RNU1H390MCN1

The RNU1H390MCN1 is a Nichicon RNU series conductive polymer aluminum solid electrolytic capacitor in a radial lead can. It provides 39 µF capacitance at a 50 V rating with a radial lead package sized φ8×11.5 mm and 3.5 mm lead spacing.

Designed for general-purpose electronic applications, this part delivers low ESR and high ripple-current capability with a 2000-hour rated life at 105°C, making it suitable for demanding thermal and power-management environments that require RoHS-compliant components.

Key Features

• Electrical Performance 39 µF nominal capacitance with a tolerance of -20% to +20% and tanδ of 0.12 (measured at 20°C, 120 Hz).
• Low ESR & High Ripple Handling ESR of 25 mΩ measured at 20°C/100 kHz, with rated ripple current of 240 mA at 120 Hz and 2.4 A at 300 kHz (high-frequency value), supporting higher-frequency power applications.
• Voltage & Leakage 50 V rated voltage with leakage current specified at 390 µA (measured at 20°C after 2 minutes).
• Reliability & Endurance Load life specified as 2000 hours at 105°C under rated voltage conditions, with endurance limits defined for capacitance, tanδ and ESR.
• Mechanical & Package Radial lead can: φ8×11.5 mm case size, lead spacing 3.5 mm (±0.5 mm), available in bulk (no terminal forming) and bag packing; sold as a mass-production product.
• Temperature Range & Compliance Operating temperature range of -55°C to +105°C and RoHS-compliant construction.

Typical Applications

• General-purpose electronic circuits — Suited for assemblies that require a 39 µF, 50 V radial lead conductive polymer capacitor with low ESR and defined ripple-current capability.
• Power management and filtering — Appropriate where defined ripple current performance (240 mA at 120 Hz; 2.4 A at 300 kHz) and low ESR (25 mΩ @100 kHz) are required to meet design targets.
• Thermally demanding environments — Intended for use in designs operating across -55°C to +105°C with a specified 2000-hour life at 105°C under rated voltage.

Unique Advantages

• Low ESR for improved efficiency: 25 mΩ ESR at 20°C/100 kHz reduces series losses and supports higher-frequency ripple currents.
• High-frequency ripple capability: Rated ripple current up to 2.4 A at 300 kHz enables use in high-frequency power stages and decoupling roles.
• Robust thermal endurance: 2000-hour life rating at 105°C provides predictable performance in elevated-temperature applications.
• Radial lead form factor: φ8×11.5 mm can with 3.5 mm lead spacing simplifies through-hole integration and mechanical mounting in assemblies.
• RoHS compliant & production ready: Conforms to RoHS requirements and is available in mass-production quantities with bulk and bag packaging options.

Why Choose RNU1H390MCN1?

RNU1H390MCN1 combines conductive polymer aluminum chemistry with a compact radial-can package to deliver a balance of capacitance, low ESR, and high ripple-current capability. Its 50 V rating, defined leakage and tanδ, and 2000-hour endurance at 105°C position it for reliable use in designs that demand stable power-filtering performance across a wide temperature range.

This capacitor is well suited to engineers and procurement teams specifying RoHS-compliant, mass-production components for general-purpose electronic assemblies where verified electrical characteristics and thermal endurance are required.

If you would like pricing, availability, or volume quote information for RNU1H390MCN1, request a quote or contact sales to discuss your requirements and lead times.