RKS1D101MCNAFEGS

The RKS1D101MCNAFEGS is a surface-mount conductive polymer aluminum electrolytic capacitor delivering 100 µF at a 20 V rating in a compact φ6.3 × 5.8 mm SMD can. It combines low ESR and high allowable ripple current with long high-temperature endurance for compact power designs.

Designed for demanding power-management roles, this capacitor addresses high-frequency decoupling and bulk smoothing needs where low loss, high ripple capability and extended lifetime at elevated ambient temperatures are required.

Key Features

• Capacitance & Voltage — 100 µF nominal capacitance with a 20 V rated working voltage and tolerance of −20% to +20%.
• Low ESR & High-frequency Performance — ESR of 50 mΩ specified at 100 kHz and a high-frequency ripple rating of 900 mA (300 kHz), enabling efficient handling of switching ripple in high-frequency power circuits.
• Low-frequency Ripple & Leakage — Rated low-frequency ripple current of 90 mA at 120 Hz and a maximum leakage current of 100 µA, useful for bulk filtering and standby energy storage.
• Thermal Range & Endurance — Operating temperature −55 °C to +125 °C with a load life of 3000 hours at 125 °C, supporting extended operation in high-temperature environments.
• Loss Tangent (tan δ) — tan δ of 0.12 measured at 20 °C, 120 Hz, enabling predictable dissipation characteristics for thermal design.
• Package & Mounting — Radial SMD can in φ6.3 × 5.8 mm size; recommended land pattern 6.6 × 6.6 mm. Supplied in embossed carrier tape with moisture-proof packing for pick-and-place assembly.
• Reflow Compatibility — Compatible with lead‑free reflow peak temperatures up to 260 °C per soldering heat specifications for standard SMD assembly processes.
• RoHS Compliant — Conforms to RoHS requirements.

Typical Applications

• Power Supply Output Filtering — Bulk smoothing and output decoupling for DC‑DC converters where low ESR and high ripple capability reduce voltage ripple and improve regulator stability.
• High-frequency Power Modules — Local energy storage and decoupling for switching regulators and POL modules that drive high-frequency currents.
• Industrial and Communications Equipment — Filtering and energy storage in compact SMD power subsystems operating across wide temperature ranges (−55 °C to +125 °C).
• Compact Embedded Systems — Space-efficient SMD can for designs requiring a small footprint with reliable, long-life capacitive performance.

Unique Advantages

• High ripple tolerance with low ESR: 900 mA at high frequency and 50 mΩ ESR at 100 kHz deliver efficient ripple handling for switching applications.
• Extended high-temperature life: 3000 hours at 125 °C supports longevity in elevated-temperature installations and improves maintenance intervals.
• Compact SMD can package: φ6.3 × 5.8 mm footprint and tape-and-reel packaging simplify automated assembly in space-constrained boards.
• Predictable dissipation characteristics: Specified tan δ (0.12 at 20 °C, 120 Hz) helps in thermal and loss budgeting during design.
• Assembly-ready reliability: Specified resistance to soldering heat (lead-free reflow to 260 °C) ensures compatibility with modern SMT processes.
• Controlled leakage: Maximum leakage current of 100 µA minimizes standby loss for energy-sensitive circuits.

Why Choose RKS1D101MCNAFEGS?

RKS1D101MCNAFEGS balances high capacitance density with low ESR and high ripple capability in a compact SMD can, making it a practical choice for engineers designing robust power rails in tight spaces. Its wide operating temperature range and 3000-hour endurance at 125 °C provide predictable lifetime performance in elevated-temperature environments.

This part is suited to designs that require reliable bulk capacitance and efficient high-frequency filtering—especially in power modules, industrial electronics, and compact embedded systems—offering straightforward integration into automated assembly and established reflow processes.

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