RKS1E220MCNAFGGS

The RKS1E220MCNAFGGS is a conductive polymer aluminum solid electrolytic capacitor in an SMD can package designed for high-frequency, high-temperature power applications. With a 22 µF capacitance at 25 V and low equivalent series resistance, it provides stable decoupling and smoothing where compact size and robust thermal performance are required.

Key value comes from a combination of low ESR (30 mΩ at 100 kHz), high allowable ripple current (1.4 A at 300 kHz), and extended endurance (3000 hours at 125°C), making it suitable for demanding power rails and compact power modules that must withstand elevated operating temperatures and reflow assembly.

Key Features

• Capacitance & Voltage — 22 µF nominal capacitance with a rated voltage of 25 V and tolerance of -20% to +20% for predictable decoupling performance.
• Conductive Polymer Construction — Solid electrolyte design offering stable electrical characteristics and suitability for high-frequency ripple applications.
• Low ESR & High Ripple Capability — ESR of 30 mΩ at 100 kHz and high-frequency ripple current rating of 1.4 A (300 kHz) to support switching regulators and fast transient loads.
• High Thermal Endurance — Rated for operation from -55°C to 125°C with a load life of 3000 hours at 125°C to endure harsh thermal environments.
• Reflow-Compatible SMD Package — Surface-mount radial can (φ6.3 × 7.7 mm) sized for space-constrained PCB layouts and compatible with lead-free reflow soldering (peak 260°C per datasheet reflow conditions).
• Low Leakage and Loss — Leakage current specified at 100 µA and tanδ (df) of 0.12 (measured at 20°C, 120 Hz) for controlled leakage and dielectric loss.
• Packaging — Supplied in embossed carrier taping with moisture-proof packing for automated assembly and handling.
• RoHS Compliant — Compliant to RoHS directive as stated in the product documentation.

Typical Applications

• Switch-Mode Power Supplies — Bulk smoothing and output decoupling for DC‑DC converters where low ESR and high ripple current handling improve regulation and transient response.
• Power Modules and Point-of-Load — Compact SMD can fits tight layouts while delivering high-frequency performance and thermal endurance for power conversion modules.
• Industrial Electronics — Voltage smoothing and filtering in systems operating in elevated temperature environments up to 125°C and requiring long life.
• High-Frequency Power Rails — Local decoupling on fast switching rails thanks to conductive polymer construction and measured performance at 100 kHz–300 kHz.

Unique Advantages

• Robust High-Temperature Lifetime: Rated 3000 hours at 125°C, enabling designs with extended field life in hot environments.
• High-Frequency Performance: Low ESR (30 mΩ at 100 kHz) and 1.4 A ripple rating at 300 kHz reduce losses and voltage ripple on switching supplies.
• Compact SMD Form Factor: φ6.3 × 7.7 mm can-style SMD package supports space-constrained boards and pick-and-place assembly.
• Assembly-Ready Packaging: Embossed carrier taping and moisture-proof packing facilitate automated production and storage.
• Predictable Leakage and Loss: Specified leakage current (100 µA) and tanδ (0.12 at 20°C, 120 Hz) support reliable margining in precision power designs.
• RoHS Compliance: Meets RoHS requirements for regulatory compliance in applicable markets.

Why Choose RKS1E220MCNAFGGS?

RKS1E220MCNAFGGS combines conductive polymer reliability with low ESR and a high ripple-current capacity in a compact surface-mount can. Its 25 V rating, 22 µF capacitance, and proven endurance at 125°C make it a strong choice for engineers designing power conversion, point-of-load, and high-frequency decoupling solutions that must tolerate elevated temperatures and reflow assembly.

This part is suited to designers seeking a balance of thermal robustness, frequency performance, and automated assembly readiness—delivering long-term stability and predictable electrical behavior in demanding power applications.

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