RKS1E101MCNAJJGS

The RKS1E101MCNAJJGS from Nichicon is a surface-mount conductive polymer aluminum solid electrolytic capacitor offering 100 µF capacitance at a 25 V rating. It combines low equivalent series resistance and high allowable ripple current in a compact φ10 × 10 mm SMD can, targeted at general-purpose power-decoupling and bulk-storage roles in electronic designs.

Designed for demanding thermal and ripple environments, this capacitor supports operation across −55 °C to +125 °C with a rated life of 3000 hours at 125 °C, making it suitable for applications that require long-term stability and robust high-frequency performance.

Key Features

• Core Technology — Conductive polymer aluminum solid electrolyte construction for improved high-frequency performance and stability compared with traditional electrolytics.
• Electrical Performance — 100 µF capacitance with −20% to +20% tolerance and tanδ (DF) of 0.12 measured at 20 °C, 120 Hz.
• Low ESR and High Ripple Handling — ESR of 20 mΩ (measured at 20 °C, 100 kHz) with low-frequency ripple current of 200 mA (120 Hz) and high-frequency ripple current up to 2 A (300 kHz).
• Leakage and Reliability — Leakage current specified at 125 µA and endurance of 3000 hours at 125 °C under rated voltage.
• Robust Thermal Range — Wide operating temperature range from −55 °C to +125 °C for reliable performance across harsh environments.
• SMD Packaging & Handling — φ10 × 10 mm radial can SMD package supplied in embossed carrier tape with moisture-proof packing for automated assembly; compatible with lead-free reflow up to 260 °C peak per series data.
• Regulatory Status — RoHS compliant.

Typical Applications

• Power supply decoupling — Local bulk and decoupling capacitor on DC power rails to stabilize voltage and absorb transient currents using low ESR and high ripple capability.
• DC–DC converters — Output filtering and energy storage for switching regulators where high-frequency ripple current and low ESR reduce voltage ripple.
• Embedded and industrial electronics — General-purpose bulk capacitance in compact SMD form for control boards and instrumentation operating across wide temperature ranges.
• High-frequency power rails — Use on high-speed power domains where the 20 mΩ ESR at 100 kHz and 2 A HF ripple rating improve transient response.

Unique Advantages

• Low ESR for improved efficiency: 20 mΩ ESR at 100 kHz reduces power loss and heat generation in high-frequency circuits.
• High ripple capability: Rated for 200 mA (120 Hz) and 2 A (300 kHz) ripple currents to support demanding switching-regulator and power-management applications.
• Extended high-temperature life: 3000 hours at 125 °C provides long-term reliability in thermally stressed systems.
• Compact SMD can: φ10 × 10 mm footprint delivers 100 µF capacitance in a size suited for automated assembly and space-constrained designs.
• Lead-free reflow compatible: SMD construction supports lead-free reflow processes up to 260 °C peak as specified for the series.
• Regulatory compliance: RoHS compliance simplifies environmental and supply-chain requirements.

Why Choose RKS1E101MCNAJJGS?

RKS1E101MCNAJJGS positions itself as a high-capacitance, low-ESR SMD solution for designers who need robust ripple handling and extended high-temperature endurance. Its conductive polymer aluminum construction, combined with a wide operating temperature range and 3000-hour life at 125 °C, makes it well suited to long-lived power electronics, DC–DC regulation, and general-purpose decoupling in compact assemblies.

This part is appropriate for engineering teams focused on improving power-rail stability, reducing board-level heating, and maintaining reliable capacitance over time and temperature. With embossed carrier tape and moisture-proof packing, it supports automated production workflows and stable supply for ongoing production runs.

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