main
Ray Set visibility: public 61c33f1 16d ago
{
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  "type": "component",
  "slug": "szp6smb27at3g",
  "title": "SZP6SMB27AT3G",
  "brief": "Littelfuse ESD And Surge Protection (TVS/ESD), SMB. 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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    "mpn": "SZP6SMB27AT3G",
    "manufacturer": "Littelfuse",
    "package": "SMB",
    "pin_count": 2,
    "category": "Circuit Protection",
    "subcategory": "ESD And Surge Protection (TVS/ESD)",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588922214120886272",
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    "distributor_links": {
      "lcsc": "C1972912",
      "digikey": "SZP6SMB27AT3GOSTR-ND",
      "mouser": "863-SZP6SMB27AT3G"
    },
    "distributor_check": {
      "checked_at": "2026-10-15T09:32:01Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "SZP6SMB27AT3GOSTR-ND",
        "status": "found",
        "lifecycle": "Active"
      },
      "mouser": {
        "pn": "863-SZP6SMB27AT3G",
        "status": "found"
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    "pins": [
      {
        "number": "1",
        "name": "Cathode",
        "type": "passive",
        "description": "Cathode terminal of the uni-directional TVS, identified by the color band on the package and the cathode mark on the tape cover."
      },
      {
        "number": "2",
        "name": "Anode",
        "type": "passive",
        "description": "Anode terminal of the uni-directional TVS, the terminal opposite the cathode band, used for the forward (clamping) path."
      }
    ],
    "provenance": {
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      "factory_chain": {
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        "extractor": "extract_pins 0.3",
        "primary_model": "claude-haiku-5-5",
        "primary_mode": "text",
        "consensus_model": "claude-sonnet-5-5",
        "consensus": "agreed",
        "guards": "pin_guards 0.1: passed",
        "guard_notes": [
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        "pages_sent": 7,
        "cost_usd": 0.0386,
        "at": "2026-10-15T09:31:47"
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      "datasheet": {
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        "pages": 7,
        "sha256": "baf561fbcd6cd66c",
        "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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        "seat": "z = 0",
        "extents_mm": [
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        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "029466277d91e9f5492556be93e46611049e07115c7913880c547afa96058ed4",
        "checked": "2026-10-15",
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  "metadata": {
    "specs": {
      "Manufacturer": "Littelfuse",
      "Package": "SMB",
      "Category": "Circuit Protection",
      "Pins": "2"
    },
    "characteristics": {
      "version": 1,
      "source": "datasheet",
      "datasheet_sha256": "baf561fbcd6cd66c59b52d2754d03f3bf1d159b78ffd9a6c808810862a547afc",
      "rows": [
        {
          "name": "Breakdown Voltage (uni-directional, 27 V type)",
          "symbol": "VBR",
          "kind": "electrical",
          "unit": "Volts",
          "min": 25.7,
          "typ": 27.05,
          "max": 28.4,
          "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",
          "source_page": 3,
          "source": "datasheet"
        },
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          "name": "Forward Voltage (uni-directional)",
          "symbol": "VF",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 3.5,
          "conditions": "@ IF = 30 A (Note 5)",
          "source_page": 2,
          "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 (Note 1), 10/1000 µs, non-repetitive",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "DC Power Dissipation (measured zero lead length)",
          "symbol": "PD",
          "kind": "absolute_maximum",
          "unit": "W",
          "min": null,
          "typ": null,
          "max": 3,
          "conditions": "@ TL = 75°C (Note 2)",
          "source_page": 1,
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        },
        {
          "name": "DC Power Dissipation",
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          "typ": null,
          "max": 0.55,
          "conditions": "@ TA = 25°C (Note 3)",
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          "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, PW = 8.3 ms (Note 4), uni-directional 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": "recommended_operating",
          "unit": "V",
          "min": null,
          "typ": 23.1,
          "max": null,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Clamping Voltage",
          "symbol": "VC",
          "kind": "electrical",
          "unit": "Volts",
          "min": null,
          "typ": 37.5,
          "max": null,
          "conditions": "@ IPP = 16 A (Note 8)",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Breakdown Voltage Temperature Coefficient",
          "symbol": "αVBR",
          "kind": "temperature_coefficient",
          "unit": "%/°C",
          "min": null,
          "typ": 0.096,
          "max": null,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Typical Junction Capacitance",
          "symbol": "C",
          "kind": "electrical",
          "unit": "pF",
          "min": null,
          "typ": 700,
          "max": null,
          "conditions": "Bias Voltage = 0 V, F = 1 MHz, TJ = 25°C (Note 9)",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Thermal Resistance from 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 Derating Above 75°C",
          "symbol": "",
          "kind": "thermal",
          "unit": "mW/°C",
          "min": null,
          "typ": 40,
          "max": null,
          "conditions": "Derate above TL = 75°C",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Thermal Resistance from 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": "DC Power Derating Above 25°C",
          "symbol": "",
          "kind": "thermal",
          "unit": "mW/°C",
          "min": null,
          "typ": 4.4,
          "max": null,
          "conditions": "Derate above TA = 25°C",
          "source_page": 1,
          "source": "datasheet"
        }
      ]
    }
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  "discovery_pitch": "SZP6SMB27AT3G (Littelfuse) component page: datasheet pinout, KiCad symbol, footprint and 3D.",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
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