X1E0000210179

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  "type": "component",
  "slug": "x1e0000210179",
  "title": "X1E0000210179",
  "brief": "Seiko Epson Crystals, SMD3225-4P. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
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    "mpn": "X1E0000210179",
    "manufacturer": "Seiko Epson",
    "package": "SMD3225-4P",
    "pin_count": 4,
    "category": "Crystals/Oscillators/Resonators",
    "subcategory": "Crystals",
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    "distributor_links": {
      "lcsc": "C255942"
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      "source": "Component Ocean /api/assign-pns",
      "digikey": {
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        "status": "quota"
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        "status": "quota"
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      {
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        "name": "#1",
        "type": "passive",
        "description": "Crystal unit terminal #1 (internal connection to the resonator), part of TSX-3225 40.000000 MHz, CL 12 pF, R1 max 40 Ω."
      },
      {
        "number": "2",
        "name": "#2 (GND/cover)",
        "type": "power_in",
        "description": "Connected internally to the cover; the datasheet asks to connect it to ground."
      },
      {
        "number": "3",
        "name": "#3",
        "type": "passive",
        "description": "Crystal unit terminal #3 (internal connection to the resonator), part of TSX-3225 40.000000 MHz, CL 12 pF, R1 max 40 Ω."
      },
      {
        "number": "4",
        "name": "#4 (GND/cover)",
        "type": "power_in",
        "description": "Connected internally to the cover; the datasheet asks to connect it to ground."
      }
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        "guards": "pin_guards 0.1: passed",
        "guard_notes": [
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        "at": "2026-10-22T21:26:50"
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      "cad": "KiCad official (CC-BY-SA 4.0)",
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        "described": 4,
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        "refuses_to_fabricate": true
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  "metadata": {
    "specs": {
      "Manufacturer": "Seiko Epson",
      "Package": "SMD3225-4P",
      "Category": "Crystals/Oscillators/Resonators",
      "Pins": "4"
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    "characteristics": {
      "version": 1,
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          "max": 125,
          "conditions": "Storage as single product",
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        {
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        {
          "name": "Frequency stability over temperature",
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          "kind": "temperature_coefficient",
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        {
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        {
          "name": "Level of drive",
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        {
          "name": "Motional resistance (ESR)",
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          "unit": "x10-6 /year",
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        {
          "name": "Load capacitance",
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          "typ": 12,
          "max": null,
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        },
        {
          "name": "Motional capacitance",
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          "max": null,
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        {
          "name": "Motional inductance",
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          "typ": 3.59,
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        {
          "name": "Shunt capacitance",
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          "unit": "pF",
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  "discovery_pitch": "X1E0000210179 (Seiko Epson) component page: datasheet pinout, KiCad symbol, footprint and 3D.",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
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