ECS-320-8-37B-CTN-TR

{
  "schema_version": 1,
  "type": "component",
  "slug": "ecs-320-8-37b-ctn-tr",
  "title": "ECS-320-8-37B-CTN-TR",
  "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": [
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    "crystal oscillator-oscillator-resonator",
    "ecs-320-8-37b-ctn-tr",
    "factory-2.0.0",
    "extractor-text"
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  "component": {
    "mpn": "ECS-320-8-37B-CTN-TR",
    "manufacturer": "ECS",
    "package": "SMD2016-4P",
    "pin_count": 4,
    "category": "Crystal Oscillator/Oscillator/Resonator",
    "subcategory": "Crystals",
    "datasheet": "https://datasheet.lcsc.com/datasheet/pdf/3785d03b60e10912baf0d4c0be5f784c.pdf",
    "parts": {
      "symbol": "ecs-320-8-37b-ctn-tr.kicad_sym",
      "footprint": "ecs-320-8-37b-ctn-tr.kicad_mod",
      "model_3d": "ecs-320-8-37b-ctn-tr-hero.glb",
      "model_3d_plain": "ecs-320-8-37b-ctn-tr-etched.glb",
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      "lbr": "ecs-320-8-37b-ctn-tr.lbr"
    },
    "distributor_links": {
      "lcsc": "C2596809",
      "digikey": "50-ECS-320-8-37B-CTN-TR-ND",
      "mouser": "520-ECS-320837BCTNTR"
    },
    "distributor_check": {
      "checked_at": "2026-10-30T23:36:10Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "50-ECS-320-8-37B-CTN-TR-ND",
        "status": "found",
        "lifecycle": "Active"
      },
      "mouser": {
        "pn": "520-ECS-320837BCTNTR",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "In/Out",
        "type": "passive",
        "description": "Crystal terminal (In/Out) on the symmetrical crystal; pads 1 and 3 are interchangeable, so either may serve as input or output."
      },
      {
        "number": "2",
        "name": "Gnd",
        "type": "power_in",
        "description": "Ground connection (Gnd) pad per the datasheet pad connections table."
      },
      {
        "number": "3",
        "name": "Out/In",
        "type": "passive",
        "description": "Crystal terminal (Out/In) on the symmetrical crystal; pads 1 and 3 are interchangeable, so either may serve as output or input."
      },
      {
        "number": "4",
        "name": "Gnd",
        "type": "power_in",
        "description": "Ground connection (Gnd) pad per the datasheet pad connections table."
      }
    ],
    "provenance": {
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      "factory_chain": {
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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 covers the ECX-1637B family and its 2.0 x 1.6 mm footprint; it does not print the name; Pads 1 and 3 are typed passive because the datasheet labels them only In/Out and Out/In and states t; The datasheet notes the chamfer on the bottom pad has no electrical significance; this is not a pin "
        ],
        "pages_sent": 2,
        "cost_usd": 0.0153,
        "at": "2026-10-30T23:36:02"
      },
      "datasheet": {
        "url": "https://datasheet.lcsc.com/datasheet/pdf/3785d03b60e10912baf0d4c0be5f784c.pdf",
        "pages": 2,
        "sha256": "c3676bf496b29153",
        "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"
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        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
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          1.6,
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        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "eea7262e5781943394ac3ed4f9d076ea60a9856fdf5911f6ab502d1fcc1b0836",
        "checked": "2026-10-30",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
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        "sha256": "6b4a5411d05b1bf152528fb4d446b8356581c2ab8b2d48a58afe1b823b2fde0a",
        "checked": "2026-10-30",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "ECS",
      "Package": "SMD2016-4P",
      "Category": "Crystal Oscillator/Oscillator/Resonator",
      "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": "c3676bf496b291531f92b79e95caed4590a5b162a405a5f7e64426d0fd987f52"
    },
    "characteristics": {
      "version": 1,
      "source": "datasheet",
      "datasheet_sha256": "c3676bf496b291531f92b79e95caed4590a5b162a405a5f7e64426d0fd987f52",
      "rows": [
        {
          "name": "Frequency range",
          "symbol": "f",
          "kind": "electrical",
          "unit": "MHz",
          "min": 16,
          "typ": null,
          "max": 96,
          "conditions": "",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Frequency tolerance",
          "symbol": "",
          "kind": "tolerance",
          "unit": "ppm",
          "min": -10,
          "typ": null,
          "max": 10,
          "conditions": "@ +25°C (C option)",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Aging (first year)",
          "symbol": "",
          "kind": "tolerance",
          "unit": "ppm",
          "min": -1,
          "typ": null,
          "max": 1,
          "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": 50,
          "conditions": "24.000 ~ 39.999 MHz range",
          "source_page": 1,
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        },
        {
          "name": "Storage temperature",
          "symbol": "Tstg",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": -55,
          "typ": null,
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          "conditions": "",
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        {
          "name": "Peak solder temperature",
          "symbol": "",
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          "min": null,
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          "max": 260,
          "conditions": "Max 10 sec; 2 cycles max",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Load capacitance",
          "symbol": "CL",
          "kind": "electrical",
          "unit": "pF",
          "min": null,
          "typ": 8,
          "max": null,
          "conditions": "Specify in P/N",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Shunt capacitance",
          "symbol": "Co",
          "kind": "electrical",
          "unit": "pF",
          "min": null,
          "typ": 3,
          "max": null,
          "conditions": "",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Drive level",
          "symbol": "DL",
          "kind": "electrical",
          "unit": "μW",
          "min": null,
          "typ": 100,
          "max": null,
          "conditions": "",
          "source_page": 1,
          "source": "datasheet"
        }
      ]
    }
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  "discovery_triggers": [
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  "discovery_pitch": "ECS-320-8-37B-CTN-TR (ECS) component page: datasheet pinout, KiCad symbol, footprint and 3D.",
  "author": {
    "name": "Ray"
  },
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