main
Ray Set visibility: public f63cd0d 3h ago
{
  "schema_version": 1,
  "type": "component",
  "slug": "x1g0054410303",
  "title": "X1G0054410303",
  "brief": "Seiko Epson Temperature Compensated Crystal Oscillators (TCXO), SMD2016-4P. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.1.0",
  "license": "CC-BY-SA-4.0",
  "tags": [
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  "component": {
    "mpn": "X1G0054410303",
    "manufacturer": "Seiko Epson",
    "package": "SMD2016-4P",
    "pin_count": 4,
    "category": "Crystals, Oscillators, Resonators",
    "subcategory": "Temperature Compensated Crystal Oscillators (TCXO)",
    "datasheet": "https://datasheet.lcsc.com/datasheet/pdf/ec23a1a9b1d77dc679765592a39b4c7b.pdf",
    "parts": {
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    "distributor_links": {
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      "checked_at": "2026-10-22T22:03:34Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
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        "status": "quota"
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      "mouser": {
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        "description": "No connection on the TCXO version (Vc on the VC-TCXO version); keep this pin open or connected to GND, noting that it does not work as a ground pin."
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        "name": "GND",
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        "description": "Ground (0 V); the metal cap on top of the device is directly connected to this pin, so keep any non-ground conductor from touching the cap."
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        "type": "output",
        "description": "Clipped sine wave output (min 0.8 Vpp into 10 kΩ // 10 pF) that requires an external DC-cut capacitor of 0.01 μF min, which is not included in the TCXO."
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        "name": "VCC",
        "type": "power_in",
        "description": "Supply voltage of 2.66 V to 3.465 V for this MCGNNM part (absolute maximum 4.0 V), with a 0.01 μF to 0.1 μF bypass capacitor to GND placed close to the device."
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        "cost_usd": 0.1331,
        "at": "2026-10-22T22:03:20"
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        "pages": 18,
        "sha256": "4b52ee2caec208ae",
        "source_tier": "lcsc"
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      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 4,
        "described": 4,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
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        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
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        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "eea7262e5781943394ac3ed4f9d076ea60a9856fdf5911f6ab502d1fcc1b0836",
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  "metadata": {
    "specs": {
      "Manufacturer": "Seiko Epson",
      "Package": "SMD2016-4P",
      "Category": "Crystals, Oscillators, Resonators",
      "Pins": "4"
    },
    "appearance": {
      "contacts": {
        "quote": "Terminal coating : Au plating capacitor(0.01 μF to 0.1 μF) between Vcc and GND. Please place it as close to TCXO as possible.",
        "page": 14,
        "doc": "ds.pdf",
        "plating": "gold"
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      "version": 1,
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    "characteristics": {
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      "rows": [
        {
          "name": "Supply voltage",
          "symbol": "Vcc",
          "kind": "recommended_operating",
          "unit": "V",
          "min": 2.66,
          "typ": null,
          "max": 3.465,
          "conditions": "",
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        {
          "name": "Operating temperature range",
          "symbol": "T_use",
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          "unit": "°C",
          "min": -40,
          "typ": null,
          "max": 85,
          "conditions": "",
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        {
          "name": "Output load resistance",
          "symbol": "Load_R",
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          "unit": "kΩ",
          "min": 9,
          "typ": 10,
          "max": 11,
          "conditions": "",
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        {
          "name": "Output load capacitance",
          "symbol": "Load_C",
          "kind": "recommended_operating",
          "unit": "pF",
          "min": 9,
          "typ": 10,
          "max": 11,
          "conditions": "",
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        },
        {
          "name": "DC-cut capacitor",
          "symbol": "Cc",
          "kind": "recommended_operating",
          "unit": "μF",
          "min": 0.01,
          "typ": null,
          "max": null,
          "conditions": "external, not included",
          "source_page": 1,
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        },
        {
          "name": "Output frequency",
          "symbol": "fo",
          "kind": "electrical",
          "unit": "MHz",
          "min": null,
          "typ": 19.2,
          "max": null,
          "conditions": "Vcc = 2.66 to 3.465 V, Load = 10 kΩ // 10 pF, T_use = +25 °C",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Frequency tolerance before reflow",
          "symbol": "f_tol",
          "kind": "tolerance",
          "unit": "x10⁻⁶",
          "min": -0.5,
          "typ": null,
          "max": 0.5,
          "conditions": "T_use = +25 °C ± 2 °C, Before reflow",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Frequency tolerance after 2 reflows",
          "symbol": "f_tol",
          "kind": "tolerance",
          "unit": "x10⁻⁶",
          "min": -1.5,
          "typ": null,
          "max": 1.5,
          "conditions": "T_use = +25 °C ± 2 °C, After 2 reflows",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Frequency / temperature characteristics",
          "symbol": "fo-Tc",
          "kind": "temperature_coefficient",
          "unit": "x10⁻⁶",
          "min": -0.5,
          "typ": null,
          "max": 0.5,
          "conditions": "T_use = -40 °C to +85 °C (Reference to +25 °C)",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Frequency / load coefficient",
          "symbol": "fo-Load",
          "kind": "electrical",
          "unit": "x10⁻⁶",
          "min": -0.1,
          "typ": null,
          "max": 0.1,
          "conditions": "Load ± 10 %",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Frequency / voltage coefficient",
          "symbol": "fo-Vcc",
          "kind": "voltage_coefficient",
          "unit": "x10⁻⁶",
          "min": -0.1,
          "typ": null,
          "max": 0.1,
          "conditions": "Vcc ± 5 %",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Frequency aging first year",
          "symbol": "f_age",
          "kind": "electrical",
          "unit": "x10⁻⁶",
          "min": -0.5,
          "typ": null,
          "max": 0.5,
          "conditions": "T_use = +25 °C first year",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Frequency aging 10 years",
          "symbol": "f_age",
          "kind": "electrical",
          "unit": "x10⁻⁶",
          "min": -3.5,
          "typ": null,
          "max": 3.5,
          "conditions": "T_use = +25 °C 10 years",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Current consumption",
          "symbol": "Icc",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": null,
          "max": 1.5,
          "conditions": "",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Output level",
          "symbol": "Vpp",
          "kind": "electrical",
          "unit": "V",
          "min": 0.8,
          "typ": null,
          "max": null,
          "conditions": "Peak to peak voltage",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Symmetry",
          "symbol": "SYM",
          "kind": "electrical",
          "unit": "%",
          "min": 45,
          "typ": 50,
          "max": 55,
          "conditions": "GND level (DC-cut)",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Start up time (frequency)",
          "symbol": "t_str",
          "kind": "timing",
          "unit": "ms",
          "min": null,
          "typ": null,
          "max": 2,
          "conditions": "Until frequency has been reached within ±0.5 x 10⁻⁶ of final freq.",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Start up time (amplitude)",
          "symbol": "t_str",
          "kind": "timing",
          "unit": "ms",
          "min": null,
          "typ": null,
          "max": 1,
          "conditions": "Until output signal has been reached min 90 % of final amp.",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Harmonics",
          "symbol": "",
          "kind": "electrical",
          "unit": "dBc",
          "min": null,
          "typ": null,
          "max": -5,
          "conditions": "3rd harmonics",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Supply voltage",
          "symbol": "VCC-GND",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.5,
          "typ": null,
          "max": 4,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Storage temperature range",
          "symbol": "T_stg",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": -40,
          "typ": null,
          "max": 90,
          "conditions": "Storage as single product",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Phase noise",
          "symbol": "L(f)",
          "kind": "electrical",
          "unit": "dBc/Hz",
          "min": null,
          "typ": -161,
          "max": null,
          "conditions": "fo = 26 MHz, 100 kHz offset",
          "source_page": 5,
          "source": "datasheet"
        }
      ]
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  "discovery_pitch": "X1G0054410303 (Seiko Epson) component page: datasheet pinout, KiCad symbol, footprint and 3D.",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
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