RKS1E330MCNAHHGS

The RKS1E330MCNAHHGS is a surface-mount conductive polymer aluminum electrolytic capacitor from Nichicon’s RKS series, rated 33 µF at 25 V. Engineered for high ripple environments, it combines low ESR and stable capacitance across a wide temperature range to support compact power designs.

Typical use cases include high-frequency power circuits and board-level power distribution where low loss, high ripple handling and elevated temperature endurance are required.

Key Features

• Capacitance & Voltage — 33 µF nominal capacitance with a rated voltage of 25 V and tolerance of −20% to +20% (measured at 120 Hz, 20 °C).
• Low Loss / Low ESR — ESR specified at 30 mΩ (20 °C, 100 kHz), supporting efficient high-frequency operation and reduced power dissipation.
• High Ripple Current Capability — Low-frequency ripple current of 160 mA (120 Hz) and high-frequency ripple current of 1.6 A (300 kHz) for demanding switching and filtering applications.
• Leakage & Dielectric Loss — Typical leakage current specified at 100 µA; tan δ (DF) of 0.12 at 20 °C, 120 Hz for predictable AC behavior.
• Temperature & Endurance — Rated operating range −55 °C to +125 °C with a load life of 3000 hours at 125 °C, designed for long-term stability in elevated-temperature environments.
• SMD Packaging & Assembly — Radial can SMD package (φ8 × 8.7 mm) supplied in embossed carrier taping with moisture-proof packing and compatible with lead‑free reflow soldering profiles.
• RoHS Compliant — Conforms to RoHS requirements, supporting regulatory compliance for lead‑free assemblies.

Typical Applications

• DC–DC Converter Output Filtering — Low ESR and high ripple current handling make it suitable for smoothing outputs of switching regulators.
• Point-of-Load Power Rail Decoupling — Compact SMD can with strong high-frequency performance supports local decoupling on densely populated boards.
• Power Supply Bulk/Intermediate Filtering — High-temperature endurance and stable capacitance under load support bulk filtering in compact power supplies.
• Industrial and Communications Power Subsystems — Designed for extended life at elevated temperatures common to industrial and telecom power modules.

Unique Advantages

• High ripple tolerance: Rated ripple currents (160 mA at 120 Hz, 1.6 A at 300 kHz) reduce thermal stress and extend capacitor life in switching applications.
• Low ESR at high frequency: 30 mΩ ESR at 100 kHz lowers conduction losses and improves transient response for high-speed power rails.
• Extended high-temperature endurance: 3000 hours at 125 °C provides predictable long-term behavior in hot operating environments.
• Compact SMD form factor: φ8 × 8.7 mm can in embossed carrier taping enables automated assembly and space-efficient board layouts.
• Predictable leakage and loss characteristics: Specified leakage current (100 µA) and tan δ (0.12 at 20 °C, 120 Hz) simplify margining for power designers.
• Manufacturing-ready packaging: Moisture-proof taped packaging and reflow compatibility support standard surface-mount assembly flows.

Why Choose RKS1E330MCNAHHGS?

The RKS1E330MCNAHHGS balances low ESR, high ripple capability and a robust high-temperature lifetime in a compact surface-mount conductive polymer aluminum package. It is suited to engineers designing compact power subsystems, DC–DC converters and board-level filtering where high-frequency performance and long-term reliability are required.

By combining measurable electrical performance (ESR, ripple current, leakage) with a 3000‑hour endurance at 125 °C and RoHS compliance, this part offers a clear, specification-driven option for demanding power designs backed by Nichicon’s RKS series engineering.

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