UKW1A221MED

The UKW1A221MED is a Nichicon UKW-series aluminum electrolytic capacitor engineered for audio and AV equipment. It is a miniature, radial-lead, polarized capacitor offering 220 µF capacitance at a 10 V rating in a compact φ6.3 × 11 mm can.

Designed with the UKW series' revised electrolyte formulation to support audio quality, this part provides defined electrical characteristics for audio applications, including specified ripple current, leakage current and endurance. RoHS compliant. Status: End Of Life.

Key Features

• Electrolytic Core — 220 µF capacitance with ±20% tolerance, polarized for DC coupling and power applications in audio circuits.
• Rated Voltage — 10 V working voltage suitable for low-voltage audio circuitry.
• Audio-Optimized Electrolyte — Part of the UKW series developed to realize a harmonious balance of sound quality through a new electrolyte formulation.
• Loss and Leakage — tanδ (DF) 0.24 (measured at 20°C, 120 Hz) and leakage current 66 µA as specified for the part.
• Ripple Performance — Low-frequency ripple current 230 mA (120 Hz) and high-frequency ripple current 345 mA (10 kHz), enabling smoothing and decoupling performance across audio-relevant frequencies.
• Reliability and Lifetime — Endurance specified as 2000 hours at 85°C with rated voltage applied.
• Compact Radial Package — φ6.3 × 11 mm can, radial lead mounting with 2.5 mm lead spacing (±0.5 mm); available in bulk or bag packing (no terminal forming).
• Temperature Range — Operates from −40°C to +85°C.
• Compliance — RoHS compliant.

Typical Applications

• Audio and AV equipment — Intended for use in consumer and professional audio/AV products where a compact 220 µF, 10 V polarized electrolytic is required.
• Compact audio modules — Small φ6.3 × 11 mm footprint makes it suitable for space-constrained audio boards and modules.
• AV component assemblies — Suited to AV system boards that require audio-focused capacitor characteristics from the UKW series.

Unique Advantages

• Audio-focused formulation: UKW series electrolyte development targeted at achieving a harmonious balance of sound quality for AV and audio applications.
• Measurable electrical characteristics: Specified tanδ (0.24 at 20°C/120 Hz) and a defined leakage current (66 µA) support predictable design margins.
• Frequency-aware ripple specs: Rated ripple currents given for 120 Hz and 10 kHz (230 mA and 345 mA respectively) provide clarity for low- and high-frequency filtering tasks.
• Compact radial package: φ6.3 × 11 mm can and 2.5 mm lead spacing enable integration into tight PCB layouts.
• Endurance at elevated temperature: 2000 hours at 85°C with rated voltage applied gives a defined lifetime expectation for thermal stress conditions.
• Regulatory compliance: RoHS status ensures alignment with lead-free materials requirements.

Why Choose UKW1A221MED?

UKW1A221MED is positioned for designers of audio and AV equipment who need a compact, specified aluminum electrolytic capacitor with audio-oriented electrolyte formulation and clearly defined electrical parameters. Its combination of 220 µF capacitance, 10 V rating, frequency-specific ripple data and 2000-hour endurance at 85°C makes it suitable where predictable electrical behavior and a small footprint matter.

Because this part is End Of Life, engineers evaluating legacy designs or replacement components can rely on the published specifications and measured parameters to assess fit; for long-term programs, consider discussing availability and suitable alternatives based on these exact characteristics.

Request a quote or contact sales to discuss availability, lead times, or help identifying alternative parts with comparable electrical and mechanical specifications.