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Ray Set visibility: public 93b667b 14d ago
{
  "schema_version": 1,
  "type": "component",
  "slug": "cbm811tst4",
  "title": "CBM811TST4",
  "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)",
    "cbm811tst4",
    "factory-2.0.0",
    "extractor-text"
  ],
  "component": {
    "mpn": "CBM811TST4",
    "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/8590918964518744064",
    "parts": {
      "symbol": "cbm811tst4.kicad_sym",
      "footprint": "cbm811tst4.kicad_mod",
      "model_3d": "cbm811tst4-hero.glb",
      "model_3d_plain": "cbm811tst4-etched.glb",
      "model_3d_step": "cbm811tst4-etched.step",
      "model_3d_step_plain": "cbm811tst4.step",
      "lbr": "cbm811tst4.lbr"
    },
    "distributor_links": {
      "lcsc": "C22374144"
    },
    "distributor_check": {
      "checked_at": "2026-10-20T17:21:44Z",
      "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": "Active-low reset output for the CBM811 (the CBM812 uses an active-high RESET on this pin); it stays asserted while VCC is below the reset threshold and for 240 ms typical after VCC rises above it, and remains valid down to VCC = 1 V."
      },
      {
        "number": "3",
        "name": "MR",
        "type": "input",
        "description": "Manual reset input with debounce: inputs shorter than 100 ns are ignored, inputs longer than 10 µs trigger reset, and the input has an internal pull-up of 10 to 30 kΩ (20 kΩ typical)."
      },
      {
        "number": "4",
        "name": "VCC",
        "type": "power_in",
        "description": "Monitored supply voltage input (2.5 V, 3 V, 3.3 V or 5 V as printed on the pin table); the absolute maximum rating is −0.3 V to +6 V."
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        "consensus": "agreed",
        "guards": "pin_guards 0.1: passed",
        "guard_notes": [
          "extractor flagged: The pin table lists both 'RESET 低电平逻辑输出' (active-low, CBM811) and 'RESET 高电平逻辑输出' (active-high, CBM8; Pin assignments are for the SOT143-4 package, which the ordering table lists for CBM811TST4 (marking"
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        "cost_usd": 0.031,
        "at": "2026-10-20T17:19:51"
      },
      "datasheet": {
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        "pages": 10,
        "sha256": "4552d360b50c8779",
        "source_tier": "lcsc"
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      "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"
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        "file": "cbm811tst4.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
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          2.9,
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        "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": "cbm811tst4-etched.step",
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        "sha256": "63e9c675931b614ab31cb3bd17cc116a74f7153c6d2a18bbb6347e7acc2e9655",
        "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": "4552d360b50c87792f9af18b340d768b3476189ee04c7319fe4660d301e28bf4",
      "rows": [
        {
          "name": "Reset voltage threshold (CBM811T/812T, 3.08 V variant)",
          "symbol": "",
          "kind": "tolerance",
          "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 voltage threshold (CBM811T/812T, 3.08 V variant, wide-limit row)",
          "symbol": "",
          "kind": "tolerance",
          "unit": "V",
          "min": 3,
          "typ": null,
          "max": 3.15,
          "conditions": "TA = −40°C to +85°C",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Supply voltage",
          "symbol": "",
          "kind": "recommended_operating",
          "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": "Manual reset minimum pulse width",
          "symbol": "",
          "kind": "timing",
          "unit": "μs",
          "min": 10,
          "typ": null,
          "max": null,
          "conditions": "",
          "source_page": 5,
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        },
        {
          "name": "Manual reset glitch immunity (signals below this are ignored)",
          "symbol": "",
          "kind": "timing",
          "unit": "ns",
          "min": null,
          "typ": null,
          "max": 100,
          "conditions": "",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Manual reset transmission delay to reset",
          "symbol": "",
          "kind": "timing",
          "unit": "μs",
          "min": null,
          "typ": 0.5,
          "max": null,
          "conditions": "",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Manual reset internal pull-up resistor",
          "symbol": "",
          "kind": "electrical",
          "unit": "kΩ",
          "min": 10,
          "typ": 20,
          "max": 30,
          "conditions": "",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Manual reset input high voltage (fixed)",
          "symbol": "",
          "kind": "electrical",
          "unit": "V",
          "min": 2.3,
          "typ": null,
          "max": null,
          "conditions": "",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Manual reset input low voltage (fixed)",
          "symbol": "",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 0.8,
          "conditions": "",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Manual reset input high threshold (VCC-relative)",
          "symbol": "",
          "kind": "electrical",
          "unit": "*VCC",
          "min": 0.7,
          "typ": null,
          "max": null,
          "conditions": "",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Manual reset input low threshold (VCC-relative)",
          "symbol": "",
          "kind": "electrical",
          "unit": "*VCC",
          "min": null,
          "typ": null,
          "max": 0.25,
          "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": "Reset timeout after VCC rises above threshold",
          "symbol": "",
          "kind": "timing",
          "unit": "ms",
          "min": null,
          "typ": 240,
          "max": null,
          "conditions": "VCC above reset threshold",
          "source_page": 8,
          "source": "datasheet"
        },
        {
          "name": "VCC supply voltage (absolute maximum)",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": 6,
          "conditions": "relative to GND",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Input voltage range (MR)",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": null,
          "conditions": "maximum is VCC + 0.3 V",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "VCC input current",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "mA",
          "min": null,
          "typ": null,
          "max": 20,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "MR input current",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "mA",
          "min": null,
          "typ": null,
          "max": 20,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "RESET output current",
          "symbol": "",
          "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": "Operating temperature range",
          "symbol": "",
          "kind": "recommended_operating",
          "unit": "°C",
          "min": -40,
          "typ": null,
          "max": 85,
          "conditions": "",
          "source_page": 10,
          "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": "Lead 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": "Vapor phase reflow temperature",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": null,
          "typ": null,
          "max": 215,
          "conditions": "60 s",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Infrared reflow temperature",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": null,
          "typ": null,
          "max": 220,
          "conditions": "15 s",
          "source_page": 4,
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        },
        {
          "name": "ESD rating",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "kV",
          "min": null,
          "typ": 3,
          "max": null,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Thermal resistance junction-to-ambient (θJA)",
          "symbol": "θJA",
          "kind": "thermal",
          "unit": "°C/W",
          "min": null,
          "typ": 330,
          "max": null,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        }
      ]
    }
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  "discovery_pitch": "CBM811TST4 (Corebai Microelectronics) component page: datasheet pinout, KiCad symbol, footprint and 3D.",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
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