RKS1E180MCNAHFGS

The RKS1E180MCNAHFGS is a surface‑mount conductive polymer aluminum solid electrolytic capacitor designed for compact power and high‑frequency applications. It delivers 18 µF capacitance at a 25 V rating with low equivalent series resistance and engineered endurance for elevated temperatures.

Its combination of low ESR (30 mΩ at 100 kHz), high allowable ripple current (1.6 A at 300 kHz), and a wide operating temperature range (‑55 °C to +125 °C) makes it suitable for power‑rail decoupling, smoothing and bulk support in space‑constrained electronic designs.

Key Features

• Capacitance and Voltage: 18 µF nominal capacitance with a 25 V rated voltage and ±20% tolerance, providing predictable energy storage for power rails and decoupling.
• Conductive Polymer Electrolyte: Solid polymer construction for stable electrical performance and reduced impedance compared with traditional wet electrolytic types.
• Low ESR & High‑Frequency Performance: ESR of 30 mΩ measured at 100 kHz and a high‑frequency ripple current capability of 1.6 A at 300 kHz, enabling effective filtering in switching power supplies and high‑speed circuits.
• Ripple Current & Low‑Frequency Capability: Rated ripple current of 160 mA at 120 Hz for low‑frequency smoothing and 1.6 A at 300 kHz for high‑frequency applications, supporting mixed frequency environments.
• Thermal Endurance: Rated operating temperature range from ‑55 °C to +125 °C with a 3000‑hour rated life at 125 °C, supporting long‑term operation under elevated temperature stress.
• Leakage and Dissipation: Leakage current specified at 100 µA and tanδ (DF) of 0.12 measured at 20 °C, 120 Hz, giving predictable loss characteristics for design calculations.
• Surface‑Mount Package: Compact φ8 × 6.7 mm can‑style SMD package with embossed carrier taping and moisture‑proof packing for automated assembly and reliable board mounting.
• RoHS Compliant: Conforms to RoHS requirements for restricted substances.

Typical Applications

• DC‑DC Converter Output Filtering: Low ESR and high HF ripple capability smooth switching transients and stabilize regulator outputs in compact power modules.
• Power Rail Decoupling: Provides bulk and high‑frequency decoupling on main and auxiliary rails in communications and industrial electronics, improving transient response.
• Input Filtering for Power Supplies: Handles mixed low‑ and high‑frequency ripple currents for input filters on board‑level power supplies and adapters.
• Industrial and Embedded Electronics: Suitable for embedded controllers and instrumentation that require stable capacitance across ‑55 °C to +125 °C and long life under thermal stress.

Unique Advantages

• Balanced Low ESR and High Ripple Handling: 30 mΩ ESR at 100 kHz plus 1.6 A HF ripple current supports both high‑frequency decoupling and bulk energy delivery without large packages.
• High Temperature Endurance: 3000 hours rated life at 125 °C offers designers predictable longevity in thermally demanding environments.
• Compact Surface‑Mount Form Factor: φ8 × 6.7 mm SMD can allows placement in space‑constrained layouts while supporting automated PCB assembly.
• Stable Leakage and Loss Characteristics: 100 µA leakage and tanδ 0.12 (20 °C, 120 Hz) make behavior easy to model in power budgets and thermal designs.
• Reflow‑Compatible Packaging: Embossed carrier taping with moisture‑proof packing supports standard SMD handling and assembly flows.

Why Choose RKS1E180MCNAHFGS?

RKS1E180MCNAHFGS is positioned for engineers who need a compact, reliable capacitor that combines low ESR, strong high‑frequency ripple capability, and long life at elevated temperatures. Its conductive polymer construction and surface‑mount can package deliver stable electrical performance that simplifies power‑stage design and reduces board area compared with larger bulk solutions.

This part is well suited to designers of DC‑DC converters, power management circuits, and embedded systems requiring robust decoupling under thermal stress. The clear specifications for ESR, ripple current, leakage, and endurance help you predict system behavior and plan for long‑term reliability.

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