UPW1H331MPD

The UPW1H331MPD is a miniature, radial-lead aluminum electrolytic capacitor in Nichicon’s UPW series designed for high-reliability power applications. It provides 330 µF capacitance at a 50 V rating with low impedance and robust endurance for demanding thermal and ripple conditions.

Optimized for power filtering in compact systems, this capacitor targets switching power supplies and other applications that require stable capacitance, controlled loss (tan δ), and long life under elevated temperature stress.

Key Features

• Capacitance & Voltage: 330 µF rated capacitance with a 50 V rating and capacitance tolerance of −20% to +20% for predictable charge storage in DC power rails.
• Low Loss / Low Impedance: Specified tan δ of 0.10 (measured at 20°C, 120 Hz) and nominal impedance of 180 mΩ for improved ripple performance and reduced power dissipation.
• Ripple Current Handling: Rated low-frequency ripple current of 669.5 mA at 120 Hz and high-frequency ripple current of 1.03 A at 10 kHz to support switching environments.
• High Reliability Endurance: Life rating of 5,000 hours at 105°C, meeting endurance requirements for prolonged high-temperature operation.
• Wide Temperature Range: Operating range from −55°C to +105°C to accommodate harsh thermal environments.
• Compact Radial Package: φ10 × 20 mm can with 5.0 mm lead spacing (±0.5 mm), radial lead mounting for through-hole assemblies; available in bulk or bag packing.
• Leakage Current: Specified leakage current of 495 µA for predictable standby losses.
• AEC-Q200 Rated: Designed to meet specified AEC-Q200 requirements for enhanced reliability in electronic systems.

Typical Applications

• Switching Power Supplies: Low impedance and defined ripple ratings make this capacitor suitable for input/output filtering and smoothing in compact switching regulators.
• Automotive Electronics: AEC-Q200 rating and wide temperature range support use in automotive electronic modules where durability and thermal stability are required.
• Power Rail Decoupling: Compact size and high capacitance enable effective decoupling and energy buffering on tightly packaged power distribution boards.

Unique Advantages

• Compact, high-capacitance solution: 330 µF in a φ10 × 20 mm can provides substantial capacitance in a small footprint to save board space.
• Measured low impedance and loss: 180 mΩ impedance and tan δ of 0.10 reduce voltage ripple and heat generation under load.
• Proven ripple performance: Specified ripple current values at 120 Hz and 10 kHz support reliable operation across switching frequencies.
• Extended high-temperature life: 5,000 hours at 105°C offers long-term stability for designs exposed to elevated temperatures.
• Automotive-grade reliability: AEC-Q200 rating provides a recognized qualification path for designs that demand higher component stress screening.
• Through-hole robustness: Radial lead package with defined 5.0 mm lead spacing and 0.6–0.8 mm lead diameter for secure solder and mechanical mounting.

Why Choose UPW1H331MPD?

UPW1H331MPD combines a compact radial-can package with high capacitance, low impedance, and defined ripple capabilities—positioning it for power supply filtering and decoupling in space-constrained, thermally demanding designs. Its 50 V rating, controlled loss (tan δ), and leakage current specification provide predictable electrical behavior for power electronics engineers.

With a −55°C to +105°C operating range, 5,000-hour endurance at 105°C, and AEC-Q200 rating, this part is suited for designs that require long-term robustness and repeatable performance across temperature and frequency. It is a practical choice for engineers and procurement teams specifying components for reliable power systems.

If you would like pricing, availability, or a formal quote for UPW1H331MPD, please request a quote or submit an inquiry and our team will respond with detailed commercial information.