SMS12CT1G

{
  "slug": "sms12ct1g",
  "version": "0.1.0",
  "type": "component",
  "description": "onsemi ESD Protection Devices, TSOP-6. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "tvs-fuse-board level protection",
    "sms12ct1g",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "sms12ct1g.kicad_sym",
    "sms12ct1g.kicad_mod",
    "sms12ct1g.glb",
    "sms12ct1g.step",
    "sms12ct1g.lbr",
    "docs/hero.png",
    "docs/sms12ct1g-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "sms12ct1g-hero.glb",
    "sms12ct1g-hero.overlay.json"
  ],
  "component": {
    "mpn": "SMS12CT1G",
    "manufacturer": "onsemi",
    "package": "TSOP-6",
    "pin_count": 6,
    "category": "TVS/Fuse/Board Level Protection",
    "subcategory": "ESD Protection Devices",
    "datasheet": "https://www.onsemi.com/pdf/datasheet/sms12ct1-d.pdf",
    "parts": {
      "symbol": "sms12ct1g.kicad_sym",
      "footprint": "sms12ct1g.kicad_mod",
      "model_3d": "sms12ct1g-hero.glb",
      "model_3d_step": "sms12ct1g.step",
      "lbr": "sms12ct1g.lbr",
      "model_3d_plain": "sms12ct1g.glb"
    },
    "distributor_links": {
      "lcsc": "C604711",
      "digikey": "SMS12CT1GOSTR-ND",
      "mouser": "863-SMS12CT1G"
    },
    "distributor_check": {
      "checked_at": "2026-10-28T23:00:49Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "SMS12CT1GOSTR-ND",
        "status": "found",
        "lifecycle": "Obsolete"
      },
      "mouser": {
        "pn": "863-SMS12CT1G",
        "status": "found",
        "lifecycle": "End of Life"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "CATHODE",
        "type": "passive",
        "description": "Cathode of one protected line in the common-anode array; it clamps transients and ESD on that line relative to the common anode."
      },
      {
        "number": "2",
        "name": "ANODE",
        "type": "passive",
        "description": "Common anode shared by all five protection diodes, which is tied to the GND reference in the application circuits."
      },
      {
        "number": "3",
        "name": "CATHODE",
        "type": "passive",
        "description": "Cathode of one protected line in the common-anode array; it clamps transients and ESD on that line relative to the common anode."
      },
      {
        "number": "4",
        "name": "CATHODE",
        "type": "passive",
        "description": "Cathode of one protected line in the common-anode array; it clamps transients and ESD on that line relative to the common anode."
      },
      {
        "number": "5",
        "name": "CATHODE",
        "type": "passive",
        "description": "Cathode of one protected line in the common-anode array; it clamps transients and ESD on that line relative to the common anode."
      },
      {
        "number": "6",
        "name": "CATHODE",
        "type": "passive",
        "description": "Cathode of one protected line in the common-anode array; it clamps transients and ESD on that line relative to the common anode."
      }
    ],
    "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: Pin 2 is labelled ANODE in the datasheet pin assignment and is the only non-cathode pin; the datashe; The pin assignment is printed once for the whole SMS05C/SMS12C/SMS15C/SMS24C family and is not speci; Page 4 says the array 'protects four separate lines' while the features and page 1 say five lines. T"
        ],
        "pages_sent": 6,
        "cost_usd": 0.0413,
        "at": "2026-10-28T23:00:41"
      },
      "datasheet": {
        "url": "https://www.onsemi.com/pdf/datasheet/sms12ct1-d.pdf",
        "pages": 6,
        "sha256": "998696d86ee36dd1",
        "source_tier": "mfr"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 6,
        "described": 6,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
      {
        "file": "sms12ct1g.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          2.8,
          3.05,
          1.1
        ],
        "zmin_mm": -0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "1c9b13e7787bad69d987f81501759be5faaee754f4ad55aa7da0fc2259cdb0ff",
        "checked": "2026-10-28",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ],
    "package_dims": {
      "package_code": "TSOP-6 (CASE 318G-02)",
      "source_page": 5,
      "D": {
        "nom_mm": 3.0,
        "range_mm": [
          2.9,
          3.1
        ]
      },
      "E1": {
        "nom_mm": 1.5,
        "range_mm": [
          1.3,
          1.7
        ]
      },
      "E": {
        "nom_mm": 2.75,
        "range_mm": [
          2.5,
          3.0
        ]
      },
      "e": {
        "nom_mm": 0.95,
        "range_mm": [
          0.85,
          1.05
        ]
      },
      "A": {
        "nom_mm": 1.0,
        "range_mm": [
          0.9,
          1.1
        ]
      },
      "source": "datasheet package drawing, every number found on its page (extract_pins --task dims)",
      "model_check": {
        "file": "sms12ct1g.step",
        "verdict": "PASS",
        "reasons": [
          "height and body within the datasheet's package drawing"
        ],
        "by": "factory/package_fit.py"
      }
    }
  }
}