RKS1V390MCNAFGGS

The RKS1V390MCNAFGGS is a surface-mount conductive polymer aluminum solid electrolytic capacitor with 39 µF capacitance at a 35 V rating. It delivers low ESR and high allowable ripple current in a compact φ6.3 × 7.7 mm SMD can, engineered for board-level power filtering and decoupling where extended high-temperature life and reliable performance are required.

Designed for applications that demand stable electrical characteristics across a wide temperature range, this part combines a 3000-hour endurance at 125°C with RoHS compliance and tape-and-reel packaging for automated assembly.

Key Features

• Capacitance & Voltage — 39 µF nominal capacitance with tolerance −20% to +20% at a rated voltage of 35 V.
• Low Loss / Low ESR — tanδ 0.12 (measured at 20°C, 120 Hz) and ESR of 35 mΩ measured at 20°C / 100 kHz, enabling efficient high-frequency performance.
• 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 effective smoothing in switching power supplies.
• Leakage Current — Specified leakage current of 100 µA to support low-standby and predictable bias behavior.
• Extended High-Temperature Endurance — Rated life of 3000 hours at 125°C, providing long-term stability in elevated-temperature environments.
• Wide Operating Temperature — −55°C to +125°C operating range for compatibility with demanding thermal environments.
• Surface-Mount Can Package — Compact φ6.3 × 7.7 mm radial can (SMD) suitable for automated assembly; packaged in embossed carrier taping with moisture-proof packing.
• Assembly Compatibility — Reflow-capable construction (soldering profile up to 260°C peak per series specification) for lead-free reflow processes.
• Regulatory — RoHS compliant.

Typical Applications

• Power supply decoupling — Low ESR and 1.4 A high-frequency ripple rating make this capacitor well-suited for decoupling and smoothing on DC rails in switching regulators.
• DC‑DC converters — Compact SMD can and strong ripple handling support output filtering in point-of-load converters and power modules.
• Industrial electronics — Extended 3000-hour life at 125°C and −55°C to +125°C operating range suit high-temperature, high-reliability industrial applications.
• Communications and networking — Stable high-frequency performance and low loss angle help maintain signal integrity and power stability in telecom and network equipment.

Unique Advantages

• High-temperature durability: 3000 hours rated life at 125°C delivers predictable long-term performance in elevated-temperature assemblies.
• Low ESR for efficient filtering: 35 mΩ ESR at 100 kHz reduces heat generation and improves smoothing performance in high-frequency power stages.
• High ripple capability: Combined low- and high-frequency ripple ratings (140 mA @120 Hz, 1.4 A @300 kHz) address both bulk and switching noise suppression needs.
• Compact SMD can: φ6.3 × 7.7 mm package provides a small board footprint while remaining compatible with automated pick-and-place and reflow processes.
• Predictable leakage behavior: 100 µA leakage current specification supports designs that require stable bias currents and low standby loss.
• Manufacturing ready: Embossed carrier taping and moisture-proof packing simplify handling and support high-volume assembly flows.

Why Choose RKS1V390MCNAFGGS?

The RKS1V390MCNAFGGS balances low ESR, significant ripple handling, and extended high-temperature life in a compact surface-mount can, making it a strong choice for power filtering and decoupling in industrial, communications, and power-conversion designs. Its conductive polymer construction and reflow-compatible package provide reliable electrical performance and straightforward integration into automated assembly processes.

This part is suited for designers and procurement teams seeking a proven SMD electrolytic capacitor with verifiable specifications for temperature endurance, ripple capability, and leakage — offering long-term stability and consistent behavior in thermally demanding systems.

If you need pricing, availability, or a formal quote for RKS1V390MCNAFGGS, request a quote or submit a parts inquiry to receive detailed commercial and lead-time information.