RKS1D181MCNAJLGS

The RKS1D181MCNAJLGS is a surface-mount conductive polymer aluminum electrolytic capacitor delivering 180 µF at 20 V in a compact radial can SMD package. It is designed for general-purpose electronic applications that require low ESR, high ripple handling and stable performance across a wide temperature range.

With a rated operating range from −55°C to 125°C and a 3000-hour endurance at 125°C, this part targets designs that need robust capacitance retention and reliable power decoupling under elevated temperature and high-frequency stress.

Key Features

• Capacitance & Tolerance — 180 µF nominal with tolerance of −20% to +20% (measured at 20°C, 120 Hz).
• Rated Voltage — 20 V DC rating suitable for common power rail applications.
• Conductive Polymer Construction — Conductive polymer aluminum solid electrolytic architecture for stable performance and low loss.
• Low ESR — ESR of 20 mΩ measured at 20°C / 100 kHz, enabling efficient high-frequency decoupling.
• High Ripple Current Capability — 200 mA low-frequency ripple at 120 Hz and 2 A high-frequency ripple at 300 kHz for demanding switching environments.
• Dissipation & Leakage — tanδ of 0.12 (20°C, 120 Hz) and leakage current of 180 µA, supporting predictable loss and standby behavior.
• Reliability & Temperature — Rated for −55°C to 125°C with a load life of 3000 hours at 125°C for long-term high-temperature operation.
• Compact SMD Package — Radial can SMD sizing φ10 × 12.4 mm (L: 1.24 × D: 1.00 cm) supplied in embossed carrier taping with moisture-proof packing for automated assembly.
• RoHS Compliant — Meets RoHS directive requirements as indicated in the product data.

Typical Applications

• DC–DC Converters: Bulk and output smoothing where low ESR and high ripple handling improve regulator stability and transient response.
• Switch-Mode Power Supplies: Input and output filtering for switching regulators operating at high frequency, benefiting from the 2 A high-frequency ripple rating and low ESR.
• Embedded and Industrial Electronics: Power rail decoupling in systems operating across −55°C to 125°C and requiring long endurance at elevated temperatures.

Unique Advantages

• High-Frequency Performance: 20 mΩ ESR at 100 kHz combined with a 2 A ripple rating at 300 kHz enables effective decoupling in switching applications.
• Thermal Endurance: 3000 hours of rated life at 125°C supports designs exposed to sustained high-temperature operation.
• Predictable Loss Characteristics: A tanδ of 0.12 (20°C, 120 Hz) provides a clear metric for loss budgeting in power-sensitive designs.
• Compact, Assembly-Ready Package: SMD radial can in embossed carrier taping with moisture-proof packing simplifies pick-and-place and reflow processes.
• General-Purpose Versatility: Balanced electrical and environmental specs make the capacitor suitable for a wide range of power-management roles.

Why Choose RKS1D181MCNAJLGS?

RKS1D181MCNAJLGS combines conductive polymer aluminum construction with low ESR and high ripple capability to address demanding decoupling and bulk storage needs in compact surface-mount formats. Its 20 V rating, 180 µF capacitance, and clearly defined loss and leakage parameters let engineers design predictable power subsystems.

This part is ideal for engineers and purchasers looking for a robust, long-life SMD capacitor for switching regulators, DC–DC converters, and industrial electronics where temperature resilience and reliable high-frequency behavior are required.

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