TCLLZ24VTR

{
  "schema_version": 1,
  "type": "component",
  "slug": "tcllz24vtr",
  "title": "TCLLZ24VTR",
  "brief": "Tak Cheong Zener Diodes, LL-34. 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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    "diodes",
    "tcllz24vtr",
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    "extractor-text"
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  "component": {
    "mpn": "TCLLZ24VTR",
    "manufacturer": "Tak Cheong",
    "package": "LL-34",
    "pin_count": 2,
    "category": "Diodes",
    "subcategory": "Zener Diodes",
    "datasheet": "https://datasheet.lcsc.com/datasheet/pdf/22316caf9c221d0f7f5ed10d05fba338.pdf",
    "parts": {
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      "model_3d_plain": "tcllz24vtr.glb"
    },
    "distributor_links": {
      "lcsc": "C261172"
    },
    "distributor_check": {
      "checked_at": "2026-10-24T00:07:12Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "no match"
      },
      "mouser": {
        "pn": null,
        "status": "no match"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "K",
        "type": "passive",
        "description": "Cathode, marked by the color band (blue) on the LL-34 body, denotes negative polarity; the zener operates with this pin positive relative to the anode in reverse breakdown (VZ 24 V nominal at IZT 5 mA for TCLLZ24V)."
      },
      {
        "number": "2",
        "name": "A",
        "type": "passive",
        "description": "Anode, the terminal opposite the cathode band on the LL-34 (Mini-MELF) package; forward voltage is 1.2 V maximum at IF = 200 mA."
      }
    ],
    "provenance": {
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      "factory_chain": {
        "factory": "2.0.0",
        "extractor": "extract_pins 0.3",
        "primary_model": "claude-sonnet-5-5",
        "primary_mode": "text",
        "consensus_model": "claude-sonnet-5-5",
        "consensus": "agreed",
        "guards": "pin_guards 0.1: passed",
        "guard_notes": [
          "extractor flagged: Datasheet shows a two-terminal axial MELF diode with only Cathode/Anode labels and no pin numbers; p"
        ],
        "pages_sent": 5,
        "cost_usd": 0.0392,
        "at": "2026-10-24T00:06:51"
      },
      "datasheet": {
        "url": "https://datasheet.lcsc.com/datasheet/pdf/22316caf9c221d0f7f5ed10d05fba338.pdf",
        "pages": 5,
        "sha256": "c5238b28a9543714",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 2,
        "described": 2,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
      {
        "file": "tcllz24vtr.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          3.6,
          1.4,
          1.4
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "bab3a3356a14efb0438caca9adf53472dea34425715606e933f092f87f73f650",
        "checked": "2026-10-24",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "Tak Cheong",
      "Package": "LL-34",
      "Category": "Diodes",
      "Pins": "2"
    },
    "appearance": {
      "contacts": {
        "quote": " Matte Tin (Sn) Terminal Finish  Color band Indicates Negative Polarity",
        "page": 1,
        "doc": "ds.pdf",
        "plating": "tin"
      },
      "version": 1,
      "datasheet_sha256": "c5238b28a954371414948ecaa98c898eb8d231934621428001a13d40cfd5e1de"
    },
    "characteristics": {
      "version": 1,
      "source": "datasheet",
      "datasheet_sha256": "c5238b28a954371414948ecaa98c898eb8d231934621428001a13d40cfd5e1de",
      "rows": [
        {
          "name": "Zener Voltage (nominal)",
          "symbol": "VZ",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": 24,
          "max": null,
          "conditions": "IZT = 5 mA",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Zener Voltage Tolerance",
          "symbol": "",
          "kind": "tolerance",
          "unit": "%",
          "min": -5,
          "typ": null,
          "max": 5,
          "conditions": "standard tolerance on nominal zener voltage",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Zener Test Current",
          "symbol": "IZT",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": 5,
          "max": null,
          "conditions": "",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Zener Impedance",
          "symbol": "ZZT",
          "kind": "electrical",
          "unit": "Ω",
          "min": null,
          "typ": null,
          "max": 35,
          "conditions": "@ IZT",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Reverse Current",
          "symbol": "IR",
          "kind": "electrical",
          "unit": "µA",
          "min": null,
          "typ": null,
          "max": 0.2,
          "conditions": "@ VR = 19 V",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Reverse Voltage",
          "symbol": "VR",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": 19,
          "max": null,
          "conditions": "test voltage for IR",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Forward Voltage",
          "symbol": "VF",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 1.2,
          "conditions": "IF = 200 mA",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Power Dissipation",
          "symbol": "PD",
          "kind": "absolute_maximum",
          "unit": "mW",
          "min": null,
          "typ": null,
          "max": 500,
          "conditions": "TA = 25°C",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Storage Temperature Range",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": -65,
          "typ": null,
          "max": 175,
          "conditions": "TA = 25°C",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Operating Junction Temperature",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": null,
          "typ": null,
          "max": 175,
          "conditions": "TA = 25°C",
          "source_page": 1,
          "source": "datasheet"
        }
      ]
    }
  },
  "variants": [],
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  "discovery_triggers": [
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  "discovery_pitch": "TCLLZ24VTR (Tak Cheong) component page: datasheet pinout, KiCad symbol, footprint and 3D.",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
  },
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  "visibility": {
    "public": true
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}