SMDJ20A

{
  "schema_version": 1,
  "type": "component",
  "slug": "smdj20a",
  "title": "SMDJ20A",
  "brief": "Brightking Elec (TAIWAN) TVS, SMC(DO-214AB). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.1.0",
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  "component": {
    "mpn": "SMDJ20A",
    "manufacturer": "Brightking Elec (TAIWAN)",
    "package": "SMC(DO-214AB)",
    "pin_count": 2,
    "category": "Circuit Protection",
    "subcategory": "TVS",
    "datasheet": "https://datasheet.lcsc.com/datasheet/pdf/8f036c281617a08b931924e42f4520e4.pdf",
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      "lbr": "smdj20a.lbr"
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    "distributor_links": {
      "lcsc": "C310112",
      "digikey": "SMDJ20ATR-ND",
      "mouser": "576-SMDJ20A"
    },
    "distributor_check": {
      "checked_at": "2026-10-22T09:48:29Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "SMDJ20ATR-ND",
        "status": "found",
        "lifecycle": "Active"
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      "mouser": {
        "pn": "576-SMDJ20A",
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    },
    "pins": [
      {
        "number": "1",
        "name": "K",
        "type": "passive",
        "description": "Cathode terminal (marked by color band on unidirectional SMDJ20A), 20V reverse stand-off voltage, 22.2-24.5V breakdown at 1mA, 32.4V max clamping at 92.6A peak pulse current."
      },
      {
        "number": "2",
        "name": "A",
        "type": "passive",
        "description": "Anode terminal of unidirectional SMDJ20A; for bidirectional models (SMDJ20CA) there is no polarity and the terminals are interchangeable."
      }
    ],
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        "guard_notes": [
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      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 2,
        "described": 2,
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        "seat": "z = 0",
        "extents_mm": [
          8,
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        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
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        "checked": "2026-10-22",
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  },
  "metadata": {
    "specs": {
      "Manufacturer": "Brightking Elec (TAIWAN)",
      "Package": "SMC(DO-214AB)",
      "Category": "Circuit Protection",
      "Pins": "2"
    },
    "appearance": {
      "contacts": {
        "quote": "2. Mounted on 8.0mm×8.0mm copper pads to each terminal.",
        "page": 1,
        "doc": "ds.pdf",
        "material": "copper"
      },
      "version": 1,
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    "characteristics": {
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      "source": "datasheet",
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      "rows": [
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          "name": "Breakdown Voltage",
          "symbol": "VBR",
          "kind": "electrical",
          "unit": "V",
          "min": 22.2,
          "typ": null,
          "max": 24.5,
          "conditions": "@IT=1mA, TA=25℃",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Maximum Clamping Voltage",
          "symbol": "VC",
          "kind": "electrical",
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          "min": null,
          "typ": null,
          "max": 32.4,
          "conditions": "@IPP=92.6A",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Peak Pulse Current",
          "symbol": "IPP",
          "kind": "electrical",
          "unit": "A",
          "min": null,
          "typ": null,
          "max": 92.6,
          "conditions": "10/1000μs waveform",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Reverse Leakage",
          "symbol": "IR",
          "kind": "electrical",
          "unit": "μA",
          "min": null,
          "typ": null,
          "max": 2,
          "conditions": "@VRWM=20.0V",
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        },
        {
          "name": "Reverse Stand-Off Voltage",
          "symbol": "VRWM",
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          "max": null,
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        },
        {
          "name": "Test Current",
          "symbol": "IT",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": 1,
          "max": null,
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          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Peak pulse power dissipation",
          "symbol": "PPPM",
          "kind": "absolute_maximum",
          "unit": "Watts",
          "min": 3000,
          "typ": null,
          "max": null,
          "conditions": "10/1000μs waveform, Minimum",
          "source_page": 1,
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        {
          "name": "Steady state power dissipation",
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          "typ": null,
          "max": 6.5,
          "conditions": "TA=50℃",
          "source_page": 1,
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        },
        {
          "name": "Peak forward surge current",
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          "unit": "Amps",
          "min": null,
          "typ": null,
          "max": 300,
          "conditions": "8.3ms single half sine-wave superimposed on rated load",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Operating junction and storage temperature",
          "symbol": "TJ,TSTG",
          "kind": "absolute_maximum",
          "unit": "℃",
          "min": -55,
          "typ": null,
          "max": 150,
          "conditions": "",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Thermal resistance junction to lead",
          "symbol": "RθJL",
          "kind": "thermal",
          "unit": "℃/W",
          "min": null,
          "typ": 15,
          "max": null,
          "conditions": "Typical",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Thermal resistance junction to ambient",
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          "kind": "thermal",
          "unit": "℃/W",
          "min": null,
          "typ": 75,
          "max": null,
          "conditions": "Typical",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Breakdown voltage tolerance",
          "symbol": "",
          "kind": "tolerance",
          "unit": "%",
          "min": -5,
          "typ": null,
          "max": 5,
          "conditions": "VBR voltage tolerance (A suffix)",
          "source_page": 6,
          "source": "datasheet"
        }
      ]
    }
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  "discovery_pitch": "SMDJ20A (Brightking Elec (TAIWAN)) component page: datasheet pinout, KiCad symbol, footprint and 3D.",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
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