3SMA5919B

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  "title": "3SMA5919B",
  "brief": "YFW Zener Diodes, SMA. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
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    "mpn": "3SMA5919B",
    "manufacturer": "YFW",
    "package": "SMA",
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    "category": "Diodes",
    "subcategory": "Zener Diodes",
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    "distributor_links": {
      "lcsc": "C25836761"
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    "distributor_check": {
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      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "no match"
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      "mouser": {
        "pn": null,
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    "pins": [
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        "number": "1",
        "name": "Cathode",
        "type": "passive",
        "description": "The cathode is the end marked by the color band, per the datasheet polarity note (\"Color band denotes cathode end except Bipolar\"). The datasheet gives no further electrical limits for this pin."
      },
      {
        "number": "2",
        "name": "Anode",
        "type": "passive",
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      }
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          "extractor flagged: The datasheet covers the 3SMA5913B through 3SMA5956B family in the SMA package, and 3SMA5919B falls "
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        "at": "2026-10-16T03:47:13"
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      "cad": "KiCad official (CC-BY-SA 4.0)",
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        "total": 2,
        "described": 2,
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        "refuses_to_fabricate": true
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        "zmin_mm": 0,
        "centre_offset_mm": 0,
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        "sha256": "1cfddd4e3b1bf22b8fc6ee3258c2aade882ed7b85b528e23b9db42437775a1db",
        "checked": "2026-10-16",
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  },
  "metadata": {
    "specs": {
      "Manufacturer": "YFW",
      "Package": "SMA",
      "Category": "Diodes",
      "Pins": "2"
    },
    "characteristics": {
      "version": 1,
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          "conditions": "Ta = 25°C; IZT = 134 mA",
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        {
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          "conditions": "Ta = 25°C; IZT = 134 mA",
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          "name": "Maximum DC Zener current",
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          "typ": null,
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          "conditions": "DC",
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        {
          "name": "Forward voltage",
          "symbol": "VF",
          "kind": "electrical",
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          "min": null,
          "typ": null,
          "max": 1.5,
          "conditions": "IF = 200 mA (DC)",
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        },
        {
          "name": "Power dissipation",
          "symbol": "PD",
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          "unit": "W",
          "min": null,
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          "max": 3,
          "conditions": "TC = 75°C",
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        {
          "name": "Zener impedance",
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          "kind": "electrical",
          "unit": "Ω",
          "min": null,
          "typ": 2.5,
          "max": null,
          "conditions": "@ IZT = 134 mA",
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        },
        {
          "name": "Zener impedance (knee)",
          "symbol": "ZZK",
          "kind": "electrical",
          "unit": "Ω",
          "min": null,
          "typ": 600,
          "max": null,
          "conditions": "@ IZK = 1 mA",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Reverse leakage current",
          "symbol": "IR",
          "kind": "electrical",
          "unit": "μA",
          "min": null,
          "typ": 10,
          "max": null,
          "conditions": "@ VR = 2 V",
          "source_page": 2,
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        }
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  "discovery_pitch": "3SMA5919B (YFW) component page: datasheet pinout, KiCad symbol, footprint and 3D.",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
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