RKS1E120MCNAFEGS

The RKS1E120MCNAFEGS is a surface-mount conductive-polymer aluminum solid electrolytic capacitor offering 12 µF capacitance at a 25 V rating. It combines low ESR and high allowable ripple current in a compact φ6.3 × 5.8 mm SMD can package, designed for compact power electronics where stable high-frequency performance and thermal endurance are required.

Engineered for elevated operating conditions, the device supports an operating temperature range of −55 °C to 125 °C and a rated load life of 3000 hours at 125 °C, making it suitable for designs that demand sustained performance under heat and high ripple stress.

Key Features

• Dielectric / Construction — Conductive-polymer aluminum solid electrolyte for stable performance and improved ripple handling compared to conventional electrolytics.
• Capacitance & Voltage — 12 µF nominal capacitance with a rated voltage of 25 V and tolerance of −20% to +20%.
• Low ESR & Frequency Performance — ESR of 50 mΩ measured at 20 °C / 100 kHz, supporting effective high-frequency filtering and decoupling.
• High Allowable Ripple Current — Low-frequency ripple current: 90 mA (120 Hz); high-frequency ripple current: 900 mA (300 kHz), enabling use at both low- and high-frequency stress points.
• Leakage & Dissipation — Leakage current specified at 100 µA; dissipation factor (tan δ) 0.12 measured at 20 °C, 120 Hz.
• Thermal Endurance — Rated operating temperature −55 °C to 125 °C with a load life of 3000 hours at 125 °C, aligned with series endurance data.
• Surface-Mount Packaging — Compact radial can SMD package (φ6.3 × 5.8 mm) supplied in embossed carrier taping with moisture-proof packing for automated assembly.
• RoHS Compliant — Meets RoHS directive requirements as indicated in the product information.

Typical Applications

• High-frequency power decoupling — Low ESR and high ripple capability make this capacitor suitable for decoupling at switching nodes where transient suppression and low impedance at high frequency are required.
• DC–DC converter output filtering — Compact can size and high allowable ripple current support stable output filtering in space-constrained converter designs.
• Industrial and embedded power modules — Long load life at elevated temperature (3000 h at 125 °C) supports reliable operation in thermally demanding embedded or industrial power electronics.

Unique Advantages

• Low ESR for improved filtering: 50 mΩ at 100 kHz reduces voltage ripple and improves high-frequency attenuation in power paths.
• High ripple-current capability: Up to 900 mA at high frequency and 90 mA at low frequency enables operation at demanding switching frequencies without premature degradation.
• Thermal durability: −55 °C to 125 °C operating range and 3000 hours load life at 125 °C provide longevity in hot environments.
• Compact SMD footprint: φ6.3 × 5.8 mm can package saves board space and is compatible with automated placement and embossed carrier taping.
• Predictable leakage and loss characteristics: Specified leakage current (100 µA) and tan δ (0.12 at 20 °C, 120 Hz) enable predictable behavior for margin-sensitive designs.
• Process-ready supply: Moisture-proof embossed carrier taping supports standard SMT manufacturing workflows.

Why Choose RKS1E120MCNAFEGS?

RKS1E120MCNAFEGS is positioned for engineers who need a compact, thermally robust SMD capacitor with low ESR and strong ripple-current handling for high-frequency power applications. Its conductive-polymer construction and rated endurance (3000 hours at 125 °C) deliver stable electrical characteristics over long operating periods at elevated temperatures.

This part is a practical choice for designers of space-constrained power stages and embedded power modules that require reliable decoupling and output filtering. The combination of measured ESR, ripple specs, and automated-assembly packaging supports predictable integration and long-term operational value.

Request a quote or submit a procurement inquiry for RKS1E120MCNAFEGS to receive pricing, availability, and packaging options for your production or evaluation needs.