdf",
    "parts": {
      "symbol": "ct304b-800s.kicad_sym",
      "footprint": "ct304b-800s.kicad_mod",
      "model_3d": "ct304b-800s-hero.glb",
      "model_3d_plain": "ct304b-800s-etched.glb",
      "model_3d_step": "ct304b-800s-etched.step",
      "model_3d_step_plain": "ct304b-800s.step",
      "lbr": "ct304b-800s.lbr"
    },
    "distributor_links": {
      "lcsc": "C527759"
    },
    "distributor_check": {
      "checked_at": "2026-10-30T19:53:49Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "no match"
      },
      "mouser": {
        "pn": null,
        "status": "no match"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "MAIN TERMINAL 1 (MT1)",
        "type": "passive",
        "description": "Main terminal 1 of the TRIAC, which carries the main on-state current with an RMS rating of IT(RMS) 4 A and a non-repetitive surge peak of 40 A (Tj(init)=25℃, tp=20ms)."
      },
      {
        "number": "2",
        "name": "MAIN TERMINAL 2 (MT2)",
        "type": "passive",
        "description": "Main terminal 2 of the TRIAC, which is rated for the 800 V repetitive peak off-state voltage (VDRM/VRRM) of the CT304B-800S variant and 4 A RMS on-state current."
      },
      {
        "number": "3",
        "name": "GATE",
        "type": "input",
        "description": "Gate terminal used to trigger the TRIAC, with a peak gate current IGM of 4 A (tp=20µs, Tj=125℃), an average gate power PG(AV) of 1 W, a gate trigger voltage VGT of at most 1.3 V, and a gate trigger current IGT of at most 10 mA for the S suffix."
      }
    ],
    "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 gives the TO-220BK terminal names and numbers (1 MAIN TERMINAL 1, 2 MAIN TERMINAL 2, 3; The datasheet does not state pin electrical types for the main terminals; 'passive' was assigned as ; The gate trigger table in the extracted text is garbled, so the IGT limit of 10 mA is taken from the"
        ],
        "pages_sent": 4,
        "cost_usd": 0.0198,
        "at": "2026-10-30T19:53:42"
      },
      "datasheet": {
        "url": "https://datasheet.lcsc.com/datasheet/pdf/3fd2447f325db43abeada0d203cecc6d.pdf",
        "pages": 4,
        "sha256": "63ac3b7b85f088b4",
        "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": "ct304b-800s.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": "2026-10-30",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "ct304b-800s-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": "fbf554b7187ed2c398d827118a45c61df97cc3d2c366b234d004e1fc9edcde65",
        "checked": "2026-10-30",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}