SMBJ30D-M3

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  "slug": "smbj30d-m3",
  "title": "SMBJ30D-M3",
  "brief": "Vishay Intertech TVS, SMB(DO-214AA). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.1.0",
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  "component": {
    "mpn": "SMBJ30D-M3",
    "manufacturer": "Vishay Intertech",
    "package": "SMB(DO-214AA)",
    "pin_count": 2,
    "category": "Circuit Protection",
    "subcategory": "TVS",
    "datasheet": "https://datasheet.lcsc.com/datasheet/pdf/db44ec316a4d70e741b41bfb69eea28b.pdf",
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      "lbr": "smbj30d-m3.lbr"
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    "distributor_links": {
      "lcsc": "C1973570"
    },
    "distributor_check": {
      "checked_at": "2026-10-22T21:47:45Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "quota"
      },
      "mouser": {
        "pn": null,
        "status": "quota"
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    },
    "pins": [
      {
        "number": "1",
        "name": "K",
        "type": "passive",
        "description": "Cathode terminal, marked by the cathode band on the unidirectional SMBJ30D-M3, with VWM 30 V and VBR 33.8 V to 36.3 V at 1.0 mA."
      },
      {
        "number": "2",
        "name": "A",
        "type": "passive",
        "description": "Anode terminal at the end opposite the cathode band, with a maximum clamping voltage of 47.7 V at IPPM of 12.6 A (10/1000 μs)."
      }
    ],
    "provenance": {
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        "primary_mode": "text",
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        "consensus": "agreed",
        "guards": "pin_guards 0.1: passed",
        "guard_notes": [
          "extractor flagged: The datasheet prints no pin numbers for this two-terminal part. It only identifies the cathode by th; SMBJ30D is the unidirectional type because it has no CD suffix. The datasheet says the band denotes "
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        "cost_usd": 0.0743,
        "at": "2026-10-22T21:47:35"
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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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        "extents_mm": [
          5.3,
          3.55,
          2.15
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        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "029466277d91e9f5492556be93e46611049e07115c7913880c547afa96058ed4",
        "checked": "2026-10-22",
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  "metadata": {
    "specs": {
      "Manufacturer": "Vishay Intertech",
      "Package": "SMB(DO-214AA)",
      "Category": "Circuit Protection",
      "Pins": "2"
    },
    "appearance": {
      "contacts": {
        "quote": "Terminals: matte tin plated leads, solderable per J-STD-002 and JESD 22-B102",
        "page": 1,
        "doc": "ds.pdf",
        "plating": "tin"
      },
      "version": 1,
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    "characteristics": {
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      "rows": [
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          "name": "Breakdown voltage",
          "symbol": "VBR",
          "kind": "electrical",
          "unit": "V",
          "min": 33.8,
          "typ": null,
          "max": 36.3,
          "conditions": "at IT = 1.0 mA, pulse test tp ≤ 50 ms",
          "source_page": 2,
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        },
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          "name": "Test current",
          "symbol": "IT",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": 1,
          "max": null,
          "conditions": "",
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        },
        {
          "name": "Stand-off voltage",
          "symbol": "VWM",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": 30,
          "max": null,
          "conditions": "",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Maximum reverse leakage",
          "symbol": "ID",
          "kind": "electrical",
          "unit": "μA",
          "min": null,
          "typ": null,
          "max": 0.5,
          "conditions": "at VWM",
          "source_page": 2,
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        },
        {
          "name": "Maximum peak pulse surge current",
          "symbol": "IPPM",
          "kind": "electrical",
          "unit": "A",
          "min": null,
          "typ": null,
          "max": 12.6,
          "conditions": "surge current waveform per fig. 3, derate per fig. 2",
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        },
        {
          "name": "Maximum clamping voltage",
          "symbol": "VC",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 47.7,
          "conditions": "at IPPM",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "VBR tolerance",
          "symbol": "VBR",
          "kind": "tolerance",
          "unit": "%",
          "min": -3.5,
          "typ": null,
          "max": 3.5,
          "conditions": "",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Peak pulse power dissipation",
          "symbol": "PPPM",
          "kind": "absolute_maximum",
          "unit": "W",
          "min": null,
          "typ": null,
          "max": 600,
          "conditions": "10/1000 μs waveform, TA = 25 °C",
          "source_page": 1,
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        },
        {
          "name": "Power dissipation",
          "symbol": "PD",
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          "min": null,
          "typ": null,
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          "conditions": "TM = 50 °C, infinite heatsink",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Power dissipation",
          "symbol": "PD",
          "kind": "absolute_maximum",
          "unit": "W",
          "min": null,
          "typ": null,
          "max": 1,
          "conditions": "TA = 25 °C, minimum recommended pad layout",
          "source_page": 1,
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        },
        {
          "name": "Operating junction and storage temperature range",
          "symbol": "TJ, TSTG",
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          "min": -55,
          "typ": null,
          "max": 150,
          "conditions": "",
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        },
        {
          "name": "Thermal resistance junction to ambient",
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          "kind": "thermal",
          "unit": "°C/W",
          "min": null,
          "typ": 125,
          "max": null,
          "conditions": "Mounted on minimum recommended pad layout",
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        },
        {
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          "kind": "thermal",
          "unit": "°C/W",
          "min": null,
          "typ": 100,
          "max": null,
          "conditions": "Mounted on 5.0 mm x 5.0 mm copper pad area",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Thermal resistance junction to mount",
          "symbol": "RθJM",
          "kind": "thermal",
          "unit": "°C/W",
          "min": null,
          "typ": 20,
          "max": null,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        }
      ]
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  "discovery_pitch": "SMBJ30D-M3 (Vishay Intertech) component page: datasheet pinout, KiCad symbol, footprint and 3D.",
  "author": {
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    "email": "[email protected]"
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