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Ray Set visibility: public c769546 5h ago
{
  "schema_version": 1,
  "type": "component",
  "slug": "uma3n",
  "title": "UMA3N",
  "brief": "Changjing Digital Transistors, SOT-353. 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",
    "uma3n",
    "factory-2.0.0",
    "extractor-text"
  ],
  "component": {
    "mpn": "UMA3N",
    "manufacturer": "Changjing",
    "package": "SOT-353",
    "pin_count": 5,
    "category": "Transistors/Thyristors",
    "subcategory": "Digital Transistors",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8590931050904436736",
    "parts": {
      "symbol": "uma3n.kicad_sym",
      "footprint": "uma3n.kicad_mod",
      "model_3d": "uma3n-hero.glb",
      "model_3d_plain": "uma3n-etched.glb",
      "model_3d_step": "uma3n-etched.step",
      "model_3d_step_plain": "uma3n.step",
      "lbr": "uma3n.lbr"
    },
    "distributor_links": {
      "lcsc": "C19269072"
    },
    "distributor_check": {
      "checked_at": "2026-10-17T15:35:01Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "quota"
      },
      "mouser": {
        "pn": null,
        "status": "quota"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "B1",
        "type": "input",
        "description": "Base of the first PNP transistor, entering through its built-in input resistor R1 (4.7 kΩ typ, 3.29-6.11 kΩ); VEBO limit is -5 V."
      },
      {
        "number": "2",
        "name": "E",
        "type": "passive",
        "description": "Emitter pin shared by both PNP transistors (common emitter connection in the pinout diagram)."
      },
      {
        "number": "3",
        "name": "B2",
        "type": "input",
        "description": "Base of the second PNP transistor, entering through its built-in input resistor R1 (4.7 kΩ typ, 3.29-6.11 kΩ); VEBO limit is -5 V."
      },
      {
        "number": "4",
        "name": "C2",
        "type": "passive",
        "description": "Collector of the second PNP transistor, rated VCEO -50 V and IC -100 mA continuous."
      },
      {
        "number": "5",
        "name": "C1",
        "type": "passive",
        "description": "Collector of the first PNP transistor, rated VCEO -50 V and IC -100 mA continuous."
      }
    ],
    "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 gives no pin name table. Functions were read from the internal schematic on page 1. Pi",
          "vision extraction: provenance cannot be text-verified; needs consensus"
        ],
        "pages_sent": 4,
        "cost_usd": 0.2002,
        "at": "2026-10-17T15:32:42"
      },
      "datasheet": {
        "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8590931050904436736",
        "pages": 4,
        "sha256": "c99faf26adc14245",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 5,
        "described": 5,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
      {
        "file": "uma3n.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          2.1,
          2,
          1.1
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "2860de5b7b085919ff6e952148353f928798588d9f544dc69430545aff2ba908",
        "checked": "2026-10-17",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "uma3n-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          2.1,
          2,
          1.1
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "b2d240ffdac326ea0e8eda792b05adea73794682dfb75800f953299c1d02c40d",
        "checked": "2026-10-17",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "Changjing",
      "Package": "SOT-353",
      "Category": "Transistors/Thyristors",
      "Pins": "5"
    },
    "characteristics": {
      "version": 1,
      "source": "datasheet",
      "datasheet_sha256": "c99faf26adc14245ce060345dcd71f0fc8adf18f9cf0ba84c4adf10b6205a1da",
      "rows": [
        {
          "name": "Input resistor",
          "symbol": "R1",
          "kind": "electrical",
          "unit": "KΩ",
          "min": 3.29,
          "typ": 4.7,
          "max": 6.11,
          "conditions": "",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Collector-base breakdown voltage",
          "symbol": "V(BR)CBO",
          "kind": "electrical",
          "unit": "V",
          "min": -50,
          "typ": null,
          "max": null,
          "conditions": "IC=-50μA,IE=0",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Collector-emitter breakdown voltage",
          "symbol": "V(BR)CEO",
          "kind": "electrical",
          "unit": "V",
          "min": -50,
          "typ": null,
          "max": null,
          "conditions": "IC=-1mA,IB=0",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Emitter-base breakdown voltage",
          "symbol": "V(BR)EBO",
          "kind": "electrical",
          "unit": "V",
          "min": -5,
          "typ": null,
          "max": null,
          "conditions": "IE=-50μA,IC=0",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Collector cut-off current",
          "symbol": "ICBO",
          "kind": "electrical",
          "unit": "μA",
          "min": null,
          "typ": null,
          "max": -0.5,
          "conditions": "VCB=-50V,IE=0",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Emitter cut-off current",
          "symbol": "IEBO",
          "kind": "electrical",
          "unit": "μA",
          "min": null,
          "typ": null,
          "max": 0.5,
          "conditions": "VEB=4V,IC=0",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "DC current gain",
          "symbol": "hFE",
          "kind": "electrical",
          "unit": "",
          "min": 100,
          "typ": null,
          "max": 600,
          "conditions": "VCE=-5V,IC=-1mA",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Collector-emitter saturation voltage",
          "symbol": "VCE(sat)",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": -0.3,
          "conditions": "IC=-5mA,IB=-0.25mA",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Transition frequency",
          "symbol": "fT",
          "kind": "electrical",
          "unit": "MHz",
          "min": 250,
          "typ": null,
          "max": null,
          "conditions": "VCE=-10V,IC=-5mA, f=100MHz",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Collector-base voltage",
          "symbol": "VCBO",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": -50,
          "conditions": "Ta=25℃",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Collector-emitter voltage",
          "symbol": "VCEO",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": -50,
          "conditions": "Ta=25℃",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Emitter-base voltage",
          "symbol": "VEBO",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": -5,
          "conditions": "Ta=25℃",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Collector current, continuous",
          "symbol": "IC",
          "kind": "absolute_maximum",
          "unit": "mA",
          "min": null,
          "typ": null,
          "max": -100,
          "conditions": "Ta=25℃",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Collector dissipation",
          "symbol": "PC",
          "kind": "absolute_maximum",
          "unit": "mW",
          "min": null,
          "typ": null,
          "max": 150,
          "conditions": "Ta=25℃",
          "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"
        }
      ]
    }
  },
  "variants": [],
  "sections": [
    "hero",
    "viewers",
    "readme",
    "breadcrumbs",
    "info"
  ],
  "discovery_triggers": [
    "uma3n"
  ],
  "discovery_pitch": "UMA3N (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",
    "uma3n.kicad_sym",
    "uma3n.kicad_mod",
    "uma3n.glb",
    "uma3n.step",
    "uma3n.lbr",
    "docs/hero.png",
    "docs/uma3n-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "uma3n-hero.glb",
    "uma3n-hero.overlay.json",
    "uma3n-etched.glb"
  ],
  "visibility": {
    "public": true
  }
}