S4025LTP

{
  "slug": "s4025ltp",
  "version": "0.1.0",
  "type": "component",
  "description": "Littelfuse Thyristors (SCR)/Modules, TO-220AB. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "transistors-thyristors",
    "s4025ltp",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "s4025ltp.kicad_sym",
    "s4025ltp.kicad_mod",
    "s4025ltp.glb",
    "s4025ltp.step",
    "s4025ltp.lbr",
    "docs/hero.png",
    "docs/s4025ltp-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "s4025ltp-hero.glb",
    "s4025ltp-hero.overlay.json",
    "s4025ltp-etched.glb"
  ],
  "component": {
    "mpn": "S4025LTP",
    "manufacturer": "Littelfuse",
    "package": "TO-220AB",
    "pin_count": 3,
    "category": "Transistors/Thyristors",
    "subcategory": "Thyristors (SCR)/Modules",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8590904990020157440",
    "parts": {
      "symbol": "s4025ltp.kicad_sym",
      "footprint": "s4025ltp.kicad_mod",
      "model_3d": "s4025ltp-hero.glb",
      "model_3d_plain": "s4025ltp-etched.glb",
      "model_3d_step": "s4025ltp-etched.step",
      "model_3d_step_plain": "s4025ltp.step",
      "lbr": "s4025ltp.lbr"
    },
    "distributor_links": {
      "lcsc": "C5440406",
      "digikey": "F7301-ND",
      "mouser": "576-S4025LTP"
    },
    "distributor_check": {
      "checked_at": "2026-10-15T22:43:18Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "F7301-ND",
        "status": "found",
        "lifecycle": "Active"
      },
      "mouser": {
        "pn": "576-S4025LTP",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "CATHODE",
        "type": "passive",
        "description": "SCR cathode main terminal, labeled CATHODE on the TO-220AB L-Package drawing (the device is rated for IT(RMS) 20 A or 25 A depending on the part)."
      },
      {
        "number": "2",
        "name": "ANODE",
        "type": "passive",
        "description": "SCR anode main terminal, labeled ANODE on the TO-220AB L-Package drawing; the isolated mounting tab is limited to a maximum torque of 8 in-lbs (0.904 Nm)."
      },
      {
        "number": "3",
        "name": "GATE",
        "type": "input",
        "description": "Gate trigger terminal, labeled GATE on the drawing; the 25 A device specifies IGT 35 mA max, VGT 1.5 V max at VD = 12 V, and peak gate current IGM 3.5 A at TJ = 125°C."
      }
    ],
    "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-220AB L-Package drawing labels the leads CATHODE, ANODE, GATE but does not print ; The isolated mounting tab is not listed as a numbered pin in the datasheet. It was not added as a pi; MPN S4025LTP decodes as S (SCR), 40 (400 V), 25 (25 A), L (TO-220 isolated), TP (tube packing), whic"
        ],
        "pages_sent": 9,
        "cost_usd": 0.0469,
        "at": "2026-10-15T22:43:03"
      },
      "datasheet": {
        "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8590904990020157440",
        "pages": 9,
        "sha256": "97a418a8c58d2bc0",
        "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": "s4025ltp.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": "2026-10-15",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "s4025ltp-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": "cd3d5efdfe5b1ff8ca72dcdc8a691cb71347be7664300eaba850309ac4160d1e",
        "checked": "2026-10-15",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}