RKS1C391MCNAHFGS

The RKS1C391MCNAHFGS is a surface‑mount conductive polymer aluminum electrolytic capacitor offering 390 µF capacitance at a 16 V rating. Built for general‑purpose power‑conditioning and decoupling in compact assemblies, it pairs high capacitance density with low ESR and high ripple capability.

Key value propositions include a wide operating temperature range (‑55°C to 125°C), a 3000‑hour load life at 125°C, and surface‑mount packaging with embossed carrier taping for automated assembly.

Key Features

• Capacitance & Tolerance: 390 µF nominal with ±20% tolerance (measured at 120 Hz, 20°C), suitable for bulk decoupling and energy storage in DC power rails.
• Voltage Rating: Rated for 16 V operation, matching common low‑voltage power rails and converters.
• Low ESR / High Ripple Capability: ESR of 30 mΩ (measured at 20°C, 100 kHz) and high‑frequency ripple current of 1.6 A (300 kHz), enabling efficient filtering in switched‑mode power supplies; low‑frequency ripple current is 160 mA at 120 Hz.
• Loss Angle (tan δ): tanδ = 0.12 at 20°C, 120 Hz, providing predictable AC loss characteristics for stability in filter networks.
• Lifetime & Reliability: Load life of 3000 hours at 125°C under rated voltage as specified in the series datasheet, supporting long‑term operation in high‑temperature environments.
• Wide Temperature Range: Operates from ‑55°C to 125°C for use across a broad set of thermal environments.
• SMD Radial Can Package: Compact φ8 × 6.7 mm package (φ8 × 6.7L) in a radial, can‑style SMD case; supplied in embossed carrier taping with moisture‑proof packing for automated placement.
• Leakage Current: Specified leakage current of 312 µA, enabling predictable standby losses in power system budgets.
• RoHS Compliance & Reflow Capability: RoHS‑compliant; series documentation indicates lead‑free reflow soldering correspondence to a 260°C peak for standard SMD assembly processes.

Typical Applications

• DC‑DC Converter Output Filtering: Smooths output ripple and provides bulk storage for low‑voltage converters where high ripple current and low ESR reduce voltage excursion.
• Power Supply Decoupling: Local bulk decoupling for microcontrollers, FPGAs, and power management ICs requiring stable low‑voltage rails across temperature extremes.
• Embedded Power Modules: Integration into compact power modules and point‑of‑load circuits where high capacitance in a small SMD can saves board area.

Unique Advantages

• High Capacitance in Compact SMD Form: 390 µF in a φ8 × 6.7 mm package allows large bulk capacitance without large through‑hole parts, reducing board footprint.
• High Ripple Handling with Low ESR: 30 mΩ ESR and 1.6 A high‑frequency ripple current support efficient filtering in switching power topologies, improving voltage stability.
• Extended High‑Temperature Life: 3000 hours at 125°C provides long‑term reliability for applications exposed to elevated operating temperatures.
• Predictable Loss Characteristics: Specified tanδ and leakage current numbers allow accurate thermal and power‑loss budgeting in design validation.
• Assembly‑Ready Packaging: Embossed carrier taping and moisture‑proof packing simplify surface‑mount production flow and storage handling.
• Regulatory Compliance: RoHS‑compliant construction supports deployments requiring restricted‑substance adherence.

Why Choose RKS1C391MCNAHFGS?

RKS1C391MCNAHFGS positions itself as a compact, high‑capacitance SMD solution for engineers designing low‑voltage power systems that require low ESR, strong ripple performance, and robust high‑temperature endurance. Its combination of 390 µF capacitance, 16 V rating, and a 3000‑hour life at 125°C make it well suited for demanding embedded power and power‑conversion applications.

This part is aimed at designers seeking predictable electrical behavior (specified tanδ, ESR, and leakage) and assembly‑friendly packaging for automated production. The RoHS compliance and documented reflow correspondence support modern manufacturing and environmental requirements.

Request a quote or submit an inquiry to sales to discuss pricing, lead times, and volume availability for RKS1C391MCNAHFGS.