main
Ray Set visibility: public d4b5d1b 9d ago
{
  "schema_version": 1,
  "type": "component",
  "slug": "ss8550dta",
  "title": "SS8550DTA",
  "brief": "onsemi Bipolar Transistors - BJT, TO-92-3. 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",
    "triode-mos tube-transistor",
    "ss8550dta",
    "factory-2.0.0",
    "extractor-text"
  ],
  "component": {
    "mpn": "SS8550DTA",
    "manufacturer": "onsemi",
    "package": "TO-92-3",
    "pin_count": 3,
    "category": "Triode/MOS Tube/Transistor",
    "subcategory": "Bipolar Transistors - BJT",
    "datasheet": "https://www.onsemi.com/pdf/datasheet/ss8550dta-d.pdf",
    "parts": {
      "symbol": "ss8550dta.kicad_sym",
      "footprint": "ss8550dta.kicad_mod",
      "model_3d": "ss8550dta-hero.glb",
      "model_3d_plain": "ss8550dta-etched.glb",
      "model_3d_step": "ss8550dta-etched.step",
      "model_3d_step_plain": "ss8550dta.step",
      "lbr": "ss8550dta.lbr"
    },
    "distributor_links": {
      "lcsc": "C903228"
    },
    "distributor_check": {
      "checked_at": "2026-10-22T18:32:24Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "quota"
      },
      "mouser": {
        "pn": null,
        "status": "quota"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "Emitter",
        "type": "passive",
        "description": "Emitter of the PNP transistor; VEBO max −6 V and IEBO max −100 nA at VEB = −6 V."
      },
      {
        "number": "2",
        "name": "Base",
        "type": "passive",
        "description": "Base of the PNP transistor; VBE(on) typ −0.66 V (max −1.00 V) at VCE = −1 V, IC = −10 mA."
      },
      {
        "number": "3",
        "name": "Collector",
        "type": "passive",
        "description": "Collector of the PNP transistor; IC max −1.5 A, VCEO −25 V and VCBO −40 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",
        "consensus_model": "claude-sonnet-5-5",
        "consensus": "agreed",
        "guards": "pin_guards 0.1: passed",
        "guard_notes": [
          "extractor flagged: Pin assignment (1 Emitter, 2 Base, 3 Collector) is read from the page 1 text, which lists one assign"
        ],
        "pages_sent": 6,
        "cost_usd": 0.0512,
        "at": "2026-10-22T18:32:03"
      },
      "datasheet": {
        "url": "https://www.onsemi.com/pdf/datasheet/ss8550dta-d.pdf",
        "pages": 6,
        "sha256": "c9b93a675fd5e8f6",
        "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": [
      {
        "file": "ss8550dta.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "body on z = 0, through-hole leads below",
        "extents_mm": [
          4.83,
          3.745,
          9.8
        ],
        "zmin_mm": -2.5,
        "centre_offset_mm": 0.542,
        "footprint_binding": "identity",
        "sha256": "f0b61c32ecbf0067157adc5a3d4966ceadf5d6dafe93c51af35f76c41c71a54a",
        "checked": "2026-10-22",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "ss8550dta-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "body on z = 0, through-hole leads below",
        "extents_mm": [
          4.83,
          3.745,
          9.8
        ],
        "zmin_mm": -2.5,
        "centre_offset_mm": 0.542,
        "footprint_binding": "identity",
        "sha256": "e50502c0c7cb8adc6e7cbf286d96f8edcbd68018231bf77bf5834c380944f4cf",
        "checked": "2026-10-22",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "onsemi",
      "Package": "TO-92-3",
      "Category": "Triode/MOS Tube/Transistor",
      "Pins": "3"
    },
    "characteristics": {
      "version": 1,
      "source": "datasheet",
      "datasheet_sha256": "c9b93a675fd5e8f6325bfaaa3437718bb7d4b33838e0d693845c8a17e5ce2d1e",
      "rows": [
        {
          "name": "Collector-Base Breakdown Voltage",
          "symbol": "BVCBO",
          "kind": "electrical",
          "unit": "V",
          "min": -40,
          "typ": null,
          "max": null,
          "conditions": "IC = −100 A, IE = 0",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Collector-Emitter Breakdown Voltage",
          "symbol": "BVCEO",
          "kind": "electrical",
          "unit": "V",
          "min": -25,
          "typ": null,
          "max": null,
          "conditions": "IC = −2 mA, IB = 0",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Emitter-Base Breakdown Voltage",
          "symbol": "BVEBO",
          "kind": "electrical",
          "unit": "V",
          "min": -6,
          "typ": null,
          "max": null,
          "conditions": "IE = −100 A, IC = 0",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Collector Cut-Off Current",
          "symbol": "ICBO",
          "kind": "electrical",
          "unit": "nA",
          "min": null,
          "typ": null,
          "max": -100,
          "conditions": "VCB = −35 V, IE = 0",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Emitter Cut-Off Current",
          "symbol": "IEBO",
          "kind": "electrical",
          "unit": "nA",
          "min": null,
          "typ": null,
          "max": -100,
          "conditions": "VEB = −6 V, IC = 0",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "DC Current Gain",
          "symbol": "hFE1",
          "kind": "electrical",
          "unit": "",
          "min": 45,
          "typ": 170,
          "max": null,
          "conditions": "VCE = −1 V, IC = −5 mA",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "DC Current Gain",
          "symbol": "hFE2",
          "kind": "electrical",
          "unit": "",
          "min": 85,
          "typ": 160,
          "max": 300,
          "conditions": "VCE = −1 V, IC = −100 mA",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "DC Current Gain, D classification",
          "symbol": "hFE2",
          "kind": "electrical",
          "unit": "",
          "min": 160,
          "typ": null,
          "max": 300,
          "conditions": "hFE CLASSIFICATION D",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "DC Current Gain",
          "symbol": "hFE3",
          "kind": "electrical",
          "unit": "",
          "min": 40,
          "typ": 80,
          "max": null,
          "conditions": "VCE = −1 V, IC = −800 mA",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Collector-Emitter Saturation Voltage",
          "symbol": "VCE(sat)",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": -0.28,
          "max": -0.5,
          "conditions": "IC = −800 mA, IB = −80 mA",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Base-Emitter Saturation Voltage",
          "symbol": "VBE(sat)",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": -0.98,
          "max": -1.2,
          "conditions": "IC = −800 mA, IB = −80 mA",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Base-Emitter On Voltage",
          "symbol": "VBE(on)",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": -0.66,
          "max": -1,
          "conditions": "VCE = −1 V, IC = −10 mA",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Output Capacitance",
          "symbol": "Cob",
          "kind": "electrical",
          "unit": "pF",
          "min": null,
          "typ": null,
          "max": 15,
          "conditions": "VCB = −10 V, IE = 0, f = 1 MHz",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Current Gain Bandwidth Product",
          "symbol": "fT",
          "kind": "electrical",
          "unit": "MHz",
          "min": 100,
          "typ": 200,
          "max": null,
          "conditions": "VCE = −10 V, IC = −50 mA",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Collector-Base Voltage",
          "symbol": "VCBO",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": -40,
          "conditions": "TA = 25°C",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Collector-Emitter Voltage",
          "symbol": "VCEO",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": -25,
          "conditions": "TA = 25°C",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Emitter-Base Voltage",
          "symbol": "VEBO",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": -6,
          "conditions": "TA = 25°C",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Collector Current",
          "symbol": "IC",
          "kind": "absolute_maximum",
          "unit": "A",
          "min": null,
          "typ": null,
          "max": -1.5,
          "conditions": "TA = 25°C",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Junction Temperature",
          "symbol": "TJ",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": null,
          "typ": null,
          "max": 150,
          "conditions": "TA = 25°C",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Storage Temperature",
          "symbol": "TSTG",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": -65,
          "typ": null,
          "max": 150,
          "conditions": "TA = 25°C",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Power Dissipation",
          "symbol": "PD",
          "kind": "thermal",
          "unit": "W",
          "min": null,
          "typ": null,
          "max": 1,
          "conditions": "TA = 25°C; PCB FR-4 76 mm x 114 mm x 1.57 mm, minimum land pattern",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Power Dissipation Derate Above 25°C",
          "symbol": "PD",
          "kind": "thermal",
          "unit": "mW/°C",
          "min": null,
          "typ": null,
          "max": 8,
          "conditions": "TA = 25°C; PCB FR-4 76 mm x 114 mm x 1.57 mm, minimum land pattern",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Thermal Resistance, Junction-to-Ambient",
          "symbol": "RθJA",
          "kind": "thermal",
          "unit": "°C/W",
          "min": null,
          "typ": null,
          "max": 125,
          "conditions": "TA = 25°C; PCB FR-4 76 mm x 114 mm x 1.57 mm, minimum land pattern",
          "source_page": 1,
          "source": "datasheet"
        }
      ]
    }
  },
  "variants": [],
  "sections": [
    "hero",
    "viewers",
    "readme",
    "breadcrumbs",
    "info"
  ],
  "discovery_triggers": [
    "ss8550dta"
  ],
  "discovery_pitch": "SS8550DTA (onsemi) 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",
    "ss8550dta.kicad_sym",
    "ss8550dta.kicad_mod",
    "ss8550dta.glb",
    "ss8550dta.step",
    "ss8550dta.lbr",
    "docs/hero.png",
    "docs/ss8550dta-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "ss8550dta-hero.glb",
    "ss8550dta-hero.overlay.json",
    "ss8550dta-etched.glb"
  ],
  "visibility": {
    "public": true
  }
}