main
Ray sit3051esa: component.models_3d pose record per STEP (Z-up, seated z=0, pad-centre origin, identity binding) f1a5a51 1d ago
{
  "schema_version": 1,
  "type": "component",
  "slug": "sit3051esa",
  "title": "SIT3051ESA",
  "brief": "SIT CAN Controllers, SOP-8. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.1.0",
  "license": "CC-BY-SA-4.0",
  "tags": [
    "component",
    "interface",
    "sit3051esa"
  ],
  "component": {
    "mpn": "SIT3051ESA",
    "manufacturer": "SIT",
    "package": "SOP-8",
    "pin_count": 8,
    "category": "Interface",
    "subcategory": "CAN Controllers",
    "datasheet": "https://datasheet.lcsc.com/datasheet/pdf/cedc82548dead3779e85cc7306efc30d.pdf",
    "parts": {
      "symbol": "sit3051esa.kicad_sym",
      "footprint": "sit3051esa.kicad_mod",
      "model_3d": "sit3051esa-etched.glb",
      "model_3d_plain": "sit3051esa.glb",
      "model_3d_step": "sit3051esa-etched.step",
      "model_3d_step_plain": "sit3051esa.step",
      "lbr": "sit3051esa.lbr"
    },
    "distributor_links": {},
    "pins": [
      {
        "number": "1",
        "name": "D",
        "type": "input",
        "description": "CAN transmit data input (TXD / driver input). LOW drives the bus dominant; HIGH leaves the bus recessive. Internally pulled up to VCC."
      },
      {
        "number": "2",
        "name": "GND",
        "type": "power_in",
        "description": "Ground reference for the device. All voltages are referenced to this pin."
      },
      {
        "number": "3",
        "name": "VCC",
        "type": "power_in",
        "description": "Transceiver supply voltage, 3.3V nominal (3.0V to 3.6V range). Absolute max -0.3V to +6V."
      },
      {
        "number": "4",
        "name": "R",
        "type": "output",
        "description": "CAN receive data output (RXD / driver output). LOW for dominant bus state, HIGH for recessive. Output current limits ±11 mA."
      },
      {
        "number": "5",
        "name": "SHDN",
        "type": "input",
        "description": "Shutdown input, CMOS/TTL compatible. Drive HIGH to enter low-current off mode; internal pull-down to GND keeps the device active if left open. VIH ≥ 2V, VIL ≤ 0.8V."
      },
      {
        "number": "6",
        "name": "CANL",
        "type": "bidirectional",
        "description": "Low-level CAN bus line. Differential bus I/O with common-mode range -7V to +12V and >±12kV HBM ESD protection. Absolute max -36V to +36V; transient ±100V."
      },
      {
        "number": "7",
        "name": "CANH",
        "type": "bidirectional",
        "description": "High-level CAN bus line. Differential bus I/O with common-mode range -7V to +12V and >±12kV HBM ESD protection. Absolute max -36V to +36V; transient ±100V."
      },
      {
        "number": "8",
        "name": "RS",
        "type": "input",
        "description": "Mode select pin. Strong pull-down to GND (<0.33 VCC) selects high-speed mode; strong pull-up to VCC (>0.75 VCC) selects low-power/standby mode; a 10 kΩ to 100 kΩ pull-down to GND selects slope-control mode with adjustable driver transition times."
      }
    ],
    "provenance": {
      "extractor": "ds2sf",
      "datasheet": {
        "url": "https://datasheet.lcsc.com/datasheet/pdf/cedc82548dead3779e85cc7306efc30d.pdf",
        "pages": 18,
        "sha256": "6d6af5f032b778e0",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 8,
        "described": 8,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
      {
        "file": "sit3051esa.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          6.0,
          4.9,
          1.75
        ],
        "zmin_mm": -0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "07f46cff378d30e6c27dfd5a03092c795323f86d91c71fc7e743f4f418dc553a",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "sit3051esa-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          6.0,
          4.9,
          1.75
        ],
        "zmin_mm": -0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "2a9f6058905b3716673a32a4d046f2b1baf986e371fdb33481432977d88fdda2",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "SIT",
      "Package": "SOP-8",
      "Category": "Interface",
      "Pins": "8"
    }
  },
  "variants": [
    {
      "mpn": "SIT3051ESA",
      "kind": "packaging"
    },
    {
      "mpn": "SIT3051ESATK",
      "kind": "packaging"
    }
  ],
  "sections": [
    "hero",
    "viewers",
    "readme",
    "breadcrumbs",
    "info"
  ],
  "discovery_triggers": [
    "sit3051esa"
  ],
  "discovery_pitch": "SIT3051ESA (SIT) component page with datasheet-verified CAD.",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
  },
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "sit3051esa.kicad_sym",
    "sit3051esa.kicad_mod",
    "sit3051esa.glb",
    "sit3051esa.step",
    "sit3051esa.lbr",
    "docs/hero.png",
    "docs/sit3051esa-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html"
  ],
  "visibility": {
    "public": true
  },
  "updated_at": "2026-09-25T06:03:05.588Z"
}