UCA2G220MHD

The UCA2G220MHD from Nichicon is a miniature radial-lead aluminum electrolytic capacitor in the UCA series, designed for general-purpose power applications. It combines a 22 µF capacitance with a 400 V rated voltage in a compact radial can package.

Engineered for applications that require elevated ripple handling and extended operating life, this capacitor is suitable for power supplies and ballast applications where long-duration performance and temperature stability are required.

Key Features

• Capacitance & Voltage — 22 µF rated capacitance with a 400 V nominal voltage suited for high-voltage power circuits.
• High Ripple Capability — Rated ripple current of 215 mA at 120 Hz and 430 mA at 100 kHz, with frequency coefficient rising to 1.00 at 100 kHz or more to support high-frequency ripple demands.
• Long Life at Elevated Temperature — Specified load-life endurance of 12,000 hours at 105 °C under rated conditions, with defined limits for capacitance, tan δ and leakage after endurance testing.
• Operating Temperature Range — Designed for operation from −25 °C to +105 °C, providing stability across typical industrial temperature profiles.
• Radial Lead Package — Radial lead (can) package with 5.0 mm lead spacing and compact dimensions (L: 20 mm × D: 12.5 mm), enabling straightforward through-hole mounting and dense board layouts.
• Leakage and Dissipation Characteristics — Leakage current specified as not more than 0.04CV + 100 µA (after 1 minute at 20 °C), and tan δ limits consistent with 400 V rating to aid design margining.
• Capacitance Tolerance — ±20% tolerance at 120 Hz, 20 °C, providing predictable decoupling and energy storage characteristics.
• RoHS Compliant — Conforms to RoHS directive requirements for lead-free materials.

Typical Applications

• Power Supplies — Bulk smoothing, energy storage and ripple filtering in high-voltage supply rails where a compact, high-voltage capacitor is required.
• Ballasts — AC/DC ballast and related power-conditioning circuits that demand stable performance under continuous ripple and elevated temperature.
• General-Purpose Electronics — Through-hole designs requiring a dependable high-voltage electrolytic capacitor for general power conditioning and decoupling tasks.

Unique Advantages

• Compact high-voltage option: 22 µF at 400 V in a miniature radial can enables high-voltage designs without large board footprint impact.
• Frequency-aware ripple performance: Published ripple current values and frequency coefficients up to 100 kHz allow engineers to size capacitors accurately for both low- and high-frequency ripple environments.
• Extended high‑temperature life: 12,000-hour endurance at 105 °C supports long-term reliability in continuous-duty power applications.
• Predictable electrical limits: Clear specifications for leakage current and tan δ simplify margin calculations and reliability assessments.
• Through-hole mounting simplicity: Radial lead format with 5 mm lead spacing eases assembly and rework in conventional PCB manufacturing.

Why Choose UCA2G220MHD?

UCA2G220MHD provides a compact, high-voltage electrolytic solution tailored for power-supply and ballast applications where ripple handling and extended life at elevated temperature are important. Its combination of 22 µF capacitance, 400 V rating, and 12,000-hour endurance at 105 °C makes it suitable for designers seeking a reliable, through-hole aluminum electrolytic capacitor with well-defined performance metrics.

This part is appropriate for engineers specifying general-purpose high-voltage capacitors in industrial and power-conversion designs who need clear datasheet parameters for ripple, leakage, temperature range and lifetime to support robust BOM decisions.

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