BFP 181 E7764

{
  "slug": "bfp-181-e7764",
  "version": "0.1.0",
  "type": "component",
  "description": "Infineon Technologies Bipolar (BJT), SOT-143. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
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    "transistors-thyristors",
    "bfp 181 e7764",
    "factory-2.0.0",
    "extractor-text"
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  "dependencies": {},
  "hero": {
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    "path": "docs/hero.png"
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    "bfp-181-e7764.step",
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    "viewers/footprint.html",
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    "bfp-181-e7764-etched.glb"
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  "component": {
    "mpn": "BFP 181 E7764",
    "manufacturer": "Infineon Technologies",
    "package": "SOT-143",
    "pin_count": 4,
    "category": "Transistors/Thyristors",
    "subcategory": "Bipolar (BJT)",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588912285842878464",
    "parts": {
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      "lbr": "bfp-181-e7764.lbr"
    },
    "distributor_links": {
      "lcsc": "C534074",
      "mouser": "726-BFP181E7764"
    },
    "distributor_check": {
      "checked_at": "2026-10-21T02:09:58Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "no match"
      },
      "mouser": {
        "pn": "726-BFP181E7764",
        "status": "found",
        "lifecycle": "End of Life"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "C",
        "type": "passive",
        "description": "Collector of the NPN RF transistor; the datasheet gives maximum collector-emitter voltage VCEO 12 V and collector current IC 20 mA, and Ts is measured on this lead at the solder point."
      },
      {
        "number": "2",
        "name": "E",
        "type": "passive",
        "description": "Emitter of the transistor, connected to the package emitter terminal; the datasheet specifies no separate pin-level limit for this lead."
      },
      {
        "number": "3",
        "name": "B",
        "type": "input",
        "description": "Base of the transistor; the datasheet gives maximum base current IB 2 mA and emitter-base voltage VEBO 2 V."
      },
      {
        "number": "4",
        "name": "E",
        "type": "passive",
        "description": "Second emitter terminal, internally common with pin 2; the datasheet specifies no separate pin-level limit for this lead."
      }
    ],
    "provenance": {
      "extractor": "extract_pins 0.3",
      "factory_chain": {
        "factory": "2.0.0",
        "extractor": "extract_pins 0.3",
        "primary_model": "claude-haiku-5-5",
        "primary_mode": "text",
        "consensus_model": "claude-sonnet-5-5",
        "consensus": "agreed",
        "guards": "pin_guards 0.1: passed",
        "guard_notes": [
          "extractor flagged: The SOT143 package drawing on page 5 is image-only; no pin geometry or numbering orientation is give; The ordering suffix E7764 in the MPN is not explained in the datasheet text, so the specific tape/re; The datasheet does not state the internal connection of pins 2 and 4; both are labeled E. Their comm"
        ],
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        "cost_usd": 0.0184,
        "at": "2026-10-21T02:06:46"
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        "pages": 6,
        "sha256": "d182b32a72d77154",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 4,
        "described": 4,
        "cites_pages": true,
        "refuses_to_fabricate": true
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    },
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        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "b35b433c0dc71ac416a9c731e744d2e0610f82ebe97275830f0e17cdcbe44512",
        "checked": "2026-10-21",
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      },
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}