UCS2G220MHD

The UCS2G220MHD from Nichicon is a radial lead aluminum electrolytic capacitor in the UCS series designed for general-purpose power applications. It delivers 22 µF at a 400 V rating in a compact φ12.5 × 20 mm can with 5 mm lead spacing.

Engineered for high ripple environments, this part combines high-frequency ripple capability, extended endurance and a wide operating temperature range to support power supply and ballast applications where long-term reliability is required.

Key Features

• Electrical Performance — 22 µF capacitance at 400 V rated voltage with tolerance of -20%~20%; polarized design suitable for DC applications.
• Loss and Leakage — tan δ = 0.24 (measured at 20°C, 120 Hz) and a measured leakage current of 452 µA, enabling predictable loss and standby behavior.
• Ripple Current Capability — Low-frequency ripple current 380 mA at 120 Hz and high-frequency ripple current 760 mA at 100 kHz to support switching and high-frequency filtering.
• Reliability and Endurance — Rated life of 10000 hours at 105°C, with an operating temperature range of -40°C to +105°C for long-term stability under elevated temperatures.
• Compact Radial Package — φ12.5 × 20 mm can with 5 mm lead spacing (±0.5 mm), radial lead mounting for through-hole assemblies; available in bulk or bag packing.
• Compliance and Availability — RoHS compliant and in mass production, simplifying procurement and regulatory management.

Typical Applications

• Power Supply Filter — Output and bulk filtering in DC power supplies where 400 V rating and high ripple current handling at switching frequencies are required.
• Ballast Circuits — Designed for ballast applications called out in the datasheet, providing durable performance under prolonged AC/DC stress.
• High-Frequency Filtering — Suitable for high-frequency ripple suppression in switching power stages thanks to a specified 760 mA ripple current at 100 kHz.

Unique Advantages

• High-Voltage Capability: 400 V rating supports high-voltage rails and reduces the need for series arrangements in many designs.
• Compact Footprint: φ12.5 × 20 mm can delivers 22 µF in a small radial package for tighter board layouts.
• High Ripple Endurance: Specified ripple currents at both 120 Hz and 100 kHz accommodate both mains-frequency and switching-frequency stress.
• Extended High-Temperature Life: 10000 hours at 105°C provides long-term reliability in thermally demanding environments.
• Predictable Leakage and Dissipation: Measured leakage current (452 µA) and tan δ (0.24) give designers clear parameters for loss budgeting and thermal design.
• Production-Ready and Compliant: RoHS compliant and in mass production for stable sourcing and regulatory alignment.

Why Choose UCS2G220MHD?

UCS2G220MHD positions itself as a reliable, high-voltage electrolytic solution for designers needing a compact radial lead capacitor with strong ripple handling and long-term endurance. Its combination of 400 V rating, validated ripple current at switching frequencies, and a 10000-hour life at 105°C makes it suitable for robust power supply and ballast designs.

Manufactured by Nichicon and available in production quantities, this part is a practical choice for engineers and procurement teams seeking a predictable, standards-compliant component for general-purpose DC filtering and high-frequency power applications.

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