UBW1A331MPD

The UBW1A331MPD is a radial-lead aluminum electrolytic capacitor designed for high-temperature, long-life applications. It delivers 330 µF at 10 V in a compact φ10 × 12.5 mm can with a 5 mm lead spacing, combining high capacitance density with a small footprint.

Targeted at demanding environments, the UBW1A331MPD provides high-temperature endurance (rated to +135°C), AEC-Q200 qualification, and robust ripple handling, making it suitable for automotive and other high-reliability power applications.

Key Features

• Capacitance & Voltage — 330 µF nominal capacitance with a rated voltage of 10 V and tolerance of ±20% (−20% to +20%).
• High-temperature Endurance — Rated operating range −55°C to +135°C with a specified lifetime of 2000 hours at 135°C.
• AEC-Q200 Qualification — AEC-Q200 rating for use where automotive-grade passive qualification is required.
• Low Impedance — Nominal impedance of 150 mΩ supports stable filtering and decoupling in power circuits.
• Ripple Current Performance — Low-frequency ripple current 415.4 mA (120 Hz) and high-frequency ripple current 620 mA (10 kHz) for reliable operation under AC stress.
• Loss Characteristics — tan δ (DF) max 0.20 at 20°C, 120 Hz, 10 V, supporting predictable dissipation behavior.
• Leakage Current — Specified leakage current of 99 µA at test conditions, aiding in predictable standby and low-current designs.
• Form Factor & Mounting — Radial-lead, can-style package: φ10 × 12.5 mm (height 1.25 cm) with 5.0 mm lead spacing (±0.5 mm). Available in bulk or bag packing.

Typical Applications

• Automotive electronics — AEC-Q200 qualification and +135°C endurance make this capacitor suitable for automotive power modules and electronics operating at elevated temperatures.
• Power supply smoothing — Low impedance and specified ripple current ratings support output filtering and decoupling in high-temperature power supplies.
• Industrial controls — Compact radial can provides bulk capacitance and reliable performance in space-constrained control and driver circuits exposed to harsh environments.

Unique Advantages

• High-temperature reliability: Rated to +135°C with 2000 hours endurance at that temperature, providing predictable life in hot operating environments.
• Automotive-grade qualification: AEC-Q200 rating supports use in applications requiring recognized passive component qualification.
• Compact, high-density package: φ10 × 12.5 mm can delivers 330 µF in a small footprint for dense board layouts.
• Effective ripple handling: Specified LF and HF ripple current values (415.4 mA at 120 Hz; 620 mA at 10 kHz) reduce the risk of thermal stress under AC loading.
• Predictable electrical behavior: Low impedance (150 mΩ), defined tan δ, and measured leakage current (99 µA) enable accurate system-level design and thermal budgeting.
• Through‑hole robustness: Radial lead format with 5 mm lead spacing simplifies through-hole assembly and mechanical retention.

Why Choose UBW1A331MPD?

The UBW1A331MPD combines compact geometry with high-temperature endurance and automotive-grade qualification, offering a reliable bulk-capacitance solution for demanding power-electronics designs. Its defined electrical parameters—low impedance, specified ripple currents, controlled tan δ, and measured leakage—help engineers design predictable, robust power filtering and decoupling stages.

This part is well suited to designers of automotive and industrial systems that require long-term stability at elevated temperatures, AEC-Q200 qualification, and a through-hole mounting option. Mass-production status and Nichicon’s UBW series specification set provide a clear performance baseline for procurement and product planning.

Request a quote or submit an RFQ to receive pricing and availability for UBW1A331MPD and to discuss packaging or volume options with the supplier.