RKS1E561MCNAJLGS

The RKS1E561MCNAJLGS from Nichicon is a surface-mount, conductive-polymer aluminum electrolytic capacitor offering 560 µF nominal capacitance at 25 V. Built for general-purpose power applications, it combines high capacitance density with low ESR and rated ripple-handling to support high-frequency and bulk decoupling tasks in compact SMD assemblies.

This part is specified for operation across a wide temperature range (−55°C to 125°C) with a rated endurance of 3000 hours at 125°C, making it suitable for designs that require long-term stability under elevated temperature stress.

Key Features

• Capacitance & Tolerance — 560 µF nominal with tolerance −20% to +20% at 20°C, 120 Hz.
• Rated Voltage — 25 V DC rating for common low-voltage power rails.
• Low ESR for High-Frequency Performance — 20 mΩ ESR measured at 20°C / 100 kHz, supporting high-frequency ripple currents up to 2.0 A (300 kHz condition).
• Ripple Current Capability — Low-frequency ripple current 200 mA (120 Hz) and high-frequency ripple current 2000 mA, enabling effective smoothing in switching power environments.
• Leakage Current — Specified leakage current of 700 µA, supporting predictable bias behavior after voltage application.
• Extended Thermal Endurance — Rated life of 3000 hours at 125°C, specified capacitance and ESR limits maintained per datasheet endurance criteria.
• Surface-Mount Radial Can Package — Compact φ10 × 12.4 mm can (L: 12.4 mm × D: 10 mm) in an SMD-compatible radial/can style; supplied in embossed carrier taping with moisture-proof packing for automated assembly.
• RoHS Compliance and Reflow Compatibility — Series-level datasheet indicates RoHS directive compliance and lead-free reflow soldering compatibility to a 260°C peak for suitable assembly processes.

Typical Applications

• Power supply decoupling and smoothing — Low ESR and 2.0 A high-frequency ripple rating make this capacitor suited for smoothing output stages of switching regulators and DC-DC converters.
• High-frequency power circuits — Designed to handle high-frequency ripple current with stable ESR at 100 kHz, supporting compact power modules and converters.
• Thermally demanding electronics — With an operating range of −55°C to 125°C and 3000-hour endurance at 125°C, it is appropriate for electronics exposed to elevated temperatures.
• SMD assembly lines — Supplied in embossed carrier taping and moisture-proof packing to support automated placement and reflow processes.

Unique Advantages

• High capacitance in a compact SMD can — 560 µF in a φ10 × 12.4 mm package reduces board area compared with discrete solutions requiring multiple components.
• Low ESR for efficient ripple handling — 20 mΩ ESR at 100 kHz enables lower loss and improved filtering performance in high-frequency circuits.
• Dual-frequency ripple specification — Separate low-frequency (120 Hz) and high-frequency (300 kHz) ripple ratings provide clear design guidance for both bulk and switching-domain filtering.
• Long-term thermal endurance — 3000-hour rated life at 125°C offers predictable aging behavior for designs requiring extended field life at elevated temperature.
• Assembly-ready packaging — Embossed carrier taping and moisture-proof packing streamline automated pick-and-place and storage workflows.

Why Choose RKS1E561MCNAJLGS?

RKS1E561MCNAJLGS positions itself as a compact, high-capacitance SMD solution for power filtering and decoupling in designs where low ESR, high ripple capability, and elevated-temperature endurance are required. Its combination of 560 µF capacitance, 25 V rating, and measured ESR and ripple parameters gives designers explicit performance figures to size bulk and high-frequency filtering stages.

This Nichicon RKS-series part is well suited to engineers specifying robust, assembly-friendly capacitors for industrial and general-purpose electronic systems that demand long-term stability under thermal stress and reliable behavior in automated manufacturing environments.

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