UKA1C331MPD

The UKA1C331MPD is a radial-lead aluminum electrolytic capacitor from Nichicon’s UKA series, optimized for high-grade audio equipment and related analog power applications. It provides 330 µF capacitance at a 16 V rating in a compact φ8 × 11.5 mm can, delivering stable decoupling and filtering across a wide temperature range.

Key value propositions include a wide operating temperature range (−55°C to 105°C), a 2000-hour endurance at 105°C, and performance parameters tailored for audio use such as low loss (tan δ) and defined ripple current ratings.

Key Features

• Capacitance & Voltage — 330 µF nominal capacitance at a rated voltage of 16 V, suitable for DC rail smoothing and bulk decoupling in low-voltage audio circuits.
• Tolerance — ±20% capacitance tolerance (at 120 Hz, 20°C) for predictable sizing in power and decoupling designs.
• Low-loss Characteristics — tan δ of 0.22 (max) at 16 V, 120 Hz, supporting reduced dissipation in audio power paths.
• Ripple Current Ratings — 265 mA at 120 Hz (low frequency) and 397.5 mA at 10 kHz (high frequency) to handle AC content on power rails.
• Leakage Current — 158.4 µA specified leakage current, aiding predictable biasing and low standby current in audio systems.
• Reliability & Qualification — AEC-Q200 rated with 2000 hours endurance at 105°C, providing a defined lifecycle for demanding environments.
• Package & Mounting — Radial lead, can package with φ8 × 11.5 mm dimensions (L: 1.15 cm × D: 0.8 cm) and 3.5 mm lead spacing for through-hole mounting and easy PCB placement.
• Production & Packaging — Supplied in bulk/bag packaging and listed for mass production availability.

Typical Applications

• High-grade audio equipment — Power rail smoothing and decoupling in amplifiers, preamplifiers, and other high-fidelity audio systems where low loss and stable capacitance matter.
• Analog power filtering — Decoupling and bulk storage on analog and mixed-signal boards that require stable performance from −55°C to 105°C.
• Audio electronics modules — Local energy reservoir and ripple suppression for DAC/ADC support circuitry and audio front-end power rails.

Unique Advantages

• Wide operating temperature range: −55°C to 105°C supports deployment across harsh thermal environments and varied product conditions.
• Defined long-term endurance: 2000 hours at 105°C provides a measurable lifecycle for reliability planning and maintenance forecasts.
• Audio-focused electrical profile: Low tan δ (0.22 at 16 V) combined with controlled leakage current enhances performance in audio power paths.
• Clear ripple-current capability: Specified ripple ratings at both 120 Hz and 10 kHz enable designers to size capacitors for real-world AC stress on rails.
• AEC-Q200 rated: Qualification for reliability-focused designs where standardized passive component qualification is required.
• Compact through-hole form factor: φ8 × 11.5 mm radial can with 3.5 mm lead spacing simplifies board layout for retrofit and new designs requiring through-hole components.

Why Choose UKA1C331MPD?

UKA1C331MPD is positioned for engineers specifying reliable, audio-oriented electrolytic capacitance in compact through-hole form. Its combination of 330 µF at 16 V, low-loss characteristics, defined ripple handling, and long endurance at elevated temperature make it a practical choice for power filtering and decoupling in high-grade audio and precision analog systems.

Designed and manufactured as part of Nichicon’s UKA series, this part is suited to customers seeking predictable electrical behavior, standardized qualification (AEC-Q200), and consistent supply for production assemblies.

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