RKS1E390MCNAFGGS

The RKS1E390MCNAFGGS is a surface‑mount conductive polymer aluminum solid electrolytic capacitor with a nominal capacitance of 39 µF and a rated voltage of 25 V. It combines low ESR and high allowable ripple current with a compact SMD can package (φ6.3 × 7.7 mm) for space‑constrained power electronics.

Designed for demanding thermal and ripple conditions, this RoHS‑compliant part delivers a rated life of 3000 hours at 125°C, low tanδ (0.12 at 20°C, 120 Hz), and packaging optimized for automated SMT assembly (embossed carrier taping / moisture proof packing).

Key Features

• Capacitance & Voltage — 39 µF nominal capacitance with a rated voltage of 25 V and tolerance of −20% to +20% for design predictability.
• Low Loss / Low ESR — Tanδ of 0.12 (20°C, 120 Hz) and ESR specified at 30 mΩ (20°C, 100 kHz), supporting efficient high‑frequency operation.
• High Ripple Current Capability — Low‑frequency ripple current of 140 mA (120 Hz) and high‑frequency ripple current of 1.4 A (300 kHz) for handling dynamic loads.
• Endurance at Elevated Temperature — Rated for 3000 hours at 125°C, meeting long‑life requirements in high‑temperature environments.
• Leakage and Reliability — Leakage current specified at 100 µA and designed to meet endurance and shelf‑life characteristics defined in the series datasheet.
• SMT Compatibility & Packaging — Radial can SMD package (φ6.3 × 7.7 mm), surface mount land size 6.6 × 6.6 mm, and supplied in embossed carrier taping with moisture proof packing for automated assembly and storage.
• Reflow Solder Compatible — Manufactured to accommodate lead‑free reflow soldering profiles up to peak temperatures noted in the product series documentation.
• Environmental Compliance — RoHS compliant.

Typical Applications

• High‑ripple SMD power supplies — Suited to circuits that require high allowable ripple current and low ESR in a compact surface‑mount form.
• High‑temperature industrial electronics — Components and modules operating in environments up to 125°C benefit from the 3000‑hour endurance rating.
• Compact power modules and DC‑DC converters — Small footprint (φ6.3 × 7.7 mm) enables dense board layouts where stable capacitance and low ESR are needed.
• Automated SMT production — Embossed carrier taping and moisture‑proof packing streamline pick‑and‑place and reflow assembly workflows.

Unique Advantages

• High ripple tolerance: 1.4 A at 300 kHz enables reliable handling of high AC content in power rails and switching applications.
• Low equivalent series resistance: 30 mΩ (100 kHz, 20°C) reduces power loss and improves thermal performance under load.
• Robust high‑temperature life: 3000 hours at 125°C provides measurable reliability for elevated‑temperature designs.
• Compact SMD can package: φ6.3 × 7.7 mm size and defined land pattern (6.6 × 6.6 mm) support compact PCB layouts and predictable mounting.
• Manufacturing ready: Supplied in embossed carrier taping with moisture‑proof packing to support automated assembly and inventory handling.
• Measurable electrical characteristics: Specified tanδ, leakage current, and ESR values enable straightforward validation within system designs.

Why Choose RKS1E390MCNAFGGS?

RKS1E390MCNAFGGS positions itself as a reliable SMD conductive‑polymer aluminum capacitor for designers who need low ESR, high ripple capability, and proven endurance at elevated temperatures. Its electrical specifications—39 µF at 25 V, 30 mΩ ESR (100 kHz), and a 3000‑hour rating at 125°C—make it suitable for compact power delivery and high‑temperature applications where long life and predictable performance matter.

This part suits design teams and procurement seeking a mass‑production, RoHS‑compliant SMD capacitor with defined assembly packaging and measurable electrical performance. The combination of compact size, reflow compatibility, and documented endurance simplifies integration into high‑density power and industrial electronics designs.

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