SZP6SMB20AT3G

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  "slug": "szp6smb20at3g",
  "title": "SZP6SMB20AT3G",
  "brief": "Littelfuse ESD And Surge Protection (TVS/ESD), SMB. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
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    "mpn": "SZP6SMB20AT3G",
    "manufacturer": "Littelfuse",
    "package": "SMB",
    "pin_count": 2,
    "category": "Circuit Protection",
    "subcategory": "ESD And Surge Protection (TVS/ESD)",
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    "distributor_links": {
      "lcsc": "C1973949",
      "digikey": "F11619TR-ND",
      "mouser": "863-SZP6SMB20AT3G"
    },
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      "digikey": {
        "pn": "F11619TR-ND",
        "status": "found",
        "lifecycle": "Active"
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    "pins": [
      {
        "number": "1",
        "name": "Cathode",
        "type": "passive",
        "description": "Cathode terminal of the unidirectional TVS, marked by the color band on the package; the SZP6SMB20AT3G is a uni-directional part (suffix A, not CA)."
      },
      {
        "number": "2",
        "name": "Anode",
        "type": "passive",
        "description": "Anode terminal of the unidirectional TVS, opposite the cathode band, for clamping transients at the 20 V working peak reverse voltage (VRWM 17.1 V min, 20 V nom, 21 V max breakdown range on page 3)."
      }
    ],
    "provenance": {
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        "primary_model": "claude-haiku-5-5",
        "primary_mode": "text",
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        ],
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        "cost_usd": 0.0392,
        "at": "2026-10-16T10:54:48"
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        "sha256": "baf561fbcd6cd66c",
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      "cad": "KiCad official (CC-BY-SA 4.0)",
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        "zmin_mm": 0,
        "centre_offset_mm": 0,
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  "metadata": {
    "specs": {
      "Manufacturer": "Littelfuse",
      "Package": "SMB",
      "Category": "Circuit Protection",
      "Pins": "2"
    },
    "appearance": {
      "contacts": {
        "quote": "and the terminal finish material is tin(Sn) (IPC/",
        "page": 1,
        "doc": "ds.pdf",
        "plating": "tin"
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      "rows": [
        {
          "name": "Breakdown voltage (VBR), minimum",
          "symbol": "VBR",
          "kind": "electrical",
          "unit": "V",
          "min": 19,
          "typ": null,
          "max": null,
          "conditions": "@ IT = 1 mA (Note 7), TA = 25°C",
          "source_page": 3,
          "source": "datasheet"
        },
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          "name": "Breakdown voltage (VBR), nominal",
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          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": 20,
          "max": null,
          "conditions": "@ IT = 1 mA (Note 7), TA = 25°C",
          "source_page": 3,
          "source": "datasheet"
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        {
          "name": "Breakdown voltage (VBR), maximum",
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          "min": null,
          "typ": null,
          "max": 21,
          "conditions": "@ IT = 1 mA (Note 7), TA = 25°C",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Maximum reverse leakage current",
          "symbol": "IR",
          "kind": "electrical",
          "unit": "µA",
          "min": null,
          "typ": null,
          "max": 5,
          "conditions": "@ VRWM (17.1 V)",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Peak power dissipation",
          "symbol": "PPK",
          "kind": "absolute_maximum",
          "unit": "W",
          "min": null,
          "typ": null,
          "max": 600,
          "conditions": "TL = 25°C, pulse width = 1 ms, 10/1000 µs non-repetitive (Note 1)",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "DC power dissipation at TL = 75°C (measured zero lead length)",
          "symbol": "PD",
          "kind": "absolute_maximum",
          "unit": "W",
          "min": null,
          "typ": null,
          "max": 3,
          "conditions": "TL = 75°C, measured zero lead length (Note 2)",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Derate above 75°C (lead)",
          "symbol": "",
          "kind": "thermal",
          "unit": "mW/°C",
          "min": null,
          "typ": 40,
          "max": null,
          "conditions": "Derate above TL = 75°C (Note 2)",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Thermal resistance, junction-to-lead",
          "symbol": "RθJL",
          "kind": "thermal",
          "unit": "°C/W",
          "min": null,
          "typ": 25,
          "max": null,
          "conditions": "Measured zero lead length (Note 2)",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "DC power dissipation at TA = 25°C",
          "symbol": "PD",
          "kind": "absolute_maximum",
          "unit": "W",
          "min": null,
          "typ": null,
          "max": 0.55,
          "conditions": "TA = 25°C, Littelfuse minimum recommended footprint (Note 3)",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Derate above 25°C (ambient)",
          "symbol": "",
          "kind": "thermal",
          "unit": "mW/°C",
          "min": null,
          "typ": 4.4,
          "max": null,
          "conditions": "Derate above TA = 25°C (Note 3)",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Thermal resistance, junction-to-ambient",
          "symbol": "RθJA",
          "kind": "thermal",
          "unit": "°C/W",
          "min": null,
          "typ": 226,
          "max": null,
          "conditions": "FR-4 board, Littelfuse minimum recommended footprint (Note 3)",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Forward surge current",
          "symbol": "IFSM",
          "kind": "absolute_maximum",
          "unit": "A",
          "min": null,
          "typ": null,
          "max": 100,
          "conditions": "TA = 25°C, 1/2 sine wave (or equivalent square wave), PW = 8.3 ms, 4 pulses per minute max (Note 4), unidirectional only",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Operating and storage temperature range",
          "symbol": "TJ, Tstg",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": -65,
          "typ": null,
          "max": 150,
          "conditions": "",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Working peak reverse voltage",
          "symbol": "VRWM",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": 17.1,
          "max": null,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Clamping voltage",
          "symbol": "VC",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": 27.7,
          "max": null,
          "conditions": "@ IPP = 22 A (Note 8)",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Temperature coefficient of breakdown voltage (column printed %/°C)",
          "symbol": "",
          "kind": "temperature_coefficient",
          "unit": "%/°C",
          "min": null,
          "typ": 0.09,
          "max": null,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Typical junction capacitance",
          "symbol": "C",
          "kind": "electrical",
          "unit": "pF",
          "min": null,
          "typ": 910,
          "max": null,
          "conditions": "Bias voltage = 0 V, F = 1 MHz, TJ = 25°C (Note 9)",
          "source_page": 3,
          "source": "datasheet"
        }
      ]
    }
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    "email": "[email protected]"
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