RKS1H220MCNAFEGS

The RKS1H220MCNAFEGS is a surface-mount conductive polymer aluminum solid electrolytic capacitor in Nichicon’s RKS series. It provides 22 µF capacitance at 50 V in a compact radial can SMD package sized φ6.3 × 5.8 mm and is designed for high-frequency, high-temperature electronic applications.

With low ESR and high allowable ripple current, a wide operating temperature range (−55 °C to 125 °C) and a rated endurance of 3000 hours at 125 °C, this part targets demanding power and filtering tasks where compact size, thermal resilience and reliable high-frequency performance are required.

Key Features

• Capacitance & Tolerance — 22 µF nominal capacitance with tolerance of −20% to +20% at 120 Hz, 20 °C.
• Rated Voltage — 50 V DC rating for medium-voltage rail applications.
• Low ESR & High-Frequency Performance — ESR of 80 mΩ measured at 20 °C/100 kHz and a high-frequency ripple current rating of 750 mA at 300 kHz, supporting effective HF smoothing and decoupling.
• Ripple & Leakage — Low-frequency ripple current 75 mA at 120 Hz; leakage current specified at 100 µA.
• Thermal and Endurance — Operating temperature range −55 °C to 125 °C and a load life (endurance) of 3000 hours at 125 °C under rated voltage.
• Package & Assembly — Compact radial can SMD package φ6.3 × 5.8 mm, surface-mount land size 6.6 × 6.6 mm; supplied in embossed carrier taping with moisture-proof packing and compatible with lead-free reflow (soldering conditions up to 260 °C as specified).
• Dielectric Loss — Tan δ (dissipation factor) 0.12 at 20 °C, 120 Hz, for predictable AC performance.
• RoHS Compliance — Conforms to RoHS requirements.

Typical Applications

• Power supply decoupling — Low ESR and high ripple current capability make this capacitor suitable for decoupling and local energy storage on power rails in compact SMD designs.
• High-frequency filtering — 80 mΩ ESR at 100 kHz and 750 mA ripple current at 300 kHz support filtering in high-frequency switching circuits.
• Industrial and telecom electronics — Extended temperature range (−55 °C to 125 °C) and 3000-hour endurance at 125 °C enable use in thermally demanding environments and long-life equipment.

Unique Advantages

• Designed for high ripple environments: 750 mA ripple current at 300 kHz combined with low ESR (80 mΩ @100 kHz) reduces voltage ripple on high-frequency rails.
• High-temperature endurance: Rated for 3000 hours at 125 °C, delivering predictable capacitance and ESR retention under prolonged thermal stress.
• Compact SMD can: φ6.3 × 5.8 mm footprint with 6.6 × 6.6 mm recommended land pattern saves board area while providing solid capacitance density.
• Assembly-ready packaging: Supplied in embossed carrier taping with moisture-proof packing and compatible with lead-free reflow up to 260 °C to support modern SMT processes.
• Controlled leakage and loss: Leakage current specified at 100 µA and tan δ of 0.12 at 120 Hz provide predictable behavior for precision power designs.

Why Choose RKS1H220MCNAFEGS?

The RKS1H220MCNAFEGS combines conductive polymer aluminum technology with a compact SMD can to deliver reliable high-frequency performance, low ESR and robust thermal endurance. Its ratings—50 V, 22 µF, low ESR at 100 kHz, 750 mA HF ripple current and 3000-hour life at 125 °C—make it well suited for engineers addressing tight board space, elevated temperatures and demanding ripple conditions.

This part is aimed at designs requiring stable capacitance and ESR under heat and load, such as power supply decoupling and HF filtering in industrial and telecommunications equipment, providing predictable long-term behavior and assembly compatibility for lead-free manufacturing.

Request a quote or contact sales to discuss volume pricing, lead times and availability for RKS1H220MCNAFEGS.