CZRW5231B-HF

{
  "schema_version": 1,
  "type": "component",
  "slug": "czrw5231b-hf",
  "title": "CZRW5231B-HF",
  "brief": "Comchip Zener Diodes, SOD-123. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.1.0",
  "license": "CC-BY-SA-4.0",
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  "component": {
    "mpn": "CZRW5231B-HF",
    "manufacturer": "Comchip",
    "package": "SOD-123",
    "pin_count": 2,
    "category": "Diodes",
    "subcategory": "Zener Diodes",
    "datasheet": "https://datasheet.lcsc.com/datasheet/pdf/61fdec3e19edacc317efe4203dd5e07f.pdf",
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      "lbr": "czrw5231b-hf.lbr"
    },
    "distributor_links": {
      "lcsc": "C3014260",
      "digikey": "CZRW5231B-HF-ND",
      "mouser": "750-CZRW5231B-HF"
    },
    "distributor_check": {
      "checked_at": "2026-10-23T12:34:21Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "CZRW5231B-HF-ND",
        "status": "found",
        "lifecycle": "Not For New Designs"
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      "mouser": {
        "pn": "750-CZRW5231B-HF",
        "status": "found"
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    },
    "pins": [
      {
        "number": "1",
        "name": "K",
        "type": "passive",
        "description": "Cathode, marked by the cathode band on the SOD-123 package; the Zener voltage of CZRW5231B-HF is 5.1V nominal (4.85V min to 5.36V max) at IZT=20mA."
      },
      {
        "number": "2",
        "name": "A",
        "type": "passive",
        "description": "Anode terminal of the Zener diode in the SOD-123 package, as shown in the two-terminal circuit diagram."
      }
    ],
    "provenance": {
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      "factory_chain": {
        "factory": "2.0.0",
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        "consensus": "agreed",
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        "guard_notes": [
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        "cost_usd": 0.0466,
        "at": "2026-10-23T12:34:07"
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        "pages": 6,
        "sha256": "b207e4d9b2bbcdd9",
        "source_tier": "lcsc"
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      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 2,
        "described": 2,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
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        "role": "plain",
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        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
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          1.1
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        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "132323445e3d1f9231e81c083cd88a33cd204dd8b96063bb2ed1f3ab4470c7e7",
        "checked": "2026-10-23",
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  },
  "metadata": {
    "specs": {
      "Manufacturer": "Comchip",
      "Package": "SOD-123",
      "Category": "Diodes",
      "Pins": "2"
    },
    "characteristics": {
      "version": 1,
      "source": "datasheet",
      "datasheet_sha256": "b207e4d9b2bbcdd9c7f5b01228c6c65caba7b8ae0487ab621ff10710c189fae3",
      "rows": [
        {
          "name": "Zener Voltage (min/max)",
          "symbol": "VZ",
          "kind": "electrical",
          "unit": "V",
          "min": 4.85,
          "typ": 5.1,
          "max": 5.36,
          "conditions": "@IZT, Ta=25°C",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Zener test current",
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          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": 20,
          "max": null,
          "conditions": "Ta=25°C",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Operating resistance",
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        },
        {
          "name": "Rising operating resistance",
          "symbol": "ZZK",
          "kind": "electrical",
          "unit": "Ohm",
          "min": null,
          "typ": null,
          "max": 1600,
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          "source": "datasheet"
        },
        {
          "name": "Rising operating resistance test current",
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          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": null,
          "max": 0.25,
          "conditions": "",
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          "source": "datasheet"
        },
        {
          "name": "Reverse current",
          "symbol": "IR",
          "kind": "electrical",
          "unit": "µA",
          "min": null,
          "typ": null,
          "max": 5,
          "conditions": "@VR=2.0V",
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        },
        {
          "name": "Reverse voltage",
          "symbol": "VR",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 2,
          "conditions": "for IR",
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          "source": "datasheet"
        },
        {
          "name": "Forward voltage",
          "symbol": "VF",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 0.9,
          "conditions": "IF=10mA, Tp ≤ 1.0ms pulses",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Power dissipation",
          "symbol": "PD",
          "kind": "absolute_maximum",
          "unit": "mW",
          "min": null,
          "typ": null,
          "max": 350,
          "conditions": "Ta=25°C, device on ceramic PCB 7.6x9.4x0.87mm, pad 25mm²",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Operating and storage temperature range",
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          "unit": "°C",
          "min": -65,
          "typ": null,
          "max": 150,
          "conditions": "",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Thermal resistance, junction to ambient air",
          "symbol": "RθJA",
          "kind": "thermal",
          "unit": "°C/W",
          "min": null,
          "typ": 357,
          "max": null,
          "conditions": "Device mounted on ceramic PCB",
          "source_page": 1,
          "source": "datasheet"
        }
      ]
    }
  },
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  "discovery_triggers": [
    "czrw5231b-hf"
  ],
  "discovery_pitch": "CZRW5231B-HF (Comchip) component page: datasheet pinout, KiCad symbol, footprint and 3D.",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
  },
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}