UCY2W390MHD

The UCY2W390MHD is a miniature, radial‑lead aluminum electrolytic capacitor from Nichicon’s UCY series engineered for high ripple current handling and extended endurance. It delivers 39 µF at a 450 V rating in a compact φ12.5 × 35.5 mm can with 5 mm lead spacing.

Designed for demanding power applications, the part offers long life at elevated temperature (12,000 hours at 105°C), AEC‑Q200 qualification, and RoHS compliance—making it suitable for automotive and power‑supply/ballast use cases where durability and ripple performance matter.

Key Features

• Electrical rating: 39 µF nominal capacitance with a rated voltage of 450 V and capacitance tolerance of −20% to +20%.
• High ripple current: Low‑frequency ripple current 460 mA (120 Hz) and high‑frequency ripple current 920 mA (100 kHz) to support switching and line‑filtering applications.
• Long endurance: Rated life of 12,000 hours at 105°C under rated bias and ripple conditions for extended reliability in sustained high‑temperature environments.
• Low loss factor: tanδ (DF) of 0.24 measured at 20°C, 120 Hz (at 450 V rating), supporting stable AC performance.
• Leakage current: Specified leakage current of 802 µA (measured condition per product data).
• Robust temperature range: Operates from −40°C to +105°C to accommodate a wide span of operating environments.
• Radial can package: φ12.5 × 35.5 mm (L) can with 5 mm lead spacing and radial lead mounting for through‑hole assemblies; available in bulk (no terminal forming) or bag packing.
• Industry qualification and compliance: AEC‑Q200 rating and RoHS compliance for regulated production environments and automotive applications.

Typical Applications

• Automotive power electronics: Bulk and smoothing capacitance in automotive power rails and control modules where AEC‑Q200 qualification and long life at elevated temperature are required.
• Power supplies and DC‑DC converters: Input/output filtering and ripple absorption in industrial and vehicle power supplies, leveraging high ripple current capability and 450 V rating.
• Lighting ballasts: AC/DC ballast filtering and smoothing where miniature size and sustained ripple performance are needed.

Unique Advantages

• High ripple tolerance: Dual ripple current specs (120 Hz and 100 kHz) allow designers to quantify performance across line and switching frequencies.
• Extended high‑temperature life: 12,000 hours at 105°C provides predictable long‑term behavior for continuous high‑load applications.
• Compact radial form factor: φ12.5 × 35.5 mm can and 5 mm lead spacing deliver high energy density for space‑constrained through‑hole designs.
• Qualifiable for automotive use: AEC‑Q200 rating supports inclusion in automotive electronics and other regulated markets requiring component qualification.
• Regulatory compliance: RoHS‑compliant materials simplify integration into products sold in regulated regions.

Why Choose UCY2W390MHD?

UCY2W390MHD is positioned for engineers who need a compact, high‑voltage electrolytic capacitor with proven endurance and measurable ripple performance. Its combination of 39 µF at 450 V, high ripple current capability, and 12,000‑hour life at 105°C provides a reliable smoothing and filtering solution for automotive and power‑supply designs.

Choose UCY2W390MHD when your design requires a robust, AEC‑Q200‑rated radial electrolytic that balances compact packaging with long‑term stability and compliance for regulated markets.

Request a quote or contact sales to discuss availability, lead times, and pricing for UCY2W390MHD.