RNU1E181MDN1

The RNU1E181MDN1 is a conductive polymer aluminum solid electrolytic capacitor in a radial-lead can, part of Nichicon’s RNU series. It delivers 180 µF capacitance at a 25 V rating with low ESR and high ripple-current capability for general-purpose electronic applications.

Designed for compact through-hole mounting, this component targets general-purpose designs that need a combination of high capacitance, low dissipation factor, and reliable performance across a broad temperature range.

Key Features

• Capacitance & Voltage — 180 µF nominal capacitance rated at 25 V with capacitance tolerance ±20% (measured at 120 Hz, 20°C).
• Conductive Polymer Construction — Solid conductive polymer aluminum electrolytic architecture from the RNU series for low ESR and stable performance.
• Low ESR — ESR of 16 mΩ measured at 20°C/100 kHz, supporting lower loss and improved high-frequency performance.
• High Ripple Current — Rated ripple current of 465 mA at 120 Hz and 4.65 A at 300 kHz, enabling effective handling of both low- and high-frequency ripple loads.
• Leakage and Dissipation — Leakage current specified at 900 µA and tanδ (DF) 0.12 (20°C, 120 Hz).
• Temperature & Endurance — Operating temperature range −55°C to +105°C with a rated life of 2000 hours at 105°C.
• Package & Mounting — Radial lead can, dimensions φ8 × 11.5 mm, lead spacing 3.5 mm (tolerance 0.5 mm); available in bulk (no terminal forming) or bag packing.
• Compliance & Production — RoHS compliant and in mass production under Nichicon’s RNU series.

Typical Applications

• General Purpose Electronics — Suitable for designs requiring a polarized 180 µF, 25 V capacitor with low ESR and high ripple-current capacity.
• Power Filtering — Handles significant ripple currents (465 mA at 120 Hz; 4.65 A at 300 kHz) for smoothing and filtering tasks in power circuits.
• Through-Hole PCB Designs — Radial-lead, φ8×11.5 mm package and 3.5 mm lead spacing simplify placement in compact through-hole assemblies.

Unique Advantages

• Low-loss performance: ESR of 16 mΩ at 100 kHz reduces heat and improves efficiency in high-frequency applications.
• High ripple capability: Rated ripple currents up to 4.65 A at 300 kHz support demanding AC ripple and switching environments.
• Wide temperature endurance: −55°C to +105°C operating range and 2000-hour life at 105°C provide reliable service under elevated temperatures.
• Compact radial can: φ8×11.5 mm size with standard 3.5 mm lead spacing offers a space-efficient through-hole solution.
• Predictable leakage and DF: Specified leakage current (900 µA) and tanδ (0.12 at 20°C/120 Hz) simplify design margining.
• RoHS compliant and production-ready: Meets RoHS requirements and is available in mass production quantities.

Why Choose RNU1E181MDN1?

The RNU1E181MDN1 from Nichicon’s RNU series is positioned for engineers and procurement teams seeking a compact, radial through-hole capacitor that balances high capacitance with low ESR and strong ripple-current capability. Its conductive polymer construction and measured electricals (16 mΩ ESR, 4.65 A ripple at 300 kHz) make it suitable for general-purpose designs that require dependable filtering and decoupling under temperature stress.

With RoHS compliance, standardized radial packaging, and mass-production availability, this part delivers a practical combination of performance and supply reliability for a wide range of electronic products and assemblies.

To request a quote or submit a procurement inquiry for RNU1E181MDN1, please reach out to sales with your quantity and lead-time requirements.