main
Ray Set visibility: public 7ae2aa5 16d ago
{
  "schema_version": 1,
  "type": "component",
  "slug": "t491x156k050at",
  "title": "T491X156K050AT",
  "brief": "KEMET Tantalum Capacitors, CASE-X-7343-43(mm). 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",
    "capacitors",
    "t491x156k050at",
    "factory-2.0.0",
    "extractor-text"
  ],
  "component": {
    "mpn": "T491X156K050AT",
    "manufacturer": "KEMET",
    "package": "CASE-X-7343-43(mm)",
    "pin_count": 2,
    "category": "Capacitors",
    "subcategory": "Tantalum Capacitors",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588949632483536896",
    "parts": {
      "symbol": "t491x156k050at.kicad_sym",
      "footprint": "t491x156k050at.kicad_mod",
      "model_3d": "t491x156k050at-hero.glb",
      "model_3d_plain": "t491x156k050at-etched.glb",
      "model_3d_step": "t491x156k050at-etched.step",
      "model_3d_step_plain": "t491x156k050at.step",
      "lbr": "t491x156k050at.lbr"
    },
    "distributor_links": {
      "lcsc": "C561858",
      "digikey": "399-8411-2-ND",
      "mouser": "80-T491X156K050"
    },
    "distributor_check": {
      "checked_at": "2026-10-15T06:39:04Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "399-8411-2-ND",
        "status": "found",
        "lifecycle": "Active"
      },
      "mouser": {
        "pn": "80-T491X156K050",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "ANODE (+)",
        "type": "passive",
        "description": "Positive termination, identified on the body by a polarity stripe and sometimes a beveled edge; transient reverse voltage is limited to 15% of rated voltage at 25°C, 5% at 85°C and 1% at 125°C, and the part should not be operated continuously in reverse."
      },
      {
        "number": "2",
        "name": "CATHODE (-)",
        "type": "passive",
        "description": "Negative termination (leadframe marked as the cathode); the datasheet says solid tantalum capacitors are polar and may be permanently damaged or destroyed if connected with the wrong polarity."
      }
    ],
    "provenance": {
      "extractor": "extract_pins 0.3",
      "factory_chain": {
        "factory": "2.0.0",
        "extractor": "extract_pins 0.3",
        "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 does not print pin numbers for this two-terminal chip capacitor. Numbers '1' (anode, +; MPN T491X156K050AT maps to the X/7343-43 case (row '50 15 X/7343-43 T491X156(1)050A(2)', page 9 tabl",
          "1/2 pins cited to the wrong page (name found elsewhere): ['1:ANODE (+)@p15']"
        ],
        "pages_sent": 23,
        "cost_usd": 0.1675,
        "at": "2026-10-15T06:38:47"
      },
      "datasheet": {
        "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588949632483536896",
        "pages": 23,
        "sha256": "271b6cea80c8b55f",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 2,
        "described": 2,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
      {
        "file": "t491x156k050at.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          7.6,
          4.6,
          4.3
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "6df0b66df244026544264f9a5fd03c989c2dc4c86a42c5fef64c730425f0fd9a",
        "checked": "2026-10-15",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "t491x156k050at-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          7.6,
          4.6,
          4.3
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "f09283ccbf7ba3f2915a76c4c5261f76b09bcedc0f19b87d67626731ef91f6fa",
        "checked": "2026-10-15",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "KEMET",
      "Package": "CASE-X-7343-43(mm)",
      "Category": "Capacitors",
      "Pins": "2"
    },
    "characteristics": {
      "version": 1,
      "source": "datasheet",
      "datasheet_sha256": "271b6cea80c8b55fcdca2275c43963c1617aa5e79ac31efd226f86e6c24b3f08",
      "rows": [
        {
          "name": "DC leakage current",
          "symbol": "",
          "kind": "electrical",
          "unit": "µA",
          "min": null,
          "typ": null,
          "max": 7.5,
          "conditions": "at +20°C, maximum/5 minutes",
          "source_page": 13,
          "source": "datasheet"
        },
        {
          "name": "Dissipation factor",
          "symbol": "DF",
          "kind": "electrical",
          "unit": "%",
          "min": null,
          "typ": null,
          "max": 8,
          "conditions": "at +20°C, 120 Hz",
          "source_page": 13,
          "source": "datasheet"
        },
        {
          "name": "Equivalent series resistance",
          "symbol": "ESR",
          "kind": "electrical",
          "unit": "Ω",
          "min": null,
          "typ": null,
          "max": 0.7,
          "conditions": "at +20°C, 100 kHz",
          "source_page": 13,
          "source": "datasheet"
        },
        {
          "name": "Maximum allowable ripple current (rms)",
          "symbol": "",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": null,
          "max": 486,
          "conditions": "100 kHz, +25°C",
          "source_page": 13,
          "source": "datasheet"
        },
        {
          "name": "Maximum allowable ripple current (rms)",
          "symbol": "",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": null,
          "max": 437,
          "conditions": "100 kHz, +85°C",
          "source_page": 13,
          "source": "datasheet"
        },
        {
          "name": "Maximum allowable ripple current (rms)",
          "symbol": "",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": null,
          "max": 194,
          "conditions": "100 kHz, +125°C",
          "source_page": 13,
          "source": "datasheet"
        },
        {
          "name": "Capacitance tolerance (K)",
          "symbol": "",
          "kind": "tolerance",
          "unit": "%",
          "min": -10,
          "typ": null,
          "max": 10,
          "conditions": "K tolerance (±10%)",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Capacitance change with temperature, −55°C",
          "symbol": "ΔC/C",
          "kind": "temperature_coefficient",
          "unit": "%",
          "min": -10,
          "typ": null,
          "max": 10,
          "conditions": "Temperature stability, reference +25°C initial limit",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Capacitance change with temperature, +85°C",
          "symbol": "ΔC/C",
          "kind": "temperature_coefficient",
          "unit": "%",
          "min": -10,
          "typ": null,
          "max": 10,
          "conditions": "Temperature stability, reference +25°C initial limit",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Capacitance change with temperature, +125°C",
          "symbol": "ΔC/C",
          "kind": "temperature_coefficient",
          "unit": "%",
          "min": -20,
          "typ": null,
          "max": 20,
          "conditions": "Temperature stability, reference +25°C initial limit",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Rated voltage (DC)",
          "symbol": "VR",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 50,
          "conditions": "VDC at 85°C",
          "source_page": 13,
          "source": "datasheet"
        },
        {
          "name": "Operating temperature range",
          "symbol": "",
          "kind": "recommended_operating",
          "unit": "°C",
          "min": -55,
          "typ": null,
          "max": 125,
          "conditions": "Operating temperature range",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Recommended maximum application voltage",
          "symbol": "",
          "kind": "recommended_operating",
          "unit": "% of VR",
          "min": null,
          "typ": null,
          "max": 50,
          "conditions": "−55°C to 85°C",
          "source_page": 14,
          "source": "datasheet"
        },
        {
          "name": "Recommended maximum application voltage",
          "symbol": "",
          "kind": "recommended_operating",
          "unit": "% of VR",
          "min": null,
          "typ": null,
          "max": 33,
          "conditions": "85°C to 125°C",
          "source_page": 14,
          "source": "datasheet"
        },
        {
          "name": "Maximum power dissipation",
          "symbol": "Pmax",
          "kind": "thermal",
          "unit": "mW",
          "min": null,
          "typ": null,
          "max": 165,
          "conditions": "at 25°C w/+20°C rise, case X 7343-43",
          "source_page": 14,
          "source": "datasheet"
        },
        {
          "name": "Endurance capacitance change",
          "symbol": "ΔC/C",
          "kind": "tolerance",
          "unit": "%",
          "min": -10,
          "typ": null,
          "max": 10,
          "conditions": "85°C at rated voltage, 2,000 hours; 125°C at 2/3 rated voltage, 2,000 hours",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Storage life capacitance change",
          "symbol": "ΔC/C",
          "kind": "tolerance",
          "unit": "%",
          "min": -10,
          "typ": null,
          "max": 10,
          "conditions": "125°C at 0 volts, 2,000 hours",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Thermal shock capacitance change",
          "symbol": "ΔC/C",
          "kind": "tolerance",
          "unit": "%",
          "min": -5,
          "typ": null,
          "max": 5,
          "conditions": "MIL-STD-202, Method 107, Condition B, −55°C to 125°C, 1,000 cycles",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Surge voltage capacitance change",
          "symbol": "ΔC/C",
          "kind": "tolerance",
          "unit": "%",
          "min": -5,
          "typ": null,
          "max": 5,
          "conditions": "85°C, 1.32 x rated voltage, 1,000 cycles (125°C, 1.2 x rated voltage)",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Mechanical shock/vibration capacitance change",
          "symbol": "ΔC/C",
          "kind": "tolerance",
          "unit": "%",
          "min": -10,
          "typ": null,
          "max": 10,
          "conditions": "MIL-STD-202, Method 213, Condition I, 100 G peak; Method 204, Condition D, 10 Hz to 2,000 Hz, 20 G peak",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Rated capacitance",
          "symbol": "C",
          "kind": "electrical",
          "unit": "µF",
          "min": null,
          "typ": 15,
          "max": null,
          "conditions": "",
          "source_page": 13,
          "source": "datasheet"
        }
      ]
    }
  },
  "variants": [],
  "sections": [
    "hero",
    "viewers",
    "readme",
    "breadcrumbs",
    "info"
  ],
  "discovery_triggers": [
    "t491x156k050at"
  ],
  "discovery_pitch": "T491X156K050AT (KEMET) component page: datasheet pinout, KiCad symbol, footprint and 3D.",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
  },
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "t491x156k050at.kicad_sym",
    "t491x156k050at.kicad_mod",
    "t491x156k050at.glb",
    "t491x156k050at.step",
    "t491x156k050at.lbr",
    "docs/hero.png",
    "docs/t491x156k050at-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "t491x156k050at-hero.glb",
    "t491x156k050at-hero.overlay.json",
    "t491x156k050at-etched.glb"
  ],
  "visibility": {
    "public": true
  }
}