DTA143EKAT146

{
  "slug": "dta143ekat146",
  "version": "0.1.0",
  "type": "component",
  "description": "ROHM Semicon Bipolar Transistors - BJT, TO-236-3(SOT-23-3). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
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    "transistors",
    "dta143ekat146",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "dta143ekat146.kicad_sym",
    "dta143ekat146.kicad_mod",
    "dta143ekat146.glb",
    "dta143ekat146.step",
    "dta143ekat146.lbr",
    "docs/hero.png",
    "docs/dta143ekat146-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "dta143ekat146-hero.glb",
    "dta143ekat146-hero.overlay.json",
    "dta143ekat146-etched.glb"
  ],
  "component": {
    "mpn": "DTA143EKAT146",
    "manufacturer": "ROHM Semicon",
    "package": "TO-236-3(SOT-23-3)",
    "pin_count": 3,
    "category": "Transistors",
    "subcategory": "Bipolar Transistors - BJT",
    "datasheet": "https://datasheet.lcsc.com/datasheet/pdf/18f9f23ac591997ee1ba82cb8c7a7aee.pdf",
    "parts": {
      "symbol": "dta143ekat146.kicad_sym",
      "footprint": "dta143ekat146.kicad_mod",
      "model_3d": "dta143ekat146-hero.glb",
      "model_3d_plain": "dta143ekat146-etched.glb",
      "model_3d_step": "dta143ekat146-etched.step",
      "model_3d_step_plain": "dta143ekat146.step",
      "lbr": "dta143ekat146.lbr"
    },
    "distributor_links": {
      "lcsc": "C308678"
    },
    "distributor_check": {
      "checked_at": "2026-10-21T13:38:25Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "quota"
      },
      "mouser": {
        "pn": null,
        "status": "quota"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "GND",
        "type": "power_in",
        "description": "GND (+) (EMITTER) of the built-in PNP transistor; the R2 bias resistor (4.7kΩ) is connected between base and this pin."
      },
      {
        "number": "2",
        "name": "IN",
        "type": "input",
        "description": "IN (BASE) input through built-in R1 = 4.7kΩ; input voltage range is -30 to 10 V, with VI(off) max -0.5 V and VI(on) min -3.0 V."
      },
      {
        "number": "3",
        "name": "OUT",
        "type": "output",
        "description": "OUT (COLLECTOR) output; output current up to -100 mA and supply voltage VCC of -50 V."
      }
    ],
    "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+vision",
        "consensus_model": "claude-opus-5-5",
        "consensus": "agreed",
        "guards": "pin_guards 0.1: passed",
        "guard_notes": [
          "extractor flagged: Pin assignment is taken from the inner-circuit pin list on page 1, which is shared by DTA143EE/EUA/E",
          "vision extraction: provenance cannot be text-verified; needs consensus"
        ],
        "pages_sent": 12,
        "cost_usd": 0.1658,
        "at": "2026-10-21T13:34:17"
      },
      "datasheet": {
        "url": "https://datasheet.lcsc.com/datasheet/pdf/18f9f23ac591997ee1ba82cb8c7a7aee.pdf",
        "pages": 12,
        "sha256": "cfea34567024e426",
        "source_tier": "mfr"
      },
      "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": [
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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": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "dd5d1711204e1d8d26cd11490923bd84340820baa69538c385a4300ec2539bc0",
        "checked": "2026-10-21",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
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        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
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      }
    ]
  }
}