KRC243S-RTK

{
  "slug": "krc243s-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",
    "krc243s-rtk",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "krc243s-rtk.kicad_sym",
    "krc243s-rtk.kicad_mod",
    "krc243s-rtk.glb",
    "krc243s-rtk.step",
    "krc243s-rtk.lbr",
    "docs/hero.png",
    "docs/krc243s-rtk-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "krc243s-rtk-hero.glb",
    "krc243s-rtk-hero.overlay.json"
  ],
  "component": {
    "mpn": "KRC243S-RTK",
    "manufacturer": "KEC Semicon",
    "package": "SOT-23",
    "pin_count": 3,
    "category": "Transistors/Thyristors",
    "subcategory": "Digital Transistors",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8586182782364499968",
    "parts": {
      "symbol": "krc243s-rtk.kicad_sym",
      "footprint": "krc243s-rtk.kicad_mod",
      "model_3d": "krc243s-rtk-hero.glb",
      "model_3d_plain": "krc243s-rtk.glb",
      "model_3d_step": "krc243s-rtk-etched.step",
      "model_3d_step_plain": "krc243s-rtk.step",
      "lbr": "krc243s-rtk.lbr"
    },
    "distributor_links": {
      "lcsc": "C125286"
    },
    "distributor_check": {
      "checked_at": "2026-10-09T17:20:09Z",
      "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 NPN transistor, shared by the internal bias resistor network; the datasheet gives no separate voltage or current limit for this pin."
      },
      {
        "number": "2",
        "name": "IN (BASE)",
        "type": "input",
        "description": "Base input, connected to the internal input resistor R1 (4.7 kΩ typical for KRC243S); the input voltage rating is 20 V / −10 V and the input current is at most 1.8 mA at VI = 5 V."
      },
      {
        "number": "3",
        "name": "OUT (COLLECTOR)",
        "type": "output",
        "description": "Collector output with a rating of 50 V output voltage and 800 mA maximum output current; output cut-off current is at most 10 µA at VO = 30 V with VI = 0."
      }
    ],
    "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 KRC241S~KRC246S and does not mention the suffix '-RTK' or give a sep; Pin 1 type is an assumption: the datasheet labels it 'COMMON (EMITTER)' without an ERC class, so 'pa; The datasheet gives the pin 1-3 functions in the page 1 pin legend but no per-pin limits beyond the "
        ],
        "pages_sent": 5,
        "cost_usd": 0.0337,
        "at": "2026-10-09T17:18:07"
      },
      "datasheet": {
        "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8586182782364499968",
        "pages": 5,
        "sha256": "43f104429e34af23",
        "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": "krc243s-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": "2026-10-09",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "krc243s-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": "375ad0c428b05d189adecb485e93b05181e109971567431592996ec722e3b2cf",
        "checked": "2026-10-09",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}