TL431ACL5T

{
  "schema_version": 1,
  "type": "component",
  "slug": "tl431acl5t",
  "title": "TL431ACL5T",
  "brief": "STMicroelectronics Voltage References, SOT-23-5. Pinout reviewed by a person against the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.1.0",
  "license": "CC-BY-SA-4.0",
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  "component": {
    "mpn": "TL431ACL5T",
    "manufacturer": "STMicroelectronics",
    "package": "SOT-23-5",
    "pin_count": 5,
    "category": "Power Supply Chip",
    "subcategory": "Voltage References",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588927341754400768",
    "parts": {
      "symbol": "tl431acl5t.kicad_sym",
      "footprint": "tl431acl5t.kicad_mod",
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      "model_3d_step_plain": "tl431acl5t.step",
      "lbr": "tl431acl5t.lbr"
    },
    "distributor_links": {
      "lcsc": "C2157665",
      "digikey": "497-TL431ACL5TTR-ND",
      "mouser": "511-TL431ACL5T"
    },
    "distributor_check": {
      "checked_at": "2026-09-29T23:32:49Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "497-TL431ACL5TTR-ND",
        "status": "found",
        "lifecycle": "Active"
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        "pn": "511-TL431ACL5T",
        "status": "found"
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    },
    "pins": [
      {
        "number": "1",
        "name": "Anode",
        "type": "power_in",
        "description": "Anode terminal; connection to high-side supply voltage (operating voltage Vref to 36 V relative to cathode)."
      },
      {
        "number": "2",
        "name": "NC",
        "type": "unconnected",
        "description": "No connect; unused internal connection."
      },
      {
        "number": "3",
        "name": "Ref",
        "type": "input",
        "description": "Reference input pin for voltage divider feedback network that programs the regulated output voltage (reference input current -0.05 to +10 mA, absolute maximum per Table 1)."
      },
      {
        "number": "4",
        "name": "NC",
        "type": "unconnected",
        "description": "No connect; unused internal connection."
      },
      {
        "number": "5",
        "name": "Cathode",
        "type": "output",
        "description": "Cathode terminal; regulated reference output point where the device sinks current from anode with capability of 1 to 100 mA (sink current per Table 2, page 4)."
      }
    ],
    "provenance": {
      "extractor": "ds2sf",
      "datasheet": {
        "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588927341754400768",
        "pages": 22,
        "sha256": "d174b1869a9d426d",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 5,
        "described": 5,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    }
  },
  "metadata": {
    "specs": {
      "Manufacturer": "STMicroelectronics",
      "Package": "SOT-23-5",
      "Category": "Power Supply Chip",
      "Pins": "5"
    }
  },
  "variants": [],
  "sections": [
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    "viewers",
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  "discovery_triggers": [
    "tl431acl5t"
  ],
  "discovery_pitch": "TL431ACL5T (STMicroelectronics) component page: datasheet pinout, KiCad symbol, footprint and 3D.",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
  },
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
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  "files": [
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    "README.md",
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    "tl431acl5t.glb",
    "tl431acl5t.step",
    "tl431acl5t.lbr",
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    "viewers/symbol.html",
    "viewers/footprint.html"
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  "visibility": {
    "public": true
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}