MST1661TQ

{
  "slug": "mst1661tq",
  "version": "0.1.0",
  "type": "component",
  "description": "MST LED Drivers, TO-252. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "led drivers",
    "mst1661tq",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "mst1661tq.kicad_sym",
    "mst1661tq.kicad_mod",
    "mst1661tq.glb",
    "mst1661tq.step",
    "mst1661tq.lbr",
    "docs/hero.png",
    "docs/mst1661tq-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "mst1661tq-hero.glb",
    "mst1661tq-hero.overlay.json",
    "mst1661tq-etched.glb"
  ],
  "component": {
    "mpn": "MST1661TQ",
    "manufacturer": "MST",
    "package": "TO-252",
    "pin_count": 3,
    "category": "LED Drivers",
    "subcategory": "LED Drivers",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8603360207611850752",
    "parts": {
      "symbol": "mst1661tq.kicad_sym",
      "footprint": "mst1661tq.kicad_mod",
      "model_3d": "mst1661tq-hero.glb",
      "model_3d_plain": "mst1661tq-etched.glb",
      "model_3d_step": "mst1661tq-etched.step",
      "model_3d_step_plain": "mst1661tq.step",
      "lbr": "mst1661tq.lbr"
    },
    "distributor_links": {
      "lcsc": "C22395106"
    },
    "distributor_check": {
      "checked_at": "2026-10-18T03:15:36Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "no match"
      },
      "mouser": {
        "pn": null,
        "status": "no match"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "VIN",
        "type": "power_in",
        "description": "Battery positive terminal that supplies the device, with a DC supply range of 9 V to 24 V and a DC supply voltage absolute maximum of 40 V."
      },
      {
        "number": "2",
        "name": "VOUT",
        "type": "output",
        "description": "Output terminal that switches the bulbs through the internal driver, with on-state resistance RDS(ON) of 60 mΩ typical and 80 mΩ maximum (Vdd=5V, Ic=1.6A), and drain current internally limited."
      },
      {
        "number": "3",
        "name": "CEXT",
        "type": "passive",
        "description": "Capacitor terminal for the external capacitor connected between CEXT and OUT that stores energy to power the device during the ON phase, with a CEXT capacitor voltage absolute maximum of 20 V."
      }
    ],
    "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 pin numbers, symbols and descriptions for the TO252 package, but does not state ; The pin configuration figure in the text extraction shows only the labels VIN, VOUT, CEXT with no ge; The Ordering Information lists the MST1661 in package TO252 only, so the TO-252 pinout applies to th"
        ],
        "pages_sent": 6,
        "cost_usd": 0.0263,
        "at": "2026-10-18T03:13:35"
      },
      "datasheet": {
        "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8603360207611850752",
        "pages": 6,
        "sha256": "a4f89d63ee5a5c12",
        "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": "mst1661tq.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": -0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "3eb4c99603a4fe837c2fe9308bc174769ded87a785a0df48d2dc441432ee8b4c",
        "checked": "2026-10-18",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "mst1661tq-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          9.9,
          6.5,
          2.32
        ],
        "zmin_mm": -0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "1cc951a4b14b3eeb1997150435a89378408ae2d51e5b2fdea74a361e3cb49531",
        "checked": "2026-10-18",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}