UKW1E331MPD

The UKW1E331MPD is a radial-lead aluminum electrolytic capacitor in Nichicon’s UKW series, engineered for audio and AV equipment. It combines a 330 µF capacitance with a 25 V rating in a compact φ10 × 12.5 mm can optimized for audio circuitry.

Designed with a low-loss electrolyte formulation and audio-focused characteristics, this polarized capacitor delivers measured loss (tanδ) of 0.16 (20°C, 120 Hz), specified ripple-current capability, and a 2,000-hour endurance at 85°C for stable performance in audio applications.

Key Features

• Capacitance & Voltage: 330 µF nominal capacitance with a 25 V rated voltage and tolerance of −20% to +20% for predictable filtering and decoupling on 25 V rails.
• Audio-optimized Electrolyte: Part of the UKW series developed for harmonious sound quality in AV and audio equipment, leveraging Nichicon’s electrolyte formulation.
• Low Loss (tanδ): tanδ = 0.16 measured at 20°C, 120 Hz, supporting lower dissipation in audio signal and power-decoupling applications.
• Ripple Current Handling: Low-frequency ripple current 420 mA (120 Hz) and high-frequency ripple current 630 mA (10 kHz), enabling reliable smoothing under varying ripple spectra.
• Leakage Current: Specified leakage current of 247.5 µA for predictable bias behavior in sensitive circuits.
• Temperature & Endurance: Operating range −40°C to +85°C with rated endurance of 2,000 hours at 85°C.
• Package & Mounting: Compact radial can, size φ10 × 12.5 mm (diameter × length), lead spacing 5 mm (±0.5 mm), and available in Bulk (no terminal forming) or Bag packing.
• RoHS Compliant: Meets RoHS directive requirements as indicated for the UKW series.

Typical Applications

• Audio Equipment: Used in audio circuits and modules where capacitor characteristics tuned for sound quality are required.
• AV Systems: Suited for AV equipment power filtering and decoupling where a balance of low loss and ripple handling improves performance.
• Audio Power Supplies and Decoupling: Employed on 25 V rails to stabilize supply lines and manage ripple in audio electronics designs.

Unique Advantages

• Audio-focused formulation: Electrolyte and construction targeted at harmonious sound quality for AV and audio applications.
• Measured low dissipation: tanδ = 0.16 at 20°C/120 Hz reduces energy loss in audio signal paths and power stages.
• Dual-frequency ripple capability: Specified ripple currents at 120 Hz and 10 kHz (420 mA and 630 mA) support both low- and high-frequency ripple environments.
• Compact radial can: φ10 × 12.5 mm size and 5 mm lead spacing fit dense board layouts while preserving necessary capacitance.
• Robust temperature endurance: Rated for −40°C to +85°C with 2,000-hour endurance at 85°C for predictable lifecycle behavior.
• Packaging flexibility: Available in Bulk (no terminal forming) or Bag packing to match production and assembly workflows.

Why Choose UKW1E331MPD?

The UKW1E331MPD positions itself as a compact, audio-oriented electrolytic capacitor that balances capacitance, low dissipation, and ripple-handling in a small radial can. Its specifications—330 µF at 25 V, measured tanδ, defined ripple currents, and 2,000-hour endurance at 85°C—make it a practical choice for designers of audio and AV equipment seeking predictable filtering and decoupling performance.

This part is well suited to engineers and procurement teams specifying polarized electrolytics for audio-oriented power rails and signal support where space is limited and component behavior over temperature and time must be defined.

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