main
Ray Set visibility: public b4bb903 17d ago
{
  "schema_version": 1,
  "type": "component",
  "slug": "cmpta42e-tr-pbfree",
  "title": "CMPTA42E 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",
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    "mpn": "CMPTA42E TR PBFREE",
    "manufacturer": "Central Semicon",
    "package": "SOT-23",
    "pin_count": 3,
    "category": "Transistors/Thyristors",
    "subcategory": "Bipolar (BJT)",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8600504653503078400",
    "parts": {
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      "lbr": "cmpta42e-tr-pbfree.lbr"
    },
    "distributor_links": {
      "lcsc": "C6535495",
      "digikey": "1514-CMPTA42ETRPBFREETR-ND",
      "mouser": "610-CMPTA42E"
    },
    "distributor_check": {
      "checked_at": "2026-10-18T02:20:31Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "1514-CMPTA42ETRPBFREETR-ND",
        "status": "found",
        "lifecycle": "Active"
      },
      "mouser": {
        "pn": "610-CMPTA42E",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "Base",
        "type": "input",
        "description": "Base terminal of the CMPTA42E NPN transistor (CMPTA92E PNP complement); the datasheet gives the emitter-base maximum rating VEBO of 6.0 V."
      },
      {
        "number": "2",
        "name": "Emitter",
        "type": "passive",
        "description": "Emitter terminal; the emitter-base voltage is limited to 6.0 V (VEBO) and continuous collector current to 500 mA."
      },
      {
        "number": "3",
        "name": "Collector",
        "type": "passive",
        "description": "Collector terminal; the datasheet rates VCBO and VCEO at 350 V and continuous collector current IC at 500 mA."
      }
    ],
    "provenance": {
      "extractor": "extract_pins 0.3",
      "factory_chain": {
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        "primary_model": "claude-haiku-5-5",
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        "guard_notes": [
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        "pages_sent": 3,
        "cost_usd": 0.0233,
        "at": "2026-10-18T02:18:30"
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      "datasheet": {
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        "pages": 3,
        "sha256": "7fd35caeb6eb11a9",
        "source_tier": "lcsc"
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      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 3,
        "described": 3,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
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      "footprint": "viewers/footprint.html"
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        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
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        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
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        "checked": "2026-10-18",
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      {
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        "checked": "2026-10-18",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
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  "metadata": {
    "specs": {
      "Manufacturer": "Central Semicon",
      "Package": "SOT-23",
      "Category": "Transistors/Thyristors",
      "Pins": "3"
    },
    "appearance": {
      "contacts": {
        "quote": "1. If requesting Tin/Lead plated devices, add the suffix “ TIN/LEAD” to the part number when ordering (example: 2N2222A TIN/LEAD).",
        "page": 3,
        "doc": "ds.pdf",
        "plating": "tin"
      },
      "version": 1,
      "datasheet_sha256": "7fd35caeb6eb11a96ceb1568da639e04c886636fda6cec772592fa9009fa5269"
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    "characteristics": {
      "version": 1,
      "source": "datasheet",
      "datasheet_sha256": "7fd35caeb6eb11a96ceb1568da639e04c886636fda6cec772592fa9009fa5269",
      "rows": [
        {
          "name": "Collector cutoff current",
          "symbol": "ICBO",
          "kind": "electrical",
          "unit": "nA",
          "min": null,
          "typ": null,
          "max": 250,
          "conditions": "VCB=200V",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Emitter cutoff current",
          "symbol": "IEBO",
          "kind": "electrical",
          "unit": "nA",
          "min": null,
          "typ": null,
          "max": 100,
          "conditions": "VEB=3.0V",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Collector-base breakdown voltage",
          "symbol": "BVCBO",
          "kind": "electrical",
          "unit": "V",
          "min": 350,
          "typ": 590,
          "max": null,
          "conditions": "IC=100µA",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Collector-emitter breakdown voltage",
          "symbol": "BVCEO",
          "kind": "electrical",
          "unit": "V",
          "min": 350,
          "typ": 475,
          "max": null,
          "conditions": "IC=1.0mA",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Emitter-base breakdown voltage",
          "symbol": "BVEBO",
          "kind": "electrical",
          "unit": "V",
          "min": 6,
          "typ": 8.7,
          "max": null,
          "conditions": "IE=100µA",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Collector-emitter saturation voltage",
          "symbol": "VCE(SAT)",
          "kind": "electrical",
          "unit": "mV",
          "min": null,
          "typ": 125,
          "max": 350,
          "conditions": "IC=50mA, IB=5.0mA",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Base-emitter saturation voltage",
          "symbol": "VBE(SAT)",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 0.9,
          "conditions": "IC=20mA, IB=2.0mA",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "DC current gain",
          "symbol": "hFE",
          "kind": "electrical",
          "unit": "",
          "min": 50,
          "typ": 110,
          "max": null,
          "conditions": "VCE=10V, IC=1.0mA",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Transition frequency",
          "symbol": "fT",
          "kind": "electrical",
          "unit": "MHz",
          "min": 50,
          "typ": 75,
          "max": null,
          "conditions": "VCE=20V, IC=10mA, f=100MHz",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Output capacitance",
          "symbol": "Cob",
          "kind": "electrical",
          "unit": "pF",
          "min": null,
          "typ": null,
          "max": 6,
          "conditions": "VCB=20V, IE=0, f=1.0MHz",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Collector-base voltage",
          "symbol": "VCBO",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 350,
          "conditions": "TA=25°C",
          "source_page": 1,
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        },
        {
          "name": "Collector-emitter voltage",
          "symbol": "VCEO",
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          "unit": "V",
          "min": null,
          "typ": null,
          "max": 350,
          "conditions": "TA=25°C",
          "source_page": 1,
          "source": "datasheet"
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        {
          "name": "Emitter-base voltage",
          "symbol": "VEBO",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 6,
          "conditions": "TA=25°C",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Continuous collector current",
          "symbol": "IC",
          "kind": "absolute_maximum",
          "unit": "mA",
          "min": null,
          "typ": null,
          "max": 500,
          "conditions": "TA=25°C",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Power dissipation",
          "symbol": "PD",
          "kind": "absolute_maximum",
          "unit": "mW",
          "min": null,
          "typ": null,
          "max": 350,
          "conditions": "TA=25°C",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Operating and storage junction temperature",
          "symbol": "TJ, Tstg",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": -65,
          "typ": null,
          "max": 150,
          "conditions": "",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Thermal resistance, junction to ambient",
          "symbol": "ΘJA",
          "kind": "thermal",
          "unit": "°C/W",
          "min": null,
          "typ": null,
          "max": 357,
          "conditions": "",
          "source_page": 1,
          "source": "datasheet"
        }
      ]
    }
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  "discovery_pitch": "CMPTA42E TR PBFREE (Central Semicon) component page: datasheet pinout, KiCad symbol, footprint and 3D.",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
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