RFS1C390MCN1GS

The RFS1C390MCN1GS is a conductive polymer aluminum solid electrolytic capacitor in a compact surface-mount radial can package. It delivers 39 µF nominal capacitance at 16 V with low ESR and high ripple-current capability, targeting general-purpose power stabilization and smoothing in compact electronic assemblies.

Designed for reliable operation across a wide temperature range and long life, this SMD capacitor is suitable for applications requiring low impedance at high frequency, surface-mount assembly, and production-ready packaging.

Key Features

• Dielectric / Construction Conductive polymer aluminum solid electrolytic capacitor offering solid electrolyte performance in an SMD radial can.
• Capacitance & Voltage 39 µF nominal capacitance with ±20% tolerance, rated for 16 V DC.
• Low ESR & High-Frequency Performance ESR of 35 mΩ measured at 20°C / 100 kHz, delivering low impedance at high frequencies for improved power integrity.
• High Ripple Current Capability Rated ripple current of 207 mA at 120 Hz and 2.07 A at 300 kHz, supporting both low- and high-frequency AC stress on power rails.
• Leakage Current Specified leakage current of 124 µA after standard conditioning, suitable for power-sensitive circuits.
• Thermal and Reliability Specs Rated operating temperature −55°C to +105°C with an endurance rating of 2000 hours at 105°C under rated voltage.
• Package & Assembly Compact φ5 × 5.7 mm case (L×D), surface-mount radial can design, supplied in embossed carrier taping with moisture-proof packing for automated assembly.
• RoHS Compliance Compliant with RoHS requirements for lead-free manufacturing environments.

Typical Applications

• General-purpose power filtering — Low ESR and high ripple current make this capacitor suitable for smoothing and decoupling on DC power rails in compact electronics.
• High-frequency power stages — The 35 mΩ ESR at 100 kHz and 2.07 A ripple rating at 300 kHz support stabilization in switched-mode power supplies and DC–DC converter outputs.
• Surface-mount assemblies — Small φ5 × 5.7 mm SMD radial can fits tight board layouts while providing solid-electrolyte performance for space-constrained designs.

Unique Advantages

• Low impedance at high frequency: 35 mΩ ESR at 100 kHz reduces voltage ripple and improves transient response on power rails.
• Dual-frequency ripple capability: Specified ripple ratings at both 120 Hz (207 mA) and 300 kHz (2.07 A) address a wide range of AC stress conditions.
• Compact SMD form factor: φ5 × 5.7 mm package offers a small footprint for dense board layouts while maintaining solid electrolyte characteristics.
• Robust thermal endurance: Rated for −55°C to +105°C with 2000 hours life at 105°C, supporting long-term reliability in elevated-temperature environments.
• Production-ready packaging: Delivered in embossed carrier taping with moisture-proof packing for automated pick-and-place and reflow processes.
• Controlled leakage: 124 µA leakage current specification enables predictable behavior in power-sensitive circuits.

Why Choose RFS1C390MCN1GS?

The RFS1C390MCN1GS combines conductive polymer aluminum construction, low ESR, and strong ripple-current handling in a compact surface-mount radial can. Its electrical and thermal specifications make it well suited for designers who need dependable power-rail filtering and smoothing in space-constrained assemblies.

With RoHS compliance, production-ready packaging, and a 2000-hour endurance rating at 105°C, this capacitor is positioned for use in designs requiring consistent performance, manufacturability, and long-term thermal stability.

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