UKW1H222MHD

The UKW1H222MHD is a Nichicon UKW-series aluminum electrolytic capacitor in a radial-lead can optimized for audio and AV equipment. It delivers a high-capacitance 2200 µF value at 50 V in a compact φ16 × 35.5 mm package with 7.5 mm lead spacing.

Designed for applications that demand robust ripple handling and long operating life, this part combines a low dissipation factor and defined endurance at elevated temperature to support smoothing, decoupling and power-filtering duties in audio systems.

Key Features

• Capacitance & Rated Voltage — 2200 µF nominal capacitance at 50 V with ±20% tolerance, providing substantial energy storage for smoothing and decoupling.
• Low Dissipation Factor — tanδ = 0.14 (measured at 20°C, 120 Hz), minimizing loss and heat generation in AC/ripple conditions.
• High Ripple Current Capability — 2.09 A at 120 Hz (low frequency) and 2.404 A at 10 kHz (high frequency) to handle real-world audio power-supply ripple and dynamic loads.
• Leakage Current — 3300 µA (per datasheet condition: after 1 minute at rated voltage and 20°C, based on 0.03·C·V).
• Endurance — 2000 hours at 85°C with specified limits on capacitance change, tanδ and leakage current after recovery to 20°C.
• Operating Temperature Range — –40°C to +85°C, suitable for a wide range of consumer and professional audio environments.
• Package & Mounting — Radial lead can, size φ16 × 35.5 mm, lead spacing 7.5 mm; packaged in bulk/bag packing (no terminal forming) for assembly flexibility.
• RoHS Compliant — Manufactured in accordance with RoHS requirements.

Typical Applications

• Audio and AV equipment — Provides bulk energy storage and supply smoothing for power amplifiers, preamplifiers and other audio signal-path systems.
• Power supply filtering — Used for DC bus smoothing and decoupling in linear and switching supplies where high ripple current capability is required.
• Amplifier decoupling — Supports dynamic current demands in amplifier stages to maintain stable supply rails and low noise.

Unique Advantages

• High ripple-handling capacity: Rated ripple currents of 2.09 A (120 Hz) and 2.404 A (10 kHz) reduce voltage excursion under dynamic load, improving supply stability.
• Low dissipation factor: tanδ = 0.14 at 20°C/120 Hz keeps dielectric losses and self-heating low during AC operation.
• Long endurance at elevated temperature: 2000 hours at 85°C supports designs targeting extended operational life.
• Wide ambient range: –40°C to +85°C operating window enables use across varied environmental conditions common to consumer and professional AV gear.
• Compact radial-can form factor: φ16 × 35.5 mm size with 7.5 mm lead spacing fits many PCB layouts while providing large capacitance per volume.
• Regulatory compliance: RoHS conformity fits modern product environmental requirements.

Why Choose UKW1H222MHD?

The UKW1H222MHD pairs Nichicon's UKW-series audio-oriented electrolyte formulation with a high 2200 µF capacitance and substantial ripple current capability, making it well suited for audio/AV power systems requiring reliable smoothing and decoupling. Its low dissipation factor and 2000-hour endurance at 85°C provide measurable benefits in thermal management and long-term performance.

This radial-lead can is appropriate for engineers specifying capacitors for amplifier power rails, filter networks and supply decoupling where proven electrical characteristics, compact sizing and RoHS compliance are required.

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