RNU1C181MDN1

The RNU1C181MDN1 from Nichicon is a conductive polymer aluminum solid electrolytic capacitor in a radial-lead can. It delivers 180 µF capacitance at a 16 V rating with a polarized radial-lead form factor for through-hole assemblies.

Designed for general-purpose electronic use, the device combines low ESR (8 mΩ at 20°C/100 kHz) and high ripple capability (570 mA at 120 Hz; 5.7 A at 300 kHz) with an operating range of −55°C to 105°C and a rated life of 2000 hours at 105°C.

Key Features

• Dielectric and Construction Conductive polymer aluminum solid electrolytic construction for stable electrical characteristics in a polarized radial-lead package.
• Capacitance and Tolerance 180 µF nominal capacitance with ±20% tolerance (measured at 120 Hz, 20°C).
• Rated Voltage 16 V rated voltage, polarized.
• Low ESR Equivalent series resistance of 8 mΩ measured at 20°C/100 kHz, supporting low-loss operation at high frequency.
• High Ripple Current Rated ripple current of 570 mA at 120 Hz and 5.7 A at 300 kHz, enabling high-frequency and higher-load ripple handling.
• Leakage Current Leakage current specified at 576 µA (measured after standard conditioning at 20°C).
• Endurance and Temperature Range Load life rated at 2000 hours when operated at 105°C; operating temperature range from −55°C to 105°C.
• Package and Mounting Radial lead can, size φ8 × 11.5 mm, lead spacing 3.5 mm (±0.5 mm); available in bulk or bag packing and listed as mass production.
• Environmental Compliance RoHS compliant.

Typical Applications

• General-purpose electronic circuits — For designs requiring a 180 µF, 16 V polarized radial-lead capacitor with controlled tolerance and solid polymer construction.
• Power filtering and decoupling — Low ESR and rated ripple current support handling of high-frequency ripple in power subsystem designs.
• Equipment operating across wide temperatures — −55°C to 105°C operating range and 2000-hour life at 105°C suit robust general-purpose applications.

Unique Advantages

• High capacitance in a compact can — 180 µF in a φ8 × 11.5 mm package provides substantial bulk capacitance where board space is limited.
• Low-loss high-frequency performance — 8 mΩ ESR at 100 kHz minimizes dissipation at switching frequencies.
• Strong ripple-handling capability — Rated ripple currents of 570 mA (120 Hz) and 5.7 A (300 kHz) enable reliable operation under AC stress.
• Robust thermal endurance — 2000 hours at 105°C and a −55°C to 105°C range support demanding thermal environments.
• Through-hole, assembly-friendly form — Radial leads with 3.5 mm spacing simplify insertion and soldering for through-hole assemblies.
• Production-ready and compliant — Mass production status and RoHS compliance support procurement and regulatory needs.

Why Choose RNU1C181MDN1?

The RNU1C181MDN1 is positioned for designers who need a compact, high-capacitance polarized capacitor with measured low ESR and substantial ripple-handling capability. Its conductive polymer construction and radial-lead package make it suitable for general-purpose power applications where thermal endurance and reliable high-frequency behavior matter.

Manufactured by Nichicon and offered in bulk or bag packing, this part provides a predictable, production-ready option for teams specifying components with defined electrical performance, environmental compliance, and industrial temperature endurance.

Request a quote or contact sales to discuss pricing, availability, and sample requests for the RNU1C181MDN1.