RKS1E330MCNAFEGS

The RKS1E330MCNAFEGS from Nichicon is a surface-mount conductive polymer aluminum solid electrolytic capacitor delivering 33 µF at a 25 V rating. It combines low equivalent series resistance and high ripple-current capability with a compact SMD can-style package for assembly on modern PCBs.

Engineered for elevated-temperature environments, this capacitor is specified for continuous operation from −55°C to +125°C and a rated life of 3000 hours at 125°C, making it suitable for designs that require sustained performance under thermal stress.

Key Features

• Electrical — Capacitance & Voltage: 33 µF nominal capacitance with a rated voltage of 25 V and a capacitance tolerance of −20% to +20% (120 Hz, 20°C).
• Low Loss & High-Frequency Performance: Specified tanδ (DF) of 0.12 at 20°C, 120 Hz, and an ESR of 50 mΩ measured at 20°C/100 kHz for effective high-frequency filtering.
• High Ripple Current Capability: Rated low-frequency ripple current of 90 mA at 120 Hz and high-frequency ripple current of 900 mA at 300 kHz to handle switching and high-frequency loads.
• Reliability & Endurance: Load life specified at 3000 hours at 125°C; leakage current specified at 100 µA and endurance performance limits defined in the datasheet.
• Temperature Range: Operates across −55°C to +125°C to support elevated-temperature applications.
• Package & Assembly: Compact φ6.3 × 5.8 mm can-style SMD package with embossed carrier taping and moisture-proof packing; compatible with lead-free reflow soldering (peak up to 260°C as specified for the series).
• Polarized, SMD Mounting: Polarized aluminum electrolytic construction designed for surface-mount assembly; recommended PCB land size L: 6.6 × W: 6.6 mm.
• Regulatory: RoHS compliant, per the product specification.

Typical Applications

• Power rail decoupling: Low ESR (50 mΩ @100 kHz) and high-frequency ripple capability (900 mA at 300 kHz) support decoupling and local energy storage for switching power stages.
• High-temperature power systems: Rated for −55°C to +125°C with a 3000-hour life at 125°C, suited to applications that require sustained performance in elevated ambient temperatures.
• Surface-mount, high-density assemblies: Compact φ6.3 × 5.8 mm SMD can and embossed carrier taping enable automated placement in space-constrained board designs.
• High-frequency filtering: Low loss (tanδ 0.12 at 120 Hz) and low ESR allow effective filtering in high-frequency circuits where stable impedance is required.

Unique Advantages

• High ripple handling: Specified ripple currents (90 mA @120 Hz; 900 mA @300 kHz) help manage both low- and high-frequency ripple on power rails.
• Low impedance at high frequency: 50 mΩ ESR at 100 kHz supports tighter voltage regulation and reduced noise in switching applications.
• Extended high-temperature life: 3000 hours at 125°C provides predictable endurance in elevated-temperature installations.
• SMD-friendly packaging: Embossed carrier taping and moisture-proof packing streamline automated assembly and handling for volume production.
• Lead-free reflow compatible: Specified reflow tolerance up to 260°C peak facilitates use with lead-free soldering processes.
• Compact footprint: φ6.3 × 5.8 mm can-style package offers a small board-area solution for applications requiring sizable capacitance in a small form factor.

Why Choose RKS1E330MCNAFEGS?

The RKS1E330MCNAFEGS positions itself as a compact, surface-mount conductive polymer aluminum capacitor optimized for designs that demand low ESR, high ripple-current capability, and robust performance at elevated temperatures. Its combination of electrical characteristics and a 3000-hour life at 125°C delivers verifiable endurance and stability for power management functions.

This part is appropriate for engineers specifying SMD capacitors where small size, high-frequency performance, and reliable operation in hot environments are required. Backed by Nichicon’s RKS series specifications, it provides measurable, datasheet-defined characteristics for predictable integration into production designs.

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