RKS1E331MCNAJLGS

The RKS1E331MCNAJLGS from Nichicon is a surface-mount conductive polymer aluminum solid electrolytic capacitor providing 330 µF at 25 V in a compact φ10 × 12.4 mm can-style SMD package. Designed for general-purpose power electronics, it delivers high capacitance density, low ESR, and extended high-temperature endurance for demanding board-level decoupling and smoothing applications.

This capacitor is optimized for applications that require stable performance across a wide temperature range (−55 °C to 125 °C) and long operational life, with a rated endurance of 3000 hours at 125 °C.

Key Features

• Dielectric and construction — Conductive polymer aluminum solid electrolytic construction for low-loss performance and stable behavior under load.
• Capacitance & voltage — 330 µF nominal capacitance with a tolerance of −20% to +20% at rated conditions, rated for 25 V operation.
• Low equivalent series resistance (ESR) — 20 mΩ specified at 20 °C, 100 kHz, enabling efficient high-frequency filtering and reduced power loss.
• High allowable ripple current — 200 mA at 120 Hz (low frequency) and 2.0 A at 300 kHz (high frequency) for robust performance in switching supplies and regulators.
• Thermal endurance — Rated operating temperature range −55 °C to 125 °C with a load life of 3000 hours at 125 °C for long-term reliability in elevated-temperature environments.
• Loss tangent and leakage — tan δ of 0.12 (measured at 20 °C, 120 Hz) and leakage current of 412 µA, suitable for stable DC performance.
• Surface-mount packaging — Radial can SMD (φ10 × 12.4 mm) offered in embossed carrier taping with moisture-proof packing for automated assembly.
• Regulatory — RoHS compliant.

Typical Applications

• Switch-mode power supplies (SMPS) — Bulk and output filtering where high capacitance, low ESR, and high ripple capability improve regulator stability and efficiency.
• Point-of-load decoupling — Local energy storage for DC-DC converters and intermediate bus capacitors to maintain voltage stability under dynamic loads.
• Telecommunications and networking equipment — Smoothing and high-frequency filtering in systems that require wide temperature operation and long life.
• Industrial control electronics — Power filtering and energy buffering in controllers and motor drives operating across broad temperature ranges.

Unique Advantages

• High capacitance density in an SMD can — 330 µF in a compact φ10 × 12.4 mm package reduces board area compared with larger discrete solutions.
• Low ESR at high frequency — 20 mΩ at 100 kHz supports lower conduction losses and improved transient response for switching applications.
• Designed for elevated-temperature endurance — 3000 hours at 125 °C provides predictable aging and reliability for high-temperature deployments.
• Wide operating temperature range — −55 °C to 125 °C enables use in environments with large thermal swings without sacrificing performance.
• Assembly-ready packaging — Embossed carrier taping and moisture-proof packing simplify automated pick-and-place and storage handling.
• Measured performance characteristics — Specified tan δ, leakage, ESR, and ripple currents give clear, verifiable parameters for design margining.

Why Choose RKS1E331MCNAJLGS?

RKS1E331MCNAJLGS combines conductive polymer aluminum technology with a compact SMD can to deliver high capacitance, low ESR, and a high ripple current capability in a package suitable for automated assembly. Its specified endurance of 3000 hours at 125 °C and wide −55 °C to 125 °C operating range make it a practical choice for designs that demand sustained performance in elevated-temperature or industrial environments.

This part is well suited for engineers and procurement teams looking for a reliable, verifiable capacitor for power supply decoupling, DC-DC converter outputs, and other general-purpose applications where capacitance density, low loss, and long-term thermal stability are priorities.

Request a quote or contact sales to discuss availability, volume pricing, and lead times for RKS1E331MCNAJLGS.