RNU1C181MCN1

The RNU1C181MCN1 is a conductive polymer aluminum solid electrolytic capacitor in a radial lead can, designed for general-purpose electronic circuits. It delivers low ESR and high ripple-current capability in a compact φ8×11.5 mm package for applications that require robust power filtering and decoupling at both low and high frequencies.

Engineered for reliable operation from −55°C to 105°C with a rated voltage of 16 V and a rated capacitance of 180 µF (±20%), this part balances high-frequency performance and board-level convenience with radial leads and standard lead spacing.

Key Features

• Capacitance & Voltage — 180 µF rated capacitance at 16 V with ±20% tolerance (120 Hz, 20°C).
• Low ESR — 8 mΩ ESR measured at 20°C/100 kHz, reducing voltage drop and improving high-frequency performance.
• High Ripple Current — Rated ripple: 570 mA at 120 Hz and 5.7 A at 300 kHz, supporting both low- and high-frequency smoothing needs.
• Loss Tangent (tan δ) — tanδ = 0.08 measured at 20°C/120 Hz for predictable dissipation characteristics.
• Leakage Current — 576 µA (measured after 2 minutes at 20°C), suitable for a wide range of general-purpose circuits.
• Thermal Endurance — Load life: 2000 hours at 105°C, enabling sustained operation in elevated-temperature environments.
• Package & Mounting — Radial lead can, size φ8×11.5 mm, lead spacing 3.5 mm (±0.5 mm); available in bulk or bag packing (no terminal forming).
• Compliance & Availability — RoHS compliant and in mass production.

Typical Applications

• General-purpose power filtering — Smoothing and decoupling in board-level power supplies and regulator output stages where low ESR and ripple capability are required.
• High-frequency ripple suppression — Useful in circuits operating with high-frequency switching due to 8 mΩ ESR at 100 kHz and 5.7 A ripple rating at 300 kHz.
• Compact PCB designs — Small φ8×11.5 mm can and radial lead format simplify placement in space-constrained assemblies.

Unique Advantages

• High ripple-handling capability: 5.7 A at 300 kHz and 570 mA at 120 Hz allow the capacitor to handle both switching and line-frequency ripple without excessive heating.
• Low dissipation losses: 8 mΩ ESR at 100 kHz and tanδ of 0.08 support efficient power conversion and reduced thermal stress on surrounding components.
• Wide operating temperature range: Rated from −55°C to 105°C for use across a broad set of environmental conditions.
• Durability at elevated temperature: 2000 hours rated life at 105°C provides predictable long-term behavior in hot operating environments.
• Board-level convenience: Radial lead package with 3.5 mm lead spacing and standard lead tolerances simplifies through-hole assembly and prototyping.
• Regulatory compliance: RoHS conformity supports use in designs targeting restricted-substance requirements.

Why Choose RNU1C181MCN1?

The RNU1C181MCN1 combines conductive polymer aluminum technology with low ESR and high ripple-current capability in a compact radial-lead package. Its 16 V rating, 180 µF capacitance, and verified performance at both low and high frequencies make it a practical choice for designers seeking reliable decoupling and smoothing in general-purpose electronic systems.

This part is well suited to engineers and procurement teams needing a mass-production-ready capacitor that balances size, electrical performance, and thermal endurance while meeting RoHS requirements.

If you would like pricing, lead-time, or a formal quote for RNU1C181MCN1, please request a quote or contact sales for further assistance.