main
Ray Set visibility: public 2a70319
{
  "schema_version": 1,
  "type": "component",
  "slug": "dta124eca",
  "title": "DTA124ECA",
  "brief": "Changjiang Electronics Tech (CJ) Digital Transistors, 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",
    "transistors",
    "dta124eca",
    "factory-2.0.0",
    "extractor-text"
  ],
  "component": {
    "mpn": "DTA124ECA",
    "manufacturer": "Changjiang Electronics Tech (CJ)",
    "package": "SOT-23",
    "pin_count": 3,
    "category": "Transistors",
    "subcategory": "Digital Transistors",
    "datasheet": "https://datasheet.lcsc.com/datasheet/pdf/a80ac8be4ccf85c63237ea7ed9f37345.pdf",
    "parts": {
      "symbol": "dta124eca.kicad_sym",
      "footprint": "dta124eca.kicad_mod",
      "model_3d": "dta124eca-hero.glb",
      "model_3d_plain": "dta124eca.glb",
      "model_3d_step": "dta124eca-etched.step",
      "model_3d_step_plain": "dta124eca.step",
      "lbr": "dta124eca.lbr"
    },
    "distributor_links": {
      "lcsc": "C2910192"
    },
    "distributor_check": {
      "checked_at": "2026-11-13T06:35:48Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "no match"
      },
      "mouser": {
        "pn": null,
        "status": "no match"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "IN",
        "type": "input",
        "description": "Input pin of the built-in bias-resistor inverter, with the input voltage limited to -40 V to +10 V (VIN) and VI(off) at most -0.5 V when VCC=-5 V and IO=-100 µA."
      },
      {
        "number": "2",
        "name": "GND",
        "type": "power_in",
        "description": "Ground pin as labeled in the datasheet pin connection; the datasheet states no separate electrical limits for this pin."
      },
      {
        "number": "3",
        "name": "OUT",
        "type": "output",
        "description": "Output pin with output current limited to -30 mA (IO) and an output voltage VO(on) of at most -0.3 V at IO/II = -10 mA/-0.5 mA."
      }
    ],
    "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 datasheet labels pin 2 as GND for the DTA124ECA SOT-23 variant but gives no electrical limits or; Maximum ratings (VCC -50 V, VIN -40 to +10 V, IO -30 mA, ICM -100 mA) and the pinout are shared acro"
        ],
        "pages_sent": 15,
        "cost_usd": 0.0295,
        "at": "2026-11-13T06:35:41"
      },
      "datasheet": {
        "url": "https://datasheet.lcsc.com/datasheet/pdf/a80ac8be4ccf85c63237ea7ed9f37345.pdf",
        "pages": 15,
        "sha256": "f00cf23dd89e1acd",
        "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": "dta124eca.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": "2026-11-13",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "dta124eca-etched.step",
        "role": "eda",
        "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": "16170392f41c813eeb9032e38ab9e986384d36d5a8cd79f52dfb6710c8c84621",
        "checked": "2026-11-13",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ],
    "package_dims": {
      "package_code": "SOT-23",
      "source_page": 12,
      "D": {
        "nom_mm": 2.9,
        "range_mm": [
          2.8,
          3
        ]
      },
      "E1": {
        "nom_mm": 1.3,
        "range_mm": [
          1.2,
          1.4
        ]
      },
      "E": {
        "nom_mm": 2.4,
        "range_mm": [
          2.25,
          2.55
        ]
      },
      "e": {
        "nom_mm": 0.95,
        "range_mm": [
          null,
          null
        ]
      },
      "A": {
        "nom_mm": 1.025,
        "range_mm": [
          0.9,
          1.15
        ]
      },
      "source": "datasheet package drawing, every number found on its page (extract_pins --task dims)",
      "model_check": {
        "file": "dta124eca.step",
        "verdict": "PASS",
        "reasons": [
          "height and body within the datasheet's package drawing"
        ],
        "by": "factory/package_fit.py"
      }
    }
  },
  "metadata": {
    "specs": {
      "Manufacturer": "Changjiang Electronics Tech (CJ)",
      "Package": "SOT-23",
      "Category": "Transistors",
      "Pins": "3"
    },
    "characteristics": {
      "version": 1,
      "source": "datasheet",
      "datasheet_sha256": "f00cf23dd89e1acdce64d6c43b0dbb7aff9079d8ed496ca13b492b508572a6f1",
      "rows": [
        {
          "name": "Input voltage (off)",
          "symbol": "VI(off)",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": -0.5,
          "conditions": "VCC=-5V,IO=-100µA",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Input voltage (on)",
          "symbol": "VI(on)",
          "kind": "electrical",
          "unit": "V",
          "min": -3,
          "typ": null,
          "max": null,
          "conditions": "VO=-0.2V,IO=-5 mA",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Output voltage",
          "symbol": "VO(on)",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": -0.3,
          "conditions": "IO/II=-10mA/-0.5mA",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Input current",
          "symbol": "II",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": null,
          "max": -0.36,
          "conditions": "VI=-5V",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Output current",
          "symbol": "IO(off)",
          "kind": "electrical",
          "unit": "μA",
          "min": null,
          "typ": null,
          "max": -0.5,
          "conditions": "VCC=-50V,VI=0",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "DC current gain",
          "symbol": "GI",
          "kind": "electrical",
          "unit": "",
          "min": 56,
          "typ": null,
          "max": null,
          "conditions": "VO=-5V,IO=-5mA",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Input resistance",
          "symbol": "R1",
          "kind": "electrical",
          "unit": "kΩ",
          "min": 15.4,
          "typ": 22,
          "max": 28.6,
          "conditions": "",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Resistance ratio",
          "symbol": "R2/R1",
          "kind": "electrical",
          "unit": "",
          "min": 0.8,
          "typ": 1,
          "max": 1.2,
          "conditions": "",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Supply voltage",
          "symbol": "VCC",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -50,
          "typ": null,
          "max": null,
          "conditions": "Ta=25℃",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Input voltage",
          "symbol": "VIN",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -40,
          "typ": null,
          "max": 10,
          "conditions": "Ta=25℃",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Output current",
          "symbol": "IO",
          "kind": "absolute_maximum",
          "unit": "mA",
          "min": -30,
          "typ": null,
          "max": null,
          "conditions": "Ta=25℃",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Peak collector current",
          "symbol": "ICM",
          "kind": "absolute_maximum",
          "unit": "mA",
          "min": -100,
          "typ": null,
          "max": null,
          "conditions": "Ta=25℃",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Power dissipation",
          "symbol": "PD",
          "kind": "absolute_maximum",
          "unit": "mW",
          "min": null,
          "typ": null,
          "max": 200,
          "conditions": "Ta=25℃, CA column",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Operation junction and storage temperature range",
          "symbol": "TJ,Tstg",
          "kind": "absolute_maximum",
          "unit": "℃",
          "min": -55,
          "typ": null,
          "max": 150,
          "conditions": "",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Transition frequency",
          "symbol": "fT",
          "kind": "electrical",
          "unit": "MHz",
          "min": null,
          "typ": 250,
          "max": null,
          "conditions": "VO=-10V,IO=-5mA,f=100MHz",
          "source_page": 2,
          "source": "datasheet"
        }
      ]
    }
  },
  "variants": [],
  "sections": [
    "hero",
    "viewers",
    "readme",
    "breadcrumbs",
    "info"
  ],
  "discovery_triggers": [
    "dta124eca"
  ],
  "discovery_pitch": "DTA124ECA (Changjiang Electronics Tech (CJ)) component page: datasheet pinout, KiCad symbol, footprint and 3D.",
  "author": {
    "name": "Ray"
  },
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "dta124eca.kicad_sym",
    "dta124eca.kicad_mod",
    "dta124eca.glb",
    "dta124eca.step",
    "dta124eca.lbr",
    "docs/hero.png",
    "docs/dta124eca-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "dta124eca-hero.glb",
    "dta124eca-hero.overlay.json"
  ],
  "visibility": {
    "public": true
  }
}