main
Ray Set visibility: public 37c5ebb 11h ago
{
  "schema_version": 1,
  "type": "component",
  "slug": "c3sb13-521f12m13",
  "title": "C3SB13.521F12M13",
  "brief": "CJKJ 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",
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    "factory-2.0.0",
    "extractor-text"
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  "component": {
    "mpn": "C3SB13.521F12M13",
    "manufacturer": "CJKJ",
    "package": "SMD3225-4P",
    "pin_count": 4,
    "category": "Resonators/Oscillators",
    "subcategory": "Crystals",
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    "parts": {
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      "lbr": "c3sb13-521f12m13.lbr"
    },
    "distributor_links": {
      "lcsc": "C21714074"
    },
    "distributor_check": {
      "checked_at": "2026-10-22T22:14:39Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "quota"
      },
      "mouser": {
        "pn": null,
        "status": "quota"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "XTAL1",
        "type": "passive",
        "description": "Crystal terminal 1 of the 13.521270 MHz resonator, connected to the load capacitance (CL 12 pF) network."
      },
      {
        "number": "2",
        "name": "GND",
        "type": "power_in",
        "description": "Marked GND in the connection drawing; connected to the package lid/ground."
      },
      {
        "number": "3",
        "name": "XTAL2",
        "type": "passive",
        "description": "Crystal terminal 2 of the 13.521270 MHz resonator, connected to the load capacitance (CL 12 pF) network."
      },
      {
        "number": "4",
        "name": "GND",
        "type": "power_in",
        "description": "Marked GND in the connection drawing; connected to the package lid/ground."
      }
    ],
    "provenance": {
      "extractor": "extract_pins 0.3",
      "factory_chain": {
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        "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: Pin names XTAL1/XTAL2 are not printed in the datasheet. The connection drawing shows only the two GN; The datasheet does not state whether the GND pads are connected to the lid. The description is infer",
          "vision extraction: provenance cannot be text-verified; needs consensus"
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        "pages_sent": 8,
        "cost_usd": 0.2054,
        "at": "2026-10-22T22:14:13"
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        "pages": 8,
        "sha256": "dc7a13b760452c3f",
        "source_tier": "lcsc"
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      "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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        "role": "plain",
        "up": "Z",
        "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": "2026-10-22",
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      },
      {
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        "role": "eda",
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        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
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  },
  "metadata": {
    "specs": {
      "Manufacturer": "CJKJ",
      "Package": "SMD3225-4P",
      "Category": "Resonators/Oscillators",
      "Pins": "4"
    },
    "characteristics": {
      "version": 1,
      "source": "datasheet",
      "datasheet_sha256": "dc7a13b760452c3f7550df7f7519e11c8c7798c1f6876d3a589b9bc96072a523",
      "rows": [
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          "name": "Frequency tolerance at 25C",
          "symbol": "",
          "kind": "tolerance",
          "unit": "ppm",
          "min": -10,
          "typ": null,
          "max": 10,
          "conditions": "At 25℃",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Frequency stability over temperature",
          "symbol": "Topr",
          "kind": "tolerance",
          "unit": "ppm",
          "min": -30,
          "typ": null,
          "max": 30,
          "conditions": "-40 ~ 85 ℃",
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          "source": "datasheet"
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        {
          "name": "Equivalent series resistance",
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        },
        {
          "name": "Static capacitance",
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          "unit": "pF",
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          "typ": null,
          "max": 5,
          "conditions": "MAX",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Insulation resistance",
          "symbol": "Rins",
          "kind": "electrical",
          "unit": "MΩ",
          "min": 500,
          "typ": null,
          "max": null,
          "conditions": "at DC 100V",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Aging per year",
          "symbol": "",
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          "unit": "ppm",
          "min": -3,
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          "conditions": "Per year",
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        {
          "name": "Operating temperature range",
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          "kind": "recommended_operating",
          "unit": "℃",
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        {
          "name": "Storage temperature",
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          "unit": "℃",
          "min": -55,
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        {
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          "unit": "uW",
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          "conditions": "MAX 200uW",
          "source_page": 3,
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        {
          "name": "Nominal frequency",
          "symbol": "FL",
          "kind": "electrical",
          "unit": "MHz",
          "min": null,
          "typ": 13.52127,
          "max": null,
          "conditions": "Fundamental, AT cut",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Load capacitance",
          "symbol": "CL",
          "kind": "electrical",
          "unit": "pF",
          "min": null,
          "typ": 12,
          "max": null,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Weight",
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          "kind": "electrical",
          "unit": "g",
          "min": null,
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          "max": null,
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          "source_page": 3,
          "source": "datasheet"
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  "discovery_triggers": [
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  "discovery_pitch": "C3SB13.521F12M13 (CJKJ) component page: datasheet pinout, KiCad symbol, footprint and 3D.",
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    "email": "[email protected]"
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