UPW1E390MDD

The UPW1E390MDD is a miniature, low-impedance aluminum electrolytic capacitor in a radial-lead can designed for compact power-filtering applications. It provides 39 µF capacitance at a 25 V rating with polarized construction for through-hole assemblies.

Targeted for switching power supplies and electronic control modules, this part combines a wide operating temperature range (−55°C to 105°C) with AEC-Q200 qualification and a 2000-hour endurance at 105°C to address demanding reliability and thermal environments.

Key Features

• Electrical Performance — 39 µF nominal capacitance at 25 V with capacitance tolerance −20% to 20% and tanδ of 0.14 measured at 20°C, 120 Hz for predictable filtering behavior.
• Ripple Handling — Low-frequency ripple current 54 mA (120 Hz) and high-frequency ripple current 180 mA (10 kHz) to support both bulk filtering and high-frequency decoupling in power stages.
• Leakage and Endurance — Specified leakage current of 29.25 µA and rated life of 2000 hours at 105°C, enabling sustained performance under elevated temperature stress.
• Thermal Range — Wide operating temperature range from −55°C to 105°C for use across harsh thermal environments.
• Package & Mounting — Radial lead can (φ5 × 11 mm) with 2.0 mm lead spacing (±0.5 mm) for through-hole PCBs and easy insertion; available in bulk or bag packing.
• Automotive-Grade Qualification — AEC-Q200 rating for use in automotive electronic systems and other high-reliability applications.

Typical Applications

• Switching Power Supplies — Provides low-impedance bulk and output filtering to reduce ripple and improve regulator stability in compact SMPS designs.
• Automotive Electronic Modules — Suited for control units and power management circuits that require AEC-Q200-qualified components and extended temperature performance.
• DC–DC Converters — Used for input/output decoupling and energy storage where a compact radial electrolytic is required.

Unique Advantages

• Compact, Low-Impedance Form Factor — φ5 × 11 mm can size delivers capacitance density and low ESR suitable for space-constrained power designs.
• Designed for High-Frequency and Low-Frequency Ripple — Specified ripple currents at both 120 Hz and 10 kHz enable a single part to address multiple filtering roles.
• Wide Temperature and Endurance Specification — −55°C to 105°C range and 2000-hour life at 105°C support long-term reliability in thermally demanding applications.
• Automotive-Grade Qualification — AEC-Q200 rating provides traceable qualification for automotive and similarly rigorous use cases.
• Through-Hole Convenience — Radial lead package and standard 2.0 mm lead spacing simplify prototyping and repair-friendly PCB assembly.

Why Choose UPW1E390MDD?

UPW1E390MDD balances compact size, predictable electrical behavior, and automotive-grade qualification to serve switching power supplies, DC–DC converters, and automotive electronic modules. Its specified ripple handling at both low and high frequencies, combined with a broad temperature range and defined 2000-hour endurance at 105°C, makes it a practical choice where space, thermal resilience, and reliability matter.

This part is appropriate for engineers and procurement teams seeking a through-hole aluminum electrolytic with clear electrical specifications, AEC-Q200 qualification, and packaging options for volume handling or small-batch assembly.

Request a quote or submit a parts inquiry for UPW1E390MDD to receive pricing, availability, and lead-time information.