RKS1K180MCNAHFGS

The RKS1K180MCNAHFGS from Nichicon is a surface-mount conductive-polymer aluminum solid electrolytic capacitor offering 18 µF capacitance at an 80 V rating. Designed as a general-purpose SMD capacitor in the RKS series, it combines low ESR and high allowable ripple current with a compact φ8 × 6.7 mm can-style package and embossed carrier tape packaging for automated assembly.

With a wide operating range of −55 °C to 125 °C and a rated life of 3000 hours at 125 °C, this part targets applications that require stable performance under elevated temperature and continuous ripple stress while remaining RoHS compliant.

Key Features

• Electrical Performance — 18 µF capacitance with ±20% tolerance and a rated voltage of 80 V; tan δ (DF) specified at 0.12 (20 °C, 120 Hz) for predictable loss characteristics.
• Low ESR and High Frequency Behavior — ESR specified at 40 mΩ measured at 20 °C / 100 kHz, supporting high-frequency decoupling and stable impedance at RF currents.
• High Ripple Current Capability — Low-frequency ripple handling of 110 mA (120 Hz) and high-frequency ripple capability of 1.1 A (300 kHz), enabling effective smoothing under mixed-frequency stress.
• Reliability and Lifetime — Endurance rating of 3000 hours at 125 °C (rated voltage) with defined limits for capacitance change, tan δ and ESR after life testing.
• Wide Temperature Range — Rated for operation from −55 °C to 125 °C to support elevated-temperature applications.
• Leakage Current — Specified leakage current up to 100 µA, suitable for general-purpose circuits requiring controlled stand-by loss.
• Package and Assembly — φ8 × 6.7 mm radial can-style SMD package supplied in embossed carrier taping with moisture-proof packing for surface-mount production lines.
• Compliance — RoHS compliant to support environmental regulatory requirements.

Typical Applications

• Power-supply filtering and decoupling — Low ESR (40 mΩ at 100 kHz) and high ripple-current ratings make this capacitor appropriate for smoothing and decoupling in general-purpose power stages.
• High-frequency circuitry — Measured ESR at 100 kHz and specified high-frequency ripple capability (1.1 A at 300 kHz) suit applications with significant HF current components.
• Elevated-temperature environments — Rated operation to 125 °C and 3000-hour endurance at 125 °C provide reliability for systems exposed to prolonged high-temperature conditions.

Unique Advantages

• Low ESR for efficient operation: 40 mΩ ESR at 100 kHz reduces power loss and supports effective high-frequency decoupling.
• High ripple handling: 110 mA at 120 Hz and 1.1 A at 300 kHz enable handling of both low- and high-frequency ripple components without excessive heating.
• Extended high-temperature endurance: 3000 hours rated life at 125 °C provides predictable long-term behavior in thermally demanding designs.
• Compact SMD can package: φ8 × 6.7 mm footprint in embossed carrier tape simplifies integration into automated surface-mount assembly flows.
• Controlled leakage and loss characteristics: Leakage current up to 100 µA and tan δ 0.12 (20 °C, 120 Hz) help maintain stable performance in power-sensitive circuits.
• Regulatory alignment: RoHS compliance supports placement in products subject to environmental directives.

Why Choose RKS1K180MCNAHFGS?

RKS1K180MCNAHFGS positions itself as a reliable, surface-mount conductive-polymer aluminum capacitor for general-purpose electronics that demand low ESR, strong ripple-current capability, and long-term stability at elevated temperatures. Its combination of 18 µF at 80 V, 40 mΩ ESR (100 kHz), and 3000-hour endurance at 125 °C makes it a practical choice for designs where sustained performance and assembly-ready packaging are required.

Engineers specifying this Nichicon RKS series part will benefit from a component that balances electrical performance and thermal robustness while fitting standard SMD manufacturing processes and RoHS-driven product requirements.

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