RKS1H390MCNAHHGS

The RKS1H390MCNAHHGS is a surface-mount conductive polymer aluminum solid electrolytic capacitor in Nichicon's RKS series, offering 39 µF capacitance at a 50 V rating. Engineered for demanding thermal and high-frequency environments, it combines low ESR and substantial ripple-current capability with extended high-temperature endurance.

Typical use cases include power-filtering and decoupling roles in industrial and communications equipment where high ripple handling, low loss, and longevity at elevated temperatures are required. The part is RoHS compliant and supplied in embossed carrier taping with moisture-proof packing for automated SMT assembly.

Key Features

• Capacitance & Voltage — 39 µF nominal capacitance with a 50 V rated voltage and ±20% tolerance for reliable energy storage and decoupling.
• Conductive Polymer Electrolyte — Solid polymer construction provides low tangent of loss (tanδ = 0.12 at 20°C, 120 Hz) for reduced dielectric loss in AC conditions.
• Low ESR & High-Frequency Performance — ESR of 30 mΩ measured at 100 kHz (20°C) and high-frequency ripple current capability of 1.6 A (at 300 kHz) support efficient power-stage operation.
• Low-Frequency Ripple Handling — Rated low-frequency ripple current of 160 mA at 120 Hz for bulk and smoothing applications.
• High-Temperature Endurance — Rated for operation from −55°C to +125°C with a load life of 3000 hours at 125°C, enabling extended service in thermally-stressed systems.
• Leakage Current & Reliability — Leakage current specified at 100 µA and endurance/shelf-life characteristics defined by standardized conditioning and testing in the datasheet.
• SMT Packaging & Reflow Compatibility — Surface-mount radial can (φ8 × 8.7 mm length) supplied in embossed carrier taping, designed for lead-free reflow profiles and moisture-proof handling for automated assembly.

Typical Applications

• Power supply filtering — Bulk smoothing and output filtering in DC–DC converters where low ESR and high ripple capability reduce voltage ripple and improve regulator stability.
• Point-of-load decoupling — Local energy storage at converters and power stages that require high-frequency decoupling and low loss at elevated temperatures.
• Industrial control systems — Power conditioning in industrial electronics exposed to wide temperature ranges and continuous operation at elevated ambient temperatures.
• Telecommunications equipment — Filtering and decoupling in power distribution networks where high-frequency performance and long life at 125°C are required.

Unique Advantages

• High ripple-current capability: 1.6 A at 300 kHz and 160 mA at 120 Hz provide flexibility across low- and high-frequency power paths.
• Low loss under AC stress: tanδ of 0.12 (20°C, 120 Hz) helps minimize dissipation in cyclic and switching environments.
• Low ESR for improved efficiency: 30 mΩ at 100 kHz supports lower conduction losses and improved thermal performance in power circuits.
• Extended high-temperature life: 3000 hours at 125°C gives predictable long-term performance in hot operating conditions.
• SMT-ready packaging: Embossed carrier taping and moisture-proof packing streamline automated assembly and storage handling.
• RoHS compliant: Meets applicable RoHS requirements for environmental and regulatory compliance.

Why Choose RKS1H390MCNAHHGS?

RKS1H390MCNAHHGS is positioned for designs that require a compact surface-mount polymer aluminum capacitor with strong high-frequency performance, low ESR, and demonstrated endurance at elevated temperatures. Its combination of 39 µF/50 V ratings, 1.6 A high-frequency ripple capability, and 3000‑hour life at 125°C make it suitable for power conversion, regulation, and filtering subsystems in industrial and communications hardware.

Engineers specifying this part benefit from verifiable electrical characteristics—low loss (tanδ), tight ESR measurement at 100 kHz, controlled leakage, and SMT-friendly packaging—reducing integration risk and supporting reliable long-term operation in thermally demanding applications.

Request a quote or submit an inquiry to receive pricing and availability information for RKS1H390MCNAHHGS and to discuss suitability for your design requirements.