UKA1H220MDD

The UKA1H220MDD is a radial lead aluminum electrolytic capacitor from Nichicon’s UKA series, designed for audio equipment and high-grade audio applications. It is a polarized, miniature can-type capacitor offering 22 µF capacitance at a 50 V rating with a compact φ5 × 11 mm package and 2 mm lead spacing.

Built for wide temperature operation and extended endurance, the UKA1H220MDD supports designs that require stable performance from −55°C to 105°C and a rated life of 2000 hours at 105°C.

Key Features

• Capacitance & Voltage — 22 µF nominal capacitance with a 50 V rated voltage and a tolerance of −20% to +20%.
• Audio-Optimized Loss — Tangent of loss angle (tanδ) of 0.14 measured at 20°C, 120 Hz, supporting low dissipation for audio applications.
• Wide Temperature Range — Specified operating temperature from −55°C to 105°C for reliable operation across demanding environments.
• Endurance — 2000 hours life rating at 105°C when operated at rated voltage, suitable for designs requiring long-term stability.
• Ripple & Leakage — Low-frequency ripple current 68 mA (120 Hz) and high-frequency ripple current 136 mA (10 kHz), with specified leakage current of 33 µA.
• Compact Radial Packaging — Small φ5 × 11 mm can, radial lead mounting with 2 mm lead spacing (±0.5 mm), available in bulk (no terminal forming) or bag packing.
• Qualification — Listed with Ratings: AEC-Q200 as provided in the product specifications.

Typical Applications

• High‑grade Audio Equipment — Filtering and decoupling in audio circuits where compact, low-loss capacitors are required for signal path and power supply stages.
• Audio Amplifiers and Preamplifiers — Local supply smoothing and coupling/decoupling tasks within amplifier modules to support stable audio performance across temperature.
• Compact Consumer Audio Devices — Board-level power conditioning in space-constrained designs due to the capacitor’s miniature φ5 × 11 mm package.

Unique Advantages

• Small footprint for tight layouts: The φ5 × 11 mm can and 2 mm lead spacing make the UKA1H220MDD suitable for compact PCB designs.
• Wide operating temperature: −55°C to 105°C rating helps maintain capacitance and performance across harsh thermal environments.
• Low dissipation at audio frequencies: tanδ of 0.14 (20°C, 120 Hz) indicates modest loss characteristics useful in audio signal and power circuits.
• Ripple handling capability: Specified ripple currents—68 mA at 120 Hz and 136 mA at 10 kHz—support both low‑ and high‑frequency ripple conditions encountered in audio power stages.
• Extended endurance: 2000 hours at 105°C provides predictable long-term behavior for stable product lifecycles.
• AEC-Q200 rated: Conformance to the listed AEC-Q200 rating supports use in designs requiring passive component stress qualification.

Why Choose UKA1H220MDD?

The UKA1H220MDD positions itself as a compact, audio-focused electrolytic capacitor combining a small can footprint with audio-oriented electrical characteristics and a wide temperature range. Its combination of 22 µF/50 V rating, low tanδ at 120 Hz, defined ripple current capabilities, and 2000 h endurance at 105°C makes it appropriate for engineers designing high-grade audio equipment and compact audio modules that require reliable power filtering and decoupling.

As part of Nichicon’s UKA series, this part brings measured, datasheet-backed specifications that assist in predictable BOM selection and thermal design decisions for demanding audio applications.

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