UUX2E3R9MNL1GS

The UUX2E3R9MNL1GS is a surface-mount aluminum electrolytic capacitor in Nichicon’s UUX series, offering 3.9 µF capacitance at a 250 V rating. Designed as a chip-type, wide-temperature-range electrolytic, it combines a compact φ8 × 10 mm can-style SMD package with specifications tuned for demanding environments.

With AEC-Q200 qualification, a rated temperature range of −40 °C to 105 °C, and a 3000-hour endurance at 105 °C, this part targets applications that require automotive-grade reliability and predictable electrical performance (tanδ, leakage, and ripple current) across temperature and frequency.

Key Features

• Electrical Performance — 3.9 µF capacitance at 250 V with a tolerance of −20% to +20%, and tanδ of 0.20 (measured at 20 °C, 120 Hz) for defined loss behavior.
• Leakage Current — Specified leakage current of 139 µA (I = 0.04CV + 100 μA for 160–400 V range; calculated for this part at 250 V), enabling predictable bias characteristics in design.
• Ripple Current Ratings — Low-frequency ripple current 34 mA (120 Hz) and high-frequency ripple current 56.78 mA (10 kHz) to support smoothing and decoupling duties in power circuits.
• Thermal & Endurance — Rated for operation from −40 °C to 105 °C with endurance of 3000 hours at 105 °C when the rated voltage is applied, supporting long-term reliability in high-temperature conditions.
• Automotive Qualification — AEC-Q200 rated, suitable for applications that require an automotive-grade electrolytic capacitor.
• Compact SMD Can Package — Chip-type radial can (SMD) in a φ8 × 10 mm footprint with recommended land size L: 8.3 × W: 8.3 mm and supplied in embossed carrier taping for automated assembly.

Typical Applications

• Automotive power electronics — Used for smoothing, decoupling and energy buffering in automotive control modules where 250 V rating, AEC-Q200 qualification, and 105 °C endurance are required.
• High-voltage DC circuits — Integration into DC link and bias networks that need a compact 250 V, 3.9 µF electrolytic with defined leakage and ripple specifications.
• Control and sensor modules — Local decoupling and filtering in electronic control units and sensor interface boards operating across wide temperature ranges.

Unique Advantages

• Automotive-grade reliability — AEC-Q200 rating and 3000-hour endurance at 105 °C provide documented robustness for vehicle systems and other harsh environments.
• Predictable electrical behavior — Specified tanδ, leakage current formula, and ripple current values allow accurate thermal and electrical margining in designs.
• Compact SMD can footprint — φ8 × 10 mm package with embossed carrier taping simplifies pick-and-place assembly while conserving board area.
• Wide operating temperature — −40 °C to 105 °C range supports use across a broad set of ambient and under-hood conditions.
• Long-life performance — 3000 hours at 105 °C under rated voltage helps reduce maintenance and replacement needs in deployed systems.

Why Choose UUX2E3R9MNL1GS?

The UUX2E3R9MNL1GS delivers a concise, specification-driven solution for designers needing a 250 V aluminum electrolytic capacitor with automotive-grade qualifications and long-term high-temperature endurance. Its defined loss, leakage, and ripple specifications make it straightforward to model in power and control circuits, while the compact SMD can eases board-level integration.

This part is well suited for engineers designing vehicle electronics, high-voltage DC circuits, and other systems that demand predictable behavior over temperature and time. Backed by Nichicon’s UUX series specifications, it provides a balance of electrical performance and assembly convenience for production environments.

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