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Ray Set visibility: public d674425 1d ago
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  "slug": "lm4051bem3-1-2",
  "title": "LM4051BEM3-1.2",
  "brief": "Texas Instruments Voltage Reference, SOT-23-3. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.1.0",
  "license": "CC-BY-SA-4.0",
  "tags": [
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    "power management (pmic)",
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  "component": {
    "mpn": "LM4051BEM3-1.2",
    "manufacturer": "Texas Instruments",
    "package": "SOT-23-3",
    "pin_count": 3,
    "category": "Power Management (PMIC)",
    "subcategory": "Voltage Reference",
    "datasheet": "https://www.ti.com/cn/lit/gpn/lm4051-n",
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    },
    "distributor_links": {
      "lcsc": "C2157102",
      "digikey": "LM4051BEM3-1.2-ND",
      "mouser": "926-LM4051BEM3-12"
    },
    "distributor_check": {
      "checked_at": "2026-11-05T22:47:53Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "LM4051BEM3-1.2-ND",
        "status": "found"
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      "mouser": {
        "pn": "926-LM4051BEM3-12",
        "status": "found"
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    "pins": [
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        "number": "1",
        "name": "Cathode",
        "type": "bidirectional",
        "description": "Parallel current/voltage input of the shunt reference, with an operating reverse current of 0.06 mA to 12 mA and an absolute maximum reverse current of 20 mA."
      },
      {
        "number": "2",
        "name": "Anode",
        "type": "output",
        "description": "Common pin, normally grounded, which the datasheet lists as type O and which is connected to the internal die on the SOT-23 package."
      },
      {
        "number": "3",
        "name": "NC",
        "type": "unconnected",
        "description": "Not connected on the 1.2V version; it must be left floating or connected to the anode (pin 2), and tying it to the anode is recommended in high-EMI environments."
      }
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        "at": "2026-11-05T22:47:46"
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        "pages": 32,
        "sha256": "ad122b04920e5f31",
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      "Package": "SOT-23-3",
      "Category": "Power Management (PMIC)",
      "Pins": "3"
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          "conditions": "IR = 100μA, TA = TJ = TMIN to TMAX (extended range)",
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          "conditions": "TJ = 25°C",
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          "name": "Reverse breakdown voltage change with operating current",
          "symbol": "ΔVR/ΔIR",
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          "name": "Reverse breakdown voltage change with operating current (extended range)",
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          "name": "Reverse breakdown voltage change with operating current (1mA to 12mA)",
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          "name": "Reverse breakdown voltage change with operating current (1mA to 12mA, extended range)",
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          "conditions": "IR = 100μA, ΔT = −40°C to 125°C, TA = TJ = TMIN to TMAX",
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          "name": "Average reverse breakdown voltage temperature coefficient (25°C)",
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          "unit": "ppm/°C",
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          "conditions": "IR = 100μA, ΔT = −40°C to 125°C, TJ = 25°C",
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          "name": "Average reverse breakdown voltage temperature coefficient (IR = 1mA)",
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          "name": "Average reverse breakdown voltage temperature coefficient (IR = 10mA)",
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          "unit": "ppm/°C",
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          "name": "Recommended reverse current",
          "symbol": "",
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          "min": 0.06,
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          "conditions": "LM4051-1.2",
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          "name": "Reverse current",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "mA",
          "min": null,
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          "conditions": "",
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        {
          "name": "Forward current",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "mA",
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          "max": 10,
          "conditions": "",
          "source_page": 4,
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          "name": "Power dissipation",
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          "kind": "absolute_maximum",
          "unit": "mW",
          "min": null,
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          "conditions": "TA = 25°C, M3 package",
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        {
          "name": "Storage temperature",
          "symbol": "Tstg",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": -65,
          "typ": null,
          "max": 150,
          "conditions": "",
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        {
          "name": "Lead temperature, vapor phase",
          "symbol": "",
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          "unit": "°C",
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          "conditions": "M3 package, vapor phase (60 s)",
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          "name": "Lead temperature, infrared",
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          "conditions": "M3 package, infrared (15 s)",
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          "name": "ESD human body model",
          "symbol": "V(ESD)",
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          "conditions": "HBM, ANSI/ESDA/JEDEC JS-001",
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          "name": "ESD charged device model",
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          "name": "Junction-to-ambient thermal resistance",
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          "conditions": "DBZ 3-pin package",
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          "name": "Typical thermal resistance, board mounted",
          "symbol": "θJA",
          "kind": "thermal",
          "unit": "°C/W",
          "min": null,
          "typ": 280,
          "max": null,
          "conditions": "SOT-23 package, board mounted (absolute maximum note)",
          "source_page": 4,
          "source": "datasheet"
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        {
          "name": "Dynamic impedance",
          "symbol": "ZR",
          "kind": "electrical",
          "unit": "Ω",
          "min": null,
          "typ": 0.5,
          "max": null,
          "conditions": "IR = 1mA, f = 120Hz",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Wideband noise",
          "symbol": "eN",
          "kind": "electrical",
          "unit": "μVrms",
          "min": null,
          "typ": 20,
          "max": null,
          "conditions": "IR = 100μA, 10Hz ≤ f ≤ 10kHz",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Long-term stability of reverse breakdown voltage",
          "symbol": "ΔVR",
          "kind": "electrical",
          "unit": "ppm",
          "min": null,
          "typ": 120,
          "max": null,
          "conditions": "t = 1000 hrs, T = 25°C ± 0.1°C, IR = 100μA",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Thermal hysteresis",
          "symbol": "VHYST",
          "kind": "electrical",
          "unit": "mV/V",
          "min": null,
          "typ": 0.36,
          "max": null,
          "conditions": "ΔT = −40°C to 125°C",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Reverse breakdown voltage",
          "symbol": "VR",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": 1.225,
          "max": null,
          "conditions": "IR = 100μA",
          "source_page": 5,
          "source": "datasheet"
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    "name": "Ray",
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