UKW1E470MDD

The UKW1E470MDD is a miniature radial aluminum electrolytic capacitor from Nichicon’s UKW series, optimized for audio equipment and AV applications. It combines a compact radial-can package with an audio-focused electrolyte formulation intended to support a balanced audio performance.

Key electrical characteristics include 47 µF capacitance at 25 V, a rated temperature range of −40 °C to 85 °C, and a 2000-hour endurance at 85 °C. The part is supplied in bulk or bag packing and is RoHS compliant.

Key Features

• Audio-Optimized Electrolyte  Designed in the UKW series to realize a harmonious balance of sound quality, making it suited for audio and AV equipment.
• Capacitance & Voltage  47 µF nominal capacitance with a rated voltage of 25 V and a capacitance tolerance of −20% to +20%.
• Loss & Leakage Characteristics  Tangent of loss angle (tanδ) specified at 0.16 (measured at 20 °C, 120 Hz) and leakage current characterized in the datasheet for reliable bias performance.
• Ripple Current Handling  Rated low-frequency ripple current of 115 mA at 120 Hz and high-frequency ripple current of 230 mA at 10 kHz, enabling decoupling and filtering in audio circuits.
• Compact Radial Package  Small footprint (φ5 × 11 mm) with radial leads and 2 mm lead spacing (±0.5 mm), suitable for tight-layout PCB assemblies.
• Temperature & Endurance  Operating temperature range −40 °C to 85 °C with an endurance rating of 2000 hours at 85 °C.
• RoHS Compliant  Meets RoHS directive requirements for environmental compliance.

Typical Applications

• Audio and AV Equipment  Used in commercial audio and AV electronics where audio-tuned capacitor behavior and compact radial packaging are required.
• Audio Signal Coupling and Decoupling  Suited for signal path and power-supply decoupling in audio circuits that require a 25 V, 47 µF polarized capacitor.
• Compact Consumer Electronics  Applicable where small radial electrolytic capacitors are needed to fit constrained PCB real estate in consumer audio devices.

Unique Advantages

• Audio-focused formulation:  Part of the UKW series developed to provide a harmonious balance of sound quality through its electrolyte design.
• Measurable loss performance:  tanδ = 0.16 at 20 °C, 120 Hz—specified loss characteristics that aid predictable frequency response in audio circuits.
• Defined ripple capability:  Specified ripple current ratings (115 mA at 120 Hz, 230 mA at 10 kHz) for reliable filtering across low and higher audio frequencies.
• Small form factor:  φ5 × 11 mm radial can with 2 mm lead spacing enables high-density PCB layouts without sacrificing rated capacitance.
• Durability at elevated temperature:  2000-hour endurance at 85 °C supports sustained operation in heated enclosures or near heat-generating components.
• Regulatory compliance:  RoHS compliance supports deployment in markets requiring restricted-substance conformance.

Why Choose UKW1E470MDD?

UKW1E470MDD is positioned for designers who need a compact, polarized aluminum electrolytic capacitor tailored for audio and AV applications. Its audio-focused electrolyte, defined loss angle, and frequency-aware ripple ratings provide predictable behavior for signal and power decoupling in audio circuits.

This part is appropriate for projects prioritizing a small radial package, clear electrical specifications (47 µF, 25 V, specified tanδ and leakage), and a defined endurance rating at elevated temperature. It delivers verifiable performance characteristics that simplify component selection for audio-focused designs.

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