main
Ray Set visibility: public e64f9b9 7h ago
{
  "schema_version": 1,
  "type": "component",
  "slug": "txm30m0004252lbceo00t",
  "title": "TXM30M0004252LBCEO00T",
  "brief": "Yajingxin Crystals, SMD2520-4P. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.1.0",
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  "component": {
    "mpn": "TXM30M0004252LBCEO00T",
    "manufacturer": "Yajingxin",
    "package": "SMD2520-4P",
    "pin_count": 4,
    "category": "Crystals, Oscillators, Resonators",
    "subcategory": "Crystals",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8586197943774404608",
    "parts": {
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      "model_3d_step_plain": "txm30m0004252lbceo00t.step",
      "lbr": "txm30m0004252lbceo00t.lbr"
    },
    "distributor_links": {
      "lcsc": "C284174"
    },
    "distributor_check": {
      "checked_at": "2026-10-15T14:56:07Z",
      "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",
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      },
      {
        "number": "2",
        "name": "NC",
        "type": "unconnected",
        "description": "Pad not wired to the resonator in the top-view drawing, and the datasheet states no function for it."
      },
      {
        "number": "3",
        "name": "XTAL2",
        "type": "passive",
        "description": "Crystal terminal connected to the resonator in the top-view drawing, for a 30.000000 MHz fundamental-mode crystal with 20 pF load capacitance."
      },
      {
        "number": "4",
        "name": "NC",
        "type": "unconnected",
        "description": "Pad not wired to the resonator in the top-view drawing, and the datasheet states no function for it."
      }
    ],
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      "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: The drawing shows only pins 1 and 3 wired to the crystal symbol. Pins 2 and 4 have no stated functio; The datasheet gives no pin names. XTAL1 and XTAL2 are generic labels, and the crystal terminals are ",
          "vision extraction: provenance cannot be text-verified; needs consensus"
        ],
        "pages_sent": 4,
        "cost_usd": 0.1505,
        "at": "2026-10-15T14:55:51"
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        "pages": 4,
        "sha256": "ff79cd1fa5cb8471",
        "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
      }
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      "footprint": "viewers/footprint.html"
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        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
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        "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)"
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        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
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  },
  "metadata": {
    "specs": {
      "Manufacturer": "Yajingxin",
      "Package": "SMD2520-4P",
      "Category": "Crystals, Oscillators, Resonators",
      "Pins": "4"
    },
    "characteristics": {
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      "rows": [
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          "name": "Frequency Tolerance at 25℃",
          "symbol": "",
          "kind": "tolerance",
          "unit": "ppm",
          "min": -10,
          "typ": null,
          "max": 10,
          "conditions": "at 25℃",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Stability over operation temperature",
          "symbol": "",
          "kind": "tolerance",
          "unit": "ppm",
          "min": -30,
          "typ": null,
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          "conditions": "over operating temperature range",
          "source_page": 2,
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        {
          "name": "Aging",
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          "unit": "ppm/year",
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        },
        {
          "name": "Shunt Capacitance (Co)",
          "symbol": "Co",
          "kind": "electrical",
          "unit": "pF",
          "min": 0,
          "typ": null,
          "max": 5,
          "conditions": "",
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        },
        {
          "name": "Operating Temperature Range",
          "symbol": "",
          "kind": "recommended_operating",
          "unit": "℃",
          "min": -40,
          "typ": null,
          "max": 85,
          "conditions": "",
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        },
        {
          "name": "Storage Temperature Range",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "℃",
          "min": -40,
          "typ": null,
          "max": 85,
          "conditions": "",
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        },
        {
          "name": "Average Ramp-up Rate (Ts max to Tp)",
          "symbol": "",
          "kind": "recommended_operating",
          "unit": "℃/second",
          "min": null,
          "typ": null,
          "max": 3,
          "conditions": "Pb-free assembly reflow profile",
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          "source": "datasheet"
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        {
          "name": "Ramp-down rate",
          "symbol": "",
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          "unit": "℃/second",
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        },
        {
          "name": "Time 25℃ to Peak Temperature",
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        {
          "name": "Peak/Classification Temperature (Tp)",
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          "kind": "recommended_operating",
          "unit": "℃",
          "min": null,
          "typ": null,
          "max": 260,
          "conditions": "reflow profile",
          "source_page": 3,
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        {
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        {
          "name": "Equivalent Resistance (ESR)",
          "symbol": "",
          "kind": "electrical",
          "unit": "Ω",
          "min": null,
          "typ": 35,
          "max": null,
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        {
          "name": "Insulation Resistance",
          "symbol": "",
          "kind": "electrical",
          "unit": "MΩ",
          "min": null,
          "typ": 500,
          "max": null,
          "conditions": "at DC 100V",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Load Capacitance (CL)",
          "symbol": "CL",
          "kind": "electrical",
          "unit": "pF",
          "min": null,
          "typ": 20,
          "max": null,
          "conditions": "",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Frequency (nominal)",
          "symbol": "",
          "kind": "electrical",
          "unit": "MHZ",
          "min": null,
          "typ": 30,
          "max": null,
          "conditions": "",
          "source_page": 2,
          "source": "datasheet"
        }
      ]
    }
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  "discovery_triggers": [
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  ],
  "discovery_pitch": "TXM30M0004252LBCEO00T (Yajingxin) component page: datasheet pinout, KiCad symbol, footprint and 3D.",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
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