RKS1C181MCNAHFGS

The RKS1C181MCNAHFGS from Nichicon is a conductive polymer aluminum solid electrolytic capacitor in an SMD can package, offering 180 µF capacitance at a 16 V rating. It is part of the RKS series designed for applications that require low ESR, high allowable ripple current, and extended high-temperature endurance.

Targeted at general-purpose electronic designs, this capacitor delivers compact, high-capacitance decoupling and smoothing across a wide temperature range while supporting robust lifetime performance at elevated temperatures.

Key Features

• Capacitance & Voltage — 180 µF nominal capacitance with a 16 V rated voltage and capacitance tolerance of −20% to +20% at 20°C, 120 Hz.
• Low ESR — Equivalent series resistance of 30 mΩ specified at 20°C and 100 kHz, enabling efficient high-frequency performance.
• High Ripple Current — Low-frequency ripple current of 160 mA (120 Hz) and high-frequency ripple capability of 1.6 A (300 kHz) for demanding decoupling and smoothing tasks.
• Temperature & Endurance — Rated operating range from −55°C to +125°C with a load life of 3000 hours at 125°C, providing stable performance in thermally demanding environments.
• SMD Can Package — Compact φ8 × 6.7 mm can-style SMD package (radial, can - SMD) for space-constrained board designs and automated placement.
• Manufacturing & Handling — Supplied in embossed carrier taping with moisture-proof packing; compatible with lead-free reflow soldering conditions up to a 260°C peak as specified for the series.
• Leakage & tan δ — Specified leakage current of 144 µA and tangent of loss angle (tan δ) of 0.12 (measured at 20°C, 120 Hz), supporting predictable loss and leakage behavior.
• RoHS Compliant — Meets RoHS requirements as indicated in the product information.

Typical Applications

• General-purpose electronics — Bulk decoupling and energy storage in compact consumer and industrial boards where a small SMD high-capacitance solution is needed.
• High-frequency power filtering — Local decoupling and ripple smoothing in circuits operating at high switching frequencies, supported by low ESR and 1.6 A high-frequency ripple rating.
• Thermally demanding systems — Power rails and filtering stages exposed to elevated temperatures, leveraging the −55°C to +125°C range and 3000-hour endurance at 125°C.

Unique Advantages

• High ripple tolerance: 1.6 A high-frequency ripple current rating reduces thermal stress in fast-switching circuits and improves voltage stability.
• Low loss at high frequency: 30 mΩ ESR at 100 kHz and tan δ of 0.12 at 120 Hz help maintain efficiency in high-frequency decoupling applications.
• Long elevated-temperature life: 3000 hours at 125°C provides extended reliability for designs operating in harsh thermal environments.
• Compact SMD form factor: φ8 × 6.7 mm SMD can offers high capacitance in a small footprint suitable for automated assembly.
• Reflow-compatible handling: Designed for lead-free reflow soldering (260°C peak correspondence) and supplied in moisture-proof embossed taping for manufacturing readiness.
• Predictable leakage and stability: Specified leakage current and tolerance bands allow straightforward margining in power management designs.

Why Choose RKS1C181MCNAHFGS?

RKS1C181MCNAHFGS positions itself as a compact, high-capacitance SMD solution for engineers who need low ESR, strong high-frequency ripple handling, and verified long-term performance at elevated temperatures. Its conductive polymer aluminum construction and series-level specifications deliver stable electrical characteristics and manufacturing compatibility for automated assembly.

This part is well suited to designers of general-purpose electronic systems and power delivery stages that require reliable decoupling and smoothing across a wide temperature range, offering predictable behavior and vendor-backed series specifications for durability and handling.

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