RR50J391MDN1

The RR50J391MDN1 is a conductive polymer aluminum solid electrolytic capacitor engineered for general-purpose electronic designs that require ultra-low ESR and high ripple-current capability. Its radial lead can package and lead-free flow soldering correspondence make it suitable for conventional through-hole assemblies where performance and reliability at elevated temperatures are required.

Key attributes include a 390 µF capacitance at 6.3 V, an operating temperature range of –55 °C to +105 °C, and a rated load life of 2000 hours at 105 °C, delivering stable performance in demanding thermal environments.

Key Features

• Capacitance & Voltage — 390 µF nominal capacitance with a 6.3 V rated voltage and ±20% tolerance, providing bulk energy storage for general-purpose circuits.
• Ultra-low ESR — 5 mΩ ESR specified at 100 kHz and 20 °C, reducing losses and improving efficiency in high-frequency applications.
• High Ripple Current — Supports 663 mA at 120 Hz and 6.63 A at 300 kHz, enabling robust performance under significant AC ripple loads.
• High-temperature Endurance — Rated for continuous operation from –55 °C to +105 °C with a load life of 2000 hours at 105 °C, maintaining capacitance and ESR within specified limits after endurance testing.
• Radial Lead Package — Radial, can-style case with 3.5 mm lead spacing and compact dimensions (L: 1.15 cm × D: 0.8 cm) for through-hole mounting and board-level assembly.
• Assembly and Compliance — Lead-free flow soldering condition correspondence and RoHS compliance (2011/65/EU, (EU)2015/863) for environmentally conscious manufacturing.

Typical Applications

• General-purpose electronics — Suited to circuits that require stable bulk capacitance with very low ESR for improved power integrity.
• High-ripple environments — Designed for applications where significant AC ripple is present, benefiting from the rated ripple-current capability at both low and high frequencies.
• Elevated-temperature assemblies — Appropriate for designs that must operate reliably up to 105 °C with a proven 2000-hour load life.
• Through-hole board assemblies — Radial lead can and 3.5 mm lead spacing simplify placement in conventional through-hole manufacturing processes.

Unique Advantages

• Lower power loss: 5 mΩ ESR at 100 kHz minimizes resistive heating and improves system efficiency under high-frequency operation.
• High ripple tolerance: Rated ripple currents of 663 mA (120 Hz) and 6.63 A (300 kHz) enable confident use in power rails with substantial AC content.
• Thermal robustness: –55 °C to +105 °C operating range and 2000-hour life at 105 °C provide long-term stability in hot environments.
• Through-hole compatibility: Radial lead, compact can package with 3.5 mm lead spacing for straightforward integration into existing through-hole layouts.
• Regulatory readiness: Lead-free flow soldering correspondence and RoHS compliance support modern manufacturing and environmental requirements.

Why Choose RR50J391MDN1?

The RR50J391MDN1 combines conductive polymer technology with a compact radial-can package to deliver ultra-low ESR, high ripple-current capacity, and proven high-temperature endurance. It is positioned for designers who need reliable bulk capacitance and efficient power handling in general-purpose electronic assemblies.

Its specification set — including 390 µF at 6.3 V, 5 mΩ ESR at 100 kHz, 6.63 A ripple capability at high frequency, and a 2000-hour life at 105 °C — makes it a practical choice for engineers aiming to improve power integrity and thermal reliability while maintaining compatibility with conventional through-hole manufacturing.

Request a quote or contact sales to discuss pricing, availability, and lead times for RR50J391MDN1. Our team can provide ordering information and support for your design needs.