UKW1H103MRD

The UKW1H103MRD is a radial-lead aluminum electrolytic capacitor from Nichicon’s UKW series, engineered for audio and AV equipment. It delivers high bulk capacitance (10,000 µF) at a 50 V rating in a compact φ25 × 50 mm can for power-supply smoothing, decoupling and energy storage in audio designs.

Designed with an audio-optimized electrolyte, the UKW series aims to realize a harmonious balance of sound quality while providing measurable electrical performance: tanδ 0.12 (20°C, 120 Hz), rated ripple handling up to 4.6 A (10 kHz), and 2,000 hours endurance at 85°C. RoHS compliant. Note: this part is designated End Of Life; contact sales for available stock and packaging options.

Key Features

• High Capacitance & Voltage: 10,000 µF at 50 V provides substantial bulk energy for smoothing and reservoir applications in audio power supplies.
• Audio-Optimized Electrolyte: Series development targeted at a harmonious audio performance, suitable for AV and audio equipment designs.
• Loss and Frequency Performance: tanδ = 0.12 measured at 20°C, 120 Hz, offering defined loss characteristics for audio-frequency use.
• High Ripple Current Capability: Rated low-frequency ripple current 4.0 A at 120 Hz and high-frequency ripple current 4.6 A at 10 kHz to handle supply ripple across audio-relevant bandwidths.
• Endurance and Temperature Range: 2,000 hours life at 85°C with operating range –40°C to +85°C for reliable operation in typical AV environments.
• Radial Lead, Compact Can Package: φ25 × 50 mm case with 12.5 mm lead spacing and radial-lead mounting for through-hole PCB assemblies; available in bulk (no terminal forming) or bag packing.
• Leakage and Polarization: Polarized aluminum electrolytic construction with specified leakage current value of 15,000 µA for this part number.
• Environmental Compliance: RoHS compliant, matching modern regulatory expectations for electronic components.

Typical Applications

• Audio Power Supplies: Bulk energy storage and smoothing for amplifier rails and power circuits in AV systems where high capacitance is required.
• AV Equipment: Supply decoupling and reservoir capacitors in receivers, preamps and consumer AV electronics that benefit from audio-focused electrolytic behavior.
• DC Filtering in Power Modules: Filtering and ripple attenuation in mid-power supplies, leveraging the 10,000 µF capacitance and rated ripple current characteristics.

Unique Advantages

• Substantial Bulk Capacitance: 10,000 µF reduces the need for multiple parallel capacitors when large energy storage is required.
• Audio-Focused Electrolyte: Series-level electrolyte development targeted at audio performance provides a measured approach to sound quality in AV applications.
• Defined Loss Characteristics: tanδ specified at 0.12 (20°C, 120 Hz) gives designers a clear parameter for audio-frequency loss planning.
• Robust Ripple Handling: Rated ripple currents of 4.0 A (120 Hz) and 4.6 A (10 kHz) support both low- and high-frequency ripple conditions common in audio power circuits.
• Temperature and Endurance Specified: –40°C to +85°C operating range and 2,000 hours at 85°C life rating enable predictable lifetime behavior in AV equipment.
• RoHS Compliance: Meets RoHS directive requirements for environmental and regulatory compatibility.

Why Choose UKW1H103MRD?

UKW1H103MRD positions itself as a high-capacitance, audio-oriented aluminum electrolytic solution for designers needing substantial reservoir capacitance and defined ripple performance in AV and audio power systems. Its combination of 10,000 µF at 50 V, measurable loss characteristics, and specified ripple currents make it suitable for smoothing and decoupling duties where audio performance and predictable electrical behavior matter.

This part is appropriate for engineers and procurement teams working on consumer and professional AV designs that require long endurance at elevated temperature and RoHS compliance. Given the End Of Life status, plan procurement and lifecycle options accordingly and consult sales on current availability or recommended replacements.

Request a quote or contact our sales team to discuss available stock, packaging options, and support for end-of-life planning or replacement recommendations.