UCS2W220MHD

The UCS2W220MHD is a miniature, high-ripple-current aluminum electrolytic capacitor from Nichicon's UCS series. It is a polarized, radial-lead can designed for use in power supply and ballast applications where high voltage handling, compact size, and long operational life are required.

With a 450 V rated voltage, 22 µF capacitance and a rated lifetime of 10,000 hours at 105°C, this part delivers reliable filtering and energy buffering in demanding thermal and electrical environments while remaining RoHS compliant.

Key Features

• High Voltage Rating: 450 V rated voltage suitable for high-voltage power circuits requiring robust DC filtering.
• Nominal Capacitance: 22 µF capacitance with ±20% tolerance for predictable charge storage and decoupling performance.
• High Ripple Current Capability: Rated ripple current of 365 mA at 120 Hz and 730 mA at 100 kHz, enabling effective handling of AC ripple across a wide frequency range.
• Long Operational Life: Designed for 10,000 hours at 105°C under rated conditions, supporting long-term reliability in thermal-stressed applications.
• Compact Radial Package: Radial lead can package with lead spacing 7.5 mm and size L: 2 cm × D: 1.6 cm for compact PCB layouts and through-hole mounting.
• Wide Temperature Range: Operates from −40°C to +105°C to cover a broad range of environmental conditions.
• Leakage and Loss Characteristics: Series-level leakage current defined by ≤0.04CV + 100 μA (after 1 minute at 20°C) and specified tan δ limits per rated voltage for predictable electrical behavior.
• Environmental Compliance: RoHS compliant to relevant directives for use in environmentally regulated product designs.

Typical Applications

• Power Supplies: DC smoothing, bulk energy storage and ripple suppression in high-voltage power supply stages.
• Ballasts and Lighting Electronics: High-voltage filtering and surge handling in ballast circuits and lighting power modules.
• General Purpose High-Voltage Circuits: Use in through-hole assemblies requiring polarized capacitance with long life and elevated ripple capability.

Unique Advantages

• High-voltage handling: 450 V rating enables use in circuits where elevated DC voltages are present, reducing the need for multiple components to achieve required voltage tolerance.
• Designed for ripple-intensive environments: Specified ripple current values at 120 Hz and 100 kHz provide clarity for thermal and RMS current budgeting in design.
• Long life at elevated temperature: 10,000 hours at 105°C supports longevity in thermally demanding applications, lowering maintenance or replacement frequency.
• Compact, through-hole form factor: Small can dimensions (L: 2 cm × D: 1.6 cm) and 7.5 mm lead spacing allow dense PCB placement while retaining radial lead robustness.
• Predictable electrical behavior: Series-provided leakage current formula and tan δ specifications help engineers model performance over temperature and time.
• RoHS compliance: Meets regulatory requirements for lead-free assemblies and environmentally conscious designs.

Why Choose UCS2W220MHD?

The UCS2W220MHD balances high-voltage capability, elevated ripple handling and long-term reliability in a compact radial-lead aluminum electrolytic package. It is well suited to designers who need a dependable polarized capacitor for power supply, ballast, and other high-voltage, high-ripple applications where life at elevated temperature matters.

As part of Nichicon's UCS series, this capacitor provides engineers with clearly specified electrical and lifetime characteristics to simplify component selection and system-level thermal budgeting, supporting robust, maintainable product designs.

If you would like pricing, availability or a formal quote for UCS2W220MHD, please submit a request for quotation or contact our sales channel to get detailed purchasing information and lead-time estimates.