RKS1V390MCNAHJGS

The RKS1V390MCNAHJGS is a surface-mount conductive polymer aluminum solid electrolytic capacitor in Nichicon’s RKS series, specified at 39 µF and 35 V. It combines low ESR and high allowable ripple current in a compact radial can SMD package for general-purpose electronic designs.

Engineered for demanding thermal and ripple environments, this part delivers 3000 hours of endurance at 125°C and a wide operating temperature range from −55°C to 125°C, supporting robust power filtering and decoupling in space-constrained assemblies.

Key Features

• Construction & Mounting Conductive polymer aluminum solid electrolytic capacitor designed for surface-mount applications; package case is a radial can SMD sized φ8 × 10 mm (L: 1 × D: 0.8 cm).
• Capacitance & Tolerance 39 µF nominal capacitance with tolerance −20% to +20% (measured at 120 Hz, 20°C).
• Voltage Rating Rated for 35 V DC operation.
• Low ESR & High-Frequency Performance ESR of 27 mΩ measured at 20°C/100 kHz, supporting high-frequency filtering and stable behavior under dynamic loads.
• High Allowable Ripple Current Low-frequency ripple current 160 mA (120 Hz) and high-frequency ripple current 1.6 A (300 kHz) for effective suppression of AC components on power rails.
• Leakage Current Specified leakage current up to 100 µA after rated voltage application.
• Temperature & Endurance Operating range −55°C to 125°C with load-life endurance of 3000 hours at 125°C.
• Packaging Supplied in embossed carrier taping with moisture-proof packing for reliable surface-mount assembly and handling.
• Environmental Compliance RoHS-compliant construction.

Typical Applications

• Power supply decoupling and bulk filtering — Low ESR and high ripple capability make this capacitor suitable for smoothing and decoupling in compact power supplies and regulator outputs.
• DC–DC converter outputs — High-frequency ripple handling and stable ESR at 100 kHz support use on converter output stages where space and thermal endurance matter.
• Industrial electronics — Wide −55°C to 125°C operating range and 3000 h endurance at 125°C suit general-purpose industrial circuits requiring long-term reliability.

Unique Advantages

• Low ESR for efficient filtering: 27 mΩ ESR at 100 kHz reduces voltage ripple and improves transient response in power circuits.
• High ripple current capability: 1.6 A at high frequency and 160 mA at low frequency allow reliable handling of AC stress in compact designs.
• Extended high-temperature life: 3000 hours at 125°C provides durability for designs exposed to elevated temperatures.
• Compact SMD radial can package: φ8 × 10 mm form factor supports high-density PCBs while delivering electrolytic capacitance values.
• Supply chain readiness: Mass production status and embossed carrier taping with moisture-proof packing support volume assembly operations.
• Regulatory compliance: RoHS-compliant materials align with environmental requirements.

Why Choose RKS1V390MCNAHJGS?

RKS1V390MCNAHJGS positions itself as a reliable, compact solution for designers needing low-ESR, high-ripple-capable capacitors in surface-mount formats. Its conductive polymer construction, combined with a wide operating temperature range and 3000-hour endurance at 125°C, makes it suited to power-critical and thermally demanding general-purpose applications.

This part is ideal for engineers seeking a proven SMD electrolytic capacitor to simplify board layout while maintaining performance for decoupling, filtering, and converter output stabilization. Its packaging and production readiness support efficient assembly and supply continuity for volume designs.

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