LM431SCCM3X

{
  "slug": "lm431sccm3x",
  "version": "0.1.0",
  "type": "component",
  "description": "onsemi Voltage Reference, SOT-23. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
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  "component": {
    "mpn": "LM431SCCM3X",
    "manufacturer": "onsemi",
    "package": "SOT-23",
    "pin_count": 3,
    "category": "Power Management (PMIC)",
    "subcategory": "Voltage Reference",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588911824695660544",
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    "distributor_links": {
      "lcsc": "C457742"
    },
    "distributor_check": {
      "checked_at": "2026-10-18T10:36:24Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "quota"
      },
      "mouser": {
        "pn": null,
        "status": "quota"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "Cathode",
        "type": "passive",
        "description": "Cathode is the regulated output; the datasheet limits VKA to 36 V recommended (37 V absolute maximum) and continuous IKA to 1 to 100 mA recommended (−100 to +150 mA absolute range)."
      },
      {
        "number": "2",
        "name": "Ref",
        "type": "input",
        "description": "Reference input sets the output voltage through two external resistors, with VREF about 2.5 V (2.482 V to 2.508 V for the LM431SC at IKA = 10 mA) and an absolute IREF range of −0.05 to +10 mA."
      },
      {
        "number": "3",
        "name": "Anode",
        "type": "passive",
        "description": "Anode is the shunt-regulator return terminal; the datasheet gives no separate voltage or current rating for this pin beyond the cathode-to-anode conditions in the electrical characteristics."
      }
    ],
    "provenance": {
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        "guards": "pin_guards 0.1: passed",
        "guard_notes": [
          "extractor flagged: The SOT-23 pinout drawings are not labeled cleanly in the extracted text. The M3 pinout (1 Cathode, ; The datasheet does not state a specific electrical limit or function for the Anode pin. The descript; The schema has no field for headline specs, so the ratings above appear only inside pin descriptions"
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        "cost_usd": 0.0477,
        "at": "2026-10-18T10:34:29"
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