main
Ray Set visibility: public 425a343
{
  "schema_version": 1,
  "type": "component",
  "slug": "ecs-120-18-5px-jes-tr",
  "title": "ECS-120-18-5PX-JES-TR",
  "brief": "ECS Pre-ordered Products, HC-49S-SMD. 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": "ECS-120-18-5PX-JES-TR",
    "manufacturer": "ECS",
    "package": "HC-49S-SMD",
    "pin_count": 2,
    "category": "Electronic Tools/Instruments/Consumables",
    "subcategory": "Pre-ordered Products",
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      "model_3d_plain": "ecs-120-18-5px-jes-tr-etched.glb",
      "model_3d_step": "ecs-120-18-5px-jes-tr-etched.step",
      "model_3d_step_plain": "ecs-120-18-5px-jes-tr.step",
      "lbr": "ecs-120-18-5px-jes-tr.lbr"
    },
    "distributor_links": {
      "lcsc": "C2450088",
      "digikey": "XC3073TR-ND",
      "mouser": "520-120-18-5PX-JEST"
    },
    "distributor_check": {
      "checked_at": "2026-11-07T01:01:25Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "XC3073TR-ND",
        "status": "found"
      },
      "mouser": {
        "pn": "520-120-18-5PX-JEST",
        "status": "found"
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    },
    "pins": [
      {
        "number": "1",
        "name": "1",
        "type": "passive",
        "description": "Crystal terminal; the crystal is symmetrical and pins 1 and 2 are interchangeable."
      },
      {
        "number": "2",
        "name": "2",
        "type": "passive",
        "description": "Crystal terminal; the crystal is symmetrical and pins 1 and 2 are interchangeable."
      }
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        "primary_model": "claude-sonnet-5-5",
        "primary_mode": "text",
        "consensus_model": "claude-sonnet-5-5",
        "consensus": "agreed",
        "guards": "pin_guards 0.1: passed",
        "guard_notes": [
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        ],
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        "cost_usd": 0.0228,
        "at": "2026-11-07T01:01:18"
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        "pages": 2,
        "sha256": "3c37399dc16c468c",
        "source_tier": "lcsc"
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      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 2,
        "described": 2,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
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      "footprint": "viewers/footprint.html"
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        "seat": "z = 0",
        "extents_mm": [
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        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "dd38aecf8628f7c874854f509a085f8692ce3b6264ab09ced3b167e99ad5eb5e",
        "checked": "2026-11-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "ecs-120-18-5px-jes-tr-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
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        "centre_offset_mm": 0,
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        "sha256": "3a853ecc94110b4dfe598d44e7e4a03542c8d60243c1fd4e53096a13a98bbf4a",
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  },
  "metadata": {
    "specs": {
      "Manufacturer": "ECS",
      "Package": "HC-49S-SMD",
      "Category": "Electronic Tools/Instruments/Consumables",
      "Pins": "2"
    },
    "appearance": {
      "contacts": {
        "quote": "MSL 1, Lead Finish Sn/Cu Matte POCKET TAPE DIMENSIONS (mm)",
        "page": 2,
        "doc": "ds.pdf",
        "plating": "tin"
      },
      "version": 1,
      "datasheet_sha256": "3c37399dc16c468c4fbc03b701a2534970e5f29474d51bfc916d0736f2579918"
    },
    "characteristics": {
      "version": 1,
      "source": "datasheet",
      "datasheet_sha256": "3c37399dc16c468c4fbc03b701a2534970e5f29474d51bfc916d0736f2579918",
      "rows": [
        {
          "name": "Frequency Tolerance (J option, ±20 ppm)",
          "symbol": "",
          "kind": "tolerance",
          "unit": "ppm",
          "min": -20,
          "typ": null,
          "max": 20,
          "conditions": "@ +25°C",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Frequency Stability (E option, ±50 ppm)",
          "symbol": "",
          "kind": "tolerance",
          "unit": "ppm",
          "min": -50,
          "typ": null,
          "max": 50,
          "conditions": "Standard -10 ~ +70°C",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Aging (First Year)",
          "symbol": "",
          "kind": "tolerance",
          "unit": "ppm",
          "min": -5,
          "typ": null,
          "max": 5,
          "conditions": "@ +25°C ±3°C, first year",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Drive Level",
          "symbol": "DL",
          "kind": "recommended_operating",
          "unit": "μW",
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          "source_page": 1,
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        {
          "name": "Operating Temperature",
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        {
          "name": "Storage Temperature",
          "symbol": "Tstg",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": -55,
          "typ": null,
          "max": 125,
          "conditions": "",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Equivalent Series Resistance (ESR)",
          "symbol": "ESR",
          "kind": "electrical",
          "unit": "Ω",
          "min": null,
          "typ": null,
          "max": 50,
          "conditions": "9.000 ~ 12.999 MHz, Fundamental mode",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Shunt Capacitance",
          "symbol": "Co",
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          "unit": "pF",
          "min": null,
          "typ": 7,
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        {
          "name": "Frequency",
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          "kind": "electrical",
          "unit": "MHz",
          "min": 3.57,
          "typ": 12,
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          "conditions": "Range 3.57 to 70.000 MHz; this P/N 12.000 MHz",
          "source_page": 1,
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  "discovery_triggers": [
    "ecs-120-18-5px-jes-tr"
  ],
  "discovery_pitch": "ECS-120-18-5PX-JES-TR (ECS) component page: datasheet pinout, KiCad symbol, footprint and 3D.",
  "author": {
    "name": "Ray"
  },
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    "ecs-120-18-5px-jes-tr-etched.glb"
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  "visibility": {
    "public": true
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}