UPJ2A331MHD

The UPJ2A331MHD is a miniature, radial-lead aluminum electrolytic capacitor from Nichicon's UPJ series designed for high-reliability power filtering. It delivers 330 µF capacitance at a 100 V rating in a compact φ16 × 30.5 mm can, suited for general-purpose and switching power supply applications.

Engineered for robust performance, the part combines low impedance (tan δ 0.08 at 20°C, 120 Hz), substantial ripple handling, and a long 5,000-hour endurance at 105°C to support sustained operation in demanding power circuits.

Key Features

• Capacitance & Voltage: 330 µF rated capacitance with a 100 V DC rating and ±20% tolerance at 120 Hz, 20°C—provides bulk energy storage and DC filtering for high-voltage power rails.
• Low Loss / Low Impedance: Tangent of loss angle (tan δ) of 0.08 measured at 20°C, 120 Hz, indicating low dissipation for improved efficiency in power circuits.
• High Ripple Current Capability: Rated ripple current of 672.8 mA at 120 Hz (low frequency) and 1.16 A at 200 kHz (high frequency), enabling effective smoothing under switching conditions.
• Long Endurance: Load life of 5,000 hours at 105°C, supporting reliable long-term operation in elevated-temperature environments.
• Robust Operating Temperature Range: -55°C to +105°C operating range for use across wide environmental conditions.
• Radial-Lead Package: Polar radial-lead can (φ16 × 30.5 mm) with 7.5 mm lead spacing (±0.5 mm), supplied in bulk or bag packing—suitable for through-hole assemblies and serviceable replacement designs.
• Leakage Current: Specified leakage current of 990 µA, measurable after rated voltage application, useful for design margining in power systems.
• Compliance: RoHS compliant.

Typical Applications

• Switching Power Supplies: Bulk and output filtering where low impedance, high ripple current capability and 100 V rating improve regulation and transient response.
• General-Purpose Power Filtering: Smoothing and decoupling on high-voltage DC rails in industrial and electronic equipment that require compact, through-hole components.
• Power Modules and Converters: Energy storage and ripple suppression in DC–DC converters and power modules operating up to 100 V and elevated temperatures.

Unique Advantages

• Rated for 100 V DC: Enables use on higher-voltage rails without series stacking or complex topologies.
• High Ripple Endurance: Defined ripple current ratings at both low (120 Hz) and high (200 kHz) frequencies allow predictable thermal and performance design in switching environments.
• Extended High-Temperature Life: 5,000-hour endurance at 105°C provides predictable longevity for sustained high-temperature duty cycles.
• Low Dissipation (tan δ 0.08): Reduced dielectric losses for improved efficiency and thermal performance in power applications.
• Serviceable Radial-Lead Format: Through-hole can with 7.5 mm lead spacing simplifies assembly, prototyping, and field serviceability.
• RoHS Compliant: Meets environmental directive requirements for lead-free designs.

Why Choose UPJ2A331MHD?

UPJ2A331MHD positions itself as a compact, high-voltage aluminum electrolytic solution for designers needing dependable bulk capacitance and ripple handling in switching and general-purpose power circuits. With a 100 V rating, low tan δ, and specified ripple currents at both low and high frequencies, it supports thermal and electrical design predictability in demanding power applications.

This radial-lead, polar can delivers long-term reliability through a 5,000-hour life at 105°C and a wide -55°C to +105°C operating range, making it a practical choice for engineers prioritizing robustness, serviceability, and straightforward integration into through-hole assemblies.

Request a quote or submit an inquiry to discuss availability, pricing, and lead times for UPJ2A331MHD and to evaluate it for your specific application requirements.