CJ15-160000810A20

{
  "schema_version": 1,
  "type": "component",
  "slug": "cj15-160000810a20",
  "title": "CJ15-160000810A20",
  "brief": "Changjing Crystals, SMD2520-4P. 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",
    "cj15-160000810a20",
    "factory-2.0.0",
    "extractor-text"
  ],
  "component": {
    "mpn": "CJ15-160000810A20",
    "manufacturer": "Changjing",
    "package": "SMD2520-4P",
    "pin_count": 4,
    "category": "Crystals, Oscillators, Resonators",
    "subcategory": "Crystals",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8590913465933000704",
    "parts": {
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      "footprint": "cj15-160000810a20.kicad_mod",
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      "model_3d_plain": "cj15-160000810a20-etched.glb",
      "model_3d_step": "cj15-160000810a20-etched.step",
      "model_3d_step_plain": "cj15-160000810a20.step",
      "lbr": "cj15-160000810a20.lbr"
    },
    "distributor_links": {
      "lcsc": "C2875244"
    },
    "distributor_check": {
      "checked_at": "2026-10-15T12:10:05Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "no match"
      },
      "mouser": {
        "pn": null,
        "status": "no match"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "XTAL1",
        "type": "passive",
        "description": "Crystal terminal (chamfered pad, bottom-right in bottom view) wired to the crystal symbol; 16.000MHz fundamental mode, 8pF load capacitance, 100ohms max resonance resistance."
      },
      {
        "number": "2",
        "name": "NC",
        "type": "unconnected",
        "description": "Pad not wired to the crystal symbol in the bottom-view drawing; no function is stated in the datasheet."
      },
      {
        "number": "3",
        "name": "XTAL2",
        "type": "passive",
        "description": "Second crystal terminal (top-left in bottom view) wired to the crystal symbol; 16.000MHz fundamental mode, drive level <100µW."
      },
      {
        "number": "4",
        "name": "NC",
        "type": "unconnected",
        "description": "Pad not wired to the crystal symbol in the bottom-view drawing; no function is stated in the datasheet."
      }
    ],
    "provenance": {
      "extractor": "extract_pins 0.3",
      "factory_chain": {
        "factory": "2.0.0",
        "extractor": "extract_pins 0.3",
        "primary_model": "claude-sonnet-5-5",
        "primary_mode": "text+vision",
        "consensus_model": "claude-opus-5-5",
        "consensus": "agreed",
        "guards": "pin_guards 0.1: passed",
        "guard_notes": [
          "extractor flagged: The bottom-view drawing shows the crystal symbol connected only to pads 1 and 3 (the chamfered pad i",
          "vision extraction: provenance cannot be text-verified; needs consensus"
        ],
        "pages_sent": 8,
        "cost_usd": 0.1841,
        "at": "2026-10-15T12:09:49"
      },
      "datasheet": {
        "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8590913465933000704",
        "pages": 8,
        "sha256": "081e56fd9940f252",
        "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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        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
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          2,
          0.83
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "cd0c53e8a35a3cb36fc18e5248a2acf382b94b62d156b7bb9cc398eef3e21c4a",
        "checked": "2026-10-15",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "cj15-160000810a20-etched.step",
        "role": "eda",
        "up": "Z",
        "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": "d0ffab453a446a681897c7ee39365acd92fe39d2e22c1170926d2c06ba2df4d6",
        "checked": "2026-10-15",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "Changjing",
      "Package": "SMD2520-4P",
      "Category": "Crystals, Oscillators, Resonators",
      "Pins": "4"
    },
    "characteristics": {
      "version": 1,
      "source": "datasheet",
      "datasheet_sha256": "081e56fd9940f2529c57acec0ac3c5c99f647c14854510b71bfd3de659c91261",
      "rows": [
        {
          "name": "Frequency tolerance",
          "symbol": "Δf/f",
          "kind": "tolerance",
          "unit": "ppm",
          "min": -10,
          "typ": null,
          "max": 10,
          "conditions": "",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Frequency temperature stability",
          "symbol": "",
          "kind": "tolerance",
          "unit": "ppm",
          "min": -20,
          "typ": null,
          "max": 20,
          "conditions": "",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Aging",
          "symbol": "ΔfA",
          "kind": "tolerance",
          "unit": "ppm per Year",
          "min": -3,
          "typ": null,
          "max": 3,
          "conditions": "",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Resonance resistance",
          "symbol": "",
          "kind": "electrical",
          "unit": "ohms",
          "min": null,
          "typ": null,
          "max": 100,
          "conditions": "",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Shunt capacitance",
          "symbol": "C0",
          "kind": "electrical",
          "unit": "pF",
          "min": null,
          "typ": null,
          "max": 2,
          "conditions": "",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Drive level",
          "symbol": "DL",
          "kind": "electrical",
          "unit": "μW",
          "min": null,
          "typ": null,
          "max": 100,
          "conditions": "",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Insulation resistance",
          "symbol": "IR",
          "kind": "electrical",
          "unit": "M ohms",
          "min": 500,
          "typ": null,
          "max": null,
          "conditions": "",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Operating temperature range",
          "symbol": "TOPR",
          "kind": "recommended_operating",
          "unit": "°C",
          "min": -20,
          "typ": null,
          "max": 70,
          "conditions": "",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Storage temperature range",
          "symbol": "TSTG",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": -55,
          "typ": null,
          "max": 125,
          "conditions": "",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Nominal frequency",
          "symbol": "f",
          "kind": "electrical",
          "unit": "MHz",
          "min": null,
          "typ": 16,
          "max": null,
          "conditions": "",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Load capacitance",
          "symbol": "CL",
          "kind": "electrical",
          "unit": "pF",
          "min": null,
          "typ": 8,
          "max": null,
          "conditions": "",
          "source_page": 2,
          "source": "datasheet"
        }
      ]
    }
  },
  "variants": [],
  "sections": [
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  "discovery_triggers": [
    "cj15-160000810a20"
  ],
  "discovery_pitch": "CJ15-160000810A20 (Changjing) component page: datasheet pinout, KiCad symbol, footprint and 3D.",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
  },
  "dependencies": {},
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    "path": "docs/hero.png"
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  "visibility": {
    "public": true
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}