RNU0J681MDN1

The RNU0J681MDN1 is a radial lead conductive polymer aluminum solid electrolytic capacitor providing 680 µF capacitance at 6.3 V. It is designed for general-purpose electronic applications that require high capacitance, low equivalent series resistance (ESR), and elevated ripple-current capability in a compact radial can package.

Key attributes include a low ESR of 7 mΩ (measured at 20°C/100 kHz), high-frequency ripple handling up to 5.7 A (at 300 kHz), and rated endurance of 2000 hours at 105°C, making it suitable where reliable, compact energy storage and ripple suppression are required.

Key Features

• Conductive Polymer Aluminum Solid Electrolyte  Uses a conductive polymer electrolyte for reduced ESR and improved ripple handling compared with traditional electrolytes.
• High Capacitance  680 µF nominal capacitance with tolerance −20% to 20% for bulk energy storage in compact designs.
• Low ESR  7 mΩ ESR specified at 20°C/100 kHz to minimize voltage drop and heat under high-frequency load.
• High Ripple Current Capability  Rated ripple current of 570 mA at 120 Hz and 5.7 A at higher frequencies (300 kHz), enabling effective noise suppression across a range of frequencies.
• Thermal and Endurance Ratings  Rated for operation from −55°C to +105°C with an endurance (load life) of 2000 hours at 105°C and rated voltage.
• Compact Radial Package  φ8 × 11.5 mm can with 3.5 mm lead spacing and radial lead mounting for through-hole assemblies and hand or wave soldering processes.
• Leakage and Dissipation  Specified leakage current of 856 µA (after 2 minutes at 20°C) and dielectric loss tangent (tan δ) of 0.08 measured at 20°C/120 Hz.
• Regulatory  Compliant with RoHS requirements for restricted substances.
• Packaging and Availability  Available in bulk (no terminal forming) or bag packing and in mass production status for volume procurement.

Typical Applications

• General-purpose power circuits  Provides bulk capacitance and low-ESR performance for power-supply filtering in space-constrained through-hole designs.
• High-frequency ripple suppression  Supports high-frequency ripple currents up to 5.7 A, useful where switching noise attenuation is required.
• Compact energy storage  Delivers 680 µF in a small φ8×11.5 mm can for designers needing concentrated capacitance in compact assemblies.

Unique Advantages

• Low ESR enables efficient power delivery  7 mΩ ESR at 100 kHz reduces losses and thermal rise under AC stress, improving regulator and converter stability.
• Strong ripple-handling across frequencies  Rated ripple current values at both low and high frequencies (570 mA at 120 Hz, 5.7 A at 300 kHz) accommodate a wide range of switching and AC conditions.
• Wide operating temperature range  −55°C to +105°C supports use in designs with broad ambient temperature requirements.
• Proven endurance  2000 hours at 105°C provides a defined reliability window for thermal-stressed applications.
• Compact through-hole form factor  φ8×11.5 mm radial can with 3.5 mm lead spacing simplifies replacement of legacy through-hole capacitors while delivering modern polymer performance.
• RoHS compliant and production-ready  Meets RoHS directives and is available in mass production with practical packaging options for assembly.

Why Choose RNU0J681MDN1?

The RNU0J681MDN1 combines conductive-polymer aluminum chemistry, low ESR (7 mΩ at 100 kHz), and high ripple-current capability to deliver reliable bulk capacitance and ripple suppression in a compact radial package. Its −55°C to +105°C operating range and 2000-hour endurance at 105°C make it well suited for general-purpose electronic designs that demand consistent performance over temperature and time.

This part is targeted at engineers and procurement teams seeking a mass-production-ready, through-hole capacitor that balances high capacitance and low impedance for power management and filtering tasks while maintaining RoHS compliance and practical packaging options.

If you would like pricing, availability, or a formal quotation for RNU0J681MDN1, please submit a request or contact our sales team to receive a quote and technical support.