RKS1C221MCNAHHGS

The RKS1C221MCNAHHGS is a surface-mount, polarized conductive polymer aluminum solid electrolytic capacitor with a nominal capacitance of 220 µF and a rated voltage of 16 V. It combines high capacitance in a compact SMD radial-can package (φ8 × 8.7 mm) for general-purpose PCB power applications.

Designed for demanding thermal and ripple environments, this part offers low equivalent series resistance (30 mΩ at 100 kHz), high allowable ripple current (1.6 A at 300 kHz, 160 mA at 120 Hz), and a rated endurance of 3000 hours at 125 °C. The device is specified for operation from −55 °C to +125 °C and is compatible with lead-free reflow profiles up to a 260 °C peak as described in the series datasheet.

Key Features

• Capacitance & Tolerance — 220 µF nominal with tolerance of −20% to +20% at 120 Hz, 20 °C.
• Voltage Rating — Rated for 16 V operation.
• Low ESR — 30 mΩ ESR measured at 100 kHz and 20 °C for improved high-frequency performance.
• High Ripple Current Capability — High-frequency ripple current of 1.6 A at 300 kHz and low-frequency ripple current of 160 mA at 120 Hz, supporting demanding power-conditioning tasks.
• Wide Temperature Range — Specified to operate from −55 °C to +125 °C for extended environment coverage.
• Long Life / Endurance — Rated life of 3000 hours at 125 °C under rated voltage conditions.
• Loss Tangent (tan δ) — tan δ = 0.12 at 20 °C, 120 Hz, providing defined loss behavior for AC applications.
• Leakage Current — Specified leakage current 176 µA after standard conditioning.
• Package & Mounting — Surface-mount radial can (φ8 × 8.7 mm) supplied in embossed carrier taping with moisture-proof packing for automated assembly.
• RoHS Compliance — Series documentation indicates compliance with the RoHS directive (2011/65/EU, (EU)2015/863).
• Soldering/Reflow — Compatible with lead-free reflow soldering to a 260 °C peak per the series soldering guidance.

Typical Applications

• General-purpose power filtering — Provides bulk capacitance and smoothing on 16 V rails where a polarized SMD capacitor is required.
• DC–DC converter output — Low ESR and high ripple current rating support output filtering in compact power modules.
• Board-level decoupling and energy storage — Compact radial-can SMD package for local energy storage on densely packed PCBs operating across a wide temperature range.

Unique Advantages

• High ripple endurance: The combination of 1.6 A high-frequency ripple capability and 160 mA low-frequency ripple rating helps maintain performance in dynamic power circuits.
• Measured low ESR: 30 mΩ at 100 kHz delivers predictable impedance for high-frequency decoupling and stability in power systems.
• Extended high-temperature life: 3000 hours at 125 °C provides a clear reliability target for designs exposed to elevated operating temperatures.
• Compact SMD radial-can form factor: φ8 × 8.7 mm package balances high capacitance with a small PCB footprint and automated assembly readiness.
• Defined electrical characteristics: Specified tan δ, leakage current, and tolerance values make it straightforward to model behavior in circuit simulations and BOM selection.
• Assembly-friendly packaging: Embossed carrier taping and moisture-proof packing support high-throughput surface-mount manufacturing.

Why Choose RKS1C221MCNAHHGS?

RKS1C221MCNAHHGS is positioned for designers who need a compact, surface-mount polarized capacitor offering high capacitance, low ESR, and robust ripple-handling in thermal stress conditions. Its explicit specifications—220 µF at 16 V, 30 mΩ ESR at 100 kHz, 1.6 A high-frequency ripple current, and 3000-hour endurance at 125 °C—allow engineers to make verifiable design trade-offs for power filtering and energy storage on compact PCBs.

This part suits general-purpose power electronics and board-level power conditioning where predictable performance, high-temperature endurance, and automated assembly compatibility are required. The clear datasheet parameters and RoHS compliance help streamline qualification and procurement for production designs.

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