UBW1E331MPD

The UBW1E331MPD is a radial-lead aluminum electrolytic capacitor offering 330 µF capacitance at 25 V in a compact φ10 × 16 mm can. Engineered for long-life performance and elevated operating temperatures, this part targets electronics that require stable bulk capacitance, low impedance, and robust ripple handling.

With an operating range from -55°C to +135°C, AEC-Q200 rating, and a rated endurance of 2000 hours at 135°C, the UBW1E331MPD is positioned for demanding environments where temperature resilience and reliability are essential. Packaging is available in bulk (no terminal forming) or bag packing, and the part is in mass production.

Key Features

• Capacitance & Voltage — 330 µF rated capacitance at 25 V with ±20% tolerance for predictable energy storage.
• High-temperature operation — Rated for -55°C to +135°C and specified for 2000 hours endurance at 135°C to support prolonged use in hot environments.
• Ripple current capability — Low-frequency ripple current 633.15 mA (120 Hz) and high-frequency ripple current 945 mA (10 kHz) to support smoothing under AC ripple and switching loads.
• Low loss and impedance — Tangent of loss angle (tan δ) 0.14 at 20°C and 120 Hz and an impedance of 75 mΩ, delivering efficient AC performance and reduced heating.
• Leakage current — Measured leakage current of 247.5 µA for predictable standby and low-loss behavior in DC applications.
• Mechanical footprint — Radial can package (φ10 × 16 mm) with 5 mm lead spacing and polarized leads for through-hole mounting and straightforward board integration.
• Automotive-grade qualification — AEC-Q200 rating for applicability in qualified automotive electronics applications.

Typical Applications

• Automotive electronic systems — Suited for automotive modules where AEC-Q200 qualification and operation to +135°C are required.
• High-temperature power modules — Bulk energy storage and smoothing in power assemblies that must withstand elevated ambient temperatures.
• Harsh-environment electronics — Use in electronics exposed to wide temperature ranges (−55°C to +135°C) where long-term endurance is needed.

Unique Advantages

• Designed for high-temperature endurance: Specified 2000 hours at 135°C to provide long life under sustained elevated temperatures.
• Automotive-grade qualification: AEC-Q200 rating enables integration into qualified automotive designs requiring standardized reliability metrics.
• Strong ripple handling: Distinct low- and high-frequency ripple current ratings (633.15 mA @120 Hz; 945 mA @10 kHz) to reduce heating and support switching supplies.
• Low impedance and controlled dissipation: 75 mΩ impedance and tan δ of 0.14 (20°C, 120 Hz) for efficient energy delivery and reduced AC loss.
• Compact through‑hole form factor: φ10 × 16 mm radial can with 5 mm lead spacing provides a small footprint that is easy to mount and handle in assembly.
• Production readiness: Available in bulk or bag packing and listed as mass production for predictable supply and procurement.

Why Choose UBW1E331MPD?

The UBW1E331MPD combines a compact radial can with high-temperature endurance, measurable low impedance, and strong ripple capabilities to meet the needs of systems operating across a wide temperature range. Its AEC-Q200 rating and 2000-hour life at 135°C make it appropriate for designs that require qualification-level reliability in demanding environments.

This part is well suited to designers and procurement teams specifying through-hole bulk capacitance for automotive and high-temperature electronic assemblies. Its combination of verified ripple performance, low leakage, and compact size delivers long-term value for applications where thermal resilience and consistent capacitance are priorities.

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