LM4040DIM3-2.5+T

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  "title": "LM4040DIM3-2.5+T",
  "brief": "Analog Devices Inc Maxim Integrated Voltage Reference, SOT-23. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.",
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    "category": "Power Management (PMIC)",
    "subcategory": "Voltage Reference",
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        "name": "+",
        "type": "passive",
        "description": "Positive (cathode) terminal of the shunt reference. Connect through a source resistor RS to the supply; the device regulates VR = 2.500V across pins 1 (+) and 2 (-). Reverse current must be kept between IRMIN (~65µA typ, 70µA max for D-grade) and 15mA for regulation, and must never exceed 20mA absolute maximum."
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        "description": "Negative (anode) terminal of the shunt reference. Typically tied to circuit ground; forward current from anode to cathode must not exceed 10mA absolute maximum."
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      {
        "number": "3",
        "name": "N.C.",
        "type": "unconnected",
        "description": "No internal connection. Must be left unconnected or tied to pin 2 (negative terminal); do not connect to any other node."
      }
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        "described": 3,
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        "seat": "z = 0",
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          3.0,
          1.2
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        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "dd5d1711204e1d8d26cd11490923bd84340820baa69538c385a4300ec2539bc0",
        "checked": "2026-10-07",
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  "metadata": {
    "specs": {
      "Manufacturer": "Analog Devices Inc Maxim Integrated",
      "Package": "SOT-23",
      "Category": "Power Management (PMIC)",
      "Pins": "3"
    },
    "characteristics": {
      "version": 1,
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        {
          "name": "Reverse Breakdown Voltage (LM4040D, 1.0%, 2.500V)",
          "symbol": "VR",
          "kind": "electrical",
          "unit": "V",
          "min": 2.475,
          "typ": 2.5,
          "max": 2.525,
          "conditions": "IR = 100µA, TA = +25°C",
          "source_page": 4,
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        {
          "name": "Reverse Breakdown Voltage Tolerance (overtemperature, LM4040D)",
          "symbol": "VR",
          "kind": "tolerance",
          "unit": "mV",
          "min": -49,
          "typ": 20,
          "max": 49,
          "conditions": "LM4040D, Note 2",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Minimum Operating Current (LM4040D)",
          "symbol": "IRMIN",
          "kind": "electrical",
          "unit": "µA",
          "min": null,
          "typ": 45,
          "max": 70,
          "conditions": "LM4040D",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Average Reverse Voltage Temperature Coefficient (LM4040D)",
          "symbol": "∆VR/∆T",
          "kind": "temperature_coefficient",
          "unit": "ppm/°C",
          "min": -20,
          "typ": null,
          "max": 20,
          "conditions": "IR = 10mA",
          "source_page": 4,
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        },
        {
          "name": "Average Reverse Voltage Temperature Coefficient (LM4040D)",
          "symbol": "∆VR/∆T",
          "kind": "temperature_coefficient",
          "unit": "ppm/°C",
          "min": -150,
          "typ": 15,
          "max": 150,
          "conditions": "IR = 1mA",
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        },
        {
          "name": "Average Reverse Voltage Temperature Coefficient (LM4040D)",
          "symbol": "∆VR/∆T",
          "kind": "temperature_coefficient",
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          "conditions": "IR = 100µA",
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          "name": "Reverse Breakdown Voltage Change with Operating Current Change (LM4040D)",
          "symbol": "",
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          "unit": "mV",
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          "typ": 0.4,
          "max": 1.2,
          "conditions": "IRMIN ≤ IR ≤ 1mA",
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        {
          "name": "Reverse Breakdown Voltage Change with Operating Current Change (LM4040D)",
          "symbol": "",
          "kind": "electrical",
          "unit": "mV",
          "min": null,
          "typ": 2.5,
          "max": 10,
          "conditions": "1mA ≤ IR ≤ 15mA",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Reverse Dynamic Impedance (LM4040D)",
          "symbol": "ZR",
          "kind": "electrical",
          "unit": "Ω",
          "min": null,
          "typ": 0.3,
          "max": 1.1,
          "conditions": "IR = 1mA, f = 120Hz, IAC = 0.1IR",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Reverse Current (cathode to anode)",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "mA",
          "min": null,
          "typ": null,
          "max": 20,
          "conditions": "",
          "source_page": 2,
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        {
          "name": "Forward Current (anode to cathode)",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "mA",
          "min": null,
          "typ": null,
          "max": 10,
          "conditions": "",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Operating Temperature Range (LM4040_I_ _ _)",
          "symbol": "TA",
          "kind": "recommended_operating",
          "unit": "°C",
          "min": -40,
          "typ": null,
          "max": 85,
          "conditions": "I-grade (LM4040DIM3)",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Storage Temperature Range",
          "symbol": "TSTG",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": -65,
          "typ": null,
          "max": 150,
          "conditions": "",
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        },
        {
          "name": "Junction Temperature",
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          "unit": "°C",
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        {
          "name": "Lead Temperature (soldering)",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "°C",
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          "typ": null,
          "max": 300,
          "conditions": "soldering, 10s",
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        {
          "name": "Soldering Temperature (reflow)",
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          "unit": "°C",
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          "max": 260,
          "conditions": "reflow",
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          "name": "Thermal Resistance Junction to Ambient (SOT23, four-layer board)",
          "symbol": "θJA",
          "kind": "thermal",
          "unit": "°C/W",
          "min": null,
          "typ": 336,
          "max": null,
          "conditions": "Four-layer board, JESD51-7",
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          "name": "Thermal Resistance Junction to Case (SOT23, four-layer board)",
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          "min": null,
          "typ": 110.1,
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