RKS1D221MCNAJLGS

The RKS1D221MCNAJLGS is a surface-mount conductive polymer aluminum solid electrolytic capacitor offering 220 µF capacitance at a 20 V rating. It combines low ESR and high ripple-current capability with a compact radial can SMD package (φ10 × 12.4L) for general-purpose electronic designs.

Designed for demanding thermal and ripple environments, this Nichicon RKS-series device supports wide operating temperatures and extended load life, making it suited to power-supply decoupling, smoothing and other general-purpose applications requiring reliable high-frequency performance.

Key Features

• Capacitance and Tolerance — 220 µF nominal capacitance with tolerance of −20% to +20% (measured at 120 Hz, 20°C).
• Rated Voltage — 20 V DC rating for a range of low-voltage power applications.
• Low ESR — 20 mΩ equivalent series resistance specified at 20°C / 100 kHz to support high-frequency decoupling and reduced loss.
• High Ripple Current — 200 mA allowable ripple at 120 Hz and 2 A allowable ripple at 300 kHz, enabling robust smoothing and transient handling across frequencies.
• Leakage and Loss — Leakage current specified at 220 µA; tangent of loss angle (tanδ) 0.12 at 20°C / 120 Hz.
• Wide Temperature & Long Life — Operating range −55°C to +125°C with rated load life of 3000 hours at 125°C.
• Package & Mounting — Surface-mount radial can (φ10 × 12.4L) supplied in embossed carrier taping with moisture-proof packing for automated assembly.
• Lead-Free Soldering Compatibility — Series supports lead-free reflow soldering conditions with a peak up to 260°C as defined by the manufacturer.
• RoHS Compliant — Meets RoHS requirements as supplied by the manufacturer.

Typical Applications

• Power Supply Decoupling — Low ESR and high ripple current capacity make it suitable for bulk and local decoupling on DC power rails.
• DC–DC Converters — Supports input/output smoothing and transient response demands in switching regulator circuits across a wide temperature range.
• Consumer & Industrial Electronics — General-purpose smoothing and energy-buffering in embedded systems where long life and wide temperature tolerance are required.
• High-Frequency Filtering — 20 mΩ ESR at 100 kHz and 2 A ripple specification enable effective high-frequency noise attenuation and filtering.

Unique Advantages

• Low ESR for reduced power loss: 20 mΩ at 100 kHz lowers dissipation in high-frequency applications, improving efficiency and thermal performance.
• High ripple capability across frequencies: Rated ripple current of 200 mA (120 Hz) and 2 A (300 kHz) supports both low- and high-frequency smoothing needs.
• Extended high-temperature life: 3000 hours at 125°C provides long-term reliability in thermally demanding environments.
• Compact SMD radial can: φ10 × 12.4L package offers a balance of capacitance and board-space efficiency for automated assembly.
• Manufacturing-friendly packaging: Embossed carrier taping and moisture-proof packing streamline surface-mount assembly and storage.

Why Choose RKS1D221MCNAJLGS?

RKS1D221MCNAJLGS is positioned for designs that require a robust, low-ESR SMD capacitor with strong ripple-current handling and extended life at elevated temperatures. Its conductive polymer aluminum construction and explicit electrical/thermal specifications deliver verifiable performance for power management and filtering tasks in both consumer and industrial systems.

Engineers and purchasers looking for a compact, surface-mount capacitor with clear datasheet limits, RoHS compliance, and supplier-backed endurance should consider this Nichicon RKS-series part for board-level decoupling, smoothing and energy-buffering applications.

If you need pricing, availability, or a formal quote for RKS1D221MCNAJLGS, request a quote or contact sales to discuss lead times and sample availability.