main
Ray Set visibility: public 3f70f6e 2d ago
{
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  "type": "component",
  "slug": "smbj5342b-tp",
  "title": "SMBJ5342B-TP",
  "brief": "MCC(Micro Commercial Components) Zener Diodes, SMB(DO-214AA). 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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    "category": "Diodes",
    "subcategory": "Zener Diodes",
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      "lbr": "smbj5342b-tp.lbr"
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    "distributor_links": {
      "lcsc": "C132286"
    },
    "distributor_check": {
      "checked_at": "2026-10-22T22:47:27Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "deferred",
        "error": "shared DigiKey quota guard: 879 calls left today"
      },
      "mouser": {
        "pn": null,
        "status": "quota"
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    },
    "pins": [
      {
        "number": "1",
        "name": "K",
        "type": "passive",
        "description": "Cathode, identified by the cathode band/mark on the SMB (DO-214AA) body; SMBJ5342B has a nominal regulator voltage VZ of 6.8V at IZ = 175mA (±5%) and 5.0W steady-state power dissipation."
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        "number": "2",
        "name": "A",
        "type": "passive",
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      }
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    "provenance": {
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        "consensus": "agreed",
        "guards": "pin_guards 0.1: passed",
        "guard_notes": [
          "extractor flagged: The datasheet does not print pin numbers or name the anode terminal. It shows only the cathode mark/"
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        "cost_usd": 0.056,
        "at": "2026-10-22T22:47:17"
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      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
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        "described": 2,
        "cites_pages": true,
        "refuses_to_fabricate": true
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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": "MCC(Micro Commercial Components)",
      "Package": "SMB(DO-214AA)",
      "Category": "Diodes",
      "Pins": "2"
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      "rows": [
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          "name": "Zener tolerance on nominal VZ",
          "symbol": "VZ",
          "kind": "tolerance",
          "unit": "%",
          "min": -5,
          "typ": null,
          "max": 5,
          "conditions": "Devices listed have ±5% tolerance on nominal VZ",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Regulator voltage (nominal)",
          "symbol": "VZ",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": 6.8,
          "max": null,
          "conditions": "IZ=175 mA, 25°C",
          "source_page": 2,
          "source": "datasheet"
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        {
          "name": "Maximum dynamic impedance",
          "symbol": "ZZT",
          "kind": "electrical",
          "unit": "Ω",
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          "typ": null,
          "max": 1,
          "conditions": "at test current IZ",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Maximum reverse current",
          "symbol": "IR",
          "kind": "electrical",
          "unit": "µA",
          "min": null,
          "typ": null,
          "max": 10,
          "conditions": "VR=5.2 V",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Maximum regulator current",
          "symbol": "IZM",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": null,
          "max": 700,
          "conditions": "",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Maximum dynamic knee impedance",
          "symbol": "ZZK",
          "kind": "electrical",
          "unit": "Ω",
          "min": null,
          "typ": null,
          "max": 200,
          "conditions": "@1.0mA",
          "source_page": 2,
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        },
        {
          "name": "Maximum surge current",
          "symbol": "IZSM",
          "kind": "absolute_maximum",
          "unit": "A",
          "min": null,
          "typ": null,
          "max": 11.5,
          "conditions": "Nonrecurring sine wave 8.3 ms",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Maximum voltage regulation",
          "symbol": "ΔVZ",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 0.15,
          "conditions": "Difference between VZ at 10% and 50% IZM",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Maximum forward voltage",
          "symbol": "VF",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 1.2,
          "conditions": "IF=1.0mA",
          "source_page": 1,
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        {
          "name": "Test current",
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          "conditions": "",
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        },
        {
          "name": "Steady state power dissipation",
          "symbol": "P(AV)",
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          "unit": "W",
          "min": null,
          "typ": null,
          "max": 5,
          "conditions": "Note 3: lead temperature 75°C at mounting plane, derate linearly above 75°C to zero at 150°C",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Operating junction temperature range",
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          "unit": "°C",
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          "typ": null,
          "max": 150,
          "conditions": "",
          "source_page": 1,
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        {
          "name": "Storage temperature range",
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          "unit": "°C",
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          "typ": null,
          "max": 150,
          "conditions": "",
          "source_page": 1,
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        },
        {
          "name": "Thermal resistance junction to lead",
          "symbol": "RθJL",
          "kind": "thermal",
          "unit": "°C/W",
          "min": null,
          "typ": 15,
          "max": null,
          "conditions": "Junction to Lead",
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          "source": "datasheet"
        },
        {
          "name": "Thermal resistance junction to ambient",
          "symbol": "RθJA",
          "kind": "thermal",
          "unit": "°C/W",
          "min": null,
          "typ": 90,
          "max": null,
          "conditions": "Junction to Ambient (Note 2)",
          "source_page": 1,
          "source": "datasheet"
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  "discovery_pitch": "SMBJ5342B-TP (MCC(Micro Commercial Components)) component page: datasheet pinout, KiCad symbol, footprint and 3D.",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
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