MMBT3906 PNP Transistor

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  "type": "component",
  "slug": "mmbt3906",
  "title": "MMBT3906 PNP Transistor",
  "brief": "General-purpose 40 V PNP transistor in SOT-23, the surface-mount 2N3906.",
  "version": "0.1.0",
  "license": "CC-BY-SA-4.0",
  "tags": [
    "transistor",
    "bjt",
    "pnp",
    "switching",
    "sot-23",
    "diodes"
  ],
  "component": {
    "mpn": "MMBT3906",
    "manufacturer": "Diodes Incorporated",
    "package": "SOT-23",
    "pin_count": 3,
    "category": "Discrete Semiconductor",
    "subcategory": "Bipolar Transistor (BJT)",
    "datasheet": "https://www.diodes.com/assets/Datasheets/MMBT3906.pdf",
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    "pins": [
      {
        "number": "1",
        "name": "B",
        "type": "input",
        "description": "Base terminal of the PNP BJT. Controls collector current via base-emitter forward bias (VBE(sat) typ -0.85V at IC = -10mA). Absolute max VEBO = -6.0V; peak base current IBM = -100mA."
      },
      {
        "number": "2",
        "name": "E",
        "type": "passive",
        "description": "Emitter terminal of the PNP BJT. Common reference for base drive; typically connected to the positive supply in a high-side switch or common-emitter amplifier."
      },
      {
        "number": "3",
        "name": "C",
        "type": "passive",
        "description": "Collector terminal of the PNP BJT. Rated VCBO = -40V, VCEO = -40V, IC = -200mA continuous / -350mA peak. VCE(sat) typ -0.25V at IC = -10mA, IB = -1.0mA."
      }
    ],
    "provenance": {
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        "pages": 7,
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        "source_tier": "mfr"
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      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 3,
        "described": 3,
        "cites_pages": true,
        "refuses_to_fabricate": true
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        "zmin_mm": 0,
        "centre_offset_mm": 0,
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        "checked": "2026-10-07",
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  },
  "metadata": {
    "specs": {
      "Type": "PNP bipolar transistor",
      "Collector-emitter voltage (VCEO)": "-40 V",
      "Collector current (IC)": "-200 mA",
      "hFE": "100 to 300 at IC = -10 mA",
      "Transition frequency (fT)": "250 MHz",
      "Power dissipation": "350 mW",
      "Operating temperature": "-55 C to 150 C"
    },
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  "sections": [
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  "discovery_triggers": [
    "PNP switch",
    "small-signal PNP",
    "high-side driver",
    "2N3906 SMD"
  ],
  "discovery_pitch": "The surface-mount 2N3906: a 40 V, 200 mA PNP for switching and small-signal amplification, complementing the MMBT3904.",
  "author": {
    "name": "Ray"
  },
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  "variants": [
    {
      "mpn": "MMBT3906-7-F",
      "kind": "unknown"
    },
    {
      "mpn": "MMBT3906-13-F",
      "kind": "unknown"
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}