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T491A475K020ATAUTO

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KEMET Tantalum Capacitors, 1206. Unpolarised two-terminal part: the datasheet prints no pin numbers, so pins 1 and 2 follow the library convention, KiCad symbol/footprint/3D.

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T491A475K020ATAUTO

KEMET · Tantalum Capacitors · 1206

T491A475K020ATAUTO from KEMET, in a 1206. Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.

Pinout

Pin Name Type Function
1 1 passive Terminal 1 of an unpolarised capacitor; either orientation.
2 2 passive Terminal 2 of an unpolarised capacitor; either orientation.

Key specifications

Parameter Value
Manufacturer KEMET
Package 1206
Category Capacitors
Pins 2

Electrical characteristics

Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).

Parameter Symbol Min Typ Max Unit Conditions Page
Operating temperature range -55 125 °C 2
Capacitance tolerance (K = ±10%) -10 10 % Part suffix K 2
Rated capacitance 4.7 µF 120 Hz/25°C 7
Rated voltage (DC) 20 V VDC at 85°C 7
DC leakage current 0.9 µA +25°C, maximum at 5 min 7
Dissipation factor (DF) 6 % +25°C, 120 Hz 7
Equivalent series resistance (ESR) 4 Ω +25°C, 100 kHz 7
Maximum power dissipation (case A) Pmax 75 mW Case A (3216-18), at 25°C with +20°C rise 10
Recommended maximum application voltage VR 50 % of VR −55°C to 85°C 10
Recommended maximum application voltage VR 33 % of VR 85°C to 125°C 10
Temperature stability ΔC/C -10 10 % Change vs +25°C initial limit, at −55°C 3
Temperature stability ΔC/C -20 20 % Change vs +25°C initial limit, at +125°C 3
Temperature stability DF 1.5 x IL At +85°C, relative to initial limit 3
Temperature stability DC leakage 10 x IL At +85°C, relative to initial limit 3
Temperature stability DC leakage 12 x IL At +125°C, relative to initial limit 3
Endurance ΔC/C -10 10 % 85°C at rated voltage, 2,000 hours (change vs initial value) 3
Endurance DC leakage 1.25 x initial limit Endurance 85°C at rated voltage, 2,000 hours 3
Storage life ΔC/C -10 10 % 125°C at 0 volts, 2,000 hours (change vs initial value) 3
Storage life DC leakage 1.25 x initial limit Storage life 125°C at 0 volts, 2,000 hours 3
Thermal shock ΔC/C -5 5 % MIL-STD-202 Method 107 Cond. B, −55°C to 125°C, 1,000 cycles 3
Surge voltage multiplier 1.32 x rated voltage 85°C, 1,000 cycles 3
Surge voltage multiplier 1.2 x rated voltage 125°C, 1,000 cycles 3
Surge ΔC/C -5 5 % Surge voltage test, 1,000 cycles (change vs initial value) 3
Mechanical shock/vibration ΔC/C -10 10 % MIL-STD-202 Method 213 Cond. I and Method 204 Cond. D 3

Materials and finish

As the datasheet states them (page.json metadata.appearance; the 3D model's colours follow it).

Part Material Colour / plating Datasheet says Page
contacts gold solder systems. Tin/lead (Sn/Pb) terminations are available upon request for any part number. Gold-plated terminations 1

CAD (KiCad official)

  • Symbol: T491A475K020ATAUTO
  • Footprint: Capacitor_SMD:C_1206_3216Metric
  • 3D model: 1206 (KiCad packages3D, STEP)
  • 3D model files: t491a475k020atauto-etched.step / t491a475k020atauto-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); t491a475k020atauto.step / t491a475k020atauto.glb are the bare package body.

Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

  • Datasheet: KEMET datasheet (19 pp, sha256 62e54a90852581a2, retrieved 2026-10-21, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins, primary two-terminal convention (convention), consensus off (agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish.
  • CAD: KiCad official libraries (CC-BY-SA 4.0).

Datasheet PDF