RKS1D331MCNAHJGS

The RKS1D331MCNAHJGS is a Nichicon RKS series surface-mount conductive polymer aluminum electrolytic capacitor specified at 330 µF and 20 V. It combines high capacitance in a compact φ8 × 10 mm SMD can with low equivalent series resistance and high allowable ripple current for general-purpose electronic applications.

Designed for demanding thermal and ripple environments, this part offers long endurance (3000 hours at 125°C), wide operating temperature range (−55°C to 125°C), and embossed carrier taping with moisture-proof packing for automated assembly.

Key Features

• Capacitance & Voltage — 330 µF nominal capacitance with a rated voltage of 20 V and capacitance tolerance of −20% to +20% (measured at 20°C, 120 Hz).
• Conductive Polymer Aluminum Electrolytic — Solid conductive polymer construction for stable performance and lower losses compared with traditional wet electrolytics.
• Low Loss / Dissipation Factor — tanδ (DF) of 0.12 measured at 20°C and 120 Hz for efficient AC performance.
• Low ESR — 25 mΩ ESR specified at 20°C and 100 kHz to support high-current transient and high-frequency applications.
• High Ripple Current Capability — 170 mA at 120 Hz (low frequency) and 1.7 A at 300 kHz (high frequency), enabling effective smoothing and decoupling under dynamic loads.
• Leakage Current — Rated leakage current of 330 µA after voltage application conditions specified in the datasheet.
• Extended Endurance — Load-life of 3000 hours at 125°C under rated voltage, with defined limits for capacitance change, tanδ, ESR and leakage current.
• Package & Mounting — Surface-mount radial can (φ8 × 10L), size 10 mm × 8 mm (L × D), supplied in embossed carrier tape with moisture-proof packing for SMT production.
• Wide Operating Temperature — Specified for −55°C to +125°C operation to handle elevated-temperature environments.

Typical Applications

• General Purpose Electronics — Suitable for assemblies requiring a 330 µF, 20 V SMD capacitor where reliable bulk capacitance and general-purpose performance are needed.
• Power Supply Filtering — Low ESR (25 mΩ) and high ripple capability (1.7 A at 300 kHz) make it appropriate for smoothing and filtering in power rails and converters.
• High-Frequency Power Modules — The combination of low loss (tanδ 0.12 at 120 Hz) and high-frequency ripple rating supports applications with significant high-frequency current content.

Unique Advantages

• High ripple tolerance: 1.7 A at 300 kHz and 170 mA at 120 Hz supports sustained AC stress and dynamic load conditions.
• Low ESR for efficient delivery: 25 mΩ at 100 kHz reduces power dissipation and improves transient response on power rails.
• Long high-temperature life: 3000 hours at 125°C provides predictable endurance in elevated-temperature designs.
• Compact SMD can: φ8 × 10 mm package delivers high capacitance in a small footprint for space-constrained boards.
• Assembly-ready packaging: Embossed carrier taping with moisture-proof packing supports automated surface-mount assembly processes.
• Broad operating range: −55°C to 125°C specification addresses a wide range of environmental conditions.

Why Choose RKS1D331MCNAHJGS?

RKS1D331MCNAHJGS targets designs that require a high-capacitance SMD solution with low ESR, strong ripple-current capability, and high-temperature endurance. Its conductive polymer aluminum construction and 3000-hour life at 125°C deliver reliable performance where long-term stability under thermal and ripple stress matters.

This part is well suited to engineers specifying general-purpose power and filtering capacitors in compact assemblies who need verifiable performance data (ESR, ripple current, leakage, and endurance) and assembly-friendly packaging from the Nichicon RKS series.

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