UCY2E390MPD

The UCY2E390MPD is a radial-lead aluminum electrolytic capacitor designed for compact power applications. It provides 39 µF capacitance at a 250 V rating in a small φ10 × 25 mm can, combining high ripple handling, long operational life and a robust temperature range.

Targeted use cases include power supplies and ballast circuits as well as electronics that require an AEC‑Q200 qualified, polarized bulk capacitor with proven endurance at elevated temperature.

Key Features

• Capacitance & Tolerance — 39 µF nominal with a capacitance tolerance of ±20% (–20% to +20%) measured at 120 Hz, 20 °C.
• Rated Voltage & Polarization — 250 V rated voltage and polarized construction suitable for DC filtering and energy‑storage tasks.
• High ripple current capability — Low‑frequency ripple current of 345 mA (120 Hz) and high‑frequency ripple current of 690 mA (100 kHz), enabling effective smoothing in both mains‑frequency and higher‑frequency power circuits.
• Long endurance — Rated life of 12,000 hours at 105 °C under specified DC bias plus rated ripple current, supporting continuous operation in elevated temperature environments.
• Temperature range — Operates from −40 °C to +105 °C to cover a wide range of ambient conditions.
• Low loss — tan δ (loss tangent) ≤ 0.20 at 20 °C, 120 Hz for the 250 V rating, providing predictable dissipation characteristics.
• Compact radial can — φ10 mm diameter and 25 mm length with 5 mm lead spacing (±0.5 mm), optimized for through‑hole PCB mounting where space is constrained.
• Leakage current — Specified leakage current of 490 µA under rated conditions for predictable standby drain.
• Packaging & availability — Supplied in bulk (no terminal forming) or bag packing; product is in mass production.
• Standards & compliance — RoHS compliant and AEC‑Q200 qualified as listed in the product data.

Typical Applications

• Power supplies — Bulk smoothing, DC filtering and energy storage in compact switched‑mode and linear power supplies where 250 V ratings and high ripple current handling are required.
• Ballast and lighting drivers — Filtering and ripple suppression in ballast circuits, leveraging the high ripple capability and extended life at 105 °C.
• Automotive electronics — Use in automotive systems where AEC‑Q200 qualification and operation across −40 °C to +105 °C are required for reliable DC bus and filtering functions.
• Industrial power modules — Local energy buffering and decoupling in industrial power assemblies that demand durable, high‑ripple radial electrolytics.

Unique Advantages

• High ripple tolerance: Explicit low‑ and high‑frequency ripple current ratings (345 mA @120 Hz, 690 mA @100 kHz) let designers specify realistic stress margins for both mains and switching frequencies.
• Extended lifetime at elevated temperature: 12,000 hours at 105 °C provides predictable end‑of‑life behavior for continuous high‑temperature operation.
• Compact footprint: φ10 × 25 mm radial can and 5 mm lead spacing deliver high capacitance density for space‑constrained through‑hole assemblies.
• Predictable dissipation: tan δ ≤ 0.20 at 120 Hz (20 °C) supports thermal planning and loss budgeting in power designs.
• Qualification and compliance: AEC‑Q200 qualification and RoHS compliance support usage in regulated and automotive environments.
• Production readiness: Mass‑production status and standard bulk/bag packaging simplify procurement and assembly planning.

Why Choose UCY2E390MPD?

The UCY2E390MPD is positioned for designers who need a compact, high‑ripple, long‑life electrolytic capacitor for DC filtering and energy buffering in demanding thermal and electrical environments. Its 250 V rating, clear ripple current specifications across frequency, and 12,000‑hour endurance at 105 °C make it suitable for continuous‑duty power applications where predictable performance and lifecycle behavior matter.

With AEC‑Q200 qualification and RoHS compliance, UCY2E390MPD supports regulated applications and automotive designs, while the radial can form factor and standard packaging options simplify board-level integration and volume procurement.

Request a quote or contact sales to discuss availability, lead times and volume pricing for UCY2E390MPD.