main
Ray Set visibility: public 2918430 7d ago
{
  "schema_version": 1,
  "type": "component",
  "slug": "mps8550s-d-hxy",
  "title": "MPS8550S-D-HXY",
  "brief": "HXY MOSFET Bipolar (BJT), SOT-23. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
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    "distributor_links": {
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      "source": "Component Ocean /api/assign-pns",
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        "status": "quota"
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      "mouser": {
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    "pins": [
      {
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        "name": "B",
        "type": "input",
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      },
      {
        "number": "2",
        "name": "E",
        "type": "passive",
        "description": "Emitter of the PNP transistor; emitter-base voltage limit is -5 V."
      },
      {
        "number": "3",
        "name": "C",
        "type": "passive",
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      }
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        "consensus_model": "claude-opus-5-5",
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        "guards": "pin_guards 0.1: passed",
        "guard_notes": [
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        "cost_usd": 0.0843,
        "at": "2026-10-18T09:53:19"
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        "sha256": "b54d68de723d8a01",
        "source_tier": "lcsc"
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      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 3,
        "described": 3,
        "cites_pages": true,
        "refuses_to_fabricate": true
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    "viewers": {
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        "seat": "z = 0",
        "extents_mm": [
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        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "dd5d1711204e1d8d26cd11490923bd84340820baa69538c385a4300ec2539bc0",
        "checked": "2026-10-18",
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  "metadata": {
    "specs": {
      "Manufacturer": "HXY MOSFET",
      "Package": "SOT-23",
      "Category": "Transistors/Thyristors",
      "Pins": "3"
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    "characteristics": {
      "version": 1,
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          "unit": "V",
          "min": null,
          "typ": null,
          "max": -40,
          "conditions": "",
          "source_page": 1,
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        {
          "name": "Collector-Emitter Voltage",
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          "kind": "absolute_maximum",
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          "min": null,
          "typ": null,
          "max": -25,
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        {
          "name": "Emitter-Base Voltage",
          "symbol": "VEBO",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": -5,
          "conditions": "",
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        },
        {
          "name": "Collector Current",
          "symbol": "IC",
          "kind": "absolute_maximum",
          "unit": "A",
          "min": null,
          "typ": null,
          "max": -1.5,
          "conditions": "",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Collector Power Dissipation",
          "symbol": "PC",
          "kind": "absolute_maximum",
          "unit": "mW",
          "min": null,
          "typ": null,
          "max": 300,
          "conditions": "",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Thermal Resistance From Junction To Ambient",
          "symbol": "RΘJA",
          "kind": "thermal",
          "unit": "°C/W",
          "min": null,
          "typ": null,
          "max": 417,
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        {
          "name": "Junction Temperature",
          "symbol": "Tj",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": null,
          "typ": null,
          "max": 150,
          "conditions": "",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Storage Temperature",
          "symbol": "Tstg",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": -55,
          "typ": null,
          "max": 150,
          "conditions": "",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Collector-base breakdown voltage",
          "symbol": "V(BR)CBO",
          "kind": "electrical",
          "unit": "V",
          "min": -40,
          "typ": null,
          "max": null,
          "conditions": "IC=-100µA, IE=0",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Collector-emitter breakdown voltage",
          "symbol": "V(BR)CEO",
          "kind": "electrical",
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          "min": -25,
          "typ": null,
          "max": null,
          "conditions": "IC=-0.1mA, IB=0",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Emitter-base breakdown voltage",
          "symbol": "V(BR)EBO",
          "kind": "electrical",
          "unit": "V",
          "min": -5,
          "typ": null,
          "max": null,
          "conditions": "IE=-100µA, 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=-40V, 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=-5V, IC=0",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "DC current gain",
          "symbol": "hFE(1)",
          "kind": "electrical",
          "unit": "",
          "min": 200,
          "typ": null,
          "max": 350,
          "conditions": "VCE=-1V, IC=-100mA",
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          "source": "datasheet"
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        {
          "name": "DC current gain",
          "symbol": "hFE(2)",
          "kind": "electrical",
          "unit": "",
          "min": 40,
          "typ": null,
          "max": null,
          "conditions": "VCE=-1V, IC=-800mA",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Collector-emitter saturation voltage",
          "symbol": "VCE(sat)",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": -0.5,
          "conditions": "IC=-800mA, IB=-80mA",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Base-emitter saturation voltage",
          "symbol": "VBE(sat)",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": -1.2,
          "conditions": "IC=-800mA, IB=-80mA",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Base-emitter voltage",
          "symbol": "VBE",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": -1,
          "conditions": "VCE=-1V, IC=-10mA",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Transition frequency",
          "symbol": "fT",
          "kind": "electrical",
          "unit": "MHz",
          "min": 100,
          "typ": null,
          "max": null,
          "conditions": "VCE=-10V, IC=-50mA, f=30MHz",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Collector output capacitance",
          "symbol": "Cob",
          "kind": "electrical",
          "unit": "pF",
          "min": null,
          "typ": null,
          "max": 20,
          "conditions": "VCB=-10V, IE=0, f=1MHz",
          "source_page": 2,
          "source": "datasheet"
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      ]
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  },
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  "discovery_triggers": [
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  "discovery_pitch": "MPS8550S-D-HXY (HXY MOSFET) component page: datasheet pinout, KiCad symbol, footprint and 3D.",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
  },
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