main
Ray Set visibility: public 8ae1c64 10h ago
{
  "schema_version": 1,
  "type": "component",
  "slug": "nx2520sa-16mhz-std-csw-5",
  "title": "NX2520SA-16MHZ-STD-CSW-5",
  "brief": "NDK Crystals, SMD2520-4P. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
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  "license": "CC-BY-SA-4.0",
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  "component": {
    "mpn": "NX2520SA-16MHZ-STD-CSW-5",
    "manufacturer": "NDK",
    "package": "SMD2520-4P",
    "pin_count": 4,
    "category": "Crystals/Oscillators/Resonators",
    "subcategory": "Crystals",
    "datasheet": "https://datasheet.lcsc.com/datasheet/pdf/51e8d4b12ea3d7a9005b0dc5eb61ccb3.pdf",
    "parts": {
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      "model_3d": "nx2520sa-16mhz-std-csw-5-hero.glb",
      "model_3d_plain": "nx2520sa-16mhz-std-csw-5-etched.glb",
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      "lbr": "nx2520sa-16mhz-std-csw-5.lbr"
    },
    "distributor_links": {
      "lcsc": "C280836",
      "mouser": "344-NX2520SA16MCSW5"
    },
    "distributor_check": {
      "checked_at": "2026-10-21T06:30:18Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "no match"
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      "mouser": {
        "pn": "344-NX2520SA16MCSW5",
        "status": "found",
        "lifecycle": "Part Number Change"
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    },
    "pins": [
      {
        "number": "1",
        "name": "XTAL1",
        "type": "passive",
        "description": "Crystal terminal (#1, X'tal) of the NX2520SA 16.000 MHz unit, connected to the crystal element; interchangeable with terminal #3."
      },
      {
        "number": "2",
        "name": "GND",
        "type": "power_in",
        "description": "Ground terminal connected to the metal cover (#2, GND/cover connection)."
      },
      {
        "number": "3",
        "name": "XTAL2",
        "type": "passive",
        "description": "Crystal terminal (#3, X'tal) of the NX2520SA 16.000 MHz unit, connected to the crystal element; interchangeable with terminal #1."
      },
      {
        "number": "4",
        "name": "GND",
        "type": "power_in",
        "description": "Ground terminal connected to the metal cover (#4, GND/cover connection)."
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        "primary_mode": "text",
        "consensus_model": "claude-sonnet-5-5",
        "consensus": "agreed",
        "guards": "pin_guards 0.1: passed",
        "guard_notes": [
          "extractor flagged: The datasheet gives the pinout only as a 4-terminal dimension drawing (EXD14B-00420, NX2520SA, 2.5 x; The datasheet covers only one package variant (NX2520SA) and the MPN's 16 MHz frequency and NDK spec; The pin connection is given in a TOP VIEW text description without explicit physical coordinates for"
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        "pages_sent": 7,
        "cost_usd": 0.0273,
        "at": "2026-10-21T06:26:41"
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        "pages": 7,
        "sha256": "6d7b02f9870c6428",
        "source_tier": "lcsc"
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      "cad": "KiCad official (CC-BY-SA 4.0)",
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        "described": 4,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
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    "viewers": {
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      "footprint": "viewers/footprint.html"
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        "role": "plain",
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        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
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        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "cd0c53e8a35a3cb36fc18e5248a2acf382b94b62d156b7bb9cc398eef3e21c4a",
        "checked": "2026-10-21",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
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        "footprint_binding": "identity",
        "sha256": "878b83c63a24a623893d059f70e2af009b562291d19988147bf1dbc5ec67a78a",
        "checked": "2026-10-21",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
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  },
  "metadata": {
    "specs": {
      "Manufacturer": "NDK",
      "Package": "SMD2520-4P",
      "Category": "Crystals/Oscillators/Resonators",
      "Pins": "4"
    },
    "characteristics": {
      "version": 1,
      "source": "datasheet",
      "datasheet_sha256": "6d7b02f9870c6428325e7a3fbc8426b41a56e0c7a70d18faaa249a2cbd0b6b2f",
      "rows": [
        {
          "name": "Frequency tolerance",
          "symbol": "",
          "kind": "tolerance",
          "unit": "ppm",
          "min": -15,
          "typ": null,
          "max": 15,
          "conditions": "at +25C",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Frequency versus Temperature Characteristic",
          "symbol": "",
          "kind": "temperature_coefficient",
          "unit": "ppm",
          "min": -25,
          "typ": null,
          "max": 25,
          "conditions": "at -40 to +85C",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Insulation resistance",
          "symbol": "",
          "kind": "electrical",
          "unit": "Mohm",
          "min": 500,
          "typ": null,
          "max": null,
          "conditions": "DC100V 15V applied, terminal to terminal and terminal to cover",
          "source_page": 2,
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        {
          "name": "Equivalent resistance",
          "symbol": "",
          "kind": "electrical",
          "unit": "ohm",
          "min": null,
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          "conditions": "IEC-network / Series",
          "source_page": 2,
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        },
        {
          "name": "Level of drive",
          "symbol": "",
          "kind": "electrical",
          "unit": "W",
          "min": null,
          "typ": 10,
          "max": 200,
          "conditions": "",
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        },
        {
          "name": "Operating temperature range",
          "symbol": "",
          "kind": "recommended_operating",
          "unit": "C",
          "min": -40,
          "typ": null,
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        {
          "name": "Storage temperature range",
          "symbol": "",
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          "min": -40,
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          "conditions": "",
          "source_page": 2,
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        },
        {
          "name": "Air-tightness",
          "symbol": "",
          "kind": "electrical",
          "unit": "x10-9 Pa m3/s",
          "min": null,
          "typ": null,
          "max": 1.1,
          "conditions": "Helium leak detector",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Reflow soldering peak temperature",
          "symbol": "",
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          "min": null,
          "typ": null,
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          "conditions": "Peak temperature, 10 sec; reflow passage twice",
          "source_page": 3,
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        },
        {
          "name": "Manual soldering iron temperature",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "C",
          "min": null,
          "typ": null,
          "max": 400,
          "conditions": "Soldering iron pressed on terminal electrode, 4 sec (twice)",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Load capacitance",
          "symbol": "CL",
          "kind": "electrical",
          "unit": "pF",
          "min": null,
          "typ": 8,
          "max": null,
          "conditions": "IEC-network",
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        {
          "name": "Nominal frequency",
          "symbol": "fnom",
          "kind": "electrical",
          "unit": "MHz",
          "min": null,
          "typ": 16,
          "max": null,
          "conditions": "",
          "source_page": 2,
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  "discovery_triggers": [
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  "discovery_pitch": "NX2520SA-16MHZ-STD-CSW-5 (NDK) component page: datasheet pinout, KiCad symbol, footprint and 3D.",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
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