RKS1H180MCNAHFGS

The RKS1H180MCNAHFGS is a surface-mount conductive polymer aluminum solid electrolytic capacitor from Nichicon's RKS series. It delivers 18 µF capacitance at a 50 V rating in a compact φ8 × 6.7 mm SMD can, designed for applications that require high ripple tolerance and elevated temperature endurance.

Key value propositions include low ESR (30 mΩ at 100 kHz), high allowable ripple current (up to 1.6 A at high frequency), and a long load life of 3000 hours at 125 °C, making it suitable for demanding power filtering and decoupling tasks in space-constrained assemblies.

Key Features

• Capacitance & Voltage — 18 µF nominal capacitance with a rated voltage of 50 V and tolerance of −20% to +20% (measured at 20 °C, 120 Hz).
• Conductive Polymer Chemistry — Solid conductive polymer aluminum construction for stable electrical characteristics and reduced equivalent series resistance compared with traditional wet electrolytic types.
• Low ESR — 30 mΩ ESR specified at 20 °C, 100 kHz for improved efficiency in high-frequency decoupling and reduced losses.
• High Ripple Current Capability — Low-frequency ripple current of 160 mA at 120 Hz and high-frequency ripple current up to 1.6 A at 300 kHz to handle demanding supply conditions.
• High-Temperature Endurance — Load life of 3000 hours at 125 °C, supporting extended operation in elevated-temperature environments.
• Reliability Parameters — Leakage current specified at 100 µA and tan δ (loss tangent) of 0.12 at 20 °C, 120 Hz, consistent with stable performance over time.
• SMD Packaging & Assembly — Radial can SMD package (φ8 × 6.7 mm) supplied in embossed carrier taping with moisture-proof packing; reflow-capable under the series' recommended soldering profile.
• RoHS Compliant — Meets applicable RoHS requirements for restricted substances.

Typical Applications

• Power supply output filtering — Smoothing and decoupling of DC output rails where low ESR and high ripple capability reduce voltage ripple and improve regulator stability.
• DC–DC converter output capacitors — Point-of-load filtering in converters that demand compact SMD solutions with robust high-frequency ripple handling.
• Industrial and telecom power modules — Filtering and energy smoothing in modules that operate at elevated temperatures and require long endurance.
• Power electronics sub-assemblies — Local decoupling for power stages where small footprint and reliable high-temperature performance are required.

Unique Advantages

• High ripple tolerance: Rated for up to 1.6 A at high frequency and 160 mA at low frequency, enabling use in high-current switching environments.
• Low loss operation: 30 mΩ ESR and tan δ of 0.12 (20 °C, 120 Hz) reduce dissipation and thermal rise in demanding circuits.
• Compact SMD can: φ8 × 6.7 mm package offers a small board footprint while retaining high capacitance and current capability.
• Extended high-temperature life: 3000 hours at 125 °C supports reliable operation in elevated-temperature applications and long service intervals.
• Manufacturing-ready packaging: Supplied in embossed carrier taping with moisture-proof packing to support automated placement and storage handling.
• Standards-compliant materials: Conductive polymer construction and RoHS compliance for modern assembly and environmental requirements.

Why Choose RKS1H180MCNAHFGS?

RKS1H180MCNAHFGS is positioned for designs that require a compact, SMD conductive polymer capacitor with low ESR, strong ripple-current capability, and proven high-temperature endurance. Its combination of 18 µF/50 V electrical rating, 30 mΩ ESR at 100 kHz, and 3000-hour life at 125 °C makes it well suited to power conversion and filtering tasks in constrained layouts.

Engineered as part of Nichicon's RKS series, this part offers a balance of performance and manufacturability—delivered in embossed carrier taping with moisture-proof packing—to help streamline assembly while maintaining long-term reliability in harsh operating environments.

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