UPS2E331MRD

The UPS2E331MRD is an aluminum electrolytic, radial-lead capacitor designed for switching power supplies and general-purpose power electronics. It provides a compact, polarized can package with a focus on low impedance, wide operating temperature, and service life under elevated temperature stress.

Key specifications include 330 µF capacitance at 250 V rated voltage, a capacitance tolerance of ±20%, and RoHS compliance. The part is optimized for through-hole mounting with 1.0 cm lead spacing and a radial can package footprint.

Key Features

• Electrical Performance — 330 µF nominal capacitance at 250 V rated voltage with ±20% tolerance; polarized design suited for DC filtering and energy storage.
• Low Leakage — Series leakage specification: after 1 minute at 20°C the leakage current is not more than 0.03·C·V (µA), providing predictable DC behaviour after voltage application.
• Ripple Current Capability — Rated ripple currents of 1.15 A at 120 Hz and 1.323 A at 10 kHz, with frequency coefficients defined across common ripple frequencies for sizing in switching applications.
• Wide Operating Temperature — Specified operating range from −40°C to +105°C, supporting elevated-temperature operation in many power designs.
• Reliability / Life — Endurance defined as 3000 hours at 105°C under rated voltage plus rated ripple current, enabling long-term operation in thermally demanding environments.
• Mechanical / Package — Radial lead, can-style package with 1.0 cm lead spacing and dimensions L: 5 cm × D: 2.2 cm; polarized mounting for through-hole assembly.
• Environmental Compliance — Compliant to the RoHS directive (2011/65/EU, (EU)2015/863).

Typical Applications

• Switching Power Supplies — Bulk and output filtering where low impedance and defined ripple handling are required at high DC voltage.
• Power Conversion Modules — Energy storage and smoothing in DC–DC converters and power supply front ends.
• General Purpose Power Electronics — Through-hole, polarized capacitance for industrial and commercial power circuits requiring 250 V rating and elevated-temperature endurance.

Unique Advantages

• Compact, High-Voltage Solution: 330 µF at 250 V in a miniature radial can provides a dense capacitance option for high-voltage power designs.
• Designed for Switching Environments: Low-impedance construction and specified ripple current at both low and high frequencies help manage ripple heating and ESR-related losses.
• Robust High-Temperature Endurance: Rated for 3000 hours at 105°C, offering predictable life characteristics for thermally stressed installations.
• Predictable Leakage Behaviour: Leakage current defined as ≤0.03·C·V (µA) after 1 minute at 20°C, aiding in margining and start-up charge calculations.
• Through-Hole, Serviceable Package: Radial lead, can-style construction with 1.0 cm lead spacing simplifies PCB layout for replacement and prototyping.
• RoHS Compliant: Meets applicable RoHS directives, supporting regulatory compliance in many global markets.

Why Choose UPS2E331MRD?

The UPS2E331MRD positions itself as a technical, specification-driven choice for engineers building switching power supplies and general-purpose power electronics that require high-voltage capacitance in a compact through-hole package. Its combination of 250 V rating, 330 µF capacitance, defined ripple current at multiple frequencies, and 3000-hour endurance at 105°C provides a measurable basis for thermal and lifetime design margins.

This part is suited for designers who need predictable leakage, clear frequency-dependent ripple handling, and a radial-can form factor for ease of PCB integration and serviceability, while maintaining RoHS compliance.

If you would like pricing, availability, or a formal quote for UPS2E331MRD, please request a quote or contact sales to discuss your quantity and delivery needs.