RKS1K180MCNAHJGS

The RKS1K180MCNAHJGS is a surface-mount conductive polymer aluminum solid electrolytic capacitor from Nichicon’s RKS series. It provides 18 µF capacitance at a rated voltage of 80 V in a compact φ8 × 10 mm SMD can package, designed for general-purpose power electronics where low ESR and high allowable ripple current are required.

With a wide operating temperature range and a rated endurance of 3000 hours at 125°C, this part targets applications that demand reliable high-frequency decoupling and bulk smoothing in compact surface-mount assemblies.

Key Features

• Capacitance and Voltage: 18 µF capacitance with an 80 V rated voltage and ±20% tolerance, suitable for mid-voltage power rails.
• Conductive Polymer Dielectric: Solid electrolytic construction offering stable performance and high allowable ripple current compared with conventional electrolytes.
• Low ESR: 40 mΩ ESR measured at 20°C / 100 kHz, reducing power loss and improving efficiency in high-frequency circuits.
• High Ripple Current Capability: Low-frequency ripple current 110 mA (120 Hz) and high-frequency ripple current 1.1 A (300 kHz) for robust filtering in switching power stages.
• Reliability and Endurance: Rated life of 3000 hours at 125°C; designed to meet endurance and damp-heat specifications from the RKS series.
• Thermal Range and Stability: Operating temperature range from −55°C to 125°C and tan δ of 0.12 (measured at 20°C, 120 Hz), supporting stable behaviour across temperature extremes.
• Leakage Current: Specified leakage current up to 100 µA (after defined conditioning), enabling predictable standby and quiescent currents.
• SMD Package and Assembly: Radial can SMD package (φ8 × 10 mm) supplied in embossed carrier taping with moisture-proof packing; compatible with lead-free reflow soldering conditions up to 260°C peak as specified for the series.
• RoHS Compliant: Meets RoHS requirements for environmental compliance.

Typical Applications

• DC‑DC Converter Output Filtering: Low ESR and 1.1 A high-frequency ripple rating make it suitable for smoothing outputs in compact switching regulators.
• Power Supply Bulk and Rail Smoothing: 18 µF at 80 V provides bulk capacitance and transient buffering for mid-voltage power rails in industrial and communication equipment.
• High‑Frequency Decoupling: Low ESR at 100 kHz supports decoupling close to power stages in high-speed power electronics.
• General Purpose Power Electronics: Use in control boards and power modules where long life at elevated temperatures and surface-mount assembly are required.

Unique Advantages

• High allowable ripple current: Enables effective filtering in switching applications and reduces thermal stress under dynamic load conditions.
• Low ESR for efficiency: 40 mΩ at 100 kHz lowers I²R losses and improves regulator stability and thermal performance.
• Long high‑temperature life: 3000 hours at 125°C supports sustained operation in hot environments and increases mean time between maintenance.
• Compact SMD can package: φ8 × 10 mm radial can in embossed carrier tape saves board area while supporting automated placement and moisture-controlled handling.
• Predictable leakage current: Specified leakage behaviour (100 µA) aids power budgeting in standby and low‑power designs.
• RoHS compliant and lead‑free reflow capable: Meets environmental requirements and assembly processes for modern manufacturing flows.

Why Choose RKS1K180MCNAHJGS?

The RKS1K180MCNAHJGS delivers a balanced combination of capacitance, voltage rating and performance characteristics—low ESR, high allowable ripple current, and extended high-temperature life—making it a practical choice for engineers designing compact power supplies and high-frequency power stages. Its conductive polymer construction and SMD can package support efficient filtering and reliable operation in thermally demanding applications.

This part is well suited for designs that need predictable electrical behaviour, automated surface-mount assembly, and long-term stability at elevated temperatures. Choosing the RKS1K180MCNAHJGS provides designers a verifiable specification set for power rail smoothing, decoupling, and general-purpose power electronics in industrial and commercial systems.

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