main
Ray Set visibility: public 1e7d9b1 23d ago
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{
  "schema_version": 1,
  "type": "component",
  "slug": "cmpt4401-tr-pbfree",
  "title": "CMPT4401 TR PBFREE",
  "brief": "Central Semicon Bipolar (BJT), 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",
  "tags": [
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    "transistors-thyristors",
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    "mpn": "CMPT4401 TR PBFREE",
    "manufacturer": "Central Semicon",
    "package": "SOT-23",
    "pin_count": 3,
    "category": "Transistors/Thyristors",
    "subcategory": "Bipolar (BJT)",
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      "lbr": "cmpt4401-tr-pbfree.lbr"
    },
    "distributor_links": {
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    "distributor_check": {
      "checked_at": "2026-10-17T19:55:00Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
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        "status": "quota"
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      "mouser": {
        "pn": null,
        "status": "quota"
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    },
    "pins": [
      {
        "number": "1",
        "name": "Base",
        "type": "passive",
        "description": "Base terminal of the CMPT4401 NPN transistor, with emitter-base voltage rated at VEBO 6.0 V maximum and base drive of IB 15 mA in the 150 mA saturation test condition."
      },
      {
        "number": "2",
        "name": "Emitter",
        "type": "passive",
        "description": "Emitter terminal of the CMPT4401 NPN transistor, with emitter-base breakdown BVEBO of 6.0 V minimum at IE = 100 µA."
      },
      {
        "number": "3",
        "name": "Collector",
        "type": "passive",
        "description": "Collector terminal of the CMPT4401 NPN transistor, rated for collector-emitter voltage VCEO 40 V and continuous collector current IC 600 mA."
      }
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        "primary_model": "claude-haiku-5-5",
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        "consensus_model": "claude-sonnet-5-5",
        "consensus": "agreed",
        "guards": "pin_guards 0.1: passed",
        "guard_notes": [
          "extractor flagged: The MPN suffix 'TR' (tape and reel) is not defined in the datasheet. The datasheet only defines the ; The datasheet lists pin functions only as LEAD CODE: 1) Base 2) Emitter 3) Collector. It does not gi; The datasheet covers both the NPN CMPT4401 and the PNP CMPT4403 with the same SOT-23 lead code. The "
        ],
        "pages_sent": 3,
        "cost_usd": 0.0273,
        "at": "2026-10-17T19:52:17"
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      "datasheet": {
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        "pages": 3,
        "sha256": "affd445cef2259eb",
        "source_tier": "lcsc"
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      "cad": "KiCad official (CC-BY-SA 4.0)",
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      "Package": "SOT-23",
      "Category": "Transistors/Thyristors",
      "Pins": "3"
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      "contacts": {
        "quote": "1. If requesting Tin/Lead plated devices, add the suffix “ TIN/LEAD” to the part number when ordering (example: 2N2222A TIN/LEAD).",
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        "doc": "ds.pdf",
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          "name": "Transition Frequency",
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        {
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        {
          "name": "Base Cutoff Current",
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        {
          "name": "Small-Signal Input Impedance",
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          "name": "Delay Time",
          "symbol": "td",
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          "name": "Rise Time",
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          "name": "Storage Time",
          "symbol": "ts",
          "kind": "timing",
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          "name": "Fall Time",
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        {
          "name": "Collector-Base Voltage",
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          "kind": "absolute_maximum",
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        {
          "name": "Operating and Storage Junction Temperature",
          "symbol": "TJ, Tstg",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": -65,
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        {
          "name": "Thermal Resistance, Junction to Ambient",
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          "kind": "thermal",
          "unit": "°C/W",
          "min": null,
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  "author": {
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