UPW2A331MHD

The UPW2A331MHD is a miniature, radial-leaded aluminum electrolytic capacitor from Nichicon's UPW series, designed for low impedance and high reliability in power electronics. With a 330 µF capacitance at 100 V and AEC-Q200 qualification, it targets compact switching power supplies and automotive electronic power systems where long life and robust ripple handling are required.

Key Features

• Electrical Performance — 330 µF nominal capacitance at 100 V with polarization and ±20% tolerance (120 Hz, 20°C).
• Low Impedance — Rated impedance of 180 mΩ, helping to reduce voltage ripple and improve transient response in power stages.
• High Ripple Capability — Rated ripple current of 702 mA at 120 Hz and 1.08 A at 10 kHz, suitable for both low- and high-frequency filtering in switching supplies.
• Thermal and Endurance — Operating temperature range from −55°C to +105°C and guaranteed endurance of 8000 hours at 105°C under rated conditions.
• Reliability — AEC-Q200 qualification for applications requiring automotive-grade reliability.
• Compact Radial Can Package — Small footprint (L: 2.5 × D: 1.6 cm) with 7.5 mm lead spacing and radial lead mounting for easy placement in dense boards.
• Leakage and Dissipation — Leakage current specified as not more than 0.03CV (µA) after one minute at 20°C; tangent of loss angle (tan δ) for 100 V is specified at 0.08 (120 Hz, 20°C).

Typical Applications

• Switching Power Supplies — Bulk and output filtering to reduce ripple and support fast transient loads in compact converters.
• Automotive Electronic Power Systems — Power filtering and energy storage where AEC-Q200 qualification and extended high-temperature endurance are required.
• Compact Power Modules — Space-constrained DC–DC modules and power assemblies that benefit from a miniature, low-impedance radial can.

Unique Advantages

• AEC-Q200 Qualified: Meets AEC-Q200 reliability requirements, enabling use in automotive and other high-reliability applications.
• High Temperature Endurance: 8000 hours at 105°C provides long operational life in thermally demanding designs.
• Broad Ripple Performance: Specified ripple currents at 120 Hz and 10 kHz support both mains-frequency smoothing and high-frequency switching environments.
• Compact Footprint: 2.5 × 1.6 cm can size with radial leads and 7.5 mm spacing simplifies integration into dense PCBs.
• Low Leakage and Low Loss: Leakage current capped by 0.03CV(µA) and tan δ of 0.08 at 100 V help minimize standby losses and thermal rise.
• Wide Temperature Range: −55°C to +105°C operation ensures stable performance across harsh environmental conditions.

Why Choose UPW2A331MHD?

UPW2A331MHD combines the UPW series’ miniature, low-impedance design with AEC-Q200 qualification and long high-temperature endurance, making it a solid choice for compact power designs where reliability and ripple handling matter. It suits engineers developing switching power supplies and automotive power electronics who need verified lifetime, predictable leakage characteristics, and compact radial-can packaging.

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