RKS1E180MCNAFEGS

The RKS1E180MCNAFEGS is a surface‑mount conductive polymer aluminum electrolytic capacitor from Nichicon’s RKS series. It provides 18 µF nominal capacitance at a 25 V rating in a compact φ6.3 × 5.8 mm SMD can designed for power‑supply and high‑frequency filtering tasks.

Designed for applications that require low equivalent series resistance, high allowable ripple current and extended high‑temperature endurance, this part supports robust decoupling and smoothing in industrial, communications and computing power stages.

Key Features

• Electrical performance — 18 µF nominal capacitance with ±20% tolerance and tanδ 0.12 measured at 20°C, 120 Hz, enabling predictable AC behavior in targeted frequency bands.
• Low ESR — 50 mΩ ESR specified at 20°C, 100 kHz, supporting low-loss operation in high‑frequency circuits.
• High ripple capability — Rated ripple currents of 90 mA at 120 Hz (low frequency) and 900 mA at 300 kHz (high frequency) to handle switching and high‑frequency noise currents.
• Leakage and stability — Leakage current specified at 100 µA, with endurance characteristics that control capacitance, tanδ and ESR over life.
• High‑temperature endurance — Load life of 3000 hours at 125°C, supporting extended operation in elevated temperature environments.
• Compact SMD package — Radial can SMD package (φ6.3 × 5.8 mm) with embossed carrier taping and moisture‑proof packing for automated assembly.
• Wide operating temperature — Rated from −55°C to +125°C for use across a broad thermal range.
• RoHS compliant — Meets RoHS requirements as noted in the product data.
• Lead‑free reflow compatibility — Series datasheet specifies lead‑free reflow soldering compatibility up to a 260°C peak (per the RKS series soldering profile).

Typical Applications

• Power conversion (DC‑DC converters) — Bulk and output-stage smoothing where low ESR and high ripple capability reduce voltage ripple and improve regulator stability.
• Switching power supplies — High‑frequency filtering on switching nodes and decoupling for power stages that require low‑loss capacitors at 100 kHz–300 kHz bands.
• Industrial control and instrumentation — Local energy storage and noise suppression in controllers and power modules operating in elevated temperatures.
• Telecommunications and networking equipment — Decoupling and filtering on power rails where compact SMD packaging and predictable high‑frequency performance are required.

Unique Advantages

• Low ESR for efficient filtering: 50 mΩ at 100 kHz minimizes losses and heat rise in high‑frequency circuits.
• High ripple tolerance: 900 mA ripple current at 300 kHz supports demanding switching applications and reduces ripple‑related stress on downstream components.
• Extended high‑temperature life: 3000 hours at 125°C provides assurance for designs exposed to sustained elevated temperatures.
• Compact, assembly‑ready package: φ6.3 × 5.8 mm radial can in embossed carrier taping with moisture‑proof packing simplifies pick‑and‑place and reflow processes.
• Predictable electrical characteristics: Specified tanδ, leakage current and tolerance enable straightforward design margining and simulation.

Why Choose RKS1E180MCNAFEGS?

RKS1E180MCNAFEGS combines conductive polymer aluminum chemistry with a compact SMD can to deliver a balance of low ESR, high ripple capability and extended high‑temperature endurance. Its electrical specifications—18 µF at 25 V, 50 mΩ ESR at 100 kHz, and ripple ratings up to 900 mA at 300 kHz—make it suited for engineers optimizing power‑stage decoupling and noise suppression without sacrificing board area.

This part is ideal for designers of industrial, communications and computing equipment who need predictable performance under thermal stress and automated assembly compatibility. The combination of measured electrical parameters and long life at elevated temperature provides durable, verifiable performance for production applications.

If you would like pricing, availability or a formal quotation for RKS1E180MCNAFEGS, request a quote or submit your RFQ and our team will respond with current lead time and ordering information.