main
Ray Set visibility: public b19b430 17d ago
{
  "schema_version": 1,
  "type": "component",
  "slug": "ecs-245-7-12-33q-jes-tr",
  "title": "ECS-245.7-12-33Q-JES-TR",
  "brief": "ECS Crystals, SMD3225-4P. 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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    "crystals, oscillators, resonators",
    "ecs-245.7-12-33q-jes-tr",
    "factory-2.0.0",
    "extractor-text"
  ],
  "component": {
    "mpn": "ECS-245.7-12-33Q-JES-TR",
    "manufacturer": "ECS",
    "package": "SMD3225-4P",
    "pin_count": 4,
    "category": "Crystals, Oscillators, Resonators",
    "subcategory": "Crystals",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588934880947785728",
    "parts": {
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      "footprint": "ecs-245-7-12-33q-jes-tr.kicad_mod",
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      "model_3d_plain": "ecs-245-7-12-33q-jes-tr-etched.glb",
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      "model_3d_step_plain": "ecs-245-7-12-33q-jes-tr.step",
      "lbr": "ecs-245-7-12-33q-jes-tr.lbr"
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    "distributor_links": {
      "lcsc": "C435182",
      "digikey": "XC2178TR-ND",
      "mouser": "520-245.7-12-33QJEST"
    },
    "distributor_check": {
      "checked_at": "2026-10-16T21:19:29Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "XC2178TR-ND",
        "status": "found",
        "lifecycle": "Active"
      },
      "mouser": {
        "pn": "520-245.7-12-33QJEST",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "In/Out",
        "type": "passive",
        "description": "Crystal terminal; the crystal is symmetrical, so pad 1 and pad 3 are interchangeable."
      },
      {
        "number": "2",
        "name": "Gnd",
        "type": "power_in",
        "description": "Ground pad connection as printed in the Pad Connections table; the chamfer on the bottom pad has no electrical significance."
      },
      {
        "number": "3",
        "name": "Out/In",
        "type": "passive",
        "description": "Crystal terminal; the crystal is symmetrical, so pad 3 and pad 1 are interchangeable."
      },
      {
        "number": "4",
        "name": "Gnd",
        "type": "power_in",
        "description": "Ground pad connection as printed in the Pad Connections table; the chamfer on the bottom pad has no electrical significance."
      }
    ],
    "provenance": {
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        "extractor": "extract_pins 0.3",
        "primary_model": "claude-haiku-5-5",
        "primary_mode": "text",
        "consensus_model": "claude-sonnet-5-5",
        "consensus": "agreed",
        "guards": "pin_guards 0.1: passed",
        "guard_notes": [
          "extractor flagged: The datasheet does not print the package name 'SMD3225-4P'. It describes a 3.2 x 2.5 mm footprint wi; The MPN ECS-245.7-12-33Q-JES-TR is a 24.576 MHz part (abbreviation 245.7 in the developed frequencie; Pin 1 and pin 3 are both labelled as crystal terminals (In/Out and Out/In). The datasheet says they "
        ],
        "pages_sent": 2,
        "cost_usd": 0.0159,
        "at": "2026-10-16T21:19:16"
      },
      "datasheet": {
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        "pages": 2,
        "sha256": "c0df4dfd11badf1f",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 4,
        "described": 4,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
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      "footprint": "viewers/footprint.html"
    },
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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": 0.001,
        "footprint_binding": "identity",
        "sha256": "d2a89df82ee5f0f56ef23ee59c8161b8d4e92af2b21959d72778316dde3f9f22",
        "checked": "2026-10-16",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
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        "role": "eda",
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        "sha256": "cca1d198611aa029cbee9f96bce66ec7e1b0611f0c69e558507ef27c4a51934e",
        "checked": "2026-10-16",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "ECS",
      "Package": "SMD3225-4P",
      "Category": "Crystals, Oscillators, Resonators",
      "Pins": "4"
    },
    "appearance": {
      "contacts": {
        "quote": "MSL 1, Lead Finish Au POCKET TAPE DIMENSIONS (mm)",
        "page": 2,
        "doc": "ds.pdf",
        "plating": "gold"
      },
      "version": 1,
      "datasheet_sha256": "c0df4dfd11badf1f7a2adb6f1aa37f2803bb1928a4cac51cec59a97aeb7f9f34"
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    "characteristics": {
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      "datasheet_sha256": "c0df4dfd11badf1f7a2adb6f1aa37f2803bb1928a4cac51cec59a97aeb7f9f34",
      "rows": [
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        {
          "name": "Frequency tolerance",
          "symbol": "",
          "kind": "tolerance",
          "unit": "ppm",
          "min": -20,
          "typ": null,
          "max": 20,
          "conditions": "@ +25°C; P/N code J = ±20 ppm",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Frequency stability",
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          "kind": "tolerance",
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          "conditions": "P/N code E = ±50 ppm; temp range S (-40 ~ +125°C)",
          "source_page": 1,
          "source": "datasheet"
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          "name": "Aging (first year)",
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        {
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          "min": null,
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        },
        {
          "name": "Equivalent series resistance (ESR)",
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          "conditions": "Frequency 24.000 ~ 40.000 MHz",
          "source_page": 1,
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        },
        {
          "name": "Drive level",
          "symbol": "DL",
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          "unit": "μW",
          "min": null,
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          "source_page": 1,
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        },
        {
          "name": "Operating temperature",
          "symbol": "Topr",
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          "source_page": 1,
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          "unit": "°C",
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        },
        {
          "name": "Peak solder temperature",
          "symbol": "",
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          "unit": "°C",
          "min": null,
          "typ": null,
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          "conditions": "Peak solder; max 10 sec; 2 cycles max",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Nominal frequency",
          "symbol": "",
          "kind": "electrical",
          "unit": "MHz",
          "min": null,
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          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Load capacitance",
          "symbol": "",
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          "unit": "pF",
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          "max": null,
          "conditions": "P/N code 12",
          "source_page": 1,
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  },
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  "discovery_triggers": [
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  ],
  "discovery_pitch": "ECS-245.7-12-33Q-JES-TR (ECS) component page: datasheet pinout, KiCad symbol, footprint and 3D.",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
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