RKS1D220MCNAFEGS

The RKS1D220MCNAFEGS is a surface-mount conductive-polymer aluminum solid electrolytic capacitor designed for compact, high-temperature electronic designs. It delivers 22 µF capacitance at 20 V with low ESR and specified high-frequency ripple capability, making it suitable for demanding power electronics environments.

Built for reliability in elevated-temperature applications, this RoHS-compliant part combines a small φ6.3×5.8 mm SMD package with a 3000 hour rated life at 125°C and reflow compatibility for lead‑free assembly processes.

Key Features

• Capacitance & Voltage — 22 µF rated capacitance at 20 V with polarization suitable for DC power circuits; tolerance ±20% (–20% to +20%).
• Low Loss / ESR — Tangent of loss angle (tanδ) 0.12 measured at 20°C, 120 Hz, and ESR 50 mΩ measured at 20°C, 100 kHz for improved high-frequency performance.
• High Ripple Handling — Specified low-frequency ripple current of 90 mA (120 Hz) and high-frequency ripple current of 900 mA (300 kHz), supporting switching and high‑frequency power stages.
• High-Temperature Endurance — Rated for operation from –55°C to +125°C with a load life (endurance) of 3000 hours at 125°C.
• Leakage Current — Leakage current specified at 100 µA (after standard conditioning), useful for predictable bias behavior in power rails.
• SMD Package & Assembly — Compact radial can SMD package (φ6.3×5.8 mm) with embossed carrier taping and moisture-proof packing; compatible with lead‑free reflow soldering (peak 260°C per series specification).
• Regulatory — RoHS compliant.

Typical Applications

• Switching Power Supplies — Used for output smoothing and bulk decoupling where the 900 mA high‑frequency ripple rating at 300 kHz and low ESR (50 mΩ) support high‑speed converters.
• Power Regulation Modules — Suited for local decoupling on DC‑DC modules thanks to its 22 µF capacitance, low tanδ, and tight footprint (φ6.3×5.8 mm).
• High-Temperature Electronics — Applicable in systems that require continuous operation at elevated temperatures, backed by a 3000 hour endurance rating at 125°C.

Unique Advantages

• High ripple current capability: 900 mA at 300 kHz and 90 mA at 120 Hz enable use in both high-frequency switching and lower-frequency bulk filtering.
• Low ESR and controlled loss: 50 mΩ ESR at 100 kHz and tanδ 0.12 (20°C, 120 Hz) reduce power dissipation and improve stability in AC conditions.
• Thermal robustness: Rated for –55°C to +125°C operation with a 3000 hour life at 125°C, supporting designs that demand extended high-temperature reliability.
• Compact SMD footprint: φ6.3×5.8 mm package and embossed carrier taping simplify board-level placement and automated assembly.
• Reflow-compatible: Specified for lead‑free reflow soldering up to a 260°C peak, aligning with modern assembly processes.
• Predictable leakage behavior: Maximum leakage current of 100 µA for stable bias performance after conditioning.

Why Choose RKS1D220MCNAFEGS?

RKS1D220MCNAFEGS combines conductive‑polymer aluminum technology with a compact SMD can to deliver low ESR, high ripple handling, and long-term stability in elevated temperatures. Its specifications—22 µF at 20 V, 50 mΩ ESR at 100 kHz, 900 mA high‑frequency ripple rating, and 3000 h endurance at 125°C—make it well suited for engineers designing robust power delivery circuits and thermal-challenging applications.

This part is appropriate for designs that prioritize high-frequency performance, thermal endurance, and automated assembly. The embossed carrier taping and moisture‑proof packaging facilitate production scale‑up, while RoHS compliance supports regulatory requirements.

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