MCP4631T-103E

{
  "slug": "mcp4631t-103e",
  "version": "0.1.0",
  "type": "component",
  "description": "Microchip Tech Digital Potentiometers, TSSOP-14. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "adc-dac-data conversion",
    "mcp4631t-103e",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "mcp4631t-103e.kicad_sym",
    "mcp4631t-103e.kicad_mod",
    "mcp4631t-103e.glb",
    "mcp4631t-103e.step",
    "mcp4631t-103e.lbr",
    "docs/hero.png",
    "docs/mcp4631t-103e-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "mcp4631t-103e-hero.glb",
    "mcp4631t-103e-hero.overlay.json",
    "mcp4631t-103e-etched.glb"
  ],
  "component": {
    "mpn": "MCP4631T-103E",
    "manufacturer": "Microchip Tech",
    "package": "TSSOP-14",
    "pin_count": 14,
    "category": "ADC/DAC/Data Conversion",
    "subcategory": "Digital Potentiometers",
    "datasheet": "https://datasheet.lcsc.com/datasheet/pdf/119d1f868bb0428d90f58d0a45154443.pdf",
    "parts": {
      "symbol": "mcp4631t-103e.kicad_sym",
      "footprint": "mcp4631t-103e.kicad_mod",
      "model_3d": "mcp4631t-103e-hero.glb",
      "model_3d_plain": "mcp4631t-103e-etched.glb",
      "model_3d_step": "mcp4631t-103e-etched.step",
      "model_3d_step_plain": "mcp4631t-103e.step",
      "lbr": "mcp4631t-103e.lbr"
    },
    "distributor_links": {
      "lcsc": "C627309"
    },
    "distributor_check": {
      "checked_at": "2026-10-28T20:11:36Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "no match"
      },
      "mouser": {
        "pn": null,
        "status": "no match"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "HVC/A0",
        "type": "input",
        "description": "Address 0 input for the I2C interface, latched at POR/BOR, that also serves as the High Voltage command pin (HVC/A0 = VIHH selects a High Voltage command instead of a normal command)."
      },
      {
        "number": "2",
        "name": "SCL",
        "type": "input",
        "description": "I2C serial clock input; the device is a slave and its SCL pin accepts only external clock signals from the host controller."
      },
      {
        "number": "3",
        "name": "SDA",
        "type": "bidirectional",
        "description": "I2C serial data pin, an open-drain N-channel driver connected to the host controller SDA line."
      },
      {
        "number": "4",
        "name": "VSS",
        "type": "power_in",
        "description": "Device ground reference; the input supply is referenced to this pin."
      },
      {
        "number": "5",
        "name": "P1B",
        "type": "passive",
        "description": "Potentiometer 1 terminal B, the fixed connection to the zero-scale wiper value (0x00); the voltage on this terminal must be between VSS and VDD and it can carry positive or negative current."
      },
      {
        "number": "6",
        "name": "P1W",
        "type": "passive",
        "description": "Potentiometer 1 wiper terminal, the adjustable terminal of the digital potentiometer; the voltage must be between VSS and VDD and it can carry positive or negative current."
      },
      {
        "number": "7",
        "name": "P1A",
        "type": "passive",
        "description": "Potentiometer 1 terminal A, the fixed connection to the full-scale wiper value (0x80 for 7-bit devices); the voltage on this terminal must be between VSS and VDD."
      },
      {
        "number": "8",
        "name": "P0A",
        "type": "passive",
        "description": "Potentiometer 0 terminal A, the fixed connection to the full-scale wiper value (0x80 for 7-bit devices); the voltage on this terminal must be between VSS and VDD."
      },
      {
        "number": "9",
        "name": "P0W",
        "type": "passive",
        "description": "Potentiometer 0 wiper terminal, the adjustable terminal of the digital potentiometer; the voltage must be between VSS and VDD and it can carry positive or negative current."
      },
      {
        "number": "10",
        "name": "P0B",
        "type": "passive",
        "description": "Potentiometer 0 terminal B, the fixed connection to the zero-scale wiper value (0x00); the voltage on this terminal must be between VSS and VDD and it can carry positive or negative current."
      },
      {
        "number": "11",
        "name": "NC",
        "type": "unconnected",
        "description": "No connection; the datasheet states this pin should be connected to either VDD or VSS."
      },
      {
        "number": "12",
        "name": "A2",
        "type": "input",
        "description": "I2C interface Address 2 pin; together with A1 and A0 it allows up to eight devices on a single I2C bus."
      },
      {
        "number": "13",
        "name": "A1",
        "type": "input",
        "description": "I2C interface Address 1 pin; together with A2 and A0 it allows up to eight devices on a single I2C bus."
      },
      {
        "number": "14",
        "name": "VDD",
        "type": "power_in",
        "description": "Positive power supply input referenced to VSS; the electrical performance may not meet the data sheet specifications while VDD is below Vmin (2.7V)."
      }
    ],
    "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 numbers were taken from the 14L column of Table 3-1 (page 33), which covers the dual potentiomet; Section 3.9 (page 34) describes the A1 pin with text that reads 'The A2 pin is the I2C interface's A; Table 3-1 lists these as high-voltage tolerant inputs with Schmitt trigger, and the features list gi"
        ],
        "pages_sent": 18,
        "cost_usd": 0.0656,
        "at": "2026-10-28T20:11:22"
      },
      "datasheet": {
        "url": "https://datasheet.lcsc.com/datasheet/pdf/119d1f868bb0428d90f58d0a45154443.pdf",
        "pages": 102,
        "sha256": "ee77464c39584a73",
        "source_tier": "mfr"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 14,
        "described": 14,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
      {
        "file": "mcp4631t-103e.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          6.4,
          5.0,
          1.0
        ],
        "zmin_mm": -0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "3ee5786aae56190997aa793ba3cfc003fd616782770e29719b4562f012982245",
        "checked": "2026-10-28",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "mcp4631t-103e-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          6.4,
          5.0,
          1.0
        ],
        "zmin_mm": -0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "2da37b8e58412c5963e8250519c9760c1638375e485e71139f71adc5b53d4481",
        "checked": "2026-10-28",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}