UCY2D181MHD

The UCY2D181MHD is a radial lead aluminum electrolytic capacitor from Nichicon's UCY series, offering 180 µF capacitance at a 200 V rated voltage in a compact φ12.5 × 40 mm can. It is designed for power applications that require high ripple handling and extended endurance at elevated temperatures.

Engineered for demanding environments, this polarized radial-lead capacitor provides AEC-Q200 qualification, a 12000-hour endurance at 105°C, and ripple current performance geared to both low- and high-frequency power systems.

Key Features

• Capacitance & Voltage — 180 µF nominal capacitance with a 200 V rated voltage and a capacitance tolerance of −20% to +20%.
• High ripple current capability — Supports 1.09 A at 120 Hz (low frequency) and 2.18 A at 100 kHz (high frequency), enabling effective smoothing in both mains-frequency and high-frequency power circuits.
• Long endurance at elevated temperature — Rated for 12000 hours at +105°C under DC bias plus rated ripple current (10000 hours for some smaller sizes), for stable long-term operation in hot environments.
• Broad operating temperature — Specified for −40°C to +105°C, suitable for a wide range of thermal conditions.
• Low-loss dielectric — Tangent of loss angle (tan δ) ≤ 0.20 at 20°C, 120 Hz, supporting efficient energy handling and reduced self-heating.
• Leakage current — Specified leakage current of 1540 µA, measurable after application of rated voltage per datasheet conditions.
• Robust radial package — φ12.5 × 40 mm aluminum can with 5.0 mm lead spacing (±0.5 mm) and radial lead mounting for through-hole assemblies; available in bulk or bag packing.
• Compliance & qualification — RoHS compliant and AEC-Q200 qualified as part of the UCY series.

Typical Applications

• Power supplies — Bulk and output smoothing in industrial and automotive power supply circuits where high ripple handling and extended life at 105°C are required.
• Ballast circuits — Filtering and energy buffering in ballast and lamp-drive applications that demand reliable operation under continuous ripple stress.
• Automotive power systems — Use in vehicle electrical systems benefitting from AEC-Q200 qualification, wide temperature range, and long endurance.

Unique Advantages

• Designed for continuous ripple loading — Rated ripple currents at both low and high frequencies reduce ripple-induced heating and help maintain capacitance over life.
• Extended high-temperature life — 12000-hour endurance at 105°C supports longer service intervals and lower replacement frequency in hot installations.
• AEC-Q200 qualification — Provides a documented quality baseline for designs targeting automotive and other demanding sectors.
• Compact radial can — φ12.5 × 40 mm footprint with standard 5 mm lead spacing simplifies board layout for through-hole power designs.
• RoHS compliant — Meets environmental compliance requirements for lead-free assemblies.

Why Choose UCY2D181MHD?

UCY2D181MHD combines high ripple-current capability, a 200 V rating, and extended endurance at +105°C in a compact radial-lead aluminum can, making it suitable for designers who need reliable bulk and smoothing capacitance in harsh or thermally challenging environments. Its AEC-Q200 qualification and specified operating range from −40°C to +105°C align it with automotive and other high-reliability power applications.

Manufactured by Nichicon as part of the UCY series, this capacitor is aimed at engineers specifying components for long-life power supplies and ballast circuits where verified ripple performance and endurance are required.

Request a quote or contact our sales team to discuss availability, packaging options (bulk or bag packing), and lead times for UCY2D181MHD.