RKS1V180MCNAFEGS

The RKS1V180MCNAFEGS is a surface-mount conductive-polymer aluminum solid electrolytic capacitor in Nichicon’s RKS series, offering 18 µF capacitance at 35 V. It is engineered for compact, high-frequency power applications that require low ESR, high allowable ripple current and extended high-temperature endurance.

Key design highlights include a small φ6.3 × 5.8 mm SMD can, RoHS compliance, and construction compatible with reflow soldering profiles up to a 260°C peak, making it suitable for modern assembly processes and dense power electronics.

Key Features

• Capacitance & Voltage — 18 µF nominal capacitance with a rated voltage of 35 V and capacitance tolerance of ±20%.
• Low ESR — ESR specified at 60 mΩ measured at 20°C / 100 kHz, supporting efficient high-frequency performance.
• High Ripple Capability — Low-frequency ripple current of 90 mA (120 Hz) and high-frequency ripple current of 900 mA (300 kHz) for demanding power filtering and decoupling tasks.
• Wide Operating Temperature — Rated for −55°C to +125°C operation, with endurance specified as 3000 hours at 125°C under rated voltage.
• Leakage & Loss — Leakage current specified at 100 µA; dissipation factor (tan δ) 0.12 measured at 20°C, 120 Hz.
• SMD Package & Assembly — Compact φ6.3 × 5.8 mm package (L × D: 5.8 × 6.3 mm) in an SMD radial can with surface-mount land recommendation of 6.6 × 6.6 mm; supplied in embossed carrier tape with moisture-proof packing.
• Reflow Compatibility — SMD construction conforming to reflow soldering conditions up to a 260°C peak as specified in the product documentation.
• Regulatory — RoHS compliant.

Typical Applications

• Power Supply Filtering — Low ESR and high ripple current capability make this capacitor suitable for output filtering and smoothing in DC–DC converters and power modules.
• High-Frequency Decoupling — 60 mΩ ESR at 100 kHz and 900 mA ripple rating support decoupling in high-frequency switching circuits and power rails.
• Industrial Electronics — Wide −55°C to +125°C operating range and 3000 h endurance at 125°C enable use in industrial power and control equipment exposed to elevated temperatures.

Unique Advantages

• Compact, high-performance SMD package: Small φ6.3 × 5.8 mm can provides high capacitance and power handling in a space-efficient SMD form factor.
• High-frequency readiness: 60 mΩ ESR at 100 kHz and 900 mA ripple at 300 kHz deliver the low-loss behavior needed for switching regulators and fast transient suppression.
• Extended high-temperature life: Endurance rated at 3000 hours at 125°C supports long-term reliability in elevated-temperature environments.
• Reflow process compatible: Designed for SMD lead-free reflow profiles up to a 260°C peak, easing integration into standard SMT assembly flows.
• Supply chain friendly packaging: Embossed carrier tape with moisture-proof packing supports automated placement and handling.
• Standards compliance: RoHS compliance ensures alignment with environmental requirements for lead-restricted products.

Why Choose RKS1V180MCNAFEGS?

The RKS1V180MCNAFEGS combines conductive-polymer aluminum solid electrolyte technology with a compact SMD can to deliver low ESR, high ripple capability and reliable performance up to 125°C. It is positioned for designs that require efficient high-frequency decoupling and robust operation under elevated temperature and continuous load conditions.

This part is well suited to engineers developing power converters, high-frequency switching systems and industrial electronics where space is constrained but performance and long-term endurance are critical. Its reflow compatibility and tape-and-reel packaging support streamlined manufacturing and assembly.

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