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Ray Set visibility: public bf6886e 14d ago
{
  "schema_version": 1,
  "type": "component",
  "slug": "cbm812tst4",
  "title": "CBM812TST4",
  "brief": "Corebai Microelectronics Supervisor And Reset ICs, SOT-143-4. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.1.0",
  "license": "CC-BY-SA-4.0",
  "tags": [
    "component",
    "power management (pmic)",
    "cbm812tst4",
    "factory-2.0.0",
    "extractor-text"
  ],
  "component": {
    "mpn": "CBM812TST4",
    "manufacturer": "Corebai Microelectronics",
    "package": "SOT-143-4",
    "pin_count": 4,
    "category": "Power Management (PMIC)",
    "subcategory": "Supervisor And Reset ICs",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8590918965785018368",
    "parts": {
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      "footprint": "cbm812tst4.kicad_mod",
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      "model_3d_step": "cbm812tst4-etched.step",
      "model_3d_step_plain": "cbm812tst4.step",
      "lbr": "cbm812tst4.lbr"
    },
    "distributor_links": {
      "lcsc": "C22374151"
    },
    "distributor_check": {
      "checked_at": "2026-10-20T09:26:01Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "no match"
      },
      "mouser": {
        "pn": null,
        "status": "no match"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "GND",
        "type": "power_in",
        "description": "Power supply ground, 0 V reference for the device."
      },
      {
        "number": "2",
        "name": "RESET",
        "type": "output",
        "description": "For the CBM812 this is the active-high reset output: it is asserted when VCC is below the reset threshold and stays active for 240 ms (typical) after VCC rises above the threshold."
      },
      {
        "number": "3",
        "name": "MR",
        "type": "input",
        "description": "Manual reset input with debounce; input pulses shorter than 100 ns are ignored, and inputs longer than 10 µs reliably trigger reset, with an internal pull-up of 10 kΩ to 30 kΩ (20 kΩ typical)."
      },
      {
        "number": "4",
        "name": "VCC",
        "type": "power_in",
        "description": "Supply voltage monitored by the device; operating supply range is 1.0 V to 5.5 V, and the absolute maximum is -0.3 V to +6 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 pin table lists two functions for pin 2: a low-level RESET output (CBM811) and a high-level RESE; The pin table gives the monitored voltage as 2.5 V, 3 V, 3.3 V or 5 V, which depends on the suffix. ; The pull-up resistor value (10/20/30 kΩ) comes from the electrical characteristics table, not the pi"
        ],
        "pages_sent": 10,
        "cost_usd": 0.0309,
        "at": "2026-10-20T09:25:46"
      },
      "datasheet": {
        "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8590918965785018368",
        "pages": 10,
        "sha256": "ffb063a0b60fd624",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 4,
        "described": 4,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
      {
        "file": "cbm812tst4.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          2.3,
          2.9,
          1.1
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "b35b433c0dc71ac416a9c731e744d2e0610f82ebe97275830f0e17cdcbe44512",
        "checked": "2026-10-20",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "cbm812tst4-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
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        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "a8536a0c9e27aabd8888de327d48fb476ab9c42632b5584b9f4e3f4cb3dc256a",
        "checked": "2026-10-20",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "Corebai Microelectronics",
      "Package": "SOT-143-4",
      "Category": "Power Management (PMIC)",
      "Pins": "4"
    },
    "characteristics": {
      "version": 1,
      "source": "datasheet",
      "datasheet_sha256": "ffb063a0b60fd6245dddf9acd8ec62827e175409cb74107dcaed7a5402c62fe5",
      "rows": [
        {
          "name": "Supply voltage (VCC)",
          "symbol": "VCC",
          "kind": "electrical",
          "unit": "V",
          "min": 1,
          "typ": null,
          "max": 5.5,
          "conditions": "",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Supply current",
          "symbol": "",
          "kind": "electrical",
          "unit": "μA",
          "min": null,
          "typ": 8,
          "max": 15,
          "conditions": "",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Reset threshold voltage, CBM812T (first row)",
          "symbol": "",
          "kind": "electrical",
          "unit": "V",
          "min": 3.03,
          "typ": 3.08,
          "max": 3.14,
          "conditions": "TA = −40°C to +85°C",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Reset threshold voltage, CBM812T (second row)",
          "symbol": "",
          "kind": "electrical",
          "unit": "V",
          "min": 3,
          "typ": null,
          "max": 3.15,
          "conditions": "TA = −40°C to +85°C",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Manual reset minimum pulse width",
          "symbol": "",
          "kind": "electrical",
          "unit": "μs",
          "min": 10,
          "typ": null,
          "max": null,
          "conditions": "",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Manual reset pull-up resistor",
          "symbol": "",
          "kind": "electrical",
          "unit": "kΩ",
          "min": 10,
          "typ": 20,
          "max": 30,
          "conditions": "",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Power-on reset timeout (minimum)",
          "symbol": "",
          "kind": "timing",
          "unit": "ms",
          "min": 140,
          "typ": null,
          "max": null,
          "conditions": "",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Power-on reset timeout (typical)",
          "symbol": "",
          "kind": "timing",
          "unit": "ms",
          "min": null,
          "typ": 240,
          "max": null,
          "conditions": "",
          "source_page": 8,
          "source": "datasheet"
        },
        {
          "name": "Manual reset input high threshold",
          "symbol": "",
          "kind": "electrical",
          "unit": "V",
          "min": 2.3,
          "typ": null,
          "max": null,
          "conditions": "",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Manual reset input low threshold",
          "symbol": "",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 0.8,
          "conditions": "",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Operating temperature range",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": -40,
          "typ": null,
          "max": 85,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Storage temperature range",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": -65,
          "typ": null,
          "max": 160,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "VCC terminal voltage (relative to GND)",
          "symbol": "VCC",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": 6,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "VCC input current",
          "symbol": "VCC",
          "kind": "absolute_maximum",
          "unit": "mA",
          "min": null,
          "typ": null,
          "max": 20,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "MR input current",
          "symbol": "MR",
          "kind": "absolute_maximum",
          "unit": "mA",
          "min": null,
          "typ": null,
          "max": 20,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "RESET output current",
          "symbol": "RESET",
          "kind": "absolute_maximum",
          "unit": "mA",
          "min": null,
          "typ": null,
          "max": 20,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Power dissipation (SOT-143)",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "mW",
          "min": null,
          "typ": null,
          "max": 200,
          "conditions": "TA = 70°C",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Thermal resistance junction-to-ambient",
          "symbol": "θJA",
          "kind": "thermal",
          "unit": "°C/W",
          "min": null,
          "typ": 330,
          "max": null,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Power derating above 70°C",
          "symbol": "",
          "kind": "thermal",
          "unit": "mW/°C",
          "min": null,
          "typ": 4,
          "max": null,
          "conditions": "above 70°C",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "ESD rating",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "kV",
          "min": null,
          "typ": null,
          "max": 3,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Pin temperature, soldering (10 s)",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": null,
          "typ": null,
          "max": 300,
          "conditions": "10 s",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Pin temperature, vapor phase (60 s)",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": null,
          "typ": null,
          "max": 215,
          "conditions": "60 s",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Pin temperature, infrared (15 s)",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": null,
          "typ": null,
          "max": 220,
          "conditions": "15 s",
          "source_page": 4,
          "source": "datasheet"
        }
      ]
    }
  },
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    "breadcrumbs",
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  "discovery_triggers": [
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  ],
  "discovery_pitch": "CBM812TST4 (Corebai Microelectronics) component page: datasheet pinout, KiCad symbol, footprint and 3D.",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
  },
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  "visibility": {
    "public": true
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}