main
Ray Set visibility: public 099b0ed
{
  "schema_version": 1,
  "type": "component",
  "slug": "ecs-txo-2520-33-240-an-tr",
  "title": "ECS-TXO-2520-33-240-AN-TR",
  "brief": "ECS Temperature Compensated Crystal Oscillators (TCXO), SMD2520-4P. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
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  "license": "CC-BY-SA-4.0",
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    "manufacturer": "ECS",
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    "category": "Crystals, Oscillators, Resonators",
    "subcategory": "Temperature Compensated Crystal Oscillators (TCXO)",
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      "lcsc": "C2451215",
      "digikey": "XC2257TR-ND",
      "mouser": "520-T2520-33-240-ANT"
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    "distributor_check": {
      "checked_at": "2026-10-14T21:14:41Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "XC2257TR-ND",
        "status": "found",
        "lifecycle": "Active"
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      "mouser": {
        "pn": "520-T2520-33-240-ANT",
        "status": "found"
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      {
        "number": "1",
        "name": "Tri-state",
        "type": "input",
        "description": "Tri-state control: output is active when this pin is high or not connected, and low disables the output to Hi-Z."
      },
      {
        "number": "2",
        "name": "Gnd",
        "type": "power_in",
        "description": "Ground connection for the TCXO."
      },
      {
        "number": "3",
        "name": "Output",
        "type": "output",
        "description": "HCMOS clock output with VOL max 10% Vdd and VOH min 90% Vdd, specified for a 15 pF load with 5 ns rise and fall time."
      },
      {
        "number": "4",
        "name": "Vdd",
        "type": "power_in",
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      }
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      "factory_chain": {
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        "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 lists the pad connections as 'PAD CONNECTIONS 1 Tri-state, 2 Gnd, 3 Output, 4 Vdd' on ; Pin 1 is typed as 'input' because it is a tri-state enable control. The datasheet does not give its "
        ],
        "pages_sent": 2,
        "cost_usd": 0.0148,
        "at": "2026-10-14T21:14:27"
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      "datasheet": {
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        "pages": 2,
        "sha256": "ff95b59ff8d90046",
        "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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        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
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          2,
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        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "cd0c53e8a35a3cb36fc18e5248a2acf382b94b62d156b7bb9cc398eef3e21c4a",
        "checked": "2026-10-14",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
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      {
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        "sha256": "fc70f648bf0b64e5b3bf270089ad2371067e8e984b1786f833da41e79ea6d33c",
        "checked": "2026-10-14",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
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  },
  "metadata": {
    "specs": {
      "Manufacturer": "ECS",
      "Package": "SMD2520-4P",
      "Category": "Crystals, Oscillators, Resonators",
      "Pins": "4"
    },
    "characteristics": {
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          "unit": "MHz",
          "min": 3.2,
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          "max": 55,
          "conditions": "",
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        {
          "name": "Frequency Tolerance at +25°C",
          "symbol": "",
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          "name": "Frequency Stability vs. Temperature",
          "symbol": "",
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          "conditions": "Vs. Temp (-40 ~ +85°C); suffix A = ±2.5 ppm",
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        {
          "name": "Frequency Change vs. Voltage",
          "symbol": "",
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          "max": 0.2,
          "conditions": "Voltage Change Vdd ±5%",
          "source_page": 1,
          "source": "datasheet"
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        {
          "name": "Frequency Change vs. Load",
          "symbol": "",
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        {
          "name": "Frequency Aging",
          "symbol": "",
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          "name": "Supply Voltage Tolerance",
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          "source_page": 1,
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          "name": "Duty Cycle",
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          "min": 45,
          "typ": null,
          "max": 55,
          "conditions": "@ ½ Vdd",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Current Consumption (+3.3V, 20.1~30 MHz band)",
          "symbol": "",
          "kind": "electrical",
          "unit": "mA",
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          "source_page": 1,
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        },
        {
          "name": "Output Low Voltage Level",
          "symbol": "VOL",
          "kind": "electrical",
          "unit": "%Vdd",
          "min": null,
          "typ": null,
          "max": 10,
          "conditions": "10%Vdd max.",
          "source_page": 1,
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        },
        {
          "name": "Output High Voltage Level",
          "symbol": "VOH",
          "kind": "electrical",
          "unit": "%Vdd",
          "min": 90,
          "typ": null,
          "max": null,
          "conditions": "90%Vdd min.",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Operating Temperature Range",
          "symbol": "",
          "kind": "recommended_operating",
          "unit": "°C",
          "min": -40,
          "typ": null,
          "max": 85,
          "conditions": "Part code N = -40 ~ +85°C",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Peak Solder Temperature",
          "symbol": "",
          "kind": "thermal",
          "unit": "°C",
          "min": null,
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          "max": 260,
          "conditions": "Peak solder temp; 10 sec max; 2 cycles max",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Nominal Frequency",
          "symbol": "",
          "kind": "electrical",
          "unit": "MHz",
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          "typ": 24,
          "max": null,
          "conditions": "Part code 240 = 24.000 MHz",
          "source_page": 2,
          "source": "datasheet"
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          "name": "Supply Voltage",
          "symbol": "Vdd",
          "kind": "recommended_operating",
          "unit": "V DC",
          "min": null,
          "typ": 3.3,
          "max": null,
          "conditions": "Part code 33 = +3.3V",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Standby Current",
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          "kind": "electrical",
          "unit": "µA",
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          "max": null,
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        },
        {
          "name": "Rise & Fall Time",
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          "kind": "timing",
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          "min": null,
          "typ": 5,
          "max": null,
          "conditions": "10%Vdd – 90%Vdd",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Phase Noise",
          "symbol": "",
          "kind": "electrical",
          "unit": "dBc/Hz",
          "min": null,
          "typ": -145,
          "max": null,
          "conditions": "@ 10 KHz offset",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Output Load Capacitance",
          "symbol": "",
          "kind": "electrical",
          "unit": "pF",
          "min": null,
          "typ": 15,
          "max": null,
          "conditions": "Output HCMOS",
          "source_page": 1,
          "source": "datasheet"
        }
      ]
    }
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  "author": {
    "name": "Ray"
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