EEEFK1A121SR

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  "type": "component",
  "slug": "eeefk1a121sr",
  "title": "EEEFK1A121SR",
  "brief": "PANASONIC Aluminum Electrolytic Capacitors - SMD, SMD,D5xL5.8mm. Polarised capacitor: pin 1 is + by the KiCad polarised-footprint convention, KiCad symbol/footprint/3D.",
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    "manufacturer": "PANASONIC",
    "package": "CP_Elec_5x5.8",
    "pin_count": 2,
    "category": "Capacitors",
    "subcategory": "Aluminum Electrolytic Capacitors - SMD",
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      "lbr": "eeefk1a121sr.lbr"
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    "distributor_links": {
      "lcsc": "C336771"
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        "status": "quota"
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      {
        "number": "1",
        "name": "+",
        "type": "passive",
        "description": "Positive terminal; pad 1 of the KiCad polarised-capacitor footprint (CP_, pad 1 = +), where the symbol and the 3D model mark the + end."
      },
      {
        "number": "2",
        "name": "-",
        "type": "passive",
        "description": "Negative terminal."
      }
    ],
    "provenance": {
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      "factory_chain": {
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        "extractor": "extract_pins",
        "primary_model": "two-terminal convention",
        "primary_mode": "convention",
        "consensus_model": null,
        "consensus": "agreed",
        "guards": "pin_guards 0.1: passed",
        "guard_notes": [
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        "cost_usd": 0.0013,
        "at": "2026-11-06T15:25:00"
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      "datasheet": {
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        "pages": 2,
        "sha256": "9686dd1ffdec3d4a",
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      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 2,
        "described": 2,
        "cites_pages": true,
        "refuses_to_fabricate": true
      },
      "correction": {
        "at": "2026-11-09T22:19:32Z",
        "what": "pins 1/2 \"unpolarised, either orientation\" -> 1 = +, 2 = -",
        "how": "fix_polarity.py: symbol +, footprint polarity mark and 3D marked end all at pin 1"
      }
    },
    "viewers": {
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      "footprint": "viewers/footprint.html"
    },
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        "units": "mm",
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        "seat": "z = 0",
        "extents_mm": [
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        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "5414c273194f54a33329a3f60fb4ebf8865cbe638d1d873ccbabcca6cc4c243c",
        "checked": "2026-11-06",
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      },
      {
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        "units": "mm",
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    "package_dims": {
      "package_code": "C (5 x 5.8, size code C)",
      "source_page": 1,
      "D": {
        "nom_mm": 5.3,
        "range_mm": [
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          null
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      },
      "E1": {
        "nom_mm": 5,
        "range_mm": [
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      "E": {
        "nom_mm": 6.5,
        "range_mm": [
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      },
      "A": {
        "nom_mm": 5.8,
        "range_mm": [
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          null
        ]
      },
      "source": "datasheet package drawing, every number found on its page (extract_pins --task dims)",
      "model_check": {
        "file": "eeefk1a121sr.step",
        "verdict": "PASS",
        "reasons": [
          "height and body within the datasheet's package drawing"
        ],
        "by": "factory/package_fit.py"
      }
    },
    "polarized": true,
    "polarity": {
      "positive_pin": "1",
      "basis": "KiCad CP_ footprint convention; symbol, footprint and 3D mark checked"
    }
  },
  "metadata": {
    "specs": {
      "Manufacturer": "PANASONIC",
      "Package": "CP_Elec_5x5.8",
      "Category": "Capacitors",
      "Pins": "2"
    },
    "characteristics": {
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          "name": "Capacitance tolerance",
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          "kind": "tolerance",
          "unit": "%",
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          "typ": null,
          "max": 20,
          "conditions": "120 Hz/+20 °C",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Capacitance change after endurance",
          "symbol": "",
          "kind": "tolerance",
          "unit": "%",
          "min": -30,
          "typ": null,
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          "conditions": "After 2000 h at +105 °C ±2 °C at rated voltage, then stabilized at +20 °C",
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        {
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          "source_page": 1,
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        },
        {
          "name": "Capacitance change after resistance to soldering heat",
          "symbol": "",
          "kind": "tolerance",
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          "min": -10,
          "typ": null,
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          "conditions": "After reflow soldering, then stabilized at +20 °C",
          "source_page": 1,
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        },
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          "name": "DC leakage current",
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        },
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          "symbol": "Z(-25 °C)/Z(+20 °C)",
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          "unit": "",
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        {
          "name": "Impedance ratio Z(-40 °C)/Z(+20 °C)",
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          "unit": "",
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          "source_page": 1,
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        },
        {
          "name": "Category temperature range",
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        {
          "name": "ESR",
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          "typ": 0.7,
          "max": null,
          "conditions": "100 kHz, +20 °C",
          "source_page": 2,
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        },
        {
          "name": "Ripple current",
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          "kind": "electrical",
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          "typ": 160,
          "max": null,
          "conditions": "100 kHz, +105 °C",
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          "source": "datasheet"
        }
      ]
    }
  },
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  "discovery_triggers": [
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  "discovery_pitch": "EEEFK1A121SR (PANASONIC) component page: datasheet pinout, KiCad symbol, footprint and 3D.",
  "author": {
    "name": "Ray"
  },
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  "visibility": {
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  "updated_at": "2026-11-09T22:19:36.420Z",
  "description": "PANASONIC Aluminum Electrolytic Capacitors - SMD, SMD,D5xL5.8mm. Polarised capacitor: pin 1 is + by the KiCad polarised-footprint convention, KiCad symbol/footprint/3D.",
  "org": "adom"
}