KRA105S-RTK

{
  "slug": "kra105s-rtk",
  "version": "0.1.0",
  "type": "component",
  "description": "KEC Semicon Digital Transistors, SOT-23. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "transistors-thyristors",
    "kra105s-rtk",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "kra105s-rtk.kicad_sym",
    "kra105s-rtk.kicad_mod",
    "kra105s-rtk.glb",
    "kra105s-rtk.step",
    "kra105s-rtk.lbr",
    "docs/hero.png",
    "docs/kra105s-rtk-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "kra105s-rtk-hero.glb",
    "kra105s-rtk-hero.overlay.json",
    "kra105s-rtk-etched.glb"
  ],
  "component": {
    "mpn": "KRA105S-RTK",
    "manufacturer": "KEC Semicon",
    "package": "SOT-23",
    "pin_count": 3,
    "category": "Transistors/Thyristors",
    "subcategory": "Digital Transistors",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8586180915969576960",
    "parts": {
      "symbol": "kra105s-rtk.kicad_sym",
      "footprint": "kra105s-rtk.kicad_mod",
      "model_3d": "kra105s-rtk-hero.glb",
      "model_3d_plain": "kra105s-rtk-etched.glb",
      "model_3d_step": "kra105s-rtk-etched.step",
      "model_3d_step_plain": "kra105s-rtk.step",
      "lbr": "kra105s-rtk.lbr"
    },
    "distributor_links": {
      "lcsc": "C112788"
    },
    "distributor_check": {
      "checked_at": "2026-10-19T01:17:14Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "no match"
      },
      "mouser": {
        "pn": null,
        "status": "no match"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "COMMON (EMITTER)",
        "type": "passive",
        "description": "Common emitter terminal of the built-in-bias PNP transistor, marked COMMON(+) in the equivalent circuit, with no separate voltage or current limit given for this pin."
      },
      {
        "number": "2",
        "name": "IN (BASE)",
        "type": "input",
        "description": "Base input through the internal input resistor R1 (2.2 kΩ for KRA105S), with a rated input voltage of -12 V to 5 V for this type."
      },
      {
        "number": "3",
        "name": "OUT (COLLECTOR)",
        "type": "output",
        "description": "Collector output with a rated output voltage of -50 V and output current of -100 mA, with device power dissipation of 200 mW."
      }
    ],
    "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 covers the family KRA101S~KRA106S in one document, and the pinout is the same for all ; The emitter is labeled COMMON and is not called GND, so I used passive rather than power_in. Change ; The input voltage limit (-12 V to 5 V) and the input resistor value (2.2 kΩ) are the KRA105S values "
        ],
        "pages_sent": 6,
        "cost_usd": 0.0255,
        "at": "2026-10-19T01:15:09"
      },
      "datasheet": {
        "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8586180915969576960",
        "pages": 6,
        "sha256": "db5b473a62ff76f3",
        "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": "kra105s-rtk.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          2.5,
          3.0,
          1.2
        ],
        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "dd5d1711204e1d8d26cd11490923bd84340820baa69538c385a4300ec2539bc0",
        "checked": "2026-10-19",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "kra105s-rtk-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          2.5,
          3.0,
          1.2
        ],
        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "87f7dc63f94021124b09dd925db22dc6e0f173a2e2f6d0067cdd725549e1339a",
        "checked": "2026-10-19",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}