MCP120T-450I

{
  "slug": "mcp120t-450i",
  "version": "0.1.0",
  "type": "component",
  "description": "Microchip Tech Monitors & Reset Circuits, SOT-23. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "power management ics",
    "mcp120t-450i",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "mcp120t-450i.kicad_sym",
    "mcp120t-450i.kicad_mod",
    "mcp120t-450i.glb",
    "mcp120t-450i.step",
    "mcp120t-450i.lbr",
    "docs/hero.png",
    "docs/mcp120t-450i-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "mcp120t-450i-hero.glb",
    "mcp120t-450i-hero.overlay.json",
    "mcp120t-450i-etched.glb"
  ],
  "component": {
    "mpn": "MCP120T-450I",
    "manufacturer": "Microchip Tech",
    "package": "SOT-23",
    "pin_count": 3,
    "category": "Power Management ICs",
    "subcategory": "Monitors & Reset Circuits",
    "datasheet": "https://ww1.microchip.com/downloads/en/DeviceDoc/11184d.pdf",
    "parts": {
      "symbol": "mcp120t-450i.kicad_sym",
      "footprint": "mcp120t-450i.kicad_mod",
      "model_3d": "mcp120t-450i-hero.glb",
      "model_3d_plain": "mcp120t-450i-etched.glb",
      "model_3d_step": "mcp120t-450i-etched.step",
      "model_3d_step_plain": "mcp120t-450i.step",
      "lbr": "mcp120t-450i.lbr"
    },
    "distributor_links": {
      "lcsc": "C219574"
    },
    "distributor_check": {
      "checked_at": "2026-10-27T07:54:00Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "quota"
      },
      "mouser": {
        "pn": null,
        "status": "quota"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "RST",
        "type": "output",
        "description": "Active-low open-drain RESET output that asserts whenever VDD is below the trip point and is held for 350 ms (typ) after VDD rises above it; the MCP130 adds an internal 5 kΩ pull-up, while the MCP120 needs an external pull-up."
      },
      {
        "number": "2",
        "name": "VDD",
        "type": "power_in",
        "description": "Supply voltage and monitored input, operating range 1.0 V to 5.5V (absolute maximum 7.0 V), with RESET asserted whenever VDD is below the trip-point voltage."
      },
      {
        "number": "3",
        "name": "VSS",
        "type": "power_in",
        "description": "Ground reference for the device; inputs and outputs are rated -0.6 V to VDD + 1.0 V with respect to VSS."
      }
    ],
    "provenance": {
      "extractor": "extract_pins 0.3",
      "factory_chain": {
        "factory": "2.0.0",
        "extractor": "extract_pins 0.3",
        "primary_model": "claude-sonnet-5-5",
        "primary_mode": "text+vision",
        "consensus_model": "claude-opus-5-5",
        "consensus": "agreed",
        "guards": "pin_guards 0.1: passed",
        "guard_notes": [
          "extractor flagged: Pin numbers are not printed on the SOT-23-3 pinout on page 1, which shows only the pin names. The nu",
          "vision extraction: provenance cannot be text-verified; needs consensus"
        ],
        "pages_sent": 16,
        "cost_usd": 0.1074,
        "at": "2026-10-27T07:53:51"
      },
      "datasheet": {
        "url": "https://ww1.microchip.com/downloads/en/DeviceDoc/11184d.pdf",
        "pages": 16,
        "sha256": "4a71b5087051894f",
        "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": [
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        "file": "mcp120t-450i.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          2.5,
          3.0,
          1.2
        ],
        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "dd5d1711204e1d8d26cd11490923bd84340820baa69538c385a4300ec2539bc0",
        "checked": "2026-10-27",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "mcp120t-450i-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
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          1.2
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        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
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        "sha256": "357c06c94408edfb2c1885f459d70586f9686c1e4666e59e3bd4a2c325202a5a",
        "checked": "2026-10-27",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}