UCY2D390MPD

The UCY2D390MPD is a miniature, high-reliability aluminum electrolytic capacitor in Nichicon’s UCY series, configured as a radial-lead can. It provides 39 µF capacitance at a 200 V rated voltage with a polarization and compact φ10×20 mm package footprint.

Designed for demanding power applications, the UCY2D390MPD targets power supply and ballast circuits and automotive electronics that require sustained ripple handling, extended operational life at elevated temperature, and industry-recognized qualification and environmental compliance.

Key Features

• Capacitance & Voltage: 39 µF capacitance rated at 200 V for bulk energy storage and filtering in high-voltage circuits.
• High ripple current capability: Specified ripple current of 325 mA at 120 Hz and 650 mA at 100 kHz to support steady-state and high-frequency ripple conditions.
• Long life at elevated temperature: Endurance rated for 10,000 hours at +105 °C, supporting prolonged operation under thermal stress.
• Thermal range: Operates from –40 °C to +105 °C, compatible with a wide range of environmental conditions.
• Loss characteristics: Tangent of loss angle (tan δ) specified at 0.20 (measured at 20 °C, 120 Hz), providing a defined dissipation characteristic for AC performance planning.
• Leakage current: Specified leakage current of 412 µA, enabling predictable standby and bias current budgeting.
• Compact radial package: φ10×20 mm can with 5.0 mm lead spacing (±0.5 mm) and radial lead mounting for through-hole assemblies.
• Compliance and qualification: AEC‑Q200 qualified and RoHS compliant for applications requiring industry qualification and environmental compliance.
• Packaging options: Available in bulk (no terminal forming) and bag packing to suit prototyping and production handling.

Typical Applications

• Automotive power electronics: Energy storage and ripple smoothing in automotive control modules and power conditioning circuits where AEC‑Q200 qualification is required.
• Power supplies and DC–DC converters: Bulk filtering and output smoothing for high-voltage rails in industrial and embedded power systems.
• Ballast and lighting drivers: Filtering and ripple handling in ballast circuits as noted in UCY series guidance.
• General industrial electronics: High-temperature, long-life filtering for control and driver modules operating up to +105 °C.

Unique Advantages

• Predictable ripple handling: Defined ripple current ratings at 120 Hz and 100 kHz allow designers to size capacitors with frequency-dependent ripple in mind.
• Extended high-temperature endurance: 10,000‑hour life at +105 °C supports designs requiring prolonged operation under elevated thermal load.
• Industry qualification: AEC‑Q200 qualification and RoHS compliance reduce qualification overhead for automotive and regulated applications.
• Compact footprint: φ10×20 mm radial can with 5 mm lead spacing offers space-efficient through-hole mounting for higher-voltage capacitors.
• Controlled electrical characteristics: Specified tan δ and leakage current provide quantifiable parameters for loss and bias current budgeting.
• Packaging flexibility: Bulk and bag options support prototype builds and production throughput requirements.

Why Choose UCY2D390MPD?

The UCY2D390MPD combines compact radial-can packaging with high ripple capability and a long rated life at +105 °C, making it suitable for designers focused on reliable power filtering in harsh thermal environments. Its AEC‑Q200 qualification and RoHS compliance align it with automotive and regulated industrial program requirements.

This part is appropriate for engineering teams integrating high-voltage bulk capacitance into power supplies, ballast circuits, and automotive electronics where predictable electrical characteristics, proven endurance, and established manufacturer support are required.

Request a quote or contact sales to discuss availability, pricing, and sample options for the UCY2D390MPD and to determine fit for your application requirements.