HSO321S 50MHZ 3.3V 50PPM -40~+85℃

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  "version": "0.1.0",
  "type": "component",
  "description": "HELE(Harmony Elec) Oscillators, SMD3225-4P. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
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  "component": {
    "mpn": "HSO321S 50MHZ 3.3V 50PPM -40~+85℃",
    "manufacturer": "HELE(Harmony Elec)",
    "package": "SMD3225-4P",
    "pin_count": 4,
    "category": "Crystals/Oscillators/Resonators",
    "subcategory": "Oscillators",
    "datasheet": "https://datasheet.lcsc.com/datasheet/pdf/1d621070c0933ca9441e493bd7b98ec7.pdf",
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    "distributor_links": {
      "lcsc": "C160451"
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    "distributor_check": {
      "checked_at": "2026-10-21T13:18:44Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "quota"
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      "mouser": {
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        "status": "quota"
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    "pins": [
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        "number": "1",
        "name": "OE",
        "type": "input",
        "description": "Output enable input: open or H gives oscillation output, L puts the output in high impedance (Vih min 0.7xVdd, Vil max 0.3xVdd)."
      },
      {
        "number": "2",
        "name": "GND",
        "type": "power_in",
        "description": "Ground; a 0.01uF bypass capacitor between Vdd and GND is recommended."
      },
      {
        "number": "3",
        "name": "Output",
        "type": "output",
        "description": "C-MOS clock output (50.000 MHz), rated for CL=15pF with Voh min 0.9xVdd and Vol max 0.1xVdd."
      },
      {
        "number": "4",
        "name": "Vdd",
        "type": "power_in",
        "description": "Supply voltage 3.0 to 3.6 V (3.3 V typ), absolute maximum -0.5 to 4.0 V."
      }
    ],
    "provenance": {
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      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
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        "described": 4,
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}