RKS1V220MCNAFEGS

The RKS1V220MCNAFEGS is a surface-mount conductive polymer aluminum electrolytic capacitor in the Nichicon RKS series. It provides 22 µF capacitance at a 35 V rating in a compact φ6.3 × 5.8 mm SMD can, designed for high-temperature and high-frequency power applications.

Targeted at power electronics and industrial control designs, this part combines low ESR, broad temperature tolerance, and a 3000-hour endurance at 125 °C to support reliable filtering, decoupling and energy-hold applications where long life and compact size are required.

Key Features

• Capacitance and Voltage: 22 µF nominal capacitance with ±20% tolerance, rated for 35 V operation.
• Low ESR for High-Frequency Performance: ESR specified at 60 mΩ measured at 20 °C / 100 kHz, supporting effective high-frequency filtering.
• High Allowable Ripple Current: Low-frequency ripple current 90 mA (120 Hz) and high-frequency ripple current 900 mA (300 kHz) for robust power conditioning.
• Loss Tangent (tan δ): tan δ = 0.12 (measured at 20 °C, 120 Hz), enabling predictable dissipation characteristics in AC environments.
• Wide Temperature Range and Long Life: Rated for −55 °C to 125 °C with a load life of 3000 hours at 125 °C, delivering durability in elevated-temperature systems.
• Leakage Current: Leakage current is specified at 100 µA (after rated voltage application), supporting low standby losses.
• Surface-Mount Can Package: φ6.3 × 5.8 mm SMD radial can with recommended land pattern L: 6.6 × W: 6.6 mm, packaged in embossed carrier taping with moisture-proof packing for automated assembly.
• Reflow Compatibility: Designed for lead-free reflow soldering with a peak temperature correspondence to 260 °C as specified for the series.
• Regulatory Compliance: RoHS compliant.

Typical Applications

• Power supply decoupling: Local decoupling for DC–DC converters and point-of-load modules where low ESR and high ripple capability improve transient response.
• High-frequency power filtering: AC and switching noise suppression in telecom and computing power rails benefiting from 60 mΩ ESR at 100 kHz.
• Industrial controls and instrumentation: Bulk smoothing and hold-up for circuits operating across −55 °C to 125 °C and requiring a 3000-hour high-temperature life.
• Backup and hold-up circuits: Energy storage for short-term hold-up tasks in embedded and control systems where compact size and predictable leakage are needed.

Unique Advantages

• Compact, high-voltage SMD solution: 22 µF at 35 V in a φ6.3 × 5.8 mm can minimizes board area while providing sufficient voltage margin for many power designs.
• Designed for high-frequency loads: 60 mΩ ESR at 100 kHz and 900 mA ripple at 300 kHz enable effective suppression of switching noise and improved converter stability.
• Extended high-temperature endurance: 3000 hours at 125 °C supports prolonged operation in hot environments and reduces replacement frequency in long-life equipment.
• Assembly-friendly packaging: Embossed carrier taping with moisture-proof packing and reflow compatibility simplify automated SMT assembly and handling.
• Predictable leakage performance: Leakage current specified at 100 µA helps designers budget standby power and manage safety margins.
• RoHS compliant: Meets environmental requirements for lead-free manufacturing processes.

Why Choose RKS1V220MCNAFEGS?

RKS1V220MCNAFEGS positions itself as a compact, high-temperature-capable SMD capacitor that balances low ESR and high ripple capability with a long rated life at 125 °C. Its electrical characteristics make it suitable for designers seeking reliable decoupling and filtering in power-dense and thermally demanding systems.

This part is well suited to engineers building industrial controls, telecom and computing power stages, or embedded systems that require predictable performance, automated assembly compatibility, and long-term robustness from a proven conductive polymer aluminum capacitor series.

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