UCY2V390MHD

The UCY2V390MHD is a miniature, high-reliability aluminum electrolytic capacitor from Nichicon's UCY series. It is a radial-lead, polarized component designed for high-voltage, high-ripple applications where long life and stable performance are required.

Designed for power-supply and ballast use and specified for automotive electronics, the UCY2V390MHD delivers a combination of 350 V rating, elevated ripple-current capability, and a 12000-hour endurance at 105°C to support demanding industrial and automotive designs.

Key Features

• Electrical Performance — 39 µF capacitance with tolerance of −20% to +20% and a rated voltage of 350 V; tangent of loss angle (tanδ) 0.24 measured at 20°C, 120 Hz.
• High Ripple Current — Low-frequency ripple current 455 mA at 120 Hz and high-frequency ripple current 910 mA at 100 kHz, supporting demanding ripple-handling requirements.
• Leakage Current — Specified leakage current 646 µA under rated conditions.
• Long Life / Endurance — Rated for 12000 hours at 105°C under DC bias plus rated ripple current (endurance conditions as specified for the UCY series).
• Temperature Range — Operating temperature −40°C to 105°C for stable operation across a wide thermal range.
• Package and Mounting — Radial lead, can-style package; physical size φ12.5 × 25L mm, lead spacing 5.0 mm with 0.5 mm tolerance; offered in bulk (no terminal forming) or bag packing.
• Qualification & Compliance — AEC-Q200 qualified and RoHS compliant; series-level guidance lists suitability for automotive applications.
• Production Status — Mass production availability from Nichicon.

Typical Applications

• Automotive electronic modules — Bulk filtering and energy buffering in automotive power electronics where AEC-Q200 qualification and elevated temperature endurance are required.
• Power supplies — Smoothing and hold-up capacitance on mid-voltage DC rails up to 350 V, leveraging high ripple-current capability.
• Ballasts and lighting power circuits — Designed for ballast-type applications that require long life at elevated temperatures and significant ripple handling.

Unique Advantages

• High ripple-handling capability: Specified LF and HF ripple currents (455 mA at 120 Hz; 910 mA at 100 kHz) help reduce thermal stress and extend service life in high-ripple environments.
• Extended high-temperature life: Rated endurance of 12000 hours at 105°C supports long-term reliability in elevated-temperature systems.
• 350 V rating for mid-voltage applications: Enables use in a range of power-supply and ballast designs requiring higher working voltages.
• Compact radial-can form factor: φ12.5 × 25L mm size and 5 mm lead spacing provide a small footprint for space-constrained layouts while maintaining a robust can package.
• AEC-Q200 qualification and RoHS compliance: Provides documented qualification and environmental compliance for automotive and regulated applications.
• Manufacturer-backed production: Mass production status from Nichicon ensures consistent supply and traceability for production designs.

Why Choose UCY2V390MHD?

The UCY2V390MHD combines a high 350 V rating, strong ripple-current capability at both low and high frequencies, and long endurance at 105°C in a compact radial-can package. These attributes make it well suited for designers building power supplies, ballast circuits, and automotive electronic modules that demand stable capacitance, controlled losses (tanδ), and proven thermal robustness.

For engineers and procurement teams seeking a reliable, production-ready aluminum electrolytic with automotive-relevant qualification and RoHS compliance, the UCY2V390MHD provides a clear, spec-driven choice from Nichicon’s UCY series.

Request a quote or submit an inquiry to discuss availability, pricing, and suitability for your application.