ECS-320-8-37CKM

{
  "schema_version": 1,
  "type": "component",
  "slug": "ecs-320-8-37ckm",
  "title": "ECS-320-8-37CKM",
  "brief": "ECS Crystals, 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": [
    "component",
    "crystals, oscillators, resonators",
    "ecs-320-8-37ckm",
    "factory-2.0.0",
    "extractor-text"
  ],
  "component": {
    "mpn": "ECS-320-8-37CKM",
    "manufacturer": "ECS",
    "package": "SMD2016-4P",
    "pin_count": 4,
    "category": "Crystals, Oscillators, Resonators",
    "subcategory": "Crystals",
    "datasheet": "https://datasheet.lcsc.com/datasheet/pdf/2818cf710d2a9176f32aafb18251ae48.pdf",
    "parts": {
      "symbol": "ecs-320-8-37ckm.kicad_sym",
      "footprint": "ecs-320-8-37ckm.kicad_mod",
      "model_3d": "ecs-320-8-37ckm-hero.glb",
      "model_3d_plain": "ecs-320-8-37ckm-etched.glb",
      "model_3d_step": "ecs-320-8-37ckm-etched.step",
      "model_3d_step_plain": "ecs-320-8-37ckm.step",
      "lbr": "ecs-320-8-37ckm.lbr"
    },
    "distributor_links": {
      "lcsc": "C387624",
      "digikey": "XC1547TR-ND",
      "mouser": "520-ECS-320-8-37CKM"
    },
    "distributor_check": {
      "checked_at": "2026-10-28T20:02:51Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "XC1547TR-ND",
        "status": "found",
        "lifecycle": "Active"
      },
      "mouser": {
        "pn": "520-ECS-320-8-37CKM",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "In/Out",
        "type": "passive",
        "description": "Crystal terminal (labelled In/Out); pads 1 and 3 are interchangeable because the crystal is symmetrical, and the chamfer on the bottom pad has no electrical significance."
      },
      {
        "number": "2",
        "name": "Gnd",
        "type": "power_in",
        "description": "Ground pad as given in the datasheet pad connection table (Gnd)."
      },
      {
        "number": "3",
        "name": "Out/In",
        "type": "passive",
        "description": "Crystal terminal (labelled Out/In); pads 1 and 3 are interchangeable because the crystal is symmetrical, and the chamfer on the bottom pad has no electrical significance."
      },
      {
        "number": "4",
        "name": "Gnd",
        "type": "power_in",
        "description": "Ground pad as given in the datasheet pad connection table (Gnd)."
      }
    ],
    "provenance": {
      "extractor": "extract_pins 0.3",
      "factory_chain": {
        "factory": "2.0.0",
        "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 never prints the name 'SMD2016-4P'. I matched it to the 2.0 x 1.6 mm four-pad ECX-1637; The datasheet labels these pads 'In/Out' and 'Out/In' rather than with a KiCad class. I assigned 'pa; The datasheet gives only 'Gnd' for both pads. I used power_in as instructed for GND. The datasheet g"
        ],
        "pages_sent": 2,
        "cost_usd": 0.0149,
        "at": "2026-10-28T20:02:40"
      },
      "datasheet": {
        "url": "https://datasheet.lcsc.com/datasheet/pdf/2818cf710d2a9176f32aafb18251ae48.pdf",
        "pages": 2,
        "sha256": "1fdd3d68782fd6d0",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 4,
        "described": 4,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
      {
        "file": "ecs-320-8-37ckm.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          2,
          1.6,
          0.93
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "eea7262e5781943394ac3ed4f9d076ea60a9856fdf5911f6ab502d1fcc1b0836",
        "checked": "2026-10-28",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "ecs-320-8-37ckm-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          2,
          1.6,
          0.93
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "e8b06336fac250fb8940df448b83d2b8545874090f7e9eb5ac638efaefcecaed",
        "checked": "2026-10-28",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "ECS",
      "Package": "SMD2016-4P",
      "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": "1fdd3d68782fd6d02fc79a5d4bcad9c45a3d6520c0ec9ee14d354ac6b07e641d"
    },
    "characteristics": {
      "version": 1,
      "source": "datasheet",
      "datasheet_sha256": "1fdd3d68782fd6d02fc79a5d4bcad9c45a3d6520c0ec9ee14d354ac6b07e641d",
      "rows": [
        {
          "name": "Frequency tolerance @ +25°C (decoded from P/N tolerance letter C = ±10 ppm)",
          "symbol": "",
          "kind": "tolerance",
          "unit": "ppm",
          "min": -10,
          "typ": null,
          "max": 10,
          "conditions": "@ +25°C, P/N tolerance code C",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Frequency stability (decoded from P/N stability letter K = ±10 ppm)",
          "symbol": "",
          "kind": "tolerance",
          "unit": "ppm",
          "min": -10,
          "typ": null,
          "max": 10,
          "conditions": "-20 ~ +70°C, P/N stability code K",
          "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",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Equivalent series resistance (ESR)",
          "symbol": "ESR",
          "kind": "electrical",
          "unit": "Ω",
          "min": null,
          "typ": null,
          "max": 60,
          "conditions": "Frequency 26.000 ~ 39.999 MHz (applies to 32.000 MHz)",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Operating temperature",
          "symbol": "Topr",
          "kind": "recommended_operating",
          "unit": "°C",
          "min": -20,
          "typ": null,
          "max": 70,
          "conditions": "P/N temperature code M = -20 ~ +70°C",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Storage temperature",
          "symbol": "Tstg",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": -40,
          "typ": null,
          "max": 85,
          "conditions": "",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Peak solder temperature",
          "symbol": "",
          "kind": "thermal",
          "unit": "°C",
          "min": null,
          "typ": null,
          "max": 260,
          "conditions": "Max 10 sec, 2 cycles max",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Frequency range",
          "symbol": "f",
          "kind": "electrical",
          "unit": "MHz",
          "min": 16,
          "typ": null,
          "max": 80,
          "conditions": "Family range as printed; this P/N is 320 = 32.000 MHz",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Nominal frequency (this P/N)",
          "symbol": "f",
          "kind": "electrical",
          "unit": "MHz",
          "min": null,
          "typ": 32,
          "max": null,
          "conditions": "P/N frequency code 320 = 32.000 MHz",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Load capacitance (this P/N)",
          "symbol": "CL",
          "kind": "electrical",
          "unit": "pF",
          "min": null,
          "typ": 8,
          "max": null,
          "conditions": "P/N load code 8 = 8 pF",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Shunt capacitance",
          "symbol": "Co",
          "kind": "electrical",
          "unit": "pF",
          "min": null,
          "typ": 5,
          "max": null,
          "conditions": "",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Drive level",
          "symbol": "DL",
          "kind": "electrical",
          "unit": "μW",
          "min": null,
          "typ": null,
          "max": 100,
          "conditions": "",
          "source_page": 1,
          "source": "datasheet"
        }
      ]
    }
  },
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  "discovery_triggers": [
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  "discovery_pitch": "ECS-320-8-37CKM (ECS) component page: datasheet pinout, KiCad symbol, footprint and 3D.",
  "author": {
    "name": "Ray"
  },
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}