RKS1E470MCNAFEGS

The RKS1E470MCNAFEGS is a surface-mount, conductive polymer aluminum electrolytic capacitor in the RKS series, rated 47 µF at 25 V. It combines low ESR and high allowable ripple current in a compact φ6.3 × 5.8 mm can-style SMD package.

Designed for board-level power conditioning in compact electronic assemblies, this part offers high-temperature endurance and packaging optimized for automated assembly, making it suitable for demanding power filtering and decoupling applications where low loss and long life are required.

Key Features

• Capacitance & Voltage — 47 µF nominal capacitance with a rated voltage of 25 V and tolerance of −20% to +20%.
• Low Loss — Tangent of loss angle (tanδ) 0.12 measured at 20°C, 120 Hz for stable AC performance.
• Low ESR — ESR of 50 mΩ measured at 20°C, 100 kHz to minimize voltage drop and heat in high-frequency circuits.
• High Ripple Capability — Low-frequency ripple current 90 mA at 120 Hz and high-frequency ripple current 900 mA at 300 kHz to support heavy AC loading.
• Leakage Current — Specified leakage current up to 100 µA after standard conditioning.
• High-Temperature Endurance — Rated lifetime of 3000 hours at 125°C, enabling extended operation in elevated-temperature environments.
• Wide Operating Temperature — Specified operating range from −55°C to +125°C for broad environmental compatibility.
• SMD Packaging & Assembly — φ6.3 × 5.8 mm radial can SMD package supplied in embossed carrier taping with moisture-proof packing; compatible with lead-free reflow up to a 260°C peak.
• RoHS Compliant — Conforms to RoHS requirements.

Typical Applications

• Power Supply Filtering — Low ESR and high ripple-current capability make this capacitor suitable for smoothing and bulk filtering in compact DC power supplies and regulators.
• DC-DC Converter Output — The combination of low loss and 900 mA high-frequency ripple rating supports use at converter outputs and point-of-load energy storage.
• Noise Suppression and Decoupling — Stable tanδ and low ESR deliver effective decoupling in mixed-signal and high-frequency circuits where board space is limited.

Unique Advantages

• Compact, high-capacitance SMD form factor — 47 µF in a φ6.3 × 5.8 mm package helps reduce board area for power rails without sacrificing capacitance.
• High-temperature longevity — 3000-hour endurance at 125°C provides predictable performance and service life in thermally demanding applications.
• Optimized for high-frequency use — 50 mΩ ESR at 100 kHz and 900 mA ripple at 300 kHz reduce losses and thermal stress in switching circuits.
• Assembly-ready packaging — Embossed carrier taping and moisture-proof packing, plus lead-free reflow compatibility to 260°C, support automated surface-mount production flows.
• Measurable leakage control — Specified leakage current of 100 µA for predictable standby and bias behavior in power-sensitive designs.

Why Choose RKS1E470MCNAFEGS?

The RKS1E470MCNAFEGS is positioned for engineers who need a compact, high-capacitance SMD electrolytic with low ESR and strong ripple-handling capability. Its 25 V rating, robust temperature endurance to 125°C, and long rated life make it a suitable choice for sustained operation in compact power delivery systems.

This part supports designs that prioritize efficiency and thermal robustness—reducing thermal loss and simplifying thermal management—while its tape-and-reel friendly packaging facilitates automated assembly and supply-chain integration.

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