RKS1E471MCNAJLGS

The RKS1E471MCNAJLGS is a surface-mount conductive polymer aluminum electrolytic capacitor delivering 470 µF at a 25 V rating. It combines high capacitance and low ESR in an SMD radial can package sized φ10 × 12.4L for general-purpose power applications.

Designed for SMD assemblies, the part offers high allowable ripple current and extended load life, making it suitable for demanding thermal and ripple environments within its rated range.

Key Features

• Capacitance & Voltage: 470 µF nominal capacitance with a rated voltage of 25 V and tolerance of -20% to +20% for predictable bulk energy storage.
• Low ESR & High-Frequency Performance: ESR of 20 mΩ measured at 20°C/100 kHz supports high-frequency decoupling and reduces losses at switching frequencies.
• High Allowable Ripple Current: Low-frequency ripple current 200 mA (120 Hz) and high-frequency ripple current 2 A (300 kHz) for robust handling of AC ripple in power circuits.
• Temperature & Endurance: Rated for operation from -55°C to 125°C with a load life of 3000 hours at 125°C, supporting long-term reliability under elevated temperature stress.
• Solid Polymer Construction: Conductive polymer aluminum solid electrolyte provides stable electrical characteristics, including a tangent of loss angle (tanδ) of 0.12 at 20°C/120 Hz.
• Leakage Current: Specified leakage current of 587 µA for predictable quiescent behavior after voltage application.
• Surface-Mount Packaging: Radial SMD can (φ10 × 12.4L) supplied in embossed carrier taping with moisture-proof packing for automated assembly.
• RoHS Compliant: Meets RoHS requirements for lead-free assembly processes.

Typical Applications

• Power Supply Filtering: Bulk decoupling and smoothing in compact SMD power modules where high capacitance and low ESR reduce voltage ripple.
• DC–DC Converter Output: Output-side filtering for converters that require high ripple-current capability at switching frequencies.
• General-Purpose SMD Electronics: General-purpose energy storage and decoupling in space-constrained assemblies that require a durable, high-capacitance SMD solution.

Unique Advantages

• High Capacitance in an SMD Can: 470 µF packaged in a compact φ10 × 12.4L SMD radial can delivers significant bulk capacitance for space-limited boards.
• Low Losses at High Frequency: 20 mΩ ESR at 100 kHz reduces dissipation and improves efficiency in high-frequency power circuits.
• High Ripple Tolerance: Rated for 2 A at 300 kHz and 200 mA at 120 Hz, enabling reliable performance under both switching and low-frequency ripple stress.
• Long Thermal Endurance: 3000-hour life at 125°C supports durability in high-temperature operating profiles.
• SMD-Ready Supply Chain: Embossed carrier taping and moisture-proof packing simplify SMT line integration and handling.
• Predictable Electrical Characteristics: Specified tanδ and leakage current values allow accurate simulation and margining for power designs.

Why Choose RKS1E471MCNAJLGS?

The RKS1E471MCNAJLGS positions itself as a reliable, high-capacitance SMD solution for designers who need robust ripple handling, low ESR at high frequency, and long-term thermal endurance. Its conductive polymer aluminum construction and 3000-hour life at 125°C make it suitable for demanding power smoothing and decoupling tasks in compact assemblies.

This part is ideal for engineers designing space-constrained power supplies and DC–DC converter outputs that require stable capacitance, low loss, and a straightforward SMD assembly process. Its specification set supports predictable performance and simplifies BOM decisions for long-life electronic products.

Request a quote or contact sales to discuss availability, lead times, and how RKS1E471MCNAJLGS can be integrated into your next design.