TL431BIDR2G

{
  "schema_version": 1,
  "type": "component",
  "slug": "tl431bidr2g",
  "title": "TL431BIDR2G",
  "brief": "onsemi Voltage Reference, SOIC-8. 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)",
    "tl431bidr2g",
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    "extractor-text"
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  "component": {
    "mpn": "TL431BIDR2G",
    "manufacturer": "onsemi",
    "package": "SOIC-8",
    "pin_count": 8,
    "category": "Power Management (PMIC)",
    "subcategory": "Voltage Reference",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588879906592215040",
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      "lbr": "tl431bidr2g.lbr"
    },
    "distributor_links": {
      "lcsc": "C127876",
      "digikey": "TL431BIDR2GOSTR-ND",
      "mouser": "863-TL431BIDR2G"
    },
    "distributor_check": {
      "checked_at": "2026-10-18T01:55:05Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "TL431BIDR2GOSTR-ND",
        "status": "found",
        "lifecycle": "Active"
      },
      "mouser": {
        "pn": "863-TL431BIDR2G",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "Cathode",
        "type": "passive",
        "description": "Cathode (K) of the shunt regulator; sinks 1.0 mA to 100 mA and is programmable from Vref to 36 V (VKA absolute max 37 V)."
      },
      {
        "number": "2",
        "name": "Anode",
        "type": "passive",
        "description": "Anode (A), the ground-side return of the shunt regulator; pins 2, 3, 6 and 7 are electrically common to the die attach flag."
      },
      {
        "number": "3",
        "name": "Anode",
        "type": "passive",
        "description": "Anode (A), the ground-side return of the shunt regulator; pins 2, 3, 6 and 7 are electrically common to the die attach flag."
      },
      {
        "number": "4",
        "name": "N/C",
        "type": "unconnected",
        "description": "No connection."
      },
      {
        "number": "5",
        "name": "N/C",
        "type": "unconnected",
        "description": "No connection."
      },
      {
        "number": "6",
        "name": "Anode",
        "type": "passive",
        "description": "Anode (A), the ground-side return of the shunt regulator; pins 2, 3, 6 and 7 are electrically common to the die attach flag."
      },
      {
        "number": "7",
        "name": "Anode",
        "type": "passive",
        "description": "Anode (A), the ground-side return of the shunt regulator; pins 2, 3, 6 and 7 are electrically common to the die attach flag."
      },
      {
        "number": "8",
        "name": "Reference",
        "type": "input",
        "description": "Reference (R) input that sets the cathode voltage via an external divider; Iref is typically 1.1 µA and the reference voltage is about 2.495 V."
      }
    ],
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        "at": "2026-10-18T01:53:07"
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        "total": 8,
        "described": 8,
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  "metadata": {
    "specs": {
      "Manufacturer": "onsemi",
      "Package": "SOIC-8",
      "Category": "Power Management (PMIC)",
      "Pins": "8"
    },
    "characteristics": {
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          "symbol": "",
          "kind": "tolerance",
          "unit": "%",
          "min": -0.4,
          "typ": null,
          "max": 0.4,
          "conditions": "TL431B; typ @ 25 °C (feature list; ordering tolerance 0.4%)",
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          "name": "Ratio of change in Reference Input Voltage to change in Cathode to Anode Voltage",
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          "kind": "voltage_coefficient",
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          "name": "Ratio of change in Reference Input Voltage to change in Cathode to Anode Voltage",
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          "name": "Reference Input Current",
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          "name": "Reference Input Current over temperature range",
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          "kind": "electrical",
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        {
          "name": "Minimum Cathode Current For Regulation",
          "symbol": "Imin",
          "kind": "electrical",
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          "max": 1,
          "conditions": "VKA = Vref",
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        {
          "name": "Off-State Cathode Current",
          "symbol": "Ioff",
          "kind": "electrical",
          "unit": "nA",
          "min": null,
          "typ": 0.23,
          "max": 500,
          "conditions": "VKA = 36 V, Vref = 0 V",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Dynamic Impedance",
          "symbol": "|ZKA|",
          "kind": "electrical",
          "unit": "Ω",
          "min": null,
          "typ": 0.14,
          "max": 0.3,
          "conditions": "VKA = Vref, IK = 1.0 mA to 100 mA, f ≤ 1.0 kHz",
          "source_page": 4,
          "source": "datasheet"
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          "name": "Cathode to Anode Voltage (recommended)",
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          "conditions": "TL431BI (industrial)",
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          "name": "Storage Temperature Range",
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          "conditions": "",
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          "name": "ESD Human Body Model",
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          "name": "ESD Machine Model",
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          "source_page": 2,
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          "name": "ESD Charged Device Model",
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          "unit": "V",
          "min": 500,
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          "conditions": "JESD22-C101E; printed as >500",
          "source_page": 2,
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        {
          "name": "Thermal Resistance, Junction-to-Ambient",
          "symbol": "RJA",
          "kind": "thermal",
          "unit": "°C/W",
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          "name": "Thermal Resistance, Junction-to-Case",
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          "kind": "thermal",
          "unit": "°C/W",
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  "author": {
    "name": "Ray",
    "email": "[email protected]"
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