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Ray Set visibility: public 6ad6af0 17d ago
{
  "schema_version": 1,
  "type": "component",
  "slug": "emh9",
  "title": "EMH9",
  "brief": "Changjing Digital Transistors, SOT-563. 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-thyristors",
    "emh9",
    "factory-2.0.0",
    "extractor-text"
  ],
  "component": {
    "mpn": "EMH9",
    "manufacturer": "Changjing",
    "package": "SOT-563",
    "pin_count": 6,
    "category": "Transistors/Thyristors",
    "subcategory": "Digital Transistors",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8590239418138058752",
    "parts": {
      "symbol": "emh9.kicad_sym",
      "footprint": "emh9.kicad_mod",
      "model_3d": "emh9-hero.glb",
      "model_3d_plain": "emh9-etched.glb",
      "model_3d_step": "emh9-etched.step",
      "model_3d_step_plain": "emh9.step",
      "lbr": "emh9.lbr"
    },
    "distributor_links": {
      "lcsc": "C2910276"
    },
    "distributor_check": {
      "checked_at": "2026-10-18T03:29:53Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "no match"
      },
      "mouser": {
        "pn": null,
        "status": "no match"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "E1",
        "type": "passive",
        "description": "Emitter (ground) of transistor Tr1, per the SOT-563 pin diagram on page 1."
      },
      {
        "number": "2",
        "name": "B1",
        "type": "input",
        "description": "Input (base through built-in R1 of about 10 kΩ) of Tr1; input voltage range -6 to 40 V, VI(off) min 0.3 V, VI(on) max 1.4 V."
      },
      {
        "number": "3",
        "name": "C2",
        "type": "output",
        "description": "Collector (output) of transistor Tr2; supply voltage max 50 V, output current IO 70 mA (IC(MAX) 100 mA)."
      },
      {
        "number": "4",
        "name": "E2",
        "type": "passive",
        "description": "Emitter (ground) of transistor Tr2, per the SOT-563 pin diagram on page 1."
      },
      {
        "number": "5",
        "name": "B2",
        "type": "input",
        "description": "Input (base through built-in R1 of about 10 kΩ) of Tr2; input voltage range -6 to 40 V, VI(off) min 0.3 V, VI(on) max 1.4 V."
      },
      {
        "number": "6",
        "name": "C1",
        "type": "output",
        "description": "Collector (output) of transistor Tr1; supply voltage max 50 V, output current IO 70 mA (IC(MAX) 100 mA)."
      }
    ],
    "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: The datasheet draws the schematic with pin numbers but gives no pin-name table. I inferred the pin n",
          "vision extraction: provenance cannot be text-verified; needs consensus"
        ],
        "pages_sent": 4,
        "cost_usd": 0.2126,
        "at": "2026-10-18T03:27:56"
      },
      "datasheet": {
        "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8590239418138058752",
        "pages": 4,
        "sha256": "a9e4d04d6700e132",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 6,
        "described": 6,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
      {
        "file": "emh9.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          1.6,
          1.6,
          0.63
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "76c34aa4905777c0a8abe4718019904a3a9f8343cab7cc056f4516b7ef5165fc",
        "checked": "2026-10-18",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "emh9-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          1.6,
          1.6,
          0.63
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "15418bd6c46e2be3596053a1f10bcb4df82f5e067ec91ece73bdf275e5acfd9b",
        "checked": "2026-10-18",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "Changjing",
      "Package": "SOT-563",
      "Category": "Transistors/Thyristors",
      "Pins": "6"
    },
    "characteristics": {
      "version": 1,
      "source": "datasheet",
      "datasheet_sha256": "a9e4d04d6700e132b08efd65c43e58f211a43f2097a6e9a72c74cbe5dcb99571",
      "rows": [
        {
          "name": "Supply voltage",
          "symbol": "VCC",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 50,
          "conditions": "",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Input voltage",
          "symbol": "VIN",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -6,
          "typ": null,
          "max": 40,
          "conditions": "",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Output current",
          "symbol": "IO",
          "kind": "absolute_maximum",
          "unit": "mA",
          "min": null,
          "typ": null,
          "max": 70,
          "conditions": "",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Output current (maximum)",
          "symbol": "IC(MAX)",
          "kind": "absolute_maximum",
          "unit": "mA",
          "min": null,
          "typ": null,
          "max": 100,
          "conditions": "",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Power dissipation",
          "symbol": "Pd",
          "kind": "absolute_maximum",
          "unit": "mW",
          "min": null,
          "typ": null,
          "max": 150,
          "conditions": "TOTAL",
          "source_page": 1,
          "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": 1,
          "source": "datasheet"
        },
        {
          "name": "Input voltage (off)",
          "symbol": "VI(off)",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 0.3,
          "conditions": "VCC=5V, IO=100µA",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Input voltage (on)",
          "symbol": "VI(on)",
          "kind": "electrical",
          "unit": "V",
          "min": 1.4,
          "typ": null,
          "max": null,
          "conditions": "VO=0.3V, IO=1 mA",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Output voltage (on)",
          "symbol": "VO(on)",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 0.3,
          "conditions": "IO/II=5mA/0.25mA",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Input current",
          "symbol": "II",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": null,
          "max": 0.88,
          "conditions": "VI=5V",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Output current (off)",
          "symbol": "IO(off)",
          "kind": "electrical",
          "unit": "μA",
          "min": null,
          "typ": null,
          "max": 0.5,
          "conditions": "VCC=50V, VI=0",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "DC current gain",
          "symbol": "GI",
          "kind": "electrical",
          "unit": "",
          "min": 68,
          "typ": null,
          "max": null,
          "conditions": "VO=5V, IO=5mA",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Input resistance",
          "symbol": "R1",
          "kind": "electrical",
          "unit": "KΩ",
          "min": 7,
          "typ": 10,
          "max": 13,
          "conditions": "",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Resistance ratio",
          "symbol": "R2/R1",
          "kind": "electrical",
          "unit": "",
          "min": 3.7,
          "typ": 4.7,
          "max": 5.7,
          "conditions": "",
          "source_page": 1,
          "source": "datasheet"
        }
      ]
    }
  },
  "variants": [],
  "sections": [
    "hero",
    "viewers",
    "readme",
    "breadcrumbs",
    "info"
  ],
  "discovery_triggers": [
    "emh9"
  ],
  "discovery_pitch": "EMH9 (Changjing) component page: datasheet pinout, KiCad symbol, footprint and 3D.",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
  },
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "emh9.kicad_sym",
    "emh9.kicad_mod",
    "emh9.glb",
    "emh9.step",
    "emh9.lbr",
    "docs/hero.png",
    "docs/emh9-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "emh9-hero.glb",
    "emh9-hero.overlay.json",
    "emh9-etched.glb"
  ],
  "visibility": {
    "public": true
  }
}