RNU1J390MDN1

The RNU1J390MDN1 is a conductive polymer aluminum solid electrolytic capacitor in a radial‑lead can (φ10×12.5 mm). It delivers 39 µF capacitance at a 63 V rating with low ESR and high ripple‑current capability, targeted for general‑purpose electronic applications.

Designed for applications that require compact electrolytic capacitance with robust ripple performance and wide operating temperature range, this part balances electrical performance, reliability, and simple through‑hole mounting.

Key Features

• Core Technology  Conductive polymer aluminum solid electrolytic dielectric for low ESR and stable performance.
• Electrical Ratings  39 µF nominal capacitance with ±20% tolerance and a 63 V rated voltage.
• Low ESR  25 mΩ ESR specified at 20°C/100 kHz, reducing AC loss and heat under high‑frequency stress.
• High Ripple Current  Rated ripple current 260 mA at 120 Hz and 2.6 A at 300 kHz (frequency coefficient data available), supporting both low‑ and high‑frequency ripple conditions.
• Leakage Current  Specified leakage current of 491 µA (measured condition per series specification applies).
• Reliability / Lifetime  Endurance rated at 2000 hours at 105°C under rated voltage.
• Mechanical & Mounting  Radial lead package (φ10×12.5 L), lead spacing 5 mm (±0.5 mm), supplied as bulk or bag packing for through‑hole assembly.
• Operating Environment  Wide operating temperature range from −55°C to +105°C and RoHS compliant.

Typical Applications

• General Power Filtering  Use in power modules and supply rails where compact capacitance with high ripple handling is required.
• DC–DC Conversion Support  Suitable for smoothing and decoupling in converter outputs that present both low‑ and high‑frequency ripple.
• Embedded and Industrial Electronics  Through‑hole mounting and wide temperature range make it applicable for general‑purpose electronic assemblies and modules.

Unique Advantages

• Low ESR for Reduced Losses: 25 mΩ ESR at 20°C/100 kHz lowers dissipation and improves efficiency in AC/RF ripple environments.
• High Ripple Capability: Rated ripple currents up to 2.6 A at 300 kHz support demanding high‑frequency applications.
• Compact Radial Can: φ10×12.5 mm package offers a small footprint for through‑hole layouts while providing substantial capacitance.
• Wide Temperature Range: −55°C to +105°C operation supports a broad set of environmental conditions.
• Engineered Reliability: 2000‑hour endurance at 105°C demonstrates defined lifetime performance under rated conditions.
• Regulatory Compliance: RoHS‑compliant construction for global assembly requirements.

Why Choose RNU1J390MDN1?

The RNU1J390MDN1 combines conductive‑polymer aluminum technology with a compact radial can to deliver low ESR, measurable high-frequency ripple handling, and defined endurance at elevated temperature. It is suited to designers seeking through‑hole capacitors that offer concrete electrical specifications—capacitance, ESR, ripple current, leakage, and lifetime—all documented for engineering evaluation.

This part is positioned for general‑purpose power and electronic modules where reliable ripple performance, wide temperature operation, and straightforward radial mounting are required. Its clear specification set supports predictable integration and lifecycle planning in production designs.

For pricing, availability, or to request a quote for RNU1J390MDN1, submit an inquiry or request a quote from our sales channel with your quantity and delivery requirements.