main
Ray Set visibility: public 44e4534 8d ago
{
  "schema_version": 1,
  "type": "component",
  "slug": "mmbt4240",
  "title": "MMBT4240",
  "brief": "ST Semtech Zener Diodes, SOT-23. 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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    "package": "SOT-23",
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    "category": "Diodes",
    "subcategory": "Zener Diodes",
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      "source": "Component Ocean /api/assign-pns",
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        "status": "quota"
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      {
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        "at": "2026-10-18T17:53:31"
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        "seat": "z = 0",
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        "checked": "2026-10-18",
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  "metadata": {
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      "Manufacturer": "ST Semtech",
      "Package": "SOT-23",
      "Category": "Diodes",
      "Pins": "3"
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      "rows": [
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          "name": "Collector Emitter Voltage",
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        {
          "name": "Peak Collector Current",
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        {
          "name": "Peak Base Current",
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        {
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          "unit": "mW",
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          "unit": "℃",
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        {
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        {
          "name": "Thermal Resistance - Junction to Ambient",
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        {
          "name": "Thermal Resistance - Junction to Ambient",
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        {
          "name": "DC Current Gain",
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        {
          "name": "DC Current Gain",
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          "name": "DC Current Gain",
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          "min": 80,
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        {
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          "unit": "nA",
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        {
          "name": "Emitter Base Cutoff Current",
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          "conditions": "VEB = 4 V",
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        {
          "name": "Collector Emitter Saturation Voltage",
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          "conditions": "IC = 100 mA, IB = 1 mA",
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        {
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        {
          "name": "Collector Emitter Saturation Voltage",
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        {
          "name": "Collector Emitter Saturation Voltage",
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        {
          "name": "Base Emitter Saturation Voltage",
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        {
          "name": "Base Emitter Turn-on Voltage",
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          "conditions": "VCE = 2 V, IC = 100 mA",
          "source_page": 2,
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        },
        {
          "name": "Transition Frequency",
          "symbol": "fT",
          "kind": "electrical",
          "unit": "MHz",
          "min": 100,
          "typ": 230,
          "max": null,
          "conditions": "VCE = 10 V, IC = 100 mA, f = 100 MHz",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Collector Output Capacitance",
          "symbol": "Cob",
          "kind": "electrical",
          "unit": "pF",
          "min": null,
          "typ": 10,
          "max": 20,
          "conditions": "VCB = 10 V, f = 1 MHz",
          "source_page": 2,
          "source": "datasheet"
        }
      ]
    }
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  "discovery_pitch": "MMBT4240 (ST Semtech) component page: datasheet pinout, KiCad symbol, footprint and 3D.",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
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