SIT82C251T

{
  "slug": "sit82c251t",
  "version": "0.1.0",
  "type": "component",
  "description": "SIT CAN Transceivers, SOP-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "interface",
    "sit82c251t",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "sit82c251t.kicad_sym",
    "sit82c251t.kicad_mod",
    "sit82c251t.glb",
    "sit82c251t.step",
    "sit82c251t.lbr",
    "docs/hero.png",
    "docs/sit82c251t-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "sit82c251t-hero.glb",
    "sit82c251t-hero.overlay.json",
    "sit82c251t-etched.glb"
  ],
  "component": {
    "mpn": "SIT82C251T",
    "manufacturer": "SIT",
    "package": "SOP-8",
    "pin_count": 8,
    "category": "Interface",
    "subcategory": "CAN Transceivers",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588881761815814144",
    "parts": {
      "symbol": "sit82c251t.kicad_sym",
      "footprint": "sit82c251t.kicad_mod",
      "model_3d": "sit82c251t-hero.glb",
      "model_3d_plain": "sit82c251t-etched.glb",
      "model_3d_step": "sit82c251t-etched.step",
      "model_3d_step_plain": "sit82c251t.step",
      "lbr": "sit82c251t.lbr"
    },
    "distributor_links": {
      "lcsc": "C313020"
    },
    "distributor_check": {
      "checked_at": "2026-10-17T17:12:10Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "quota"
      },
      "mouser": {
        "pn": null,
        "status": "quota"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "TXD",
        "type": "input",
        "description": "Transmit data input from the CAN protocol controller; logic-high input must be between 2 V and VCC+0.3 V and logic-low between -0.3 V and 0.8 V."
      },
      {
        "number": "2",
        "name": "GND",
        "type": "power_in",
        "description": "Ground supply and voltage reference point for all device voltages."
      },
      {
        "number": "3",
        "name": "VCC",
        "type": "power_in",
        "description": "Supply voltage of 4.5 V to 5.5 V for normal operation (absolute maximum -0.3 V to +7 V)."
      },
      {
        "number": "4",
        "name": "RXD",
        "type": "output",
        "description": "Receive data output that reads out the bus state, going low for dominant and high for recessive bus states."
      },
      {
        "number": "5",
        "name": "VREF",
        "type": "power_out",
        "description": "Common-mode stabilization (reference) voltage output, specified at 0.3VCC to 0.7VCC for load currents between -500 µA and 500 µA."
      },
      {
        "number": "6",
        "name": "CANL",
        "type": "bidirectional",
        "description": "LOW-level CAN bus line, rated for bus terminal voltages from -40 V to +40 V."
      },
      {
        "number": "7",
        "name": "CANH",
        "type": "bidirectional",
        "description": "HIGH-level CAN bus line, rated for bus terminal voltages from -40 V to +40 V."
      },
      {
        "number": "8",
        "name": "Rs",
        "type": "input",
        "description": "Standby mode control input: grounding Rs selects high-speed mode, while high or open selects low-power standby mode; the MCU-side port limit is -0.3 V to VCC+0.3 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 lists one pin table (page 2) that applies to both the SOP8 and DIP8 packages; the SIT8; The datasheet does not state a KiCad ERC type for VREF, RXD or the bus pins; the types assigned here"
        ],
        "pages_sent": 16,
        "cost_usd": 0.0571,
        "at": "2026-10-17T17:10:00"
      },
      "datasheet": {
        "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588881761815814144",
        "pages": 16,
        "sha256": "e2c6771ee683400b",
        "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": "sit82c251t.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": "2026-10-17",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "sit82c251t-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
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          1.75
        ],
        "zmin_mm": -0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "3d2da8bc7db5e822729f55c3b462dca8ef786c3299fe794289e45a3b7d6c9416",
        "checked": "2026-10-17",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}