main
Ray Set visibility: public 4d870f2 16d ago
{
  "schema_version": 1,
  "type": "component",
  "slug": "cj9107a33k",
  "title": "CJ9107A33K",
  "brief": "Changjiang Electronics Tech (CJ) DC-DC Converters, 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": [
    "component",
    "power management ics",
    "cj9107a33k",
    "factory-2.0.0",
    "extractor-text"
  ],
  "component": {
    "mpn": "CJ9107A33K",
    "manufacturer": "Changjiang Electronics Tech (CJ)",
    "package": "SOT-23",
    "pin_count": 3,
    "category": "Power Management ICs",
    "subcategory": "DC-DC Converters",
    "datasheet": "https://datasheet.lcsc.com/datasheet/pdf/ae5b9ac45bd3086f67873839144c9102.pdf",
    "parts": {
      "symbol": "cj9107a33k.kicad_sym",
      "footprint": "cj9107a33k.kicad_mod",
      "model_3d": "cj9107a33k-hero.glb",
      "model_3d_plain": "cj9107a33k-etched.glb",
      "model_3d_step": "cj9107a33k-etched.step",
      "model_3d_step_plain": "cj9107a33k.step",
      "lbr": "cj9107a33k.lbr"
    },
    "distributor_links": {
      "lcsc": "C2829448"
    },
    "distributor_check": {
      "checked_at": "2026-10-23T03:17:46Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "no match"
      },
      "mouser": {
        "pn": null,
        "status": "no match"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "VOUT",
        "type": "power_out",
        "description": "Output voltage pin; the output is set between 2.1V and 5.5V in 0.1V steps (33 = 3.3V) with ±2% accuracy, and the pin is rated VSS-0.3 to VSS+8V."
      },
      {
        "number": "2",
        "name": "VSS",
        "type": "power_in",
        "description": "Ground pin."
      },
      {
        "number": "3",
        "name": "LX",
        "type": "passive",
        "description": "External inductor connection pin (switching node); rated VSS-0.3 to VSS+8V with a maximum LX current of 1000mA."
      }
    ],
    "provenance": {
      "extractor": "extract_pins 0.3",
      "factory_chain": {
        "factory": "2.0.0",
        "extractor": "extract_pins 0.3",
        "primary_model": "claude-sonnet-5-5",
        "primary_mode": "text",
        "consensus_model": "claude-sonnet-5-5",
        "consensus": "agreed",
        "guards": "pin_guards 0.1: passed",
        "guard_notes": [
          "extractor flagged: The MPN CJ9107A33K decodes as A = standard version without shutdown, 33 = 3.3V output, K = SOT-23 pa; Pin types are inferred from the functions. VOUT is classed as power_out, and LX as passive because i"
        ],
        "pages_sent": 10,
        "cost_usd": 0.0476,
        "at": "2026-10-23T03:17:36"
      },
      "datasheet": {
        "url": "https://datasheet.lcsc.com/datasheet/pdf/ae5b9ac45bd3086f67873839144c9102.pdf",
        "pages": 10,
        "sha256": "b3ba88b0eb2e83f1",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 3,
        "described": 3,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
      {
        "file": "cj9107a33k.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          2.5,
          3,
          1.2
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "dd5d1711204e1d8d26cd11490923bd84340820baa69538c385a4300ec2539bc0",
        "checked": "2026-10-23",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "cj9107a33k-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
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          1.2
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        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "64de1e085fec85607eabdd4301468450b09544020a972affd806ce1b8324f3c3",
        "checked": "2026-10-23",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "Changjiang Electronics Tech (CJ)",
      "Package": "SOT-23",
      "Category": "Power Management ICs",
      "Pins": "3"
    },
    "characteristics": {
      "version": 1,
      "source": "datasheet",
      "datasheet_sha256": "b3ba88b0eb2e83f198ea839f25daaef5077463d4076ba7741eb30b80e1dba9a2",
      "rows": [
        {
          "name": "VOUT Pin Voltage",
          "symbol": "VOUT",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": 8,
          "conditions": "VSS-0.3 ~ VSS+8",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "LX Pin Voltage",
          "symbol": "VLX",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": 8,
          "conditions": "VSS-0.3 ~ VSS+8",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "LX Pin Current",
          "symbol": "ILX",
          "kind": "absolute_maximum",
          "unit": "mA",
          "min": null,
          "typ": null,
          "max": 1000,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Power Dissipation SOT-23",
          "symbol": "PD",
          "kind": "absolute_maximum",
          "unit": "mW",
          "min": null,
          "typ": null,
          "max": 250,
          "conditions": "SOT-23",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Operating Temperature",
          "symbol": "Topr",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": -40,
          "typ": null,
          "max": 85,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Storage Temperature",
          "symbol": "Tstg",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": -40,
          "typ": null,
          "max": 125,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Soldering Temperature & Time",
          "symbol": "Tsolder",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": null,
          "typ": null,
          "max": 260,
          "conditions": "10s",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Input Voltage",
          "symbol": "VIN",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 5,
          "conditions": "Ta=25°C",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Operation Start Voltage",
          "symbol": "VST1",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 0.9,
          "conditions": "IOUT=1 mA",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Input Current At No Load",
          "symbol": "ISS",
          "kind": "electrical",
          "unit": "µA",
          "min": null,
          "typ": 15,
          "max": null,
          "conditions": "VIN=1.8V, VOUT=3.0V",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Current Consumption 2",
          "symbol": "ISS2",
          "kind": "electrical",
          "unit": "µA",
          "min": null,
          "typ": 6,
          "max": 10,
          "conditions": "VOUT=VOUT+0.5 V",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Maximum Oscillation Frequency",
          "symbol": "fOSC",
          "kind": "electrical",
          "unit": "KHz",
          "min": null,
          "typ": null,
          "max": 300,
          "conditions": "VOUT=0.95×VOUT, measure waveform at LX pin",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Duty Ratio 1",
          "symbol": "Duty1",
          "kind": "electrical",
          "unit": "%",
          "min": 70,
          "typ": 78,
          "max": 85,
          "conditions": "VOUT=0.95×VOUT, measure waveform at LX pin",
          "source_page": 3,
          "source": "datasheet"
        }
      ]
    }
  },
  "variants": [],
  "sections": [
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    "viewers",
    "readme",
    "breadcrumbs",
    "info"
  ],
  "discovery_triggers": [
    "cj9107a33k"
  ],
  "discovery_pitch": "CJ9107A33K (Changjiang Electronics Tech (CJ)) component page: datasheet pinout, KiCad symbol, footprint and 3D.",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
  },
  "dependencies": {},
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    "path": "docs/hero.png"
  },
  "files": [
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    "cj9107a33k.step",
    "cj9107a33k.lbr",
    "docs/hero.png",
    "docs/cj9107a33k-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "cj9107a33k-hero.glb",
    "cj9107a33k-hero.overlay.json",
    "cj9107a33k-etched.glb"
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  "visibility": {
    "public": true
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}